How long is the flight from United Kingdom to Chicago?

Departing from United Kingdom to Chicago will take you 11h 45m. The distance from United Kingdom to Chicago is about 3663 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

One-way options have recently been found by users for as low as £308 on JetBlue. Other airlines that offer cheap prices include Aer Lingus from £314 and United Airlines from £318 one-way.

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago, 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?

The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl and London City - Chicago O'Hare Intl.

What are the cheapest flights from United Kingdom to Chicago?

Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay £1,802, our data indicates the cheapest price to be £412. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £334.

What are the most reliable airlines from United Kingdom to Chicago?

No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago consider choosing Air Canada (87%), Austrian Airlines (87%) or United Airlines (87%) 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?

When booking a flight from United Kingdom to Chicago, you may want to consider flying on British Airways, Aer Lingus or Icelandair as they are the most popular for this route.

Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

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

How can I find direct flights from United Kingdom to Chicago?

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

Can I find deals for business class flights from United Kingdom to Chicago?

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

£280+ Cheap Flights from the United Kingdom to Chicago

Cheap flight deals from United Kingdom to Chicago

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Mon 23/1107:35 -

2 stops15h 45m

Tue 1/1218:30 -

2 stops21h 05m

Deal found 6/9£430

Thu 12/1107:30 -

2 stops15h 50m

Sun 15/1118:30 -

2 stops19h 15m

Deal found 7/9£452

Thu 19/1111:20 -

1 stop12h 00m

Mon 30/1118:30 -

1 stop9h 50m

Deal found 6/9£459

Thu 5/1111:20 -

1 stop12h 00m

Mon 9/1118:30 -

1 stop9h 50m

Deal found 10/9£466

Thu 12/1111:20 -

1 stop12h 00m

Mon 7/1218:30 -

1 stop9h 50m

Deal found 6/9£469

Mon 2/1107:50 -

1 stop12h 20m

Sun 15/1120:05 -

1 stop10h 40m

Deal found 7/9£477

Sun 1/1106:00 -

1 stop14h 10m

Sun 1/1120:05 -

1 stop19h 30m

Deal found 8/9£489

Fri 20/1107:35 -

1 stop12h 35m

Mon 23/1115:55 -

1 stop13h 40m

Deal found 6/9£490

Sat 14/1113:10 -

1 stop11h 10m

Sat 21/1120:05 -

1 stop19h 45m

Deal found 9/9£494

Mon 5/1007:55 -

2 stops34h 40m

Wed 14/1019:05 -

2 stops21h 00m

Deal found 8/9£500

Thu 5/1107:30 -

1 stop12h 40m

Tue 10/1115:55 -

1 stop11h 10m

Deal found 10/9£505

Tue 6/1022:45 -

1 stop21h 15m

Tue 13/1015:45 -

1 stop19h 40m

Deal found 8/9£509

Best flights from United Kingdom to Chicago
Discover carefully curated flight deals from United Kingdom to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Sat 21/1111:05 -

2 stops35h 40m

Sat 5/1219:15 -

3 stops21h 25m

Deal found 6/9£533

Fri 27/1112:10 -

1 stop12h 10m

Thu 3/1215:55 -

1 stop10h 10m

Deal found 8/9£538

Tue 6/1006:00 -

1 stop13h 20m

Tue 13/1016:20 -

1 stop34h 00m

Deal found 6/9£548

Fri 19/221:05 -

2 stops25h 40m

Fri 26/219:15 -

2 stops31h 40m

Deal found 5/9£551

Sat 23/111:35 -

1 stop11h 45m

Sun 24/118:30 -

1 stop9h 25m

Deal found 7/9£561

Sat 26/908:00 -

Nonstop9h 10m

Wed 7/1016:25 -

Nonstop8h 20m

Deal found 8/9£576

Mon 23/1110:25 -

Nonstop9h 20m

Thu 3/1217:45 -

Nonstop8h 10m

Deal found 7/9£576

Sat 14/1108:40 -

1 stop11h 45m

Sat 20/217:55 -

1 stop11h 45m

Deal found 9/9£584

Fri 13/1110:00 -

2 stops18h 54m

Sun 13/1209:37 -

2 stops15h 43m

Deal found 10/9£584

Fri 9/1009:25 -

1 stop12h 30m

Fri 16/1014:20 -

1 stop12h 05m

Deal found 10/9£606

Tue 20/1021:15 -

2 stops45h 25m

Sat 24/1018:05 -

1 stop34h 45m

Deal found 5/9£630

Tue 24/1117:20 -

1 stop22h 40m

Thu 3/1220:15 -

1 stop38h 05m

Deal found 7/9£669

Fri 16/1009:20 -

1 stop10h 55m

Mon 19/1016:50 -

1 stop10h 00m

Deal found 6/9£726

Sun 1/1108:50 -

1 stop11h 20m

Sun 8/1120:05 -

1 stop11h 20m

Deal found 8/9£539

Thu 5/1108:20 -

2 stops15h 00m

Tue 10/1115:55 -

2 stops15h 50m

Deal found 9/9£541

Sun 27/908:00 -

Nonstop9h 10m

Wed 7/1016:25 -

Nonstop8h 20m

Deal found 8/9£576

Thu 5/1112:55 -

2 stops33h 50m

Mon 9/1119:15 -

2 stops35h 00m

Deal found 10/9£582

Tue 17/1106:30 -

2 stops16h 09m

Tue 1/1211:28 -

1 stop14h 22m

Deal found 9/9£584

Tue 20/1015:40 -

1 stop32h 35m

Sun 25/1019:30 -

1 stop13h 10m

Deal found 5/9£585

Sat 31/1006:20 -

2 stops16h 40m

Sat 7/1106:04 -

1 stop19h 46m

Deal found 10/9£590

Sat 14/1112:10 -

1 stop12h 10m

Sat 28/1115:55 -

1 stop11h 10m

Deal found 9/9£539

Thu 12/1108:20 -

2 stops15h 00m

Tue 24/1113:55 -

2 stops17h 50m

Deal found 6/9£547

Tue 24/1119:05 -

1 stop23h 35m

Wed 2/1216:10 -

1 stop14h 40m

Deal found 7/9£628

Tue 15/1221:20 -

2 stops24h 10m

Wed 30/1219:00 -

1 stop32h 50m

Deal found 8/9£644

Thu 12/1110:25 -

2 stops36h 20m

Fri 27/1119:15 -

2 stops18h 25m

Deal found 8/9£590

Fri 5/306:30 -

2 stops16h 20m

Sun 14/312:30 -

1 stop13h 35m

Deal found 6/9£590

Mon 5/1008:50 -

1 stop11h 10m

Mon 12/1015:45 -

1 stop11h 20m

Deal found 5/9£540

Fri 2/1009:10 -

1 stop11h 05m

Mon 19/1016:50 -

1 stop17h 20m

Deal found 7/9£596

Fri 20/1108:20 -

2 stops15h 00m

Mon 23/1115:55 -

2 stops15h 50m

Deal found 10/9£562

Fri 19/210:55 -

1 stop37h 25m

Fri 26/220:15 -

1 stop31h 40m

Deal found 5/9£689

Find flight deals from United Kingdom to Chicago

Round-trip from	£430
One-way from	£280
Popular in	August
Cheapest in	February
Average price	£588
Good round-trip deal	£605 or less
Good one-way deal	£517 or less

23/11-1/12
4 total stops
36h 50m total
United Kingdom to Chicago

Search Deals

28/10-31/12
2 total stops
34h 20m total
United Kingdom to Chicago

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£63 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from United Kingdom to Chicago (CHI).

Search Deals

Price to beat on a one-way flight from United Kingdom to Chicago (CHI).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Thu 26/11

13:35-18:20

3 stops34h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£338

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 6/12

20:05-16:15

1 stop26h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£349

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Tue 15/9

20:35-12:40

3 stops46h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£350

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Sat 21/11

12:05-15:30

3 stops33h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£350

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 16/9

11:55-12:40

3 stops30h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£351

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Mon 2/11

17:10-16:15

1 stop29h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£352

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Mon 7/12

09:00-16:15

1 stop13h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£355

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sat 5/12

20:05-16:15

1 stop26h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£389

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Mon 30/11

07:30-00:01

2 stops22h 31m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£394

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Wed 14/10

12:10-11:24

1 stop29h 14m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£403

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from United Kingdom to Chicago

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

LTN-ORD

LHR-ORD

GLA-ORD

LHR-MDW

LGW-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

GB0-CHI

LTN-ORD

LHR-ORD

GLA-ORD

LHR-MDW

What is the cheapest month to book a flight from United Kingdom to Chicago?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of £488). Flying from United Kingdom to Chicago in August is currently the most expensive (average of £791). 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 CHI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Chicago as you normally would.

Weekly flight availability from United Kingdom to Chicago

The most flights from GB0 to CHI are scheduled on a Wednesday (49 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (42 on average).

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

About 10% of weekly flights between United Kingdom and Chicago have experienced delays in the past year, with the average delay time being 181 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 Tuesday 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 6% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Chicago?

The best time to book flights from United Kingdom to Chicago is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown with Scandinavian Airlines,Aer Lingus, andIcelandair from the United Kingdom to Chicago. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Scandinavian Airlines

7.4

Good

1,984 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Scandinavian Airlines

7.4

Good

1,984 reviews

Scandinavian Airlines

7.4

Good

1,984 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Aer Lingus

7.3

Good

1,755 reviews

Scandinavian Airlines

7.4

Good

1,984 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Icelandair

6.9

Okay

741 reviews

Scandinavian Airlines

7.4

Good

1,984 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Lufthansa

6.8

Okay

8,213 reviews

Scandinavian Airlines

7.4

Good

1,984 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

British Airways

6.7

Okay

8,210 reviews

Scandinavian Airlines

7.4

Good

1,984 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Robert,Jul 2026

CPH - SFO

First rate expereince.! We've never flown SAS before but will defintely fly it again.

Related info for your journey

How long is the flight from United Kingdom to Chicago?
Departing from United Kingdom to Chicago will take you 11h 45m. The distance from United Kingdom to Chicago is about 3663 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from United Kingdom to Chicago one-way?
One-way options have recently been found by users for as low as £308 on JetBlue. Other airlines that offer cheap prices include Aer Lingus from £314 and United Airlines from £318 one-way.
What are the most popular routes from United Kingdom to Chicago?
The most popular flight routes from United Kingdom to Chicago are London Heathrow - Chicago O'Hare Intl, London Gatwick - Chicago O'Hare Intl and London City - Chicago O'Hare Intl.
What are the most reliable airlines from United Kingdom to Chicago?
No one likes to see their flight delayed. When booking a flight from United Kingdom to Chicago consider choosing Air Canada (87%), Austrian Airlines (87%) or United Airlines (87%) 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?
Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay £1,802, our data indicates the cheapest price to be £412. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £334.
Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?
Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.
Can I find deals for business class flights from United Kingdom to Chicago?
Yes. Cheapflights offers flight deals from United Kingdom to Chicago 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?
Currently, February is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of £488). Flying from United Kingdom to Chicago in August is currently the most expensive (average of £791). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Heathrow to O'Hare Intl flights

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London City to O'Hare Intl flights

Stansted to O'Hare Intl flights

Heathrow to Midway flights

Luton to O'Hare Intl flights

Heathrow to St. Louis flights

Manchester to O'Hare Intl flights

Edinburgh to O'Hare Intl flights

Gatwick to St. Louis flights

Manchester to Midway flights

Stansted to St. Louis flights

Glasgow Intl to O'Hare Intl flights

Gatwick to Midway flights

London City to St. Louis flights

Birmingham to O'Hare Intl flights

Luton to St. Louis flights

Glasgow Intl to Midway flights

Edinburgh to Midway flights

Bristol to O'Hare Intl flights

Newcastle upon Tyne to O'Hare Intl flights

Manchester to St. Louis flights

Liverpool to O'Hare Intl flights

Birmingham to Midway flights

Bristol to Midway flights

Dublin to O'Hare Intl flights

Newcastle upon Tyne to Midway flights

Edinburgh to St. Louis flights

Manchester to Peoria flights

Istanbul to O'Hare Intl flights

Dublin to Midway flights

Birmingham to St. Louis flights

Heathrow to Moline flights

Newquay to O'Hare Intl flights

Belfast Intl to O'Hare Intl flights

Belfast City to O'Hare Intl flights

Leeds to O'Hare Intl flights

Heathrow to Evansville flights

Southampton to O'Hare Intl flights

Exeter to O'Hare Intl flights

Heathrow to Champaign flights

Newcastle upon Tyne to St. Louis flights

Glasgow Intl to St. Louis flights

Heathrow to Peoria flights

London City to Moline flights

Athens to O'Hare Intl flights

Grimsby to O'Hare Intl flights

Top 10 airlines flying from United Kingdom to Chicago

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£29	Average£61	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Icelandair	Cheapest£202	Average£566	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£327	Average£703	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Turkish Airlines	Cheapest£345	Average£687	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights
Scandinavian Airlines	Cheapest£376	Average£495	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
JetBlue	Cheapest£380	Average£643	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
TAP AIR PORTUGAL	Cheapest£384	Average£574	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Brussels Airlines	Cheapest£391	Average£660	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
British Airways	Cheapest£403	Average£645	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£411	Average£769	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to Chicago?

When you search for this flight from United Kingdom to Chicago, 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 Chicago?

Cheapflights simply makes it quick and affordable to book flights from United Kingdom to Chicago by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from United Kingdom to Chicago with no change fees?

Need flexible booking options for your flight to Chicago 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 Chicago become cheaper?

Yes, Cheapflights offers price alerts on United Kingdom to Chicago 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 from £280

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to Chicago

Cheapest flights from United Kingdom to ChicagoExplore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from United Kingdom to ChicagoDiscover carefully curated flight deals from United Kingdom to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from United Kingdom to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from United Kingdom to ChicagoExplore direct flight options from United Kingdom to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Explore direct flight options from United Kingdom to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from United Kingdom to ChicagoDiscover last-minute flight deals from United Kingdom to Chicago. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to Chicago. Data last updated 10 September 2026 and is based on user searches.

One-way flights from United Kingdom to ChicagoSearch for one-way flight options from United Kingdom to Chicago. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from United Kingdom to Chicago. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from United Kingdom to Chicago

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Best time to book a flight from United Kingdom to Chicago

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

Cheapflights Insights

What is the cheapest month to book a flight from United Kingdom to Chicago?

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

Find hourly flight availability from United Kingdom to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 September 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Chicago as you normally would.

Weekly flight availability from United Kingdom to Chicago

The most flights from GB0 to CHI are scheduled on a Wednesday (49 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (42 on average).

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

About 10% of weekly flights between United Kingdom and Chicago have experienced delays in the past year, with the average delay time being 181 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 Tuesday 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 6% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Chicago?

The best time to book flights from United Kingdom to Chicago is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Chicago

Related info for your journey

How long is the flight from United Kingdom to Chicago?

What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

What are the most popular routes from United Kingdom to Chicago?

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What are the cheapest flights from United Kingdom to Chicago?

Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

How can I find direct flights from United Kingdom to Chicago?

Can I find deals for business class flights from United Kingdom to Chicago?

What is the cheapest month to book a flight from United Kingdom to Chicago?

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Alternative routes for United Kingdom to Chicago

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Other flights to Chicago

Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 September 2026.

Complete your trip

Complete your trip to Chicago by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Illinois

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United Kingdom and Chicago flights

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United Kingdom to Chicago flights

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Top 10 airlines flying from United Kingdom to Chicago

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Cheapest flights from United Kingdom to Chicago
Explore the most affordable flight options available from United Kingdom to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from United Kingdom to Chicago
Discover carefully curated flight deals from United Kingdom to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from United Kingdom to Chicago
Explore direct flight options from United Kingdom to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from United Kingdom to Chicago
Discover last-minute flight deals from United Kingdom to Chicago. Data last updated 10 September 2026 and is based on user searches.

One-way flights from United Kingdom to Chicago
Search for one-way flight options from United Kingdom to Chicago. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.