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Cheap flights from Chicago O'Hare Intl Airport to London from $250

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 O'Hare Intl Airport to London departing on 11/28. 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 O'Hare Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 pm - 12:55 pmORD-LTN
12h 25m1 stop
Multiple Airlines Logo
8:00 am - 5:20 pmLTN-ORD
15h 20m1 stop
$532Multiple Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Multiple Airlines Logo
3:50 pm - 10:30 pmORD-LTN
24h 40m2 stops
Multiple Airlines Logo
6:50 am - 5:55 pmLTN-ORD
17h 05m2 stops
$537Multiple Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
Multiple Airlines Logo
3:50 pm - 8:35 amORD-LTN
10h 45m1 stop
Multiple Airlines Logo
6:50 am - 2:00 pmLTN-ORD
13h 10m1 stop
$542Multiple Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Multiple Airlines Logo
7:00 am - 2:00 pmORD-LTN
25h 00m3 stops
Multiple Airlines Logo
8:50 pm - 4:45 pmLTN-ORD
25h 55m2 stops
$543Multiple Airlines
Find Deal
Thu, Nov 27 - Sat, Dec 6
Multiple Airlines Logo
3:50 pm - 8:35 amORD-LTN
10h 45m1 stop
Multiple Airlines Logo
6:50 am - 2:00 pmLTN-ORD
13h 10m1 stop
$547Multiple Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3
Multiple Airlines Logo
7:40 pm - 4:00 pmORD-LTN
14h 20m1 stop
Multiple Airlines Logo
9:00 am - 2:00 pmLTN-ORD
11h 00m1 stop
$549Multiple Airlines
Find Deal
Thu, Nov 6 - Tue, Nov 11
Multiple Airlines Logo
6:30 pm - 6:15 pmORD-LTN
17h 45m2 stops
Multiple Airlines Logo
6:00 am - 5:20 pmLTN-ORD
17h 20m2 stops
$550Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
3:50 pm - 9:45 amORD-LTN
11h 55m1 stop
Multiple Airlines Logo
8:05 am - 2:00 pmLTN-ORD
11h 55m1 stop
$551Multiple Airlines
Find Deal
Tue, Dec 9 - Sun, Dec 14
Multiple Airlines Logo
6:50 pm - 5:20 pmORD-LTN
16h 30m2 stops
Multiple Airlines Logo
8:25 am - 6:25 pmLTN-ORD
16h 00m2 stops
$552Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
9:50 pm - 11:05 pmORD-LTN
19h 15m2 stops
Multiple Airlines Logo
1:50 pm - 4:20 pmLTN-ORD
32h 30m2 stops
$554Multiple Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 October 16, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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

Wed 12/3

6:30 pm-12:55 pm

1 stop12h 25m

London Luton

Mon 12/8

8:00 am-5:20 pm

1 stop15h 20m

$532

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 12/10

3:50 pm-10:30 pm

2 stops24h 40m

London Luton

Tue 12/16

6:50 am-5:55 pm

2 stops17h 05m

$537

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/12

3:50 pm-8:35 am

1 stop10h 45m

London Luton

Wed 11/19

6:50 am-2:00 pm

1 stop13h 10m

$542

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 11/27

7:00 am-2:00 pm

3 stops25h 00m

London Luton

Sat 12/6

8:50 pm-4:45 pm

2 stops25h 55m

$543

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 11/24

3:50 pm-8:35 am

1 stop10h 45m

London Luton

Wed 12/3

6:50 am-2:00 pm

1 stop13h 10m

$547

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 11/6

7:40 pm-4:00 pm

1 stop14h 20m

London Luton

Tue 11/11

9:00 am-2:00 pm

1 stop11h 00m

$549

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sat 12/6

6:30 pm-6:15 pm

2 stops17h 45m

London Luton

Sat 12/13

6:00 am-5:20 pm

2 stops17h 20m

$550

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 12/9

3:50 pm-9:45 am

1 stop11h 55m

London Luton

Sun 12/14

8:05 am-2:00 pm

1 stop11h 55m

$551

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 11/11

6:50 pm-5:20 pm

2 stops16h 30m

London Luton

Tue 11/18

8:25 am-6:25 pm

2 stops16h 00m

$552

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/5

9:50 pm-11:05 pm

2 stops19h 15m

London Luton

Mon 11/10

1:50 pm-4:20 pm

2 stops32h 30m

$554

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Chicago O'Hare Intl Airport to London Luton Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to London Luton Airport (ORD to LTN) flight deals and tips

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

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to London Luton Airport. There are no popular flight routes from Chicago O'Hare Intl Airport to London Luton Airport.
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  • How far is Chicago O'Hare Intl to London Luton by plane?

    Chicago O'Hare Intl and London Luton are 3929.6 mi apart from one another. In terms of flight time, this usually takes a little over 10h 45m.

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

    Prices for flights from Chicago O'Hare Intl Airport to London Luton Airport are updated daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 O'Hare Intl Airport to London Luton Airport?

    Confirm your travel details to search for the latest offers for flights from Chicago O'Hare Intl Airport to London Luton Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

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

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near London?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Chicago with this policy.

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

Once you have performed a search for Chicago to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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