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Cheap flights from London to Chicago from £413

LON — CHI
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Chicago are usually found in February or January, booked 64 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from London to Chicago

Enter your travel dates to find the best prices.

Cheapest flights from London to Chicago

Wed 25/1107:15 -
2 stops16h 05m
Tue 1/1218:30 -
2 stops21h 20m
Deal found 7/11£517
Fri 20/1121:35 -
2 stops47h 55m
Sun 6/1220:10 -
1 stop13h 35m
Deal found 2/11£519
Thu 3/1207:05 -
2 stops15h 40m
Mon 15/219:10 -
2 stops20h 25m
Deal found 3/11£519
Wed 2/1206:20 -
2 stops17h 00m
Sat 5/1218:30 -
2 stops16h 05m
Deal found 2/11£520
Tue 24/1110:00 -
2 stops35h 30m
Sun 29/1120:10 -
2 stops18h 55m
Deal found 6/11£520
Wed 11/1106:00 -
1 stop15h 30m
Sun 22/1120:10 -
1 stop20h 30m
Deal found 2/11£520
Wed 9/1206:40 -
1 stop16h 15m
Sat 25/919:15 -
2 stops20h 20m
Deal found 2/11£523
Thu 19/1107:15 -
2 stops16h 05m
Thu 26/1118:30 -
2 stops20h 45m
Deal found 6/11£524
Wed 25/1107:00 -
2 stops16h 20m
Wed 2/1218:30 -
2 stops21h 05m
Deal found 3/11£524
Wed 25/1108:00 -
2 stops15h 20m
Mon 7/1218:30 -
2 stops16h 10m
Deal found 3/11£525
Fri 6/1106:00 -
1 stop15h 30m
Fri 27/1120:10 -
1 stop19h 25m
Deal found 3/11£525
Mon 23/1106:10 -
2 stops16h 35m
Mon 30/1119:10 -
2 stops21h 35m
Deal found 4/11£525

Find flight deals from London to Chicago

Round-trip from

£517

One-way from

£413

Popular in

August

Cheapest in

February

Average price

£591

Good round-trip deal

£681 or less

Good one-way deal

£499 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 14/1-17/1
  • 3 total stops
  • 47h 55m total
  • London to Chicago
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1/12-31/12
  • 1/12-31/12
  • 3 total stops
  • 32h 05m total
  • London to Chicago
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£57 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from London (LON) to Chicago (CHI).
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Price to beat on a one-way flight from London (LON) to Chicago (CHI).
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Cheapflights Fare Finder

 
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

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Thu 15/4

08:00-16:00

1 stop14h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£414

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Wed 17/3

21:45-17:45

3 stops25h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£420

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Tue 20/4

12:05-16:00

2 stops33h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£425

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Sat 17/4

12:05-16:00

2 stops33h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£425

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Wed 6/1

07:00-21:11

2 stops20h 11m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£430

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 12/11

21:45-17:20

3 stops25h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£430

LondonChicago

LTN London Luton - ORD Chicago O'Hare Intl

LTNORD

London Luton

Thu 10/12

06:05-17:20

1 stop17h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£439

LondonChicago

LHR London Heathrow - MDW Chicago Midway

LHRMDW

London Heathrow

Mon 25/1

06:30-18:00

2 stops17h 30m

Chicago Midway

Wed 31/12

00:00-07:00

Nonstop0h 00m

£446

LondonChicago

LGW London Gatwick - MDW Chicago Midway

LGWMDW

London Gatwick

Wed 11/11

09:50-11:25

3 stops31h 35m

Chicago Midway

Wed 31/12

00:00-07:00

Nonstop0h 00m

£447

LondonChicago

LCY London City - ORD Chicago O'Hare Intl

LCYORD

London City

Mon 11/1

09:20-14:25

1 stop11h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£448

Flights are sorted by cheapest return flights first.

Deals found on 3/11

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

Cheapflights Insights

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

What is the cheapest month to book a flight from London to Chicago?

Currently, February is the cheapest month in which you can book a flight from London to Chicago (average of £487). Flying from London to Chicago in August is currently the most expensive (average of £796). 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?

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

The most flights from LON to CHI are scheduled on a Wednesday (40 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (29 on average).

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

Airfare is below average for this route at the moment.
London to Chicago flights typically cost between £535 and £680 in January.
The cheapest return price found within the last 5 days was £517 on TAP AIR PORTUGAL (14 Jan–17 Jan).

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

Reykjavik (KEF) – chosen by Cheapflights users on 45% of one-stop itineraries from London to Chicago on Cheapflights.

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

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £370.

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

Flights via Paris (CDG) have the shortest average one-way travel time for one-stop routes: 11h 10m.

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

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 03m.

How often are flights from London to Chicago delayed?

About 8% of weekly flights between London and Chicago have experienced delays in the past year, with the average delay time being 179 minutes.

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

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

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

Monday 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.

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 63 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.

Reviews of airlines servicing Chicago

Read reviews from past customers who have flown with Finnair,Aer Lingus, 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.
Finnair
7.6
Good
1,414 reviews
Check prices

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,414 reviews
Finnair
7.6
Good
1,414 reviews
Check prices

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Aer Lingus
7.3
Good
1,880 reviews
Finnair
7.6
Good
1,414 reviews
Check prices

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Icelandair
6.9
Okay
767 reviews
Finnair
7.6
Good
1,414 reviews
Check prices

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Lufthansa
6.8
Okay
8,297 reviews
Finnair
7.6
Good
1,414 reviews
Check prices

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
8,283 reviews
Finnair
7.6
Good
1,414 reviews
Check prices

Overall

7.6

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

Related info for your journey

  • How long is the flight from London to Chicago?

    A quick flight from London to Chicago can take about 12h 25m. Scandinavian Airlines provides one of the quickest options available for as low as £574. 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 £212 on this airline. Additional options worth looking into are Icelandair and TAP AIR PORTUGAL, starting at £356 and £388 round-trip. These flights start at 66% 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 Aer Lingus, which is currently one of the cheapest options available, starting at £316. Icelandair flights start at £326 while deals on JetBlue start at £351 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 Stansted - Chicago O'Hare Intl and London Heathrow - Chicago Midway.

  • 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: Royal Jordanian (100%), SriLankan Airlines (91%), Air Canada( 89%).

  • What are the cheapest flights from London to Chicago?

    While on average a flight from London to Chicago is generally £1,680, our data shows the cheapest flight currently is £375. When looking at the most popular route, (London Heathrow - Chicago O'Hare Intl), you can expect to pay £400 for that flight.

  • 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, February is the cheapest month in which you can book a flight from London to Chicago (average of £487). Flying from London to Chicago in August is currently the most expensive (average of £796). 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

Browse thousands of different options on Cheapflights for your next trip

Fly from London to Chicago on these airlines

British Airways flights from London to Chicago
Lufthansa flights from London to Chicago
Finnair flights from London to Chicago

Top 10 airlines flying from London to Chicago

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£212Average£640FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£356Average£511FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£388Average£587FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£413Average£561FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£424Average£694FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£429Average£729FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£434Average£773FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
JetBlueCheapest£444Average£684FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Austrian AirlinesCheapest£448Average£691FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Brussels AirlinesCheapest£449Average£853FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

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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.

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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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