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Cheap flights from Chicago O'Hare Intl Airport to London from $405

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 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
10:25 pm - 10:20 pm
ORD
-
LTN
17h 55m
2 stops
Multiple Airlines Logo
2:45 pm - 4:00 pm
LTN
-
ORD
31h 15m
2 stops
$744Multiple Airlines
Sun, May 10 - Tue, May 19
Multiple Airlines Logo
9:55 am - 3:25 pm
ORD
-
LTN
23h 30m
2 stops
Multiple Airlines Logo
6:15 am - 2:55 pm
LTN
-
ORD
38h 40m
3 stops
$748Multiple Airlines
Wed, Jun 3 - Wed, Jun 17
Multiple Airlines Logo
9:55 am - 1:25 pm
ORD
-
LTN
21h 30m
3 stops
Multiple Airlines Logo
6:15 am - 10:05 pm
LTN
-
ORD
21h 50m
3 stops
$754Multiple Airlines
Tue, May 26 - Wed, Jun 17
Multiple Airlines Logo
7:25 pm - 10:10 pm
ORD
-
LTN
20h 45m
2 stops
Multiple Airlines Logo
8:30 am - 6:15 pm
LTN
-
ORD
15h 45m
2 stops
$757Multiple Airlines
Thu, Oct 1 - Thu, Oct 15
Multiple Airlines Logo
7:25 pm - 10:10 pm
ORD
-
LTN
20h 45m
2 stops
Multiple Airlines Logo
6:00 am - 5:20 pm
LTN
-
ORD
17h 20m
2 stops
$760Multiple Airlines
Thu, Oct 15 - Mon, Nov 2
Multiple Airlines Logo
9:55 am - 12:35 pm
ORD
-
LTN
20h 40m
3 stops
Multiple Airlines Logo
8:00 am - 1:05 pm
LTN
-
ORD
35h 05m
2 stops
$762Multiple Airlines
Wed, May 27 - Wed, Jun 3
Multiple Airlines Logo
3:45 pm - 1:45 pm
ORD
-
LTN
16h 00m
2 stops
Multiple Airlines Logo
6:50 am - 5:20 pm
LTN
-
ORD
16h 30m
2 stops
$764Multiple Airlines
Tue, Oct 20 - Wed, Nov 11
Multiple Airlines Logo
10:25 pm - 10:20 pm
ORD
-
LTN
17h 55m
2 stops
Multiple Airlines Logo
6:15 am - 9:00 am
LTN
-
ORD
32h 45m
3 stops
$765Multiple Airlines
Sun, May 10 - Wed, May 13
Multiple Airlines Logo
7:25 pm - 10:20 pm
ORD
-
LTN
20h 55m
2 stops
Multiple Airlines Logo
8:30 am - 6:15 pm
LTN
-
ORD
15h 45m
2 stops
$767Multiple Airlines
Sun, Oct 4 - Thu, Oct 15
Multiple Airlines Logo
7:25 pm - 10:10 pm
ORD
-
LTN
20h 45m
2 stops
Multiple Airlines Logo
8:20 am - 5:20 pm
LTN
-
ORD
15h 00m
2 stops
$772Multiple Airlines
Thu, Oct 22 - Thu, Nov 5

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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 April 30, 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

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 5/10

10:25 pm-10:20 pm

2 stops17h 55m

London Luton

Tue 5/19

2:45 pm-4:00 pm

2 stops31h 15m

$744

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 6/3

9:55 am-3:25 pm

2 stops23h 30m

London Luton

Wed 6/17

6:15 am-2:55 pm

3 stops38h 40m

$748

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 5/26

9:55 am-1:25 pm

3 stops21h 30m

London Luton

Wed 6/17

6:15 am-10:05 pm

3 stops21h 50m

$754

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 10/1

7:25 pm-10:10 pm

2 stops20h 45m

London Luton

Thu 10/15

8:30 am-6:15 pm

2 stops15h 45m

$757

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 10/15

7:25 pm-10:10 pm

2 stops20h 45m

London Luton

Mon 11/2

6:00 am-5:20 pm

2 stops17h 20m

$760

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 5/27

9:55 am-12:35 pm

3 stops20h 40m

London Luton

Wed 6/3

8:00 am-1:05 pm

2 stops35h 05m

$762
Quickest round-trip

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 10/20

3:45 pm-1:45 pm

2 stops16h 00m

London Luton

Wed 11/11

6:50 am-5:20 pm

2 stops16h 30m

$764

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 5/10

10:25 pm-10:20 pm

2 stops17h 55m

London Luton

Wed 5/13

6:15 am-9:00 am

3 stops32h 45m

$765

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 10/4

7:25 pm-10:20 pm

2 stops20h 55m

London Luton

Thu 10/15

8:30 am-6:15 pm

2 stops15h 45m

$767

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 10/22

7:25 pm-10:10 pm

2 stops20h 45m

London Luton

Thu 11/5

8:20 am-5:20 pm

2 stops15h 00m

$772

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

11h 30m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to London Luton Airport takes 11h 30m
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 11h 30m.

  • 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
Dover
Luton
Hayes
Crawley
Slough
Wembley
Stansted
Watford
Croydon
Uxbridge
Brentwood
Dartford
Cobham
Folkestone
Romford
Harrow
Guildford

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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