Cheap flights from Chicago O'Hare Intl Airport to London from £223
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LON
4 Oct — 11 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to London are usually found in February or January, booked 34 days in advance, depart on a Monday or Wednesday and return on a Wednesday
Cheap flight deals from O'Hare Intl to London
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Cheapest flights from O'Hare Intl to London
Explore the most affordable flight options available from O'Hare Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.
Wed 14/1019:15 -
1 stop14h 45m
Thu 22/1006:40 -
1 stop15h 30m
Deal found 31/8£522
Mon 5/1019:15 -
1 stop14h 45m
Wed 21/1021:05 -
2 stops25h 05m
Deal found 30/8£523
Tue 29/919:25 -
1 stop13h 15m
Wed 7/1015:40 -
1 stop11h 45m
Deal found 1/9£523
Thu 8/1019:25 -
2 stops21h 30m
Tue 13/1007:05 -
2 stops17h 10m
Deal found 31/8£523
Tue 29/919:25 -
1 stop18h 55m
Tue 2/212:15 -
1 stop11h 05m
Deal found 3/9£523
Sun 4/1022:25 -
2 stops17h 30m
Tue 13/1007:10 -
2 stops17h 05m
Deal found 1/9£523
Tue 3/1118:30 -
1 stop14h 35m
Thu 12/1106:00 -
1 stop17h 20m
Deal found 30/8£524
Fri 16/1019:25 -
1 stop10h 30m
Wed 21/1021:25 -
1 stop26h 50m
Deal found 1/9£524
Sun 29/1119:15 -
2 stops15h 40m
Sun 6/1212:20 -
2 stops34h 25m
Deal found 30/8£524
Sun 18/1019:15 -
2 stops18h 40m
Sun 25/1013:40 -
2 stops33h 05m
Deal found 3/9£524
Sun 15/1118:30 -
1 stop14h 35m
Sun 22/1106:00 -
1 stop17h 20m
Deal found 30/8£525
Wed 30/922:25 -
1 stop15h 55m
Tue 6/1021:25 -
1 stop26h 50m
Deal found 31/8£525
Best flights from O'Hare Intl to London
Discover carefully curated flight deals from O'Hare Intl to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.
Sat 10/1019:15 -
2 stops15h 45m
Sat 17/1006:40 -
2 stops15h 30m
Deal found 31/8£528
Mon 28/908:45 -
2 stops20h 35m
Tue 6/1006:30 -
2 stops19h 42m
Deal found 31/8£539
Mon 26/1019:30 -
1 stop10h 25m
Fri 6/1111:55 -
1 stop11h 25m
Deal found 3/9£545
Wed 13/117:45 -
Nonstop8h 10m
Fri 15/106:50 -
1 stop11h 20m
Deal found 2/9£546
Wed 4/1119:00 -
1 stop14h 05m
Tue 10/1121:20 -
2 stops24h 10m
Deal found 30/8£586
Mon 28/920:10 -
1 stop38h 40m
Tue 6/1017:35 -
1 stop22h 05m
Deal found 31/8£615
Wed 4/1112:00 -
2 stops15h 30m
Tue 10/1117:50 -
1 stop26h 35m
Deal found 30/8£671
Wed 16/1213:35 -
1 stop11h 40m
Wed 30/1208:40 -
1 stop11h 45m
Deal found 31/8£680
Fri 2/1020:50 -
Nonstop8h 00m
Tue 6/1010:20 -
1 stop13h 30m
Deal found 30/8£684
Thu 10/1216:25 -
1 stop10h 25m
Wed 16/1207:45 -
1 stop12h 40m
Deal found 3/9£755
Wed 20/116:10 -
1 stop14h 40m
Mon 25/119:05 -
2 stops23h 05m
Deal found 3/9£837
Sun 25/1019:30 -
1 stop13h 10m
Fri 6/1111:55 -
1 stop11h 25m
Deal found 3/9£545
Wed 28/1019:30 -
2 stops15h 45m
Tue 10/1107:45 -
2 stops15h 35m
Deal found 1/9£551
Fri 1/119:15 -
2 stops32h 20m
Sat 9/117:00 -
1 stop29h 45m
Deal found 31/8£585
Fri 11/1220:10 -
1 stop13h 35m
Thu 17/1216:00 -
1 stop29h 30m
Deal found 2/9£608
Wed 25/1111:45 -
1 stop16h 10m
Fri 4/1217:20 -
1 stop22h 40m
Deal found 1/9£640
Sun 4/1015:45 -
2 stops20h 20m
Tue 13/1005:40 -
2 stops19h 35m
Deal found 3/9£592
Sun 24/121:50 -
Nonstop8h 10m
Wed 3/207:40 -
Nonstop9h 05m
Deal found 31/8£660
Sun 25/1017:25 -
1 stop9h 45m
Wed 4/1109:20 -
2 stops17h 10m
Deal found 3/9£674
Mon 2/1119:15 -
2 stops17h 35m
Sun 22/1121:05 -
2 stops25h 40m
Deal found 4/9£631
Wed 28/1021:15 -
1 stop20h 20m
Tue 3/1106:30 -
1 stop18h 50m
Deal found 3/9£646
Mon 16/1118:30 -
2 stops17h 30m
Fri 20/1108:20 -
2 stops15h 00m
Deal found 30/8£594
Thu 22/1018:00 -
1 stop33h 45m
Thu 5/1116:00 -
1 stop29h 30m
Deal found 3/9£674
Thu 10/1217:45 -
Nonstop8h 10m
Wed 16/1210:25 -
Nonstop9h 20m
Deal found 2/9£691
Wed 21/1010:30 -
2 stops17h 05m
Wed 28/1007:05 -
2 stops15h 40m
Deal found 3/9£632
Mon 16/1114:44 -
2 stops19h 01m
Mon 7/1210:00 -
2 stops17h 36m
Deal found 2/9£701
Sat 24/1011:25 -
1 stop23h 55m
Wed 28/1010:55 -
1 stop37h 25m
Deal found 3/9£648
Mon 14/916:50 -
1 stop10h 00m
Thu 24/908:25 -
1 stop11h 50m
Deal found 3/9£799
Tue 22/916:15 -
1 stop10h 35m
Thu 1/1008:25 -
1 stop11h 50m
Deal found 31/8£799
Mon 12/1019:15 -
2 stops21h 35m
Mon 19/1012:25 -
3 stops33h 45m
Deal found 31/8£602
Direct flights from O'Hare Intl to London
Explore direct flight options from O'Hare Intl to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 4 September 2026.
Thu 8/1019:05 -
Nonstop8h 00m
Thu 3/1211:00 -
Nonstop8h 45m
Deal found 30/8£529
Mon 2/1117:10 -
Nonstop7h 45m
Wed 18/1111:00 -
Nonstop8h 45m
Deal found 3/9£534
Wed 4/1117:10 -
Nonstop7h 45m
Thu 19/1115:40 -
Nonstop9h 05m
Deal found 3/9£544
Mon 2/1117:10 -
Nonstop7h 45m
Sun 15/1111:00 -
Nonstop8h 45m
Deal found 3/9£551
Thu 5/1117:10 -
Nonstop7h 45m
Fri 20/1111:00 -
Nonstop8h 45m
Deal found 3/9£552
Tue 3/1117:10 -
Nonstop7h 45m
Wed 18/1111:00 -
Nonstop8h 45m
Deal found 3/9£557
Tue 3/1117:10 -
Nonstop7h 45m
Sun 15/1111:00 -
Nonstop8h 45m
Deal found 3/9£557
Thu 5/1117:10 -
Nonstop7h 45m
Sat 14/1111:00 -
Nonstop8h 45m
Deal found 3/9£558
Tue 3/1121:50 -
Nonstop7h 45m
Tue 17/1115:40 -
Nonstop9h 05m
Deal found 3/9£560
Sun 1/1117:10 -
Nonstop7h 45m
Fri 20/1111:00 -
Nonstop8h 45m
Deal found 3/9£561
Mon 2/1121:50 -
Nonstop7h 45m
Mon 16/1111:00 -
Nonstop8h 45m
Deal found 3/9£563
Sat 31/1022:50 -
Nonstop7h 45m
Fri 20/1111:00 -
Nonstop8h 45m
Deal found 3/9£568
Last-minute flights from O'Hare Intl to London
Discover last-minute flight deals from O'Hare Intl to London. Data last updated 4 September 2026 and is based on user searches.
Mon 21/919:25 -
2 stops17h 25m
Tue 2/307:55 -
2 stops15h 25m
Deal found 3/9£525
Tue 29/919:25 -
1 stop13h 15m
Wed 7/1015:40 -
1 stop11h 45m
Deal found 1/9£523
Tue 29/919:25 -
1 stop18h 55m
Tue 2/212:15 -
1 stop11h 05m
Deal found 3/9£523
Wed 30/922:25 -
1 stop15h 55m
Tue 6/1021:25 -
1 stop26h 50m
Deal found 31/8£525
Sun 4/1022:25 -
2 stops17h 30m
Tue 13/1007:10 -
2 stops17h 05m
Deal found 1/9£523
Mon 5/1019:15 -
1 stop14h 45m
Wed 21/1021:05 -
2 stops25h 05m
Deal found 30/8£523
Thu 8/1019:25 -
2 stops21h 30m
Tue 13/1007:05 -
2 stops17h 10m
Deal found 31/8£523
Mon 12/1019:15 -
1 stop17h 15m
Mon 19/1006:40 -
1 stop15h 30m
Deal found 31/8£526
Wed 14/1019:15 -
1 stop14h 45m
Thu 22/1006:40 -
1 stop15h 30m
Deal found 31/8£522
Fri 16/1019:25 -
1 stop10h 30m
Wed 21/1021:25 -
1 stop26h 50m
Deal found 1/9£524
Sun 18/1019:15 -
2 stops18h 40m
Sun 25/1013:40 -
2 stops33h 05m
Deal found 3/9£524
Sat 31/1019:30 -
1 stop12h 35m
Wed 4/1108:00 -
1 stop15h 20m
Deal found 3/9£526
One-way flights from O'Hare Intl to London
Search for one-way flight options from O'Hare Intl to London. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.
Fri 2/1019:28 -
2 stops56h 32m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 31/8£223
Fri 6/1118:30 -
2 stops31h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/8£223
Thu 3/1208:08 -
1 stop18h 57m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/8£224
Wed 9/1218:30 -
2 stops16h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 31/8£224
Sat 10/1019:25 -
1 stop10h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/8£224
Sun 4/1015:50 -
1 stop36h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 31/8£224
Thu 5/1118:30 -
2 stops21h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/8£224
Sun 25/1019:30 -
1 stop10h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/8£225
Sun 25/1019:30 -
1 stop13h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/8£225
Fri 30/1019:30 -
2 stops15h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 31/8£225
Wed 6/118:30 -
2 stops38h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 2/9£226
Thu 1/1020:55 -
3 stops55h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 2/9£226
Find flight deals from O'Hare Intl to London
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 September 2026.
Customise your flight search to find flights from O'Hare Intl to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 4 September 2026.
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
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Fri 4/12
18:30-18:40
2 stops18h 10m
London Stansted
Wed 31/12
00:00-17:00
Nonstop0h 00m
£223
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Fri 6/11
18:30-07:35
3 stops31h 05m
London Luton
Wed 31/12
00:00-17:00
Nonstop0h 00m
£232
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Thu 26/11
18:30-10:20
2 stops33h 50m
London Stansted
Wed 31/12
00:00-17:00
Nonstop0h 00m
£237
ChicagoLondon
ORD Chicago O'Hare Intl - STN London Stansted
ORDSTN
Chicago O'Hare Intl
Thu 15/10
15:45-14:35
2 stops16h 50m
London Stansted
Wed 31/12
00:00-17:00
Nonstop0h 00m
£239
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Thu 15/10
14:15-12:25
2 stops16h 10m
London Luton
Wed 31/12
00:00-17:00
Nonstop0h 00m
£240
ChicagoLondon
ORD Chicago O'Hare Intl - LTN London Luton
ORDLTN
Chicago O'Hare Intl
Tue 13/10
14:15-15:30
2 stops19h 15m
London Luton
Wed 31/12
00:00-17:00
Nonstop0h 00m
£240
Fastest return journey
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Mon 1/3
17:45-07:55
Nonstop8h 10m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£241
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Tue 2/3
17:45-07:55
Nonstop8h 10m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£241
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Sat 5/12
18:15-20:10
2 stops19h 55m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£244
ChicagoLondon
ORD Chicago O'Hare Intl - LHR London Heathrow
ORDLHR
Chicago O'Hare Intl
Wed 28/10
13:00-06:55
1 stop12h 55m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£244
Flights are sorted by cheapest return flights first.
Deals found on 30/8
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.
ORD-LON
ORD-STN
ORD-LHR
ORD-LGW
ORD-LCY
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 Chicago O'Hare Intl Airport to London
ORD-LON
ORD-STN
ORD-LHR
ORD-LGW
ORD-LCY
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 £480). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of £1,020). 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?
Find hourly flight availability from O'Hare Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 September 2026.
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.
Weekly flight availability from Chicago O'Hare Intl Airport to London
Explore weekly flight availability from O'Hare Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 4 September 2026.
The most flights from ORD to LON are scheduled on a Wednesday (54 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 on average).
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 £494 and £708 in October.The cheapest return price found within the last 5 days was £522 on Scandinavian Airlines (14 Oct–22 Oct).
What’s the top stopover airport for flights from Chicago O'Hare Intl Airport to London?
Share of one-stop return flights from Chicago O'Hare Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Dublin (DUB) – chosen by Cheapflights users on 59% 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?
Average return fare for one-stop flights from Chicago O'Hare Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £365.
What’s the fastest stopover option from Chicago O'Hare Intl Airport to London?
Shortest average travel time for one-stop one-way flights from Chicago O'Hare Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
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?
Average stopover duration for one-stop one-way flights from Chicago O'Hare Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
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 24% of weekly flights between Chicago and London have experienced delays in the past year, with the average delay time being 166 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?
Saturday 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, British Airways have had the lowest number of delays on this route, with just 24% 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 77 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 insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 4 September 2026.
Get a feel of what it's like to fly with United Airlines,Iberia, andBritish Airways 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.
I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Chicago O'Hare Intl Airport to London?
For as low as £546, Scandinavian Airlines can have you in London from Chicago O'Hare Intl Airport in 8h 10m. Chicago O'Hare Intl Airport and London are separated by a distance of 3939 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 (£362), American Airlines (£383), and British Airways (£420) offers the cheapest pricing from Chicago O'Hare Intl Airport to London. Users have found that Icelandair is 42% 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 Lufthansa, with whom users have recently found tickets for as low as £278. However, be on the lookout for offers from British Airways and Iberia, 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?
The most popular flight routes from Chicago O'Hare Intl Airport to London are Chicago O'Hare Intl - London Heathrow, Chicago O'Hare Intl - London Gatwick and Chicago O'Hare Intl - London City.
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 (68%), Air Canada (64%) or Austrian Airlines (64%) 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 £1,343, our data indicates the cheapest price to be £228. The most popular route (Chicago O'Hare Intl - London Heathrow), is priced around £445.
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 £480). Flying from Chicago O'Hare Intl Airport to London in June is currently the most expensive (average of £1,020). 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.
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.
Browse through other flights departing from O'Hare Intl. Flights are based on user searches made on Cheapflights and were last updated on 4 September 2026.
Discover the top 7 airlines that operate flights from O'Hare Intl to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 4 September 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from O'Hare Intl to London?
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?
Cheapflights helps you find that perfect flight to London from O'Hare Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from O'Hare Intl to London with no change fees?
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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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