How long is the flight from United Kingdom to Chicago O'Hare Intl Airport?

There are many flights that can get you from United Kingdom to Chicago O'Hare Intl Airport in 12h. Fly via TAP AIR PORTUGAL, Scandinavian Airlines, or Icelandair to get the fastest option. Airlines will cover a distance of 3699 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from United Kingdom to Chicago O'Hare Intl Airport one-way?

The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £317. However, be on the lookout for offers from United Airlines and Icelandair, as they are both options that can get you from United Kingdom to Chicago O'Hare Intl Airport for a low price.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What are the most popular routes from United Kingdom to Chicago O'Hare Intl Airport?

Most travelers choose London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl or London Stansted - Chicago O'Hare Intl when deciding on the best route from United Kingdom to Chicago O'Hare Intl Airport.

What are the cheapest flights from United Kingdom to Chicago O'Hare Intl Airport?

While on average a flight from United Kingdom to Chicago O'Hare Intl Airport is generally £1,198, our data shows the cheapest flight currently is £376. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £378 for that flight.

What are the most reliable airlines from United Kingdom to Chicago O'Hare Intl Airport?

No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago O'Hare Intl Airport consider choosing Royal Jordanian (100%), SriLankan Airlines (91%) or Air Canada (89%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from United Kingdom to Chicago O'Hare Intl Airport?

British Airways, Aer Lingus and Icelandair are the most popular airlines when flying from United Kingdom to Chicago O'Hare Intl Airport.

Can I find deals for flights from United Kingdom to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on United Kingdom to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from United Kingdom to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to O'Hare Intl.

Can I find deals for business class flights from United Kingdom to O'Hare Intl?

Yes. Cheapflights offers flight deals from United Kingdom to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£276+ Cheap Flights from the United Kingdom to Chicago O'Hare Intl Airport

Cheap flight deals from United Kingdom to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from United Kingdom to O'Hare Intl
Explore the most affordable flight options available from United Kingdom to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2026.

Thu 24/1215:05 -

2 stops32h 15m

Thu 31/1218:30 -

2 stops23h 29m

Deal found 9/11£410

Thu 3/1219:00 -

2 stops28h 20m

Thu 10/1218:30 -

2 stops23h 29m

Deal found 5/11£499

Thu 19/1111:25 -

1 stop34h 05m

Wed 2/1219:00 -

1 stop33h 40m

Deal found 8/11£517

Tue 24/1110:00 -

2 stops35h 30m

Sun 29/1120:10 -

2 stops18h 55m

Deal found 6/11£522

Wed 2/1211:55 -

1 stop11h 25m

Sun 6/1218:30 -

1 stop10h 15m

Deal found 6/11£523

Thu 19/1107:15 -

2 stops16h 05m

Thu 26/1118:30 -

2 stops20h 45m

Deal found 6/11£526

Wed 2/1215:35 -

2 stops31h 10m

Thu 14/119:10 -

1 stop20h 30m

Deal found 7/11£526

Tue 1/1208:50 -

2 stops14h 30m

Mon 7/1218:30 -

2 stops12h 30m

Deal found 4/11£526

Mon 23/1106:40 -

1 stop16h 05m

Mon 30/1119:10 -

2 stops15h 15m

Deal found 5/11£526

Wed 2/1206:30 -

2 stops16h 50m

Wed 9/1218:30 -

2 stops21h 50m

Deal found 5/11£528

Sat 12/1216:35 -

1 stop28h 55m

Sun 10/120:10 -

2 stops18h 25m

Deal found 6/11£529

Wed 2/1206:00 -

1 stop15h 30m

Sun 6/1220:10 -

1 stop19h 25m

Deal found 4/11£529

Best flights from United Kingdom to O'Hare Intl
Discover carefully curated flight deals from United Kingdom to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Sat 13/211:25 -

1 stop34h 05m

Fri 19/220:10 -

1 stop32h 30m

Deal found 8/11£536

Sun 6/1219:15 -

1 stop27h 30m

Thu 10/1219:10 -

2 stops34h 35m

Deal found 4/11£554

Thu 24/1207:10 -

2 stops16h 10m

Thu 31/1218:30 -

2 stops20h 00m

Deal found 9/11£570

Thu 21/111:20 -

1 stop12h 00m

Mon 25/118:30 -

1 stop9h 50m

Deal found 5/11£603

Fri 12/213:25 -

1 stop11h 50m

Tue 23/221:00 -

1 stop13h 30m

Deal found 5/11£607

Thu 10/1206:00 -

2 stops18h 26m

Thu 24/1210:30 -

2 stops17h 15m

Deal found 9/11£618

Tue 16/310:15 -

2 stops15h 22m

Sun 21/317:25 -

1 stop11h 15m

Deal found 5/11£622

Tue 20/406:05 -

1 stop13h 55m

Fri 30/416:05 -

1 stop24h 00m

Deal found 9/11£634

Mon 7/1213:30 -

1 stop12h 35m

Wed 23/1213:00 -

1 stop15h 50m

Deal found 5/11£650

Thu 14/112:10 -

1 stop13h 05m

Sat 30/116:00 -

1 stop11h 15m

Deal found 4/11£674

Mon 7/1207:50 -

Nonstop9h 05m

Wed 23/1215:45 -

Nonstop8h 10m

Deal found 4/11£704

Sat 21/1106:00 -

1 stop14h 00m

Wed 23/1215:45 -

Nonstop8h 10m

Deal found 6/11£707

Mon 23/1106:30 -

1 stop17h 50m

Mon 30/1120:15 -

1 stop38h 15m

Deal found 8/11£736

Tue 24/1108:40 -

2 stops15h 35m

Sat 28/1121:35 -

2 stops14h 15m

Deal found 8/11£755

Wed 2/1210:00 -

2 stops37h 23m

Wed 9/1213:35 -

2 stops20h 50m

Deal found 4/11£960

Thu 19/1111:25 -

1 stop34h 05m

Wed 2/1219:00 -

1 stop33h 40m

Deal found 7/11£538

Wed 9/1219:10 -

1 stop27h 35m

Sun 10/119:10 -

1 stop17h 15m

Deal found 8/11£576

Wed 23/1208:05 -

1 stop12h 05m

Wed 30/1215:55 -

1 stop11h 00m

Deal found 8/11£594

Thu 14/106:00 -

2 stops16h 27m

Mon 15/213:10 -

2 stops14h 35m

Deal found 9/11£624

Tue 20/406:05 -

1 stop13h 55m

Sat 1/516:05 -

1 stop12h 10m

Deal found 9/11£634

Fri 5/217:35 -

1 stop26h 50m

Sat 20/216:25 -

1 stop23h 50m

Deal found 5/11£637

Thu 3/1211:55 -

1 stop11h 25m

Mon 7/1218:30 -

1 stop9h 25m

Deal found 6/11£654

Thu 24/1207:40 -

2 stops15h 40m

Thu 31/1218:30 -

2 stops21h 10m

Deal found 8/11£600

Thu 19/1112:55 -

2 stops33h 50m

Wed 2/1219:10 -

1 stop17h 25m

Deal found 8/11£611

Thu 17/1212:05 -

1 stop12h 15m

Sun 27/1220:05 -

1 stop14h 40m

Deal found 5/11£678

Sun 13/1206:00 -

1 stop14h 25m

Mon 28/1216:25 -

1 stop11h 15m

Deal found 6/11£627

Thu 26/1107:50 -

1 stop12h 20m

Sat 5/1220:30 -

Nonstop7h 55m

Deal found 7/11£691

Wed 21/406:05 -

1 stop13h 55m

Fri 30/416:05 -

1 stop12h 10m

Deal found 9/11£634

Thu 24/1213:15 -

2 stops34h 05m

Thu 31/1218:30 -

3 stops32h 15m

Deal found 9/11£606

Thu 4/219:10 -

1 stop27h 35m

Mon 8/206:30 -

2 stops30h 00m

Deal found 7/11£612

Find flight deals from United Kingdom to O'Hare Intl

Round-trip from	£410
One-way from	£276
Popular in	August
Cheapest in	February
Average price	£597
Good round-trip deal	£683 or less
Good one-way deal	£500 or less

24/12-31/12
4 total stops
55h 44m total
United Kingdom to Chicago

Search Deals

10/4-31/12
2 total stops
35h 15m total
United Kingdom to Chicago

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£58 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Price to beat on a round-trip flight from United Kingdom to Chicago O'Hare Intl.

Search Deals

Price to beat on a one-way flight from United Kingdom to Chicago O'Hare Intl.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Sat 12/12

10:45-15:30

3 stops34h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£324

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Mon 16/11

18:35-17:20

2 stops28h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£332

BirminghamChicago

BHX Birmingham - ORD Chicago O'Hare Intl

BHXORD

Birmingham

Wed 6/1

07:55-17:20

3 stops39h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£342

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Mon 14/12

06:10-01:08

3 stops48h 58m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£347

BirminghamChicago

BHX Birmingham - ORD Chicago O'Hare Intl

BHXORD

Birmingham

Tue 5/1

13:35-17:20

3 stops57h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£353

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Tue 4/5

20:45-21:25

3 stops30h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£355

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Fri 9/4

06:00-18:15

2 stops18h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£356

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Fri 8/1

20:40-17:20

3 stops26h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£368

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Fri 18/12

21:50-17:20

3 stops49h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£382

BirminghamChicago

BHX Birmingham - ORD Chicago O'Hare Intl

BHXORD

Birmingham

Thu 7/1

09:10-19:15

1 stop16h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£442

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from United Kingdom to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from United Kingdom with our price prediction graph.

EDI-ORD

MAN-ORD

LGW-ORD

LHR-ORD

LBA-ORD

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Chicago O'Hare Intl Airport

GB0-ORD

EDI-ORD

MAN-ORD

LGW-ORD

LHR-ORD

What is the cheapest month to book a flight from United Kingdom to Chicago O'Hare Intl Airport?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Chicago O'Hare Intl Airport (average of £530). Flying from United Kingdom to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to ORD?

When flying from United Kingdom to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Chicago O'Hare Intl Airport

The most flights from GB0 to ORD are scheduled on a Friday (44 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (36 on average).

How often are flights from the United Kingdom to Chicago delayed?

About 8% of weekly flights between United Kingdom and Chicago have experienced delays in the past year, with the average delay time being 179 minutes.

What is the most punctual flight time for the United Kingdom to Chicago flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Chicago flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Chicago O'Hare Intl Airport?

The price you pay for your flight from United Kingdom to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing O'Hare Intl

Get a feel of what it's like to fly with Aer Lingus,United Airlines, andIcelandair from the United Kingdom to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,883 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Aer Lingus

7.3

Good

1,883 reviews

Aer Lingus

7.3

Good

1,883 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

United Airlines

7.3

Good

10,472 reviews

Aer Lingus

7.3

Good

1,883 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Icelandair

6.9

Okay

767 reviews

Aer Lingus

7.3

Good

1,883 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Lufthansa

6.8

Okay

8,292 reviews

Aer Lingus

7.3

Good

1,883 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

British Airways

6.7

Okay

8,286 reviews

Aer Lingus

7.3

Good

1,883 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Related info for your journey

How long is the flight from United Kingdom to Chicago O'Hare Intl Airport?
There are many flights that can get you from United Kingdom to Chicago O'Hare Intl Airport in 12h. Fly via TAP AIR PORTUGAL, Scandinavian Airlines, or Icelandair to get the fastest option. Airlines will cover a distance of 3699 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from United Kingdom to Chicago O'Hare Intl Airport one-way?
The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £317. However, be on the lookout for offers from United Airlines and Icelandair, as they are both options that can get you from United Kingdom to Chicago O'Hare Intl Airport for a low price.
What are the most popular routes from United Kingdom to Chicago O'Hare Intl Airport?
Most travelers choose London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl or London Stansted - Chicago O'Hare Intl when deciding on the best route from United Kingdom to Chicago O'Hare Intl Airport.
What are the most reliable airlines from United Kingdom to Chicago O'Hare Intl Airport?
No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago O'Hare Intl Airport consider choosing Royal Jordanian (100%), SriLankan Airlines (91%) or Air Canada (89%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from United Kingdom to Chicago O'Hare Intl Airport?
While on average a flight from United Kingdom to Chicago O'Hare Intl Airport is generally £1,198, our data shows the cheapest flight currently is £376. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £378 for that flight.
Can I find deals for flights from United Kingdom to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on United Kingdom to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to O'Hare Intl.
Can I find deals for business class flights from United Kingdom to O'Hare Intl?
Yes. Cheapflights offers flight deals from United Kingdom to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from United Kingdom to Chicago O'Hare Intl Airport?
Currently, February is the cheapest month in which you can book a flight from United Kingdom to Chicago O'Hare Intl Airport (average of £530). Flying from United Kingdom to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £829). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Stansted to O'Hare Intl flights

Heathrow to Midway flights

London City to O'Hare Intl flights

Luton to O'Hare Intl flights

Manchester to O'Hare Intl flights

Edinburgh to O'Hare Intl flights

Gatwick to Midway flights

Manchester to Midway flights

Glasgow Intl to O'Hare Intl flights

Edinburgh to Midway flights

Birmingham to Midway flights

Birmingham to O'Hare Intl flights

Belfast Intl to O'Hare Intl flights

Dublin to O'Hare Intl flights

Belfast City to O'Hare Intl flights

Leeds to O'Hare Intl flights

Southend to O'Hare Intl flights

Glasgow Intl to Midway flights

Bristol to O'Hare Intl flights

London City to Midway flights

Inverness to O'Hare Intl flights

Liverpool to O'Hare Intl flights

Newcastle upon Tyne to O'Hare Intl flights

Leeds to Midway flights

Athens to O'Hare Intl flights

Dublin to Midway flights

Exeter to O'Hare Intl flights

Bristol to Midway flights

Arlanda to O'Hare Intl flights

Southampton to O'Hare Intl flights

Vienna to O'Hare Intl flights

Frederic Chopin to O'Hare Intl flights

Newcastle upon Tyne to Midway flights

Newquay to O'Hare Intl flights

Norwich to O'Hare Intl flights

Amsterdam to O'Hare Intl flights

Krakow to O'Hare Intl flights

Barcelona-El Prat to O'Hare Intl flights

Doncaster to O'Hare Intl flights

Bruxelles-National to O'Hare Intl flights

Madrid to O'Hare Intl flights

Cardiff to O'Hare Intl flights

Top 10 airlines flying from United Kingdom to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£30	Average£62	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Icelandair	Cheapest£204	Average£575	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£213	Average£719	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Turkish Airlines	Cheapest£350	Average£697	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
JetBlue	Cheapest£385	Average£651	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£387	Average£573	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£389	Average£598	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
British Airways	Cheapest£425	Average£684	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Finnair	Cheapest£430	Average£731	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
American Airlines	Cheapest£435	Average£769	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to O'Hare Intl?

When you search for this flight from United Kingdom to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to O'Hare Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to O'Hare Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to O'Hare Intl become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from the United Kingdom to Chicago O'Hare Intl Airport from £276

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to O'Hare Intl

Cheapest flights from United Kingdom to O'Hare IntlExplore the most affordable flight options available from United Kingdom to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2026.

Explore the most affordable flight options available from United Kingdom to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2026.

Best flights from United Kingdom to O'Hare IntlDiscover carefully curated flight deals from United Kingdom to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Discover carefully curated flight deals from United Kingdom to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Direct flights from United Kingdom to O'Hare IntlExplore direct flight options from United Kingdom to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 November 2026.

Explore direct flight options from United Kingdom to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 November 2026.

Last-minute flights from United Kingdom to O'Hare IntlDiscover last-minute flight deals from United Kingdom to O'Hare Intl. Data last updated 9 November 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to O'Hare Intl. Data last updated 9 November 2026 and is based on user searches.

One-way flights from United Kingdom to O'Hare IntlSearch for one-way flight options from United Kingdom to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

Search for one-way flight options from United Kingdom to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.

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Use the filters below to find and compare flights from the United Kingdom to Chicago O'Hare Intl Airport that are best for you.

Best time to book a flight from United Kingdom to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from United Kingdom with our price prediction graph.

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What is the cheapest month to book a flight from United Kingdom to Chicago O'Hare Intl Airport?

What is the cheapest time of day to fly from GB to ORD?

Find hourly flight availability from United Kingdom to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 November 2026.

When flying from United Kingdom to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Chicago O'Hare Intl Airport

The most flights from GB0 to ORD are scheduled on a Friday (44 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (36 on average).

How often are flights from the United Kingdom to Chicago delayed?

About 8% of weekly flights between United Kingdom and Chicago have experienced delays in the past year, with the average delay time being 179 minutes.

What is the most punctual flight time for the United Kingdom to Chicago flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Chicago flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Chicago O'Hare Intl Airport?

The price you pay for your flight from United Kingdom to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing O'Hare Intl

Get a feel of what it's like to fly with Aer Lingus,United Airlines, andIcelandair from the United Kingdom to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from United Kingdom to Chicago O'Hare Intl Airport?

What are the cheapest airlines to fly from United Kingdom to Chicago O'Hare Intl Airport one-way?

What are the most popular routes from United Kingdom to Chicago O'Hare Intl Airport?

What are the most reliable airlines from United Kingdom to Chicago O'Hare Intl Airport?

What are the cheapest flights from United Kingdom to Chicago O'Hare Intl Airport?

Can I find deals for flights from United Kingdom to O'Hare Intl that include hotel bookings?

How can I find direct flights from United Kingdom to O'Hare Intl?

Can I find deals for business class flights from United Kingdom to O'Hare Intl?

What is the cheapest month to book a flight from United Kingdom to Chicago O'Hare Intl Airport?

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Alternative routes for United Kingdom to O'Hare Intl

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Complete your trip

Complete your trip to O'Hare Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Illinois

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Find flights from United Kingdom to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to O'Hare Intl

Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 November 2026.

United Kingdom and O'Hare Intl flights

Browse other United Kingdom and O'Hare Intl flight options. Last updated on 9 November 2026.

Popular flight searches

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United Kingdom to O'Hare Intl flights

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Top 10 airlines flying from United Kingdom to O'Hare Intl

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Cheapest flights from United Kingdom to O'Hare Intl
Explore the most affordable flight options available from United Kingdom to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2026.

Best flights from United Kingdom to O'Hare Intl
Discover carefully curated flight deals from United Kingdom to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.

Direct flights from United Kingdom to O'Hare Intl
Explore direct flight options from United Kingdom to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 9 November 2026.

Last-minute flights from United Kingdom to O'Hare Intl
Discover last-minute flight deals from United Kingdom to O'Hare Intl. Data last updated 9 November 2026 and is based on user searches.

One-way flights from United Kingdom to O'Hare Intl
Search for one-way flight options from United Kingdom to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.