Cheap flights from Chicago O'Hare Intl Airport to London from £240

ORD — LON
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to London are usually found in January or February, booked 60 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from O'Hare Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to London

Sun 29/1118:30 -
1 stop14h 40m
Thu 3/1210:10 -
1 stop13h 10m
Deal found 25/10£531
Wed 18/1115:55 -
1 stop11h 10m
Sun 29/1107:50 -
1 stop12h 20m
Deal found 26/10£532
Wed 9/1219:00 -
2 stops22h 45m
Tue 15/1219:35 -
2 stops25h 55m
Deal found 26/10£532
Wed 9/1218:30 -
1 stop16h 55m
Wed 16/1208:25 -
1 stop14h 55m
Deal found 25/10£534
Wed 9/1218:30 -
2 stops17h 20m
Tue 15/1207:15 -
2 stops16h 05m
Deal found 26/10£534
Wed 11/1119:00 -
3 stops22h 10m
Sat 21/1120:50 -
2 stops24h 40m
Deal found 27/10£535
Wed 2/1218:30 -
2 stops18h 25m
Wed 9/1208:50 -
2 stops14h 30m
Deal found 29/10£536
Wed 2/1218:30 -
2 stops22h 50m
Tue 8/1207:15 -
2 stops16h 05m
Deal found 27/10£536
Sun 29/1118:30 -
1 stop19h 00m
Tue 8/1212:15 -
1 stop11h 05m
Deal found 28/10£537
Sun 29/1118:30 -
1 stop14h 40m
Tue 8/1208:00 -
1 stop15h 20m
Deal found 25/10£537
Fri 27/1120:10 -
1 stop21h 45m
Fri 4/1218:00 -
2 stops51h 30m
Deal found 27/10£537
Tue 1/1218:30 -
2 stops17h 50m
Tue 8/1208:50 -
2 stops14h 30m
Deal found 29/10£537

Find flight deals from O'Hare Intl to London

Round-trip from

£531

One-way from

£240

Popular in

June

Cheapest in

January

Average price

£681

Good round-trip deal

£708 or less

Good one-way deal

£276 or less
29/11-3/12
  • 29/11-3/12
  • 2 total stops
  • 27h 50m total
  • Chicago to London
British Airways
  • British Airways
  • 26/1-31/12
  • Nonstop
  • 7h 45m total
  • Chicago to London
Highest demand for flights based on searches. 24% potential increase in price (£166 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
Average for round-trip flights in October 2026
Price to beat on a round-trip flight from Chicago O'Hare Intl to London (LON).
Price to beat on a one-way flight from Chicago O'Hare Intl to London (LON).

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Tue 27/4

19:25-09:35

Nonstop8h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£247

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Sun 14/2

20:10-21:25

3 stops43h 15m

London Stansted

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Mon 15/2

12:51-10:25

2 stops15h 34m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£250

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 15/3

10:30-09:00

2 stops17h 30m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£254

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Sun 8/11

20:10-20:35

2 stops18h 25m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£254

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Sat 13/2

18:30-07:45

2 stops31h 15m

London Stansted

Wed 31/12

00:00-17:00

Nonstop0h 00m

£271

ChicagoLondon

ORD Chicago O'Hare Intl - LHR London Heathrow

ORDLHR

Chicago O'Hare Intl

Fri 23/4

19:25-09:35

Nonstop8h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£285

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Thu 1/4

17:10-16:00

1 stop16h 50m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£288

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Mon 15/2

21:50-22:45

3 stops18h 55m

London Stansted

Wed 31/12

00:00-17:00

Nonstop0h 00m

£298

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Wed 17/3

19:25-15:45

1 stop15h 20m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£311

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to London

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

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to London

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of £465). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of £1,034). 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 ORD to LON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to London as you normally would.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to London?

Airfare is typical for this route at the moment.
Chicago O'Hare Intl Airport to London flights typically cost between £480 and £795 in November.
The cheapest return price found within the last 5 days was £531 on Multiple Airlines (29 Nov–3 Dec).

What’s the top stopover airport for flights from Chicago O'Hare Intl Airport to London?

Dublin (DUB) – chosen by Cheapflights users on 51% of one-stop itineraries from Chicago O'Hare Intl Airport to London on Cheapflights.

What’s the cheapest stopover airport for flights from Chicago O'Hare Intl Airport to London?

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £573.

What’s the fastest stopover option from Chicago O'Hare Intl Airport to London?

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 21m.

Which airport typically offers the quickest stopover for flights from Chicago O'Hare Intl Airport to London?

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 0h 56m.

How often are flights from Chicago to London delayed?

About 23% of weekly flights between Chicago and London have experienced delays in the past year, with the average delay time being 161 minutes.

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

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

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

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

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

Over the past year, American Airlines have had the lowest number of delays on this route, with just 22% of flights being delayed.

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

The price you pay for your flight from Chicago O'Hare Intl Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 28 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

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

Overall

7.6

Crew

8.2

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ronald,Sept 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.

Overall

7.6

Crew

8.2

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ronald,Sept 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.

Overall

7.6

Crew

8.2

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ronald,Sept 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.

Overall

7.6

Crew

8.2

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ronald,Sept 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.

Overall

7.6

Crew

8.2

Boarding

7.6

Comfort

7.4

Entertainment

6.9

Food

6.7

Reviews

1 / 20
8.0
Excellent

Ronald,Sept 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.

Related info for your journey

  • How long is the flight from Chicago O'Hare Intl Airport to London?

    For as low as £657, Scandinavian Airlines can have you in London from Chicago O'Hare Intl Airport in 13h 35m. Chicago O'Hare Intl Airport and London are separated by a distance of 3960 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to London round-trip?

    According to our current data, Icelandair (£367), British Airways (£456), and Aer Lingus (£462) offers the cheapest pricing from Chicago O'Hare Intl Airport to London. Users have found that Icelandair is 45% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Iberia, with whom users have recently found tickets for as low as £288. However, be on the lookout for offers from Lufthansa and British Airways, as they are both options that can get you from Chicago O'Hare Intl Airport to London for a low price.

  • What are the most popular routes from Chicago O'Hare Intl Airport to London?

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to London?

    No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to London consider choosing Royal Jordanian (85%), Air Canada (80%) or Austrian Airlines (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to London?

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to London? While on average our users pay £661, our data indicates the cheapest price to be £231. The most popular route (Chicago O'Hare Intl - London Heathrow), is priced around £437.

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

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

  • How can I find direct flights from O'Hare Intl to London?

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

  • Can I find deals for business class flights from O'Hare Intl to London?

    Yes. Cheapflights offers flight deals from O'Hare Intl to London 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 Chicago O'Hare Intl Airport to London?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London (average of £465). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of £1,034). 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

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Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from O'Hare Intl to London

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£367Average£566FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£456Average£740FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£462Average£812FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest£492Average£858FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest£511Average£919FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£522Average£708FlexibilityNo cancel feeOn-time77%
Search Iberia flights
JetBlueCheapest£745Average£888FlexibilityNo cancel feeOn-time62%
Search JetBlue flights

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When you search for this flight from O'Hare Intl to London, 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 O'Hare Intl to London?

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

Need flexible booking options for your flight to London from O'Hare Intl? 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 O'Hare Intl to London become cheaper?

Not ready to book yet? You can track prices for flights from O'Hare Intl to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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