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Cheap flights from Chicago to London from $306

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 8/9. 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 to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 4:20 pm
ORD
-
LTN
14h 55m
2 stops
Multiple Airlines Logo
6:15 pm - 4:00 pm
LTN
-
ORD
27h 45m
2 stops
$775Multiple Airlines
Fri, Sep 18 - Sat, Sep 26
Multiple Airlines Logo
10:25 pm - 10:50 pm
ORD
-
LTN
18h 25m
2 stops
Multiple Airlines Logo
7:30 am - 8:05 pm
LTN
-
ORD
18h 35m
3 stops
$776Multiple Airlines
Tue, Aug 4 - Thu, Aug 13
Multiple Airlines Logo
3:45 pm - 9:00 am
ORD
-
LTN
11h 15m
1 stop
Multiple Airlines Logo
6:15 am - 2:00 pm
LTN
-
ORD
13h 45m
1 stop
$778Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
3:45 pm - 4:45 pm
ORD
-
LTN
19h 00m
2 stops
Multiple Airlines Logo
6:15 am - 2:55 pm
LTN
-
ORD
14h 40m
2 stops
$779Multiple Airlines
Thu, Aug 6 - Wed, Aug 26
Multiple Airlines Logo
7:25 pm - 8:30 pm
ORD
-
LTN
19h 05m
2 stops
Multiple Airlines Logo
10:00 am - 7:48 pm
LTN
-
ORD
39h 48m
3 stops
$780Multiple Airlines
Thu, Oct 8 - Wed, Oct 21
Multiple Airlines Logo
3:40 pm - 3:45 pm
ORD
-
LTN
18h 05m
2 stops
Multiple Airlines Logo
3:55 pm - 12:35 pm
LTN
-
ORD
26h 40m
2 stops
$781Multiple Airlines
Mon, Jul 27 - Wed, Aug 5
Multiple Airlines Logo
3:45 pm - 11:25 am
ORD
-
LTN
13h 40m
1 stop
Multiple Airlines Logo
8:15 am - 7:15 pm
LTN
-
ORD
17h 00m
1 stop
$782Multiple Airlines
Sun, Aug 9 - Mon, Aug 17
Multiple Airlines Logo
3:45 pm - 9:00 am
ORD
-
LTN
11h 15m
1 stop
Multiple Airlines Logo
11:00 am - 7:15 pm
LTN
-
ORD
14h 15m
1 stop
$783Multiple Airlines
Wed, Sep 23 - Sun, Sep 27
Multiple Airlines Logo
3:45 pm - 9:15 am
ORD
-
LTN
11h 30m
1 stop
Multiple Airlines Logo
12:50 pm - 7:15 pm
LTN
-
ORD
12h 25m
1 stop
$785Multiple Airlines
Mon, Sep 7 - Fri, Sep 18
Multiple Airlines Logo
9:00 pm - 4:45 pm
ORD
-
LTN
13h 45m
1 stop
Multiple Airlines Logo
9:25 am - 7:15 pm
LTN
-
ORD
15h 50m
1 stop
$786Multiple Airlines
Thu, Sep 17 - Thu, Sep 24

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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 July 12, 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

Fri 9/18

7:25 pm-4:20 pm

2 stops14h 55m

London Luton

Sat 9/26

6:15 pm-4:00 pm

2 stops27h 45m

$775

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 8/4

10:25 pm-10:50 pm

2 stops18h 25m

London Luton

Thu 8/13

7:30 am-8:05 pm

3 stops18h 35m

$776

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 9/16

3:45 pm-9:00 am

1 stop11h 15m

London Luton

Wed 9/23

6:15 am-2:00 pm

1 stop13h 45m

$778

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 8/6

3:45 pm-4:45 pm

2 stops19h 00m

London Luton

Wed 8/26

6:15 am-2:55 pm

2 stops14h 40m

$779

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 10/8

7:25 pm-8:30 pm

2 stops19h 05m

London Luton

Wed 10/21

10:00 am-7:48 pm

3 stops39h 48m

$780

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 7/27

3:40 pm-3:45 pm

2 stops18h 05m

London Luton

Wed 8/5

3:55 pm-12:35 pm

2 stops26h 40m

$781

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 8/9

3:45 pm-11:25 am

1 stop13h 40m

London Luton

Mon 8/17

8:15 am-7:15 pm

1 stop17h 00m

$782

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 9/23

3:45 pm-9:00 am

1 stop11h 15m

London Luton

Sun 9/27

11:00 am-7:15 pm

1 stop14h 15m

$783
Quickest round-trip

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 9/7

3:45 pm-9:15 am

1 stop11h 30m

London Luton

Fri 9/18

12:50 pm-7:15 pm

1 stop12h 25m

$785

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 9/17

9:00 pm-4:45 pm

1 stop13h 45m

London Luton

Thu 9/24

9:25 am-7:15 pm

1 stop15h 50m

$786

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

11h 20m

Direct flights

None
The fastest flight from Chicago to London Luton Airport takes 11h 20m
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 11h 20m.

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

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.
Start using Trips
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