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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CHI
22 Jan — 29 Jan1
Return
1 adult
Economy
The best prices from London to Chicago are usually found in February or November, booked 64 days in advance, depart on a Wednesday or Monday and return on a Saturday
Cheap flight deals from London to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Chicago (CHI). 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 17 January 2025.
Explore the most affordable flight options available from London to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.
Wed 29/108:55LHR - ORD
1 stop13h 20mSWISS
Tue 18/219:05ORD - LHR
1 stop11h 55mSWISS
Deal found 16/1£440
Wed 22/111:00LHR - ORD
Nonstop8h 55mBritish Airways
Wed 29/117:00ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 15/1£441
Tue 11/213:35LHR - ORD
Nonstop9h 25mLufthansa
Mon 24/221:10ORD - LHR
Nonstop8h 05mLufthansa
Deal found 16/1£442
Thu 22/513:00LGW - ORD
1 stop11h 15mIcelandair
Thu 12/622:15ORD - LGW
1 stop31h 30mIcelandair
Deal found 15/1£443
Mon 3/212:00LGW - ORD
1 stop30h 29mMultiple Airlines
Mon 10/212:25ORD - LGW
1 stop15h 35mMultiple Airlines
Deal found 14/1£443
Tue 18/216:35LGW - ORD
1 stop28h 55mTAP AIR PORTUGAL
Sun 23/220:25ORD - LGW
2 stops18h 15mTAP AIR PORTUGAL
Deal found 15/1£444
Tue 4/209:15LCY - ORD
1 stop13h 00mSWISS
Tue 25/219:05ORD - LCY
1 stop17h 35mSWISS
Deal found 15/1£444
Mon 17/218:45LGW - ORD
1 stop27h 30mSWISS
Mon 17/317:55ORD - LGW
2 stops18h 55mSWISS
Deal found 14/1£445
Fri 7/212:15LHR - ORD
1 stop11h 05mIcelandair
Tue 11/218:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 15/1£445
Wed 29/113:35LHR - ORD
Nonstop9h 25mUnited Airlines
Tue 11/221:10ORD - LHR
Nonstop8h 05mUnited Airlines
Deal found 14/1£446
Mon 10/212:20LHR - MDW
1 stop11h 51mKLM
Mon 10/314:55MDW - LHR
1 stop10h 55mKLM
Deal found 16/1£446
Tue 4/211:20LGW - ORD
2 stops18h 49mAmerican Airlines
Tue 11/207:04ORD - LGW
2 stops18h 26mAmerican Airlines
Deal found 15/1£447
Best flights from London to Chicago
Discover carefully curated flight deals from London to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.
Wed 29/108:55LHR - ORD
1 stop13h 20mSWISS
Tue 18/219:05ORD - LHR
1 stop11h 55mSWISS
Deal found 16/1£440
Wed 22/111:00LHR - ORD
Nonstop8h 55mBritish Airways
Wed 29/117:00ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 15/1£441
Tue 11/213:35LHR - ORD
Nonstop9h 25mLufthansa
Mon 24/221:10ORD - LHR
Nonstop8h 05mLufthansa
Deal found 16/1£442
Sun 9/221:05LGW - ORD
3 stops26h 15mMultiple Airlines
Mon 17/218:30ORD - LGW
3 stops34h 15mMultiple Airlines
Deal found 15/1£443
Tue 18/216:35LGW - ORD
1 stop28h 55mTAP AIR PORTUGAL
Sun 23/220:25ORD - LGW
2 stops18h 15mTAP AIR PORTUGAL
Deal found 15/1£444
Fri 7/212:15LHR - ORD
1 stop11h 05mIcelandair
Tue 11/218:30ORD - LHR
1 stop19h 00mIcelandair
Deal found 15/1£445
Wed 29/106:30LHR - ORD
1 stop14h 00mDelta
Thu 13/206:45ORD - LHR
1 stop18h 05mDelta
Deal found 14/1£446
Wed 26/314:30LHR - MDW
1 stop12h 57mKLM
Tue 1/419:09MDW - LHR
1 stop11h 06mKLM
Deal found 15/1£446
Tue 4/211:20LGW - ORD
2 stops18h 49mAmerican Airlines
Tue 11/207:04ORD - LGW
2 stops18h 26mAmerican Airlines
Deal found 15/1£447
Mon 27/112:20LHR - MDW
1 stop11h 54mVirgin Atlantic
Mon 10/214:08MDW - LHR
1 stop10h 42mVirgin Atlantic
Deal found 15/1£447
Mon 27/110:25LHR - ORD
Nonstop9h 25mUnited Airlines
Mon 10/221:10ORD - LHR
Nonstop8h 05mUnited Airlines
Deal found 16/1£448
Wed 22/108:55LHR - ORD
2 stops15h 55mAir Canada
Wed 29/113:55ORD - LHR
2 stops15h 55mAir Canada
Deal found 15/1£455
Direct flights from London to Chicago
Explore direct flight options from London to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 January 2025.
Wed 22/111:00LHR - ORD
Nonstop8h 55mBritish Airways
Wed 29/117:00ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 15/1£441
Wed 22/111:55LHR - ORD
Nonstop8h 50mAmerican Airlines
Wed 29/122:00ORD - LHR
Nonstop7h 40mAmerican Airlines
Deal found 15/1£442
Wed 29/113:35LHR - ORD
Nonstop9h 25mUnited Airlines
Wed 12/217:50ORD - LHR
Nonstop8h 05mUnited Airlines
Deal found 14/1£446
Thu 27/313:35LHR - ORD
Nonstop9h 25mAustrian Airlines
Wed 2/416:05ORD - LHR
Nonstop8h 15mAustrian Airlines
Deal found 15/1£453
Sun 9/213:35LHR - ORD
Nonstop9h 25mBrussels Airlines
Mon 17/221:10ORD - LHR
Nonstop8h 05mBrussels Airlines
Deal found 15/1£454
Wed 19/213:35LHR - ORD
Nonstop9h 25mLufthansa
Fri 28/221:10ORD - LHR
Nonstop8h 05mLufthansa
Deal found 16/1£455
Mon 27/110:25LHR - ORD
Nonstop9h 25mMultiple Airlines
Mon 10/221:10ORD - LHR
Nonstop8h 05mMultiple Airlines
Deal found 15/1£459
Sat 1/211:00LHR - ORD
Nonstop8h 55mFinnair
Mon 3/217:00ORD - LHR
Nonstop7h 50mFinnair
Deal found 15/1£468
Wed 22/111:55LHR - ORD
Nonstop8h 50mIberia
Fri 16/517:30ORD - LHR
Nonstop7h 50mIberia
Deal found 14/1£490
Last-minute flights from London to Chicago
Discover last-minute flight deals from London to Chicago. Data last updated 17 January 2025 and is based on user searches.
Wed 22/111:00LHR - ORD
Nonstop8h 55mBritish Airways
Wed 29/117:00ORD - LHR
Nonstop7h 50mBritish Airways
Deal found 15/1£441
Wed 22/111:55LHR - ORD
Nonstop8h 50mAmerican Airlines
Wed 29/122:00ORD - LHR
Nonstop7h 40mAmerican Airlines
Deal found 15/1£442
Wed 22/106:30LHR - ORD
1 stop14h 00mDelta
Wed 14/514:10ORD - LHR
1 stop14h 05mDelta
Deal found 15/1£446
Wed 22/108:55LHR - ORD
2 stops15h 55mAir Canada
Wed 29/111:35ORD - LHR
1 stop13h 35mAir Canada
Deal found 15/1£449
Wed 22/114:10LHR - ORD
Nonstop8h 50mFinnair
Thu 15/521:30ORD - LHR
1 stop17h 10mFinnair
Deal found 14/1£458
Wed 22/108:50LHR - ORD
1 stop16h 25mAer Lingus
Mon 28/420:50ORD - LHR
1 stop10h 35mAer Lingus
Deal found 16/1£463
Thu 23/106:50LHR - ORD
1 stop11h 25mMultiple Airlines
Wed 5/212:51ORD - LHR
1 stop12h 04mMultiple Airlines
Deal found 15/1£457
Fri 24/121:05LHR - ORD
2 stops26h 45mScandinavian Airlines
Fri 31/119:40ORD - LHR
2 stops14h 45mScandinavian Airlines
Deal found 15/1£452
Fri 24/106:50LHR - ORD
1 stop11h 25mUnited Airlines
Mon 27/121:10ORD - LHR
Nonstop8h 05mUnited Airlines
Deal found 16/1£454
Fri 24/107:40LHR - ORD
1 stop12h 30mLufthansa
Fri 31/117:50ORD - LHR
Nonstop8h 05mLufthansa
Deal found 15/1£471
Fri 24/118:40LHR - ORD
1 stop29h 10mScandinavian Airlines
Mon 27/119:40ORD - LHR
1 stop16h 50mScandinavian Airlines
Deal found 16/1£446
Mon 27/106:30LHR - MDW
2 stops17h 44mDelta
Tue 11/214:08MDW - LHR
1 stop10h 42mDelta
Deal found 15/1£450
One-way flights from London to Chicago
Search for one-way flight options from London to Chicago. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.
Tue 18/320:50LHR - ORD
2 stops40h 32mMultiple Airlines
Deal found 16/1£355
Fri 7/220:40LHR - MDW
3 stops43h 22mMultiple Airlines
Deal found 16/1£355
Wed 29/107:55LGW - ORD
2 stops31h 39mMultiple Airlines
Deal found 15/1£356
Wed 12/214:50LHR - ORD
1 stop31h 06mWestJet
Deal found 14/1£356
Mon 27/116:25LTN - ORD
2 stops53h 05mMultiple Airlines
Deal found 16/1£356
Fri 31/122:05STN - ORD
2 stops47h 25mMultiple Airlines
Deal found 15/1£356
Wed 22/111:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 16/1£362
Mon 17/314:00LGW - MDW
2 stops30h 53mMultiple Airlines
Deal found 15/1£363
Wed 22/112:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 15/1£366
Fri 21/207:45LCY - ORD
3 stops32h 52mMultiple Airlines
Deal found 16/1£367
Tue 4/219:50SEN - ORD
2 stops31h 37mMultiple Airlines
Deal found 15/1£392
Wed 12/209:50LHR - ORD
1 stop15h 25mAer Lingus
Deal found 14/1£394
Find flights from London to Chicago within your budget
Customise your flight search to find flights from London to Chicago 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 17 January 2025.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 29/1
08:55-16:15
1 stop13h 20m
Chicago O'Hare Intl
Tue 18/2
19:05-13:00
1 stop11h 55m
£440
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 22/1
11:00-13:55
Nonstop8h 55m
Chicago O'Hare Intl
Wed 29/1
17:00-06:50
Nonstop7h 50m
£441
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Tue 11/2
08:55-18:43
2 stops15h 48m
Chicago O'Hare Intl
Mon 24/2
11:35-08:30
2 stops14h 55m
£442
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Sun 9/2
21:05-17:20
3 stops26h 15m
Chicago O'Hare Intl
Mon 17/2
18:30-10:45
3 stops34h 15m
£443
LondonChicago
LCY - ORD
LCYORD
London City
Wed 29/1
09:25-16:15
1 stop12h 50m
Chicago O'Hare Intl
Mon 17/2
19:05-12:50
1 stop11h 45m
£443
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Tue 18/2
16:35-15:30
1 stop28h 55m
Chicago O'Hare Intl
Sun 23/2
20:25-20:40
2 stops18h 15m
£444
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Tue 18/2
10:25-13:50
Nonstop9h 25m
Chicago O'Hare Intl
Mon 17/3
18:50-07:55
Nonstop8h 05m
£444
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Fri 7/2
12:15-17:20
1 stop11h 05m
Chicago O'Hare Intl
Tue 11/2
18:30-19:30
1 stop19h 00m
£445
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Mon 17/2
18:45-16:15
1 stop27h 30m
Chicago O'Hare Intl
Mon 17/3
17:55-17:50
2 stops18h 55m
£445
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 29/1
13:35-17:00
Nonstop9h 25m
Chicago O'Hare Intl
Tue 11/2
21:10-11:15
Nonstop8h 05m
£446
Flights are sorted by cheapest return flights first.
Deals found on 16/1
Showing 1-10 of 60 results
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Best time to book a flight from London to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from London 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.
Travel insights for flights from London to Chicago
Get recent, data-driven insights about flights from London to Chicago including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from London to Chicago?
Use this chart to determine the optimal time to book a return flight from London to Chicago. Price data was last updated on 10 January 2025.
To ensure you get the cheapest price possible for a flight from London to Chicago, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London to Chicago?
Currently, January is the cheapest month in which you can book a flight from London to Chicago (average of £595). Flying from London to Chicago in July is currently the most expensive (average of £843). 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 LON to CHI?
Find hourly flight availability from London 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 17 January 2025.
It’s typically best to fly out from London to Chicago in the evening. Doing so could potentially save you 10% on the flight price compared to flying at midday, which is usually more expensive.
What is the cheapest day to fly from London to Chicago?
Use this chart to determine the cheapest time to fly return from London to Chicago. Price data was last updated on 28 April 2024.
Travellers seeking maximum savings on their London to Chicago flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from London to Chicago
Explore weekly flight availability from London to Chicago. 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 17 January 2025.
The most flights from LON to CHI are scheduled on a Wednesday (36 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).
Rainfall in Chicago by month
Plan your trip to Chicago by taking into account the average rainfall totals by month.
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.
Temperature in Chicago by month
Plan your trip to Chicago by taking into account the average temperature totals by month.
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).
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 17 January 2025.
Peruse reviews from past customers who have flown with American Airlines, SWISS and British Airways from London to Chicago to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Related info for your journey
Find useful and relevant information for your journey from London to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What are the cheapest airlines flying from London to Chicago round-trip?
Our cheapest airline available from London to Chicago is SWISS. Our recent data shows that you can find tickets from as low as £440 on this airline. Additional options worth looking into are British Airways and Lufthansa, starting at £441 and £442 round-trip. These flights start at 23% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from London to Chicago one-way?
To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £356. Icelandair flights start at £362 while deals on Aer Lingus start at £394 one-way.
What are the most popular routes from London to Chicago?
The most popular flight routes from London to Chicago are London Heathrow - Chicago O'Hare Intl, London City - Chicago O'Hare Intl and London Gatwick - Chicago O'Hare Intl.
What are the most reliable airlines from London to Chicago?
Before booking your flight to Chicago from London, check out the most reliable airlines to get you to your destination on time: Air Canada (93%), Austrian Airlines (93%), United Airlines( 93%).
What are the cheapest flights from London to Chicago?
While on average a flight from London to Chicago is generally £1,366, our data shows the cheapest flight currently is £458. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £354 for that flight.
Where are the most common stopover locations when flying from London to Chicago?
London to Chicago flights have a stopover in Reykjavik most of the time. Dublin sees the second most layovers for non-direct flights flying from London to Chicago.
What are some popular things to do or see while on a stopover in Reykjavik?
If you're on a stopover in Reykjavik and looking for things to do, consider visiting National Cathedral, Hallgrímskirkja, or Harpa. National Cathedral, Hallgrímskirkja, and Harpa are located about 23.0 mi, 23.2 mi, and 23.3 mi, respectively from Reykjavik Keflavik Intl. Those on a stopover in Reykjavik in need of a car hire can book one at Reykjavik Keflavik Intl for about £40.
What are some popular points of interest to see during a stopover in Dublin?
The majority of Dublin visitors spend their time at Bord Gáis Energy Theatre, Olympia Theatre, and Royal Dublin Society. Bord Gáis Energy Theatre, Olympia Theatre and Royal Dublin Society are located about 5.7 mi, 5.7 mi, and 6.9 mi, respectively from Dublin if you are interested in checking them out. Travellers in need of a car in Dublin can hire one for about £16 per day.
Where are the least popular stopover locations for London to Chicago flights?
London to Chicago flights have a stopover in Copenhagen least often.
Can I find deals for flights from London to Chicago that include hotel bookings?
Yes. In addition to deals on London to Chicago flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Chicago.
Can I find deals for business class flights from London to Chicago?
Yes. Cheapflights offers flight deals from London 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 London to Chicago?
Currently, January is the cheapest month in which you can book a flight from London to Chicago (average of £595). Flying from London to Chicago in July is currently the most expensive (average of £843). 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.
Browse thousands of different options on Cheapflights for your next trip
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Fly from London to Chicago on these airlines
Choose from the following airlines for your flight from London to Chicago. Flights are based on user searches made on Cheapflights and were last updated on 17 January 2025.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 January 2025.
Discover the top 10 airlines that operate flights from London to Chicago. 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 17 January 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 London to Chicago?
Cheapflights helps you search for flights from London to Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from London to Chicago?
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 Chicago from London.
Can Cheapflights find flights from London to Chicago with no change fees?
Need flexible booking options for your flight to Chicago from London? 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 London to Chicago become cheaper?
Not ready to book yet? You can track prices for flights from London to Chicago on Cheapflights with our Price Alert feature and get notified when better prices are available.
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