This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LON
30 Nov — 7 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago to London are usually found in February or September, booked 33 days in advance, depart on a Sunday or Thursday and return on a Wednesday
Cheap flight deals from Chicago to London
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 31 October 2025.
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.
Mon 1/1219:20ORD - LHR
1 stop20h 20mScandinavian Airlines
Mon 15/1206:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Deal found 30/10£406
Mon 1/1219:20ORD - LHR
2 stops15h 05mScandinavian Airlines
Mon 26/110:20LHR - ORD
1 stop12h 25mScandinavian Airlines
Deal found 29/10£408
Sun 30/1120:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Sat 6/1216:35LGW - ORD
1 stop28h 10mTAP AIR PORTUGAL
Deal found 29/10£408
Sun 9/1118:30ORD - LHR
1 stop19h 00mIcelandair
Tue 18/1120:35LHR - ORD
1 stop26h 45mIcelandair
Deal found 30/10£409
Thu 13/1118:30ORD - LGW
1 stop10h 25mIcelandair
Thu 21/513:00LGW - ORD
1 stop11h 10mIcelandair
Deal found 30/10£409
Sun 9/1119:40ORD - LGW
1 stop13h 55mMultiple Airlines
Tue 18/1111:25LGW - ORD
1 stop12h 30mMultiple Airlines
Deal found 30/10£411
Sun 9/1119:40ORD - STN
1 stop13h 10mMultiple Airlines
Tue 18/1108:30STN - ORD
1 stop15h 25mMultiple Airlines
Deal found 30/10£411
Sun 9/1115:50ORD - LTN
1 stop11h 05mMultiple Airlines
Tue 18/1109:00LTN - ORD
1 stop14h 55mMultiple Airlines
Deal found 30/10£412
Thu 13/1118:30ORD - LHR
1 stop19h 00mIcelandair
Thu 21/513:05LHR - ORD
1 stop11h 05mIcelandair
Deal found 30/10£412
Wed 26/1118:30ORD - LGW
1 stop10h 25mIcelandair
Wed 3/1211:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 29/10£412
Sun 9/1120:40ORD - LHR
Nonstop7h 45mFinnair
Tue 18/1114:10LHR - ORD
Nonstop8h 50mFinnair
Deal found 30/10£413
Mon 10/1106:40ORD - LGW
1 stop17h 20mMultiple Airlines
Fri 14/1114:00LGW - ORD
1 stop15h 06mMultiple Airlines
Deal found 30/10£413
Best flights from Chicago to London
Discover carefully curated flight deals from Chicago to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2025.
Mon 23/207:30ORD - LHR
2 stops19h 50mScandinavian Airlines
Fri 27/207:05LHR - ORD
2 stops15h 40mScandinavian Airlines
Deal found 30/10£406
Sat 31/118:30ORD - LGW
1 stop10h 25mIcelandair
Mon 2/311:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 28/10£410
Mon 17/1115:50ORD - LTN
1 stop10h 45mMultiple Airlines
Sun 23/1108:05LTN - ORD
1 stop11h 55mMultiple Airlines
Deal found 28/10£417
Wed 19/1115:50ORD - LHR
1 stop13h 35mDelta
Wed 26/1106:30LHR - ORD
1 stop13h 50mDelta
Deal found 30/10£442
Mon 1/1210:47MDW - LHR
1 stop13h 38mVirgin Atlantic
Tue 9/1211:30LHR - MDW
2 stops18h 17mVirgin Atlantic
Deal found 31/10£449
Wed 14/121:45ORD - LHR
Nonstop7h 50mBritish Airways
Tue 27/111:00LHR - ORD
Nonstop8h 50mBritish Airways
Deal found 29/10£450
Wed 25/321:20ORD - STN
1 stop19h 55mTurkish Airlines
Tue 31/317:45STN - ORD
1 stop21h 55mTurkish Airlines
Deal found 29/10£452
Sun 18/113:15ORD - LHR
1 stop13h 20mFinnair
Fri 30/115:45LHR - ORD
Nonstop9h 00mFinnair
Deal found 29/10£453
Tue 18/1113:47MDW - LHR
1 stop11h 18mKLM
Tue 2/1211:05LHR - MDW
1 stop13h 13mKLM
Deal found 29/10£455
Sun 18/115:45ORD - LHR
Nonstop8h 10mUnited Airlines
Tue 27/106:35LHR - ORD
1 stop13h 35mUnited Airlines
Deal found 29/10£464
Wed 28/119:10ORD - LGW
1 stop13h 55mTAP AIR PORTUGAL
Fri 6/221:25LGW - ORD
2 stops47h 20mTAP AIR PORTUGAL
Deal found 28/10£483
Sat 31/118:30ORD - LGW
1 stop10h 25mIcelandair
Sun 1/311:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 28/10£410
Mon 9/313:30ORD - LHR
2 stops14h 50mScandinavian Airlines
Sat 14/315:35LHR - ORD
2 stops31h 10mScandinavian Airlines
Deal found 30/10£414
Tue 18/1121:50ORD - STN
2 stops17h 30mMultiple Airlines
Thu 27/1106:30STN - ORD
2 stops17h 55mMultiple Airlines
Deal found 27/10£417
Tue 18/1114:35ORD - LHR
1 stop12h 10mDelta
Tue 25/1106:20LHR - ORD
2 stops16h 32mDelta
Deal found 29/10£449
Thu 29/118:30ORD - LGW
1 stop10h 25mIcelandair
Sun 1/311:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 28/10£410
Wed 18/312:50ORD - STN
1 stop22h 30mTurkish Airlines
Wed 25/310:50STN - ORD
1 stop29h 15mTurkish Airlines
Deal found 29/10£452
Thu 27/1119:20ORD - STN
2 stops22h 15mMultiple Airlines
Thu 4/1211:30STN - ORD
2 stops35h 15mMultiple Airlines
Deal found 28/10£417
Tue 28/407:30ORD - LHR
2 stops20h 05mScandinavian Airlines
Wed 13/506:40LHR - ORD
1 stop15h 30mScandinavian Airlines
Deal found 30/10£433
Tue 13/110:24ORD - LCY
2 stops15h 46mVirgin Atlantic
Tue 20/117:50LCY - ORD
1 stop26h 30mVirgin Atlantic
Deal found 30/10£491
Tue 25/1108:50ORD - LHR
1 stop16h 15mDelta
Thu 4/1206:20LHR - ORD
2 stops16h 02mDelta
Deal found 30/10£449
Sun 9/1115:55ORD - STN
2 stops11h 55mMultiple Airlines
Tue 18/1121:45STN - ORD
2 stops26h 03mMultiple Airlines
Deal found 30/10£417
Wed 25/320:10ORD - LGW
1 stop13h 55mTAP AIR PORTUGAL
Wed 6/521:15LGW - ORD
2 stops48h 45mTAP AIR PORTUGAL
Deal found 27/10£517
Fri 28/1116:25ORD - LCY
1 stop9h 45mKLM
Fri 5/1208:40LCY - ORD
1 stop11h 40mKLM
Deal found 30/10£519
Tue 28/407:30ORD - LHR
2 stops20h 05mScandinavian Airlines
Mon 4/506:40LHR - ORD
1 stop15h 30mScandinavian Airlines
Deal found 29/10£433
Thu 27/1106:00MDW - LHR
1 stop19h 50mVirgin Atlantic
Thu 4/1215:50LHR - MDW
1 stop13h 57mVirgin Atlantic
Deal found 29/10£493
Wed 10/1212:50MDW - LHR
1 stop11h 35mDelta
Thu 18/1211:05LHR - MDW
1 stop13h 13mDelta
Deal found 29/10£455
Thu 26/210:40ORD - STN
2 stops18h 20mMultiple Airlines
Mon 2/307:35STN - ORD
1 stop15h 10mMultiple Airlines
Deal found 29/10£422
Wed 7/119:10ORD - LGW
1 stop13h 55mTAP AIR PORTUGAL
Wed 13/521:15LGW - ORD
2 stops48h 45mTAP AIR PORTUGAL
Deal found 28/10£517
Mon 2/319:20ORD - LHR
1 stop16h 20mScandinavian Airlines
Thu 5/310:20LHR - ORD
1 stop12h 25mScandinavian Airlines
Deal found 30/10£442
Direct flights from Chicago to London
Explore direct flight options from Chicago to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 October 2025.
Wed 18/221:45ORD - LHR
Nonstop7h 50mFinnair
Tue 24/211:00LHR - ORD
Nonstop8h 50mFinnair
Deal found 29/10£436
Mon 1/1220:40ORD - LHR
Nonstop7h 45mIberia
Tue 9/1215:45LHR - ORD
Nonstop9h 00mIberia
Deal found 31/10£438
Wed 12/1118:30ORD - LHR
Nonstop7h 45mIberia
Wed 19/1114:10LHR - ORD
Nonstop8h 50mIberia
Deal found 30/10£439
Mon 10/1120:40ORD - LHR
Nonstop7h 45mBritish Airways
Wed 19/1115:45LHR - ORD
Nonstop9h 00mBritish Airways
Deal found 29/10£439
Mon 24/1121:45ORD - LHR
Nonstop7h 50mBritish Airways
Wed 3/1211:00LHR - ORD
Nonstop8h 50mBritish Airways
Deal found 28/10£443
Tue 18/1121:45ORD - LHR
Nonstop7h 50mBritish Airways
Thu 4/1211:00LHR - ORD
Nonstop8h 50mBritish Airways
Deal found 29/10£444
Sun 11/120:45ORD - LHR
Nonstop7h 40mBritish Airways
Thu 5/214:10LHR - ORD
Nonstop8h 50mBritish Airways
Deal found 30/10£445
Sun 11/118:25ORD - LHR
Nonstop7h 50mIberia
Wed 4/214:10LHR - ORD
Nonstop8h 50mIberia
Deal found 29/10£445
Wed 14/121:45ORD - LHR
Nonstop7h 50mBritish Airways
Wed 21/115:45LHR - ORD
Nonstop9h 00mBritish Airways
Deal found 30/10£449
Tue 13/121:45ORD - LHR
Nonstop7h 50mBritish Airways
Tue 27/115:45LHR - ORD
Nonstop9h 00mBritish Airways
Deal found 29/10£450
Tue 9/1217:10ORD - LHR
Nonstop7h 45mBritish Airways
Tue 23/1212:35LHR - ORD
Nonstop8h 50mBritish Airways
Deal found 29/10£458
Sun 11/118:25ORD - LHR
Nonstop7h 50mFinnair
Tue 20/114:10LHR - ORD
Nonstop8h 50mFinnair
Deal found 30/10£462
Last-minute flights from Chicago to London
Discover last-minute flight deals from Chicago to London. Data last updated 31 October 2025 and is based on user searches.
Tue 4/1121:50ORD - LGW
2 stops17h 15mMultiple Airlines
Mon 10/1121:30LGW - ORD
2 stops21h 40mMultiple Airlines
Deal found 29/10£417
Wed 5/1121:50ORD - STN
2 stops19h 00mMultiple Airlines
Mon 17/1121:45STN - ORD
2 stops21h 25mMultiple Airlines
Deal found 29/10£414
Wed 5/1121:50ORD - STN
2 stops17h 15mMultiple Airlines
Wed 12/1106:30STN - ORD
2 stops17h 55mMultiple Airlines
Deal found 29/10£417
Wed 5/1121:50ORD - LTN
2 stops19h 15mMultiple Airlines
Wed 12/1106:50LTN - ORD
2 stops17h 35mMultiple Airlines
Deal found 29/10£417
Sun 9/1118:30ORD - LHR
1 stop19h 00mIcelandair
Tue 18/1120:35LHR - ORD
1 stop26h 45mIcelandair
Deal found 30/10£409
Sun 9/1119:40ORD - LGW
1 stop13h 55mMultiple Airlines
Tue 18/1111:25LGW - ORD
1 stop12h 30mMultiple Airlines
Deal found 30/10£411
Sun 9/1119:40ORD - STN
1 stop13h 10mMultiple Airlines
Tue 18/1108:30STN - ORD
1 stop15h 25mMultiple Airlines
Deal found 30/10£411
Sun 9/1115:50ORD - LTN
1 stop11h 05mMultiple Airlines
Tue 18/1109:00LTN - ORD
1 stop14h 55mMultiple Airlines
Deal found 30/10£412
Sun 9/1120:40ORD - LHR
Nonstop7h 45mFinnair
Tue 18/1114:10LHR - ORD
Nonstop8h 50mFinnair
Deal found 30/10£413
Sun 9/1118:30ORD - LHR
1 stop19h 00mIcelandair
Thu 13/1120:35LHR - ORD
1 stop26h 45mIcelandair
Deal found 29/10£417
Thu 13/1118:30ORD - LHR
1 stop19h 00mIcelandair
Thu 21/513:05LHR - ORD
1 stop11h 05mIcelandair
Deal found 30/10£412
Tue 18/1118:30ORD - LHR
1 stop10h 20mIcelandair
Tue 2/1220:35LHR - ORD
1 stop26h 45mIcelandair
Deal found 30/10£416
One-way flights from Chicago to London
Search for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Data last updated 31 October 2025.
Mon 17/1106:40ORD - LTN
2 stops43h 50mMultiple Airlines
Deal found 29/10£176
Thu 5/206:00MDW - LGW
2 stops22h 00mMultiple Airlines
Deal found 29/10£176
Wed 3/1208:36ORD - LTN
3 stops46h 24mMultiple Airlines
Deal found 29/10£177
Tue 9/1216:22ORD - LGW
2 stops31h 38mMultiple Airlines
Deal found 29/10£178
Mon 12/110:18MDW - LGW
1 stop17h 42mMultiple Airlines
Deal found 29/10£179
Tue 2/1210:59ORD - LHR
2 stops14h 51mMultiple Airlines
Deal found 28/10£180
Sun 16/1118:26MDW - LGW
1 stop29h 34mMultiple Airlines
Deal found 29/10£180
Mon 24/1110:59ORD - LGW
2 stops17h 56mMultiple Airlines
Deal found 28/10£181
Mon 17/1111:24ORD - LGW
2 stops36h 36mMultiple Airlines
Deal found 29/10£181
Sun 7/1206:15MDW - LGW
2 stops41h 45mMultiple Airlines
Deal found 30/10£183
Thu 13/1106:40ORD - LGW
2 stops22h 15mMultiple Airlines
Deal found 28/10£183
Thu 13/1106:40ORD - LHR
2 stops22h 10mMultiple Airlines
Deal found 29/10£184
Cheapflights Fare Finder
Customise your flight search to find flights from Chicago 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 858,174 searches. Data last updated 31 October 2025.
Use the filters below to find and compare flights from Chicago to London that are best for you.
Fly from
Chicago
Fly to
London
Route
Depart
Return
Price
ChicagoLondon
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Mon 23/2
07:30-09:20
2 stops19h 50m
London Heathrow
Fri 27/2
07:05-16:45
2 stops15h 40m
£406
ChicagoLondon
ORD - LGW
ORDLGW
Chicago O'Hare Intl
Sat 31/1
18:30-10:55
1 stop10h 25m
London Gatwick
Mon 2/3
11:55-17:20
1 stop11h 25m
£410
ChicagoLondon
ORD - LGW
ORDLGW
Chicago O'Hare Intl
Sat 31/1
18:30-10:55
1 stop10h 25m
London Gatwick
Sun 1/3
11:55-17:20
1 stop11h 25m
£410
ChicagoLondon
ORD - LGW
ORDLGW
Chicago O'Hare Intl
Thu 29/1
18:30-10:55
1 stop10h 25m
London Gatwick
Sun 1/3
11:55-17:20
1 stop11h 25m
£410
ChicagoLondon
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Mon 9/3
13:30-09:20
2 stops14h 50m
London Heathrow
Sat 14/3
15:35-17:45
2 stops31h 10m
£414
ChicagoLondon
ORD - LTN
ORDLTN
Chicago O'Hare Intl
Mon 17/11
15:50-08:35
1 stop10h 45m
London Luton
Sun 23/11
08:05-14:00
1 stop11h 55m
£417
ChicagoLondon
ORD - STN
ORDSTN
Chicago O'Hare Intl
Tue 18/11
21:50-21:20
2 stops17h 30m
London Stansted
Thu 27/11
06:30-18:25
2 stops17h 55m
£417
ChicagoLondon
ORD - STN
ORDSTN
Chicago O'Hare Intl
Thu 27/11
19:20-23:35
2 stops22h 15m
London Stansted
Thu 4/12
11:30-16:45
2 stops35h 15m
£417
ChicagoLondon
ORD - STN
ORDSTN
Chicago O'Hare Intl
Sun 9/11
15:55-09:50
2 stops11h 55m
London Stansted
Tue 18/11
21:45-17:48
2 stops26h 03m
£417
ChicagoLondon
ORD - STN
ORDSTN
Chicago O'Hare Intl
Thu 26/2
10:40-11:00
2 stops18h 20m
London Stansted
Mon 2/3
07:35-16:45
1 stop15h 10m
£422
Flights are sorted by cheapest return flights first.
Deals found on 29/10
Showing 1-10 of 60 results
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2
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Best time to book a flight from Chicago to London
Have a flexible travel schedule? Discover the best time to fly to London from Chicago with our price prediction graph.
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 to London
How far ahead should I book a flight from Chicago to London?
Use this chart to determine the optimal time to book a return flight from Chicago to London. Price data was last updated on 24 October 2025.
The best time to book flights from Chicago to London is 33 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.
What is the cheapest month to book a flight from Chicago to London?
Currently, May is the cheapest month in which you can book a flight from Chicago to London (average of £301). Flying from Chicago to London in July is currently the most expensive (average of £464). 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 CHI to LON?
Find hourly flight availability from Chicago 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 31 October 2025.
Unlike at midday, when flights are generally more expensive, you can save up to 35% on flights from Chicago to London by exploring options for tickets in the afternoon.
What’s the top stopover airport for flights from Chicago to London?
Share of one-stop return flights from Chicago to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 39% of one-stop itineraries from Chicago to London on Cheapflights.
What’s the cheapest stopover airport for flights from Chicago to London?
Average return fare for one-stop flights from Chicago to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £340.
What’s the fastest stopover option from Chicago to London?
Shortest average travel time for one-stop one-way flights from Chicago to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 9h 50m.
Which airport typically offers the quickest stopover for flights from Chicago to London?
Average stopover duration for one-stop one-way flights from Chicago 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 1h 03m.
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 31 October 2025.
Read reviews from past customers who have flown with United Airlines, Icelandair, andIberia
from Chicago to London. 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.
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Related info for your journey
Find useful and relevant information for your journey from Chicago 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 to London?
Scandinavian Airlines, Icelandair, and Delta can get you from Chicago to London in just under 10h 25m. Your travel time can differ by up to 9h 25m. There are 3960 mi between Chicago and London. This flight may include one or multiple stops.
What are the cheapest airlines flying from Chicago to London round-trip?
Our cheapest airline available from Chicago to London is Lufthansa. Our recent data shows that you can find tickets from as low as £365 on this airline. Additional options worth looking into are American Airlines and Finnair, starting at £393 and £422 round-trip. These flights start at 36% lower than the current average price 3 months from now.
What are the most popular routes from Chicago to London?
The most popular route from Chicago to London is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.
What are the most reliable airlines from Chicago to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to London on time: Royal Jordanian (80%), SriLankan Airlines (74%), Gulf Air (74%).
What are the cheapest flights from Chicago to London?
On average you can expect to pay £851 for a flight from Chicago to London. The cheapest flight overall is £287 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £326.
Can I find deals for business class flights from Chicago to London?
Yes. Cheapflights offers flight deals from Chicago 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 to London?
Currently, May is the cheapest month in which you can book a flight from Chicago to London (average of £301). Flying from Chicago to London in July is currently the most expensive (average of £464). 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 31 October 2025.
Discover the top 7 airlines that operate flights from Chicago 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 858,174 searches. Data last updated 31 October 2025.
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 Chicago to London?
Cheapflights makes it easy to find Chicago to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Chicago to London?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Chicago.
Can Cheapflights find flights from Chicago to London with no change fees?
Yes! Cheapflights helps users easily find flights from Chicago to London with no change fees.
Can Cheapflights notify me if prices for flights from Chicago to London become cheaper?
Yes! Start tracking prices for Chicago to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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