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Cheap flights from Chicago to London from $377

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to London departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 pm - 1:25 pmORD-LTN
10h 35m1 stop
Multiple Airlines Logo
1:10 pm - 7:00 pmLTN-ORD
11h 50m1 stop
$557Multiple Airlines
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Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
6:30 pm - 2:50 pmORD-LTN
14h 20m1 stop
Multiple Airlines Logo
8:00 am - 5:20 pmLTN-ORD
15h 20m1 stop
$558Multiple Airlines
Find Deal
Tue, Jan 13 - Wed, Jan 21
Multiple Airlines Logo
7:20 pm - 6:15 pmORD-LTN
16h 55m2 stops
Multiple Airlines Logo
2:35 pm - 4:45 pmLTN-ORD
32h 10m2 stops
$559Multiple Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 16
Multiple Airlines Logo
6:30 pm - 2:50 pmORD-LTN
14h 20m1 stop
Multiple Airlines Logo
8:00 am - 5:20 pmLTN-ORD
15h 20m1 stop
$560Multiple Airlines
Find Deal
Tue, Jan 27 - Wed, Feb 4
Multiple Airlines Logo
6:30 pm - 2:00 pmORD-LTN
13h 30m1 stop
Multiple Airlines Logo
7:00 am - 5:20 pmLTN-ORD
16h 20m1 stop
$561Multiple Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 20
Multiple Airlines Logo
7:10 pm - 10:00 pmORD-LTN
20h 50m2 stops
Multiple Airlines Logo
6:00 am - 4:45 pmLTN-ORD
16h 45m2 stops
$562Multiple Airlines
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Sun, Feb 15 - Sat, Feb 21
Multiple Airlines Logo
9:00 pm - 11:05 pmORD-LTN
20h 05m1 stop
Multiple Airlines Logo
6:00 am - 7:15 pmLTN-ORD
19h 15m1 stop
$563Multiple Airlines
Find Deal
Wed, Feb 11 - Mon, Feb 16
Multiple Airlines Logo
7:20 pm - 10:10 pmORD-LTN
20h 50m2 stops
Multiple Airlines Logo
8:50 pm - 4:45 pmLTN-ORD
25h 55m2 stops
$564Multiple Airlines
Find Deal
Thu, Jan 15 - Thu, Jan 22
Multiple Airlines Logo
3:45 pm - 7:50 amORD-LTN
10h 05m1 stop
Multiple Airlines Logo
6:15 am - 2:00 pmLTN-ORD
13h 45m1 stop
$565Multiple Airlines
Find Deal
Sun, May 3 - Wed, May 13
Multiple Airlines Logo
6:30 pm - 10:20 pmORD-LTN
21h 50m2 stops
Multiple Airlines Logo
6:50 am - 5:20 pmLTN-ORD
16h 30m2 stops
$566Multiple Airlines
Find Deal
Wed, Feb 18 - Tue, Feb 24

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to London Luton Airport 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, momondo users made 832,500 searches. Data last updated December 3, 2025.
Use the filters below to find and compare flights from Chicago to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 4/21

8:50 pm-1:25 pm

1 stop10h 35m

London Luton

Tue 4/28

1:10 pm-7:00 pm

1 stop11h 50m

$557

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/13

6:30 pm-2:50 pm

1 stop14h 20m

London Luton

Wed 1/21

8:00 am-5:20 pm

1 stop15h 20m

$558

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 1/12

7:20 pm-6:15 pm

2 stops16h 55m

London Luton

Fri 1/16

2:35 pm-4:45 pm

2 stops32h 10m

$559

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/27

6:30 pm-2:50 pm

1 stop14h 20m

London Luton

Wed 2/4

8:00 am-5:20 pm

1 stop15h 20m

$560

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 1/12

6:30 pm-2:00 pm

1 stop13h 30m

London Luton

Tue 1/20

7:00 am-5:20 pm

1 stop16h 20m

$561

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 2/15

7:10 pm-10:00 pm

2 stops20h 50m

London Luton

Sat 2/21

6:00 am-4:45 pm

2 stops16h 45m

$562

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 2/11

9:00 pm-11:05 pm

1 stop20h 05m

London Luton

Mon 2/16

6:00 am-7:15 pm

1 stop19h 15m

$563

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 1/15

7:20 pm-10:10 pm

2 stops20h 50m

London Luton

Thu 1/22

8:50 pm-4:45 pm

2 stops25h 55m

$564

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 5/3

3:45 pm-7:50 am

1 stop10h 05m

London Luton

Wed 5/13

6:15 am-2:00 pm

1 stop13h 45m

$565

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 2/18

6:30 pm-10:20 pm

2 stops21h 50m

London Luton

Tue 2/24

6:50 am-5:20 pm

2 stops16h 30m

$566

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from Chicago to London Luton Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to London Luton Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to London Luton Airport (CHI to LTN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to London Luton Airport

Fastest flight time

11h 55m

Direct flights

None
The fastest flight from Chicago to London Luton Airport takes 11h 55m
There are no direct flights from Chicago to London Luton Airport. There are no popular flight routes from Chicago to London Luton Airport.
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  • How far is Chicago to London Luton by plane?

    The straight-line distance from Chicago to London Luton is 3924.0 mi. A reasonable flight in good conditions will take 10h 05m.

  • When did momondo last update prices for flights from Chicago to London Luton Airport?

    Prices for flights from Chicago to London Luton Airport refresh daily.

  • How old do you have to be to fly from Chicago to London Luton Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to London Luton Airport.

  • What documentation or ID do you need to fly to London Luton Airport?

    The travel and health documents you'll need for your trip to London Luton Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Luton Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Chicago to London Luton Airport?

    Price Alerts will notify you by email when the price for flights to London Luton Airport from Chicago decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Chicago to London Luton Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Wembley
Romford
Watford
Ilford
Cobham
Folkestone
Uxbridge
Stansted
Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to London?

Finding the right flight to London from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Chicago to London with flexible booking policies on momondo?

Yes. All flights to London from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to London?

momondo provides multiple filters to help you find the best flight to London from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Chicago and alert you when they change.

An easier way to manage your London Luton Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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