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Cheap flights from Illinois to London from $372

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 8/3. 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

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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 - 10:25 pm
ORD
-
STN
21h 00m
2 stops
Multiple Airlines Logo
6:40 am - 6:15 pm
STN
-
ORD
17h 35m
2 stops
$645Multiple Airlines
Mon, Apr 20 - Fri, Apr 24
Turkish Airlines Logo
8:10 pm - 4:40 pm
ORD
-
STN
38h 30m
1 stop
Turkish Airlines Logo
5:35 pm - 9:40 am
STN
-
ORD
22h 05m
1 stop
$646Turkish Airlines
Wed, Apr 15 - Tue, Apr 21
Turkish Airlines Logo
8:10 pm - 10:10 pm
ORD
-
STN
20h 00m
1 stop
Turkish Airlines Logo
5:35 pm - 9:40 am
STN
-
ORD
22h 05m
1 stop
$648Turkish Airlines
Wed, Apr 15 - Fri, Apr 24
Turkish Airlines Logo
8:10 pm - 10:10 pm
ORD
-
STN
20h 00m
1 stop
Turkish Airlines Logo
10:50 am - 9:40 am
STN
-
ORD
28h 50m
1 stop
$655Turkish Airlines
Wed, Apr 15 - Mon, Apr 20
Turkish Airlines Logo
8:10 pm - 4:50 pm
ORD
-
STN
38h 40m
1 stop
Turkish Airlines Logo
5:45 pm - 9:40 am
STN
-
ORD
21h 55m
1 stop
$656Turkish Airlines
Thu, Apr 23 - Wed, May 13
Turkish Airlines Logo
8:10 pm - 4:50 pm
ORD
-
STN
38h 40m
1 stop
Turkish Airlines Logo
5:35 pm - 9:40 am
STN
-
ORD
22h 05m
1 stop
$657Turkish Airlines
Mon, Apr 13 - Thu, Apr 23
Turkish Airlines Logo
11:25 am - 9:55 am
ORD
-
STN
16h 30m
1 stop
Turkish Airlines Logo
5:35 pm - 9:40 am
STN
-
ORD
22h 05m
1 stop
$658Turkish Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
11:25 am - 11:35 pm
ORD
-
STN
30h 10m
2 stops
Multiple Airlines Logo
8:20 am - 9:40 am
STN
-
ORD
31h 20m
2 stops
$659Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Turkish Airlines Logo
8:10 pm - 9:55 am
ORD
-
STN
31h 45m
1 stop
Turkish Airlines Logo
5:35 pm - 9:40 am
STN
-
ORD
22h 05m
1 stop
$660Turkish Airlines
Thu, Apr 16 - Fri, Apr 24
Multiple Airlines Logo
7:25 pm - 12:50 am
ORD
-
STN
23h 25m
3 stops
Multiple Airlines Logo
6:30 am - 9:05 am
STN
-
ORD
32h 35m
3 stops
$662Multiple Airlines
Sun, Apr 19 - Mon, May 4

Turkish Airlines flights from Illinois to London Stansted Airport

Our best Turkish Airlines deals on Illinois to London Stansted Airport flight tickets
Turkish Airlines
Apr 15
ORD8:10 pmChicago O'Hare Intl
38h 30m
1 stop
STN4:40 pmLondon Stansted
Apr 21
STN5:35 pmLondon Stansted
22h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
$646
Turkish Airlines
Apr 15
ORD8:10 pmChicago O'Hare Intl
20h 00m
1 stop
STN10:10 pmLondon Stansted
Apr 24
STN5:35 pmLondon Stansted
22h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
$648
Turkish Airlines
Apr 15
ORD8:10 pmChicago O'Hare Intl
20h 00m
1 stop
STN10:10 pmLondon Stansted
Apr 20
STN10:50 amLondon Stansted
28h 50m
1 stop
ORD9:40 amChicago O'Hare Intl
$655

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to London Stansted 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 March 31, 2026.
Use the filters below to find and compare flights from Illinois to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 4/20

7:25 pm-10:25 pm

2 stops21h 00m

London Stansted

Fri 4/24

6:40 am-6:15 pm

2 stops17h 35m

$645

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 4/15

8:10 pm-4:40 pm

1 stop38h 30m

London Stansted

Tue 4/21

5:35 pm-9:40 am

1 stop22h 05m

$646

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 4/15

8:10 pm-10:10 pm

1 stop20h 00m

London Stansted

Fri 4/24

5:35 pm-9:40 am

1 stop22h 05m

$648

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 4/15

8:10 pm-10:10 pm

1 stop20h 00m

London Stansted

Mon 4/20

10:50 am-9:40 am

1 stop28h 50m

$655

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 4/23

8:10 pm-4:50 pm

1 stop38h 40m

London Stansted

Wed 5/13

5:45 pm-9:40 am

1 stop21h 55m

$656

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 4/13

8:10 pm-4:50 pm

1 stop38h 40m

London Stansted

Thu 4/23

5:35 pm-9:40 am

1 stop22h 05m

$657

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 4/24

11:25 am-9:55 am

1 stop16h 30m

London Stansted

Fri 5/1

5:35 pm-9:40 am

1 stop22h 05m

$658

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 4/15

11:25 am-11:35 pm

2 stops30h 10m

London Stansted

Wed 4/22

8:20 am-9:40 am

2 stops31h 20m

$659

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 4/16

8:10 pm-9:55 am

1 stop31h 45m

London Stansted

Fri 4/24

5:35 pm-9:40 am

1 stop22h 05m

$660

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 4/19

7:25 pm-12:50 am

3 stops23h 25m

London Stansted

Mon 5/4

6:30 am-9:05 am

3 stops32h 35m

$662

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 Stansted 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

What is the cheapest airline that flies from Illinois to London Stansted?

Turkish Airlines is the most popular carrier operating from Illinois to London Stansted

Cheap Illinois to London Stansted Airport flight deals and tips

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

Fastest flight time

14h 36m

Direct flights

None
The fastest flight from Illinois to London Stansted Airport takes 14h 36m
There are no direct flights from Illinois to London Stansted Airport. There are no popular flight routes from Illinois to London Stansted Airport.
Search flight deals

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

    Prices for flights from Illinois to London Stansted Airport refresh daily.

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

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

    The required travel and health documents for your London Stansted 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 Stansted 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
Stansted
Croydon
Dartford
Brentwood
Guildford
Cobham
Folkestone
Romford
Harrow
Watford
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?

Yes. momondo allows you to filter the results for Illinois to London flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Illinois and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Illinois 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 Illinois and alert you when they change.

An easier way to manage your London Stansted 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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