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Cheap flights from Chicago O'Hare Intl Airport to London from £258

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 5/4. 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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0 bags
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Find the cheapest flights from Chicago O'Hare Intl Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:30 - 17:05
ORD
-
LTN
16h 35m
2 stops
Multiple Airlines Logo
09:00 - 17:20
LTN
-
ORD
14h 20m
2 stops
£383Multiple Airlines
Wed, 25 Feb - Tue, 3 Mar
Multiple Airlines Logo
19:25 - 21:15
ORD
-
LTN
19h 50m
2 stops
Multiple Airlines Logo
06:15 - 18:15
LTN
-
ORD
18h 00m
2 stops
£385Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
19:25 - 21:15
ORD
-
LTN
19h 50m
2 stops
Multiple Airlines Logo
06:15 - 18:15
LTN
-
ORD
18h 00m
2 stops
£387Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
19:25 - 15:30
ORD
-
LTN
14h 05m
2 stops
Multiple Airlines Logo
09:40 - 18:15
LTN
-
ORD
14h 35m
2 stops
£395Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
Multiple Airlines Logo
16:50 - 08:35
ORD
-
LTN
10h 45m
1 stop
Multiple Airlines Logo
06:15 - 14:00
LTN
-
ORD
13h 45m
1 stop
£397Multiple Airlines
Mon, 23 Mar - Wed, 1 Apr
Multiple Airlines Logo
18:30 - 23:05
ORD
-
LTN
22h 35m
2 stops
Multiple Airlines Logo
06:50 - 17:20
LTN
-
ORD
16h 30m
2 stops
£398Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
19:20 - 23:05
ORD
-
LTN
21h 45m
2 stops
Multiple Airlines Logo
06:00 - 16:45
LTN
-
ORD
16h 45m
2 stops
£399Multiple Airlines
Wed, 4 Mar - Sat, 7 Mar
Multiple Airlines Logo
18:30 - 20:05
ORD
-
LTN
19h 35m
2 stops
Multiple Airlines Logo
09:00 - 17:20
LTN
-
ORD
14h 20m
2 stops
£400Multiple Airlines
Tue, 24 Feb - Thu, 5 Mar
Multiple Airlines Logo
18:30 - 16:45
ORD
-
LTN
16h 15m
2 stops
Multiple Airlines Logo
09:00 - 17:20
LTN
-
ORD
14h 20m
2 stops
£400Multiple Airlines
Sun, 8 Feb - Thu, 12 Feb
Multiple Airlines Logo
07:15 - 19:50
ORD
-
LTN
31h 35m
3 stops
Multiple Airlines Logo
08:25 - 19:25
LTN
-
ORD
16h 00m
2 stops
£402Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 28 January 2026.
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 25/2

18:30-17:05

2 stops16h 35m

London Luton

Tue 3/3

09:00-17:20

2 stops14h 20m

£383

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 15/4

19:25-21:15

2 stops19h 50m

London Luton

Wed 22/4

06:15-18:15

2 stops18h 00m

£385

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 22/4

19:25-21:15

2 stops19h 50m

London Luton

Wed 29/4

06:15-18:15

2 stops18h 00m

£387

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 21/4

19:25-15:30

2 stops14h 05m

London Luton

Tue 28/4

09:40-18:15

2 stops14h 35m

£395

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 23/3

16:50-08:35

1 stop10h 45m

London Luton

Wed 1/4

06:15-14:00

1 stop13h 45m

£397

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 25/2

18:30-23:05

2 stops22h 35m

London Luton

Wed 4/3

06:50-17:20

2 stops16h 30m

£398

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 4/3

19:20-23:05

2 stops21h 45m

London Luton

Sat 7/3

06:00-16:45

2 stops16h 45m

£399

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 24/2

18:30-20:05

2 stops19h 35m

London Luton

Thu 5/3

09:00-17:20

2 stops14h 20m

£400

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 8/2

18:30-16:45

2 stops16h 15m

London Luton

Thu 12/2

09:00-17:20

2 stops14h 20m

£400

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/3

07:15-19:50

3 stops31h 35m

London Luton

Wed 18/3

08:25-19:25

2 stops16h 00m

£402

Flights are sorted by cheapest return flights first.

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

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 return 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

Fastest flight time

13h 25m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to London Luton Airport takes 13h 25m
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?

    There are 3929.6 mi between Chicago O'Hare Intl and London Luton. In terms of flight time, this usually takes a little over 13h 25m.

  • 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 were last updated today.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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?

    Search flight deals from Chicago O'Hare Intl Airport to London Luton Airport. While viewing offers you’ll have the option to create a Price Alert.

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

    By using tools like our “Price Calendar”, you can see the best days for return flights on 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 show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Folkestone
Worthing
Colchester
Bedford
Ramsgate
Chichester

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?

Flights from Chicago to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Chicago to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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