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Cheap flights from Chicago O'Hare Intl Airport to London from $378

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 8/18. 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
1 adult, Economy, 0 bags

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
3:45 pm - 9:15 am
ORD
-
LTN
11h 30m
1 stop
Multiple Airlines Logo
1:10 pm - 7:15 pm
LTN
-
ORD
12h 05m
1 stop
$920Multiple Airlines
Mon, Oct 5 - Tue, Oct 20
Multiple Airlines Logo
8:45 am - 5:25 pm
ORD
-
LTN
26h 40m
2 stops
Multiple Airlines Logo
6:20 am - 2:55 pm
LTN
-
ORD
14h 35m
2 stops
$921Multiple Airlines
Fri, Jul 31 - Fri, Aug 7
Multiple Airlines Logo
5:35 pm - 3:45 pm
ORD
-
LTN
16h 10m
2 stops
Multiple Airlines Logo
9:00 am - 7:40 pm
LTN
-
ORD
16h 40m
2 stops
$922Multiple Airlines
Mon, Jul 13 - Sat, Jul 25
Multiple Airlines Logo
8:45 am - 11:15 pm
ORD
-
LTN
32h 30m
3 stops
Multiple Airlines Logo
6:10 pm - 8:20 pm
LTN
-
ORD
32h 10m
3 stops
$923Multiple Airlines
Mon, Aug 17 - Sun, Aug 23
Multiple Airlines Logo
3:45 pm - 12:30 am
ORD
-
LTN
26h 45m
2 stops
Multiple Airlines Logo
7:55 am - 4:57 pm
LTN
-
ORD
15h 02m
2 stops
$924Multiple Airlines
Fri, Jul 3 - Tue, Jul 7
Multiple Airlines Logo
3:45 pm - 9:15 am
ORD
-
LTN
11h 30m
1 stop
Multiple Airlines Logo
1:00 pm - 7:15 pm
LTN
-
ORD
12h 15m
1 stop
$925Multiple Airlines
Tue, Jul 28 - Thu, Aug 6
Multiple Airlines Logo
2:15 pm - 10:20 pm
ORD
-
LTN
26h 05m
2 stops
Multiple Airlines Logo
12:45 pm - 4:00 pm
LTN
-
ORD
33h 15m
2 stops
$926Multiple Airlines
Sun, Jul 5 - Tue, Jul 14
Multiple Airlines Logo
7:25 pm - 11:15 pm
ORD
-
LTN
21h 50m
2 stops
Multiple Airlines Logo
6:00 am - 1:22 pm
LTN
-
ORD
37h 22m
3 stops
$927Multiple Airlines
Fri, Jul 31 - Sat, Aug 8
Multiple Airlines Logo
8:45 am - 10:25 pm
ORD
-
LTN
31h 40m
3 stops
Multiple Airlines Logo
7:55 am - 7:29 pm
LTN
-
ORD
17h 34m
2 stops
$929Multiple Airlines
Tue, Jul 7 - Tue, Jul 28
Multiple Airlines Logo
8:45 am - 10:50 pm
ORD
-
LTN
32h 05m
3 stops
Multiple Airlines Logo
6:15 pm - 4:00 pm
LTN
-
ORD
27h 45m
2 stops
$931Multiple Airlines
Tue, Sep 1 - Sat, Sep 19

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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 June 13, 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

Cheapest round-trip
Quickest round-trip

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 10/5

3:45 pm-9:15 am

1 stop11h 30m

London Luton

Tue 10/20

1:10 pm-7:15 pm

1 stop12h 05m

$920

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 7/31

8:45 am-5:25 pm

2 stops26h 40m

London Luton

Fri 8/7

6:20 am-2:55 pm

2 stops14h 35m

$921

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 7/13

5:35 pm-3:45 pm

2 stops16h 10m

London Luton

Sat 7/25

9:00 am-7:40 pm

2 stops16h 40m

$922

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 8/17

8:45 am-11:15 pm

3 stops32h 30m

London Luton

Sun 8/23

6:10 pm-8:20 pm

3 stops32h 10m

$923

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 7/3

3:45 pm-12:30 am

2 stops26h 45m

London Luton

Tue 7/7

7:55 am-4:57 pm

2 stops15h 02m

$924

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 7/28

3:45 pm-9:15 am

1 stop11h 30m

London Luton

Thu 8/6

1:00 pm-7:15 pm

1 stop12h 15m

$925

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 7/5

2:15 pm-10:20 pm

2 stops26h 05m

London Luton

Tue 7/14

12:45 pm-4:00 pm

2 stops33h 15m

$926

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 7/31

7:25 pm-11:15 pm

2 stops21h 50m

London Luton

Sat 8/8

6:00 am-1:22 pm

3 stops37h 22m

$927

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 7/7

8:45 am-10:25 pm

3 stops31h 40m

London Luton

Tue 7/28

7:55 am-7:29 pm

2 stops17h 34m

$929

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 9/1

8:45 am-10:50 pm

3 stops32h 05m

London Luton

Sat 9/19

6:15 pm-4:00 pm

2 stops27h 45m

$931

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to London Luton Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How often are flights from Chicago to London delayed?

Historically, on average around 0% of flights between Chicago and London have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

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

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

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

14h 05m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to London Luton Airport takes 14h 05m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to London Luton Airport

  • 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 14h 05m.

  • 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.

Traveling to a place near London?

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

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