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Cheap flights from Chicago to London from $432

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 to London departing on 7/4. 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 to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 10:10 pm
ORD
-
LTN
20h 45m
2 stops
Multiple Airlines Logo
5:00 am - 6:15 pm
LTN
-
ORD
43h 15m
3 stops
$880Multiple Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
10:25 pm - 10:15 pm
ORD
-
LTN
17h 50m
2 stops
Multiple Airlines Logo
7:55 am - 10:05 pm
LTN
-
ORD
20h 10m
2 stops
$883Multiple Airlines
Wed, Jul 22 - Tue, Jul 28
Multiple Airlines Logo
2:15 pm - 6:30 pm
ORD
-
LTN
22h 15m
2 stops
Multiple Airlines Logo
2:45 pm - 2:45 pm
LTN
-
ORD
30h 00m
2 stops
$884Multiple Airlines
Tue, Jun 23 - Tue, Jun 30
Multiple Airlines Logo
3:45 pm - 1:45 pm
ORD
-
LTN
16h 00m
2 stops
Multiple Airlines Logo
8:00 am - 2:00 pm
LTN
-
ORD
36h 00m
2 stops
$885Multiple Airlines
Mon, Oct 12 - Sun, Oct 18
Multiple Airlines Logo
3:55 pm - 1:30 pm
ORD
-
LTN
15h 35m
2 stops
Multiple Airlines Logo
9:45 pm - 3:30 pm
LTN
-
ORD
47h 45m
3 stops
$886Multiple Airlines
Wed, Nov 4 - Mon, Nov 9
Multiple Airlines Logo
9:55 am - 10:20 pm
ORD
-
LTN
30h 25m
2 stops
Multiple Airlines Logo
5:40 am - 1:22 pm
LTN
-
ORD
37h 42m
3 stops
$887Multiple Airlines
Sun, Jun 14 - Mon, Jun 22
Multiple Airlines Logo
7:15 pm - 11:00 pm
ORD
-
LTN
21h 45m
2 stops
Multiple Airlines Logo
1:00 pm - 4:10 pm
LTN
-
ORD
33h 10m
2 stops
$888Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:25 pm - 9:15 pm
ORD
-
LTN
19h 50m
2 stops
Multiple Airlines Logo
8:15 am - 9:25 pm
LTN
-
ORD
19h 10m
2 stops
$889Multiple Airlines
Wed, Jul 15 - Mon, Jul 27
Multiple Airlines Logo
9:50 am - 10:55 pm
ORD
-
LTN
31h 05m
2 stops
Multiple Airlines Logo
4:30 pm - 12:40 pm
LTN
-
ORD
26h 10m
2 stops
$890Multiple Airlines
Wed, Jul 8 - Wed, Jul 15
Multiple Airlines Logo
11:05 am - 3:25 pm
ORD
-
LTN
22h 20m
2 stops
Multiple Airlines Logo
6:15 am - 2:55 pm
LTN
-
ORD
14h 40m
2 stops
$891Multiple Airlines
Wed, Jul 22 - Wed, Jul 29

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 May 26, 2026.
Use the filters below to find and compare flights from Chicago 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

Tue 9/1

7:25 pm-10:10 pm

2 stops20h 45m

London Luton

Tue 9/29

5:00 am-6:15 pm

3 stops43h 15m

$880

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 7/22

10:25 pm-10:15 pm

2 stops17h 50m

London Luton

Tue 7/28

7:55 am-10:05 pm

2 stops20h 10m

$883

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 6/23

2:15 pm-6:30 pm

2 stops22h 15m

London Luton

Tue 6/30

2:45 pm-2:45 pm

2 stops30h 00m

$884

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 10/12

3:45 pm-1:45 pm

2 stops16h 00m

London Luton

Sun 10/18

8:00 am-2:00 pm

2 stops36h 00m

$885

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/4

3:55 pm-1:30 pm

2 stops15h 35m

London Luton

Mon 11/9

9:45 pm-3:30 pm

3 stops47h 45m

$886

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 6/14

9:55 am-10:20 pm

2 stops30h 25m

London Luton

Mon 6/22

5:40 am-1:22 pm

3 stops37h 42m

$887

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 8/17

7:15 pm-11:00 pm

2 stops21h 45m

London Luton

Mon 8/24

1:00 pm-4:10 pm

2 stops33h 10m

$888

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 7/15

7:25 pm-9:15 pm

2 stops19h 50m

London Luton

Mon 7/27

8:15 am-9:25 pm

2 stops19h 10m

$889

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 7/8

9:50 am-10:55 pm

2 stops31h 05m

London Luton

Wed 7/15

4:30 pm-12:40 pm

2 stops26h 10m

$890
Quickest round-trip

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 7/22

11:05 am-3:25 pm

2 stops22h 20m

London Luton

Wed 7/29

6:15 am-2:55 pm

2 stops14h 40m

$891

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 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 to London Luton Airport

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

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

Fastest flight time

10h 35m

Direct flights

None
The fastest flight from Chicago to London Luton Airport takes 10h 35m
There are no direct flights from Chicago to London Luton Airport. There are no popular flight routes from Chicago to London Luton Airport.
Search flight deals

Frequently asked questions about flying from Chicago to London Luton Airport

  • How far is Chicago to London Luton by plane?

    The straight-line distance from Chicago to London Luton is 3924.0 mi. A reasonable flight in good conditions will take 10h 35m.

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

    Prices for flights from Chicago to London Luton Airport refresh daily.

  • How old do you have to be to fly from Chicago 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 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
Slough
Stansted
Harrow
Dartford
Brentwood
Watford
Ilford
Cobham
Folkestone
Uxbridge
Guildford

Why use momondo?

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

Finding the right flight to London from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. All flights to London from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to London from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.
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