Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to London from $374

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 2/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
7:20 pm - 10:10 pm
ORD
-
LTN
20h 50m2 stops
Multiple Airlines Logo
8:50 pm - 4:45 pm
LTN
-
ORD
25h 55m2 stops
$556Multiple Airlines
Thu, Feb 26 - Wed, Mar 4
Multiple Airlines Logo
7:15 am - 5:20 pm
ORD
-
LTN
28h 05m3 stops
Multiple Airlines Logo
8:25 am - 6:25 pm
LTN
-
ORD
16h 00m2 stops
$565Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
7:30 pm - 12:55 pm
ORD
-
LTN
12h 25m1 stop
Multiple Airlines Logo
8:00 am - 6:20 pm
LTN
-
ORD
15h 20m1 stop
$571Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
7:15 am - 5:20 pm
ORD
-
LTN
28h 05m3 stops
Multiple Airlines Logo
8:25 am - 6:25 pm
LTN
-
ORD
16h 00m2 stops
$574Multiple Airlines
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
10:29 am - 1:55 pm
ORD
-
LTN
21h 26m3 stops
Multiple Airlines Logo
6:55 pm - 4:55 pm
LTN
-
ORD
28h 00m2 stops
$575Multiple Airlines
Thu, Jan 22 - Wed, Jan 28
Multiple Airlines Logo
7:20 pm - 6:15 pm
ORD
-
LTN
16h 55m2 stops
Multiple Airlines Logo
2:35 pm - 4:45 pm
LTN
-
ORD
32h 10m2 stops
$577Multiple Airlines
Sat, Feb 14 - Sun, Feb 22
Multiple Airlines Logo
6:30 pm - 12:55 pm
ORD
-
LTN
12h 25m1 stop
Multiple Airlines Logo
7:00 am - 5:20 pm
LTN
-
ORD
16h 20m1 stop
$580Multiple Airlines
Wed, Jan 21 - Tue, Jan 27
Multiple Airlines Logo
6:30 pm - 2:50 pm
ORD
-
LTN
14h 20m1 stop
Multiple Airlines Logo
8:00 am - 5:20 pm
LTN
-
ORD
15h 20m1 stop
$582Multiple Airlines
Tue, Jan 20 - Wed, Jan 28
Multiple Airlines Logo
9:55 pm - 6:00 pm
ORD
-
LTN
14h 05m1 stop
Multiple Airlines Logo
8:30 am - 8:00 pm
LTN
-
ORD
17h 30m1 stop
$583Multiple Airlines
Tue, Jan 13 - Fri, Jan 30
Multiple Airlines Logo
9:55 pm - 6:00 pm
ORD
-
LTN
14h 05m1 stop
Multiple Airlines Logo
8:30 am - 8:00 pm
LTN
-
ORD
17h 30m1 stop
$584Multiple Airlines
Tue, Jan 13 - Thu, Jan 22

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 December 8, 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

Thu 2/26

7:20 pm-10:10 pm

2 stops20h 50m

London Luton

Wed 3/4

8:50 pm-4:45 pm

2 stops25h 55m

$556

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/20

7:15 am-5:20 pm

3 stops28h 05m

London Luton

Tue 1/27

8:25 am-6:25 pm

2 stops16h 00m

$565

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 3/11

7:30 pm-12:55 pm

1 stop12h 25m

London Luton

Wed 3/18

8:00 am-6:20 pm

1 stop15h 20m

$571

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/20

7:15 am-5:20 pm

3 stops28h 05m

London Luton

Tue 1/27

8:25 am-6:25 pm

2 stops16h 00m

$574

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 1/22

10:29 am-1:55 pm

3 stops21h 26m

London Luton

Wed 1/28

6:55 pm-4:55 pm

2 stops28h 00m

$575

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sat 2/14

7:20 pm-6:15 pm

2 stops16h 55m

London Luton

Sun 2/22

2:35 pm-4:45 pm

2 stops32h 10m

$577

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 1/21

6:30 pm-12:55 pm

1 stop12h 25m

London Luton

Tue 1/27

7:00 am-5:20 pm

1 stop16h 20m

$580

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/20

6:30 pm-2:50 pm

1 stop14h 20m

London Luton

Wed 1/28

8:00 am-5:20 pm

1 stop15h 20m

$582

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/13

9:55 pm-6:00 pm

1 stop14h 05m

London Luton

Fri 1/30

8:30 am-8:00 pm

1 stop17h 30m

$583

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 1/13

9:55 pm-6:00 pm

1 stop14h 05m

London Luton

Thu 1/22

8:30 am-8:00 pm

1 stop17h 30m

$584

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 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

Fastest flight time

12h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to London Luton Airport takes 12h 35m
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.
Search flight deals

  • 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 11h 15m.

  • 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
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?

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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 1/7
Wed 1/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $366
Flights to London Gatwick Airportfrom $333
Flights to London City Airportfrom $431
Flights to London Stansted Airportfrom $358
Flights to London Southend Airportfrom $390
Flights to Glasgow Intl Airportfrom $388
Flights to Belfast Intl Airportfrom $533
Flights to Belfast City Airportfrom $533