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Cheap flights from Illinois to London from $299

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois 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
0 bags

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Find the cheapest flights from Illinois to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 5:25 pm
ORD
-
LTN
16h 00m
2 stops
Multiple Airlines Logo
9:05 am - 9:25 pm
LTN
-
ORD
18h 20m
2 stops
$531Multiple Airlines
Fri, Apr 17 - Sun, Apr 19
Multiple Airlines Logo
9:00 pm - 8:05 pm
ORD
-
LTN
17h 05m
1 stop
Multiple Airlines Logo
12:25 pm - 7:15 pm
LTN
-
ORD
12h 50m
1 stop
$535Multiple Airlines
Tue, Feb 24 - Sat, Feb 28
Multiple Airlines Logo
9:00 pm - 4:15 pm
ORD
-
LTN
13h 15m
1 stop
Multiple Airlines Logo
8:05 am - 2:00 pm
LTN
-
ORD
11h 55m
1 stop
$536Multiple Airlines
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
7:25 pm - 3:30 pm
ORD
-
LTN
14h 05m
2 stops
Multiple Airlines Logo
9:40 am - 6:15 pm
LTN
-
ORD
14h 35m
2 stops
$540Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
6:30 pm - 8:05 pm
ORD
-
LTN
19h 35m
2 stops
Multiple Airlines Logo
6:00 am - 5:20 pm
LTN
-
ORD
17h 20m
2 stops
$541Multiple Airlines
Tue, Feb 24 - Sat, Feb 28
Multiple Airlines Logo
7:25 pm - 10:10 pm
ORD
-
LTN
20h 45m
2 stops
Multiple Airlines Logo
9:05 am - 6:15 pm
LTN
-
ORD
15h 10m
2 stops
$542Multiple Airlines
Tue, Apr 28 - Sun, May 10
Multiple Airlines Logo
3:50 pm - 8:55 am
ORD
-
LTN
11h 05m
1 stop
Multiple Airlines Logo
9:00 am - 6:55 pm
LTN
-
ORD
14h 55m
1 stop
$543Multiple Airlines
Sun, Mar 1 - Tue, Mar 10
Multiple Airlines Logo
7:25 pm - 11:25 pm
ORD
-
LTN
22h 00m
2 stops
Multiple Airlines Logo
6:15 am - 6:15 pm
LTN
-
ORD
18h 00m
2 stops
$544Multiple Airlines
Thu, Apr 23 - Wed, Apr 29
Multiple Airlines Logo
8:40 pm - 8:05 pm
ORD
-
LTN
18h 25m
1 stop
Multiple Airlines Logo
1:10 pm - 7:15 pm
LTN
-
ORD
12h 05m
1 stop
$545Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
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
$546Multiple Airlines
Wed, Apr 15 - Wed, Apr 22

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 February 12, 2026.
Use the filters below to find and compare flights from Illinois 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

Fri 4/17

7:25 pm-5:25 pm

2 stops16h 00m

London Luton

Sun 4/19

9:05 am-9:25 pm

2 stops18h 20m

$531

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 2/24

9:00 pm-8:05 pm

1 stop17h 05m

London Luton

Sat 2/28

12:25 pm-7:15 pm

1 stop12h 50m

$535

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Fri 2/27

9:00 pm-4:15 pm

1 stop13h 15m

London Luton

Sun 3/1

8:05 am-2:00 pm

1 stop11h 55m

$536

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 4/21

7:25 pm-3:30 pm

2 stops14h 05m

London Luton

Tue 4/28

9:40 am-6:15 pm

2 stops14h 35m

$540

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 2/24

6:30 pm-8:05 pm

2 stops19h 35m

London Luton

Sat 2/28

6:00 am-5:20 pm

2 stops17h 20m

$541

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 4/28

7:25 pm-10:10 pm

2 stops20h 45m

London Luton

Sun 5/10

9:05 am-6:15 pm

2 stops15h 10m

$542

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 3/1

3:50 pm-8:55 am

1 stop11h 05m

London Luton

Tue 3/10

9:00 am-6:55 pm

1 stop14h 55m

$543

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 4/23

7:25 pm-11:25 pm

2 stops22h 00m

London Luton

Wed 4/29

6:15 am-6:15 pm

2 stops18h 00m

$544

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 3/24

8:40 pm-8:05 pm

1 stop18h 25m

London Luton

Tue 3/31

1:10 pm-7:15 pm

1 stop12h 05m

$545

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 4/15

3:45 pm-9:00 am

1 stop11h 15m

London Luton

Wed 4/22

6:15 am-2:00 pm

1 stop13h 45m

$546

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 Illinois 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 long does it take to fly to London Luton Airport?

If you’re flying from a popular airport in Illinois, such as Chicago or Moline, and flying into London Luton Airport, then you can expect flight times to average 9h 20m and 10h 45m, respectively.

Cheap Illinois to London Luton Airport flight deals and tips

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

Fastest flight time

10h 45m

Direct flights

None
The fastest flight from Illinois to London Luton Airport takes 10h 45m
There are no direct flights from Illinois to London Luton Airport. There are no popular flight routes from Illinois to London Luton Airport.
Search flight deals

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

    Prices for flights from Illinois to London Luton Airport were last updated today.

  • How old do you have to be to fly from Illinois 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 Illinois to London Luton Airport.

  • What documentation or ID do you need to fly to London Luton Airport?

    The required travel and health documents for your London Luton Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Luton Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near London?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to London for you.

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

momondo does allow users to show only those flights to London from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

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

I’m not ready to book a flight from Illinois to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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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