Cheap flights from London to Chicago from £393

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CHI
9 Jun — 16 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Chicago are usually found in February or November, booked 35 days in advance, depart on a Thursday or Wednesday and return on a Sunday

Cheap flight deals from London to Chicago

Enter your travel dates to find the best prices.

Cheapest flights from London to Chicago
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 10 May 2026.

Thu 22/1014:50
LGW
-
ORD
1 stop31h 10m
TAP AIR PORTUGAL
Sun 1/1120:10
ORD
-
LGW
2 stops18h 25m
TAP AIR PORTUGAL
Deal found 7/5£503
Wed 16/913:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Fri 9/1022:25
ORD
-
LHR
1 stop15h 55m
Icelandair
Deal found 7/5£504
Fri 2/1008:00
LHR
-
ORD
1 stop14h 00m
TAP AIR PORTUGAL
Sun 4/1018:00
ORD
-
LHR
1 stop12h 45m
TAP AIR PORTUGAL
Deal found 7/5£505
Tue 1/913:00
LGW
-
ORD
1 stop14h 25m
Icelandair
Tue 8/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Deal found 6/5£506
Thu 24/919:50
LHR
-
ORD
1 stop26h 10m
TAP AIR PORTUGAL
Sun 27/918:00
ORD
-
LHR
1 stop18h 50m
TAP AIR PORTUGAL
Deal found 8/5£506
Sat 12/908:00
LHR
-
ORD
Nonstop9h 10m
United Airlines
Sat 12/920:40
ORD
-
LHR
1 stop29h 55m
United Airlines
Deal found 8/5£507
Sat 21/1110:25
LHR
-
ORD
Nonstop9h 20m
United Airlines
Sat 21/1118:30
ORD
-
LHR
1 stop30h 00m
United Airlines
Deal found 9/5£508
Fri 9/1015:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Tue 13/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 8/5£509
Tue 29/913:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Tue 6/1019:25
ORD
-
LHR
1 stop10h 30m
Icelandair
Deal found 10/5£509
Wed 20/507:00
STN
-
ORD
2 stops20h 25m
Multiple Airlines
Tue 26/522:25
ORD
-
STN
2 stops19h 45m
Multiple Airlines
Deal found 7/5£509
Wed 7/1015:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Mon 12/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 9/5£510
Tue 22/913:05
LHR
-
ORD
1 stop11h 10m
Icelandair
Tue 29/919:25
ORD
-
LHR
1 stop18h 55m
Icelandair
Deal found 6/5£510

Find 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 10 May 2026.

Round-trip from

£503

One-way from

£393

Popular in

July

Cheapest in

February

Average price

£567

Good round-trip deal

£667 or less

Good one-way deal

£533 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 22/10-1/11
  • 3 total stops
  • 49h 35m total
  • London to Chicago
1/6
  • 1/6
  • 1 total stop
  • 15h 13m total
  • London to Chicago
Highest demand for flights based on searches. 11% potential increase in price (£48 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from London (LON) to Chicago (CHI).
Price to beat on a one-way flight from London (LON) to Chicago (CHI).

Cheapflights Fare Finder

 
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 10 May 2026.
Use the filters below to find and compare flights from London to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChicago

SEN - ORD

SENORD

London Southend

Thu 4/6

10:10-19:55

2 stops15h 45m

Chicago O'Hare Intl

Sun 7/6

08:45-10:30

2 stops19h 45m

£593

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 9/9

07:30-17:50

1 stop16h 20m

Chicago O'Hare Intl

Wed 23/9

21:00-10:50

Nonstop7h 50m

£594

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 9/9

06:50-12:00

1 stop11h 10m

Chicago O'Hare Intl

Wed 23/9

16:25-06:45

Nonstop8h 20m

£595

LondonChicago

LTN - ORD

LTNORD

London Luton

Tue 2/6

19:55-12:55

2 stops23h 00m

Chicago O'Hare Intl

Tue 16/6

22:30-23:45

2 stops19h 15m

£609
Fastest return journey

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 9/9

13:10-15:55

Nonstop8h 45m

Chicago O'Hare Intl

Wed 23/9

21:00-10:50

Nonstop7h 50m

£616

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 4/11

10:25-13:45

Nonstop9h 20m

Chicago O'Hare Intl

Thu 12/11

15:45-05:55

Nonstop8h 10m

£616

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Wed 2/9

08:40-18:05

2 stops15h 25m

Chicago Midway

Tue 8/9

10:35-06:25

1 stop13h 50m

£625

LondonChicago

LTN - ORD

LTNORD

London Luton

Sun 31/5

18:15-15:10

2 stops26h 55m

Chicago O'Hare Intl

Mon 8/6

16:50-18:05

2 stops19h 15m

£626

LondonChicago

SEN - ORD

SENORD

London Southend

Sun 31/5

11:00-16:10

2 stops35h 10m

Chicago O'Hare Intl

Wed 3/6

06:07-21:25

3 stops33h 18m

£628

LondonChicago

LHR - MDW

LHRMDW

London Heathrow

Tue 1/9

13:25-21:46

1 stop14h 21m

Chicago Midway

Tue 8/9

18:45-13:05

1 stop12h 20m

£634

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

Cheapflights Insights

Everything you need to know about your flight from London to Chicago

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

To ensure you get the cheapest price possible for a flight from London to Chicago, you should look to book at least 34 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, September is the cheapest month in which you can book a flight from London to Chicago (average of £411). Flying from London to Chicago in January is currently the most expensive (average of £1,201). 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 10 May 2026.

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

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 10 May 2026.

The most flights from LON to CHI are scheduled on a Monday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (52 on average).

How much does it cost for a return flight from London to Chicago?

What’s the top stopover airport for flights from London to Chicago?

Share of one-stop return flights from London to Chicago chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 54% of one-stop itineraries from London to Chicago on Cheapflights.

What’s the cheapest stopover airport for flights from London to Chicago?

Average return fare for one-stop flights from London to Chicago, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Frankfurt am Main (FRA) is the most affordable one-stop option, with an average return flight price of £369.

What’s the fastest stopover option from London to Chicago?

Shortest average travel time for one-stop one-way flights from London to Chicago, 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: 10h 50m.

Which airport typically offers the quickest stopover for flights from London to Chicago?

Average stopover duration for one-stop one-way flights from London to Chicago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 16m.

How often are flights from London to Chicago delayed?

About 11% of weekly flights between London and Chicago have experienced delays in the past year, with the average delay time being 180 minutes.

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

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

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

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

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

Over the past year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.

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 10 May 2026.
Read reviews from past customers who have flown with Austrian Airlines,United Airlines, andIcelandair from London 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.

Boarding

7.6

Crew

8.1

Food

6.8

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Boarding

7.6

Crew

8.1

Food

6.8

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Boarding

7.6

Crew

8.1

Food

6.8

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Boarding

7.6

Crew

8.1

Food

6.8

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Boarding

7.6

Crew

8.1

Food

6.8

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Boarding

7.6

Crew

8.1

Food

6.8

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

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.
  • How long is the flight from London to Chicago?

    A quick flight from London to Chicago can take about 8h 45m. Finnair provides one of the quickest options available for as low as £616. Airlines will cover 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 London to Chicago round-trip?

    Our cheapest airline available from London to Chicago is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £340 on this airline. Additional options worth looking into are Icelandair and Aer Lingus, starting at £344 and £358 round-trip. These flights start at 35% 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 JetBlue, which is currently one of the cheapest options available, starting at £306. Icelandair flights start at £320 while deals on Aer Lingus start at £343 one-way.

  • What are the most popular routes from London to Chicago?

  • 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: United Airlines (86%), Air Canada (86%), Brussels Airlines( 86%).

  • What are the cheapest flights from London to Chicago?

    While on average a flight from London to Chicago is generally £1,008, our data shows the cheapest flight currently is £404. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £453 for that flight.

  • Where are the most common stopover locations when flying from London to Chicago?

  • What are some popular things to do or see while on a stopover in Dublin?

    If you're on a stopover in Dublin and looking for things to do, consider visiting 3Olympia Theatre, Button Factory, or Bord Gáis Energy Theatre. 3Olympia Theatre, Button Factory, and Bord Gáis Energy Theatre are located about 5.7 mi, 5.7 mi, and 5.7 mi, respectively from Dublin. Those on a stopover in Dublin in need of a car hire can book one at Dublin for about £19.

  • What are some popular points of interest to see during a stopover in Reykjavik?

    The majority of Reykjavik visitors spend their time at Harpa, National Cathedral, and Reykjavik Free Church. Harpa, National Cathedral and Reykjavik Free Church are located about 23.3 mi, 23.0 mi, and 22.9 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Travellers in need of a car in Reykjavik can hire one for about £37 per day.

  • Where are the least popular stopover locations for London to Chicago flights?

  • 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, September is the cheapest month in which you can book a flight from London to Chicago (average of £411). Flying from London to Chicago in January is currently the most expensive (average of £1,201). 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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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 10 May 2026.

Top 10 airlines flying from London to Chicago

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 10 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£340Average£572FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£344Average£496FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£358Average£629FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£364Average£512FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£380Average£506FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£388Average£599FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£388Average£568FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£390Average£599FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£398Average£630FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
United AirlinesCheapest£406Average£598FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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