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Cheap flights from Illinois to London from $286

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
6:30 pm - 6:20 pm
ORD
-
STN
17h 50m
2 stops
Multiple Airlines Logo
6:30 am - 5:20 pm
STN
-
ORD
16h 50m
2 stops
$527Multiple Airlines
Mon, Feb 23 - Fri, Feb 27
Multiple Airlines Logo
6:30 pm - 6:20 pm
ORD
-
STN
17h 50m
2 stops
Multiple Airlines Logo
6:30 am - 5:20 pm
STN
-
ORD
16h 50m
2 stops
$532Multiple Airlines
Mon, Mar 2 - Fri, Mar 6
Multiple Airlines Logo
7:25 pm - 7:20 pm
ORD
-
STN
17h 55m
2 stops
Multiple Airlines Logo
8:30 am - 9:25 pm
STN
-
ORD
18h 55m
2 stops
$533Multiple Airlines
Fri, Apr 17 - Sun, Apr 19
Multiple Airlines Logo
6:30 pm - 2:20 pm
ORD
-
STN
13h 50m
2 stops
Multiple Airlines Logo
6:30 am - 5:20 pm
STN
-
ORD
16h 50m
2 stops
$534Multiple Airlines
Tue, Feb 24 - Sat, Mar 7
Multiple Airlines Logo
9:00 pm - 6:20 pm
ORD
-
STN
15h 20m
1 stop
Multiple Airlines Logo
1:30 pm - 7:15 pm
STN
-
ORD
11h 45m
1 stop
$536Multiple Airlines
Tue, Feb 24 - Sat, Feb 28
Multiple Airlines Logo
9:00 pm - 5:50 pm
ORD
-
STN
14h 50m
1 stop
Multiple Airlines Logo
6:30 am - 2:00 pm
STN
-
ORD
13h 30m
1 stop
$537Multiple Airlines
Wed, Mar 4 - Sun, Mar 8
Multiple Airlines Logo
9:00 pm - 4:35 pm
ORD
-
STN
13h 35m
1 stop
Multiple Airlines Logo
6:30 am - 2:00 pm
STN
-
ORD
13h 30m
1 stop
$538Multiple Airlines
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
9:00 pm - 6:20 pm
ORD
-
STN
15h 20m
1 stop
Multiple Airlines Logo
8:30 am - 7:15 pm
STN
-
ORD
16h 45m
1 stop
$539Multiple Airlines
Mon, Feb 23 - Tue, Mar 3
Multiple Airlines Logo
9:00 pm - 6:20 pm
ORD
-
STN
15h 20m
1 stop
Multiple Airlines Logo
8:30 am - 3:00 pm
STN
-
ORD
11h 30m
1 stop
$540Multiple Airlines
Fri, Feb 27 - Sun, Mar 8
Multiple Airlines Logo
7:25 pm - 9:20 pm
ORD
-
STN
19h 55m
2 stops
Multiple Airlines Logo
6:30 am - 6:15 pm
STN
-
ORD
17h 45m
2 stops
$541Multiple Airlines
Wed, Apr 15 - Wed, Apr 22

Turkish Airlines flights from Illinois to London Stansted Airport

Our best Turkish Airlines deals on Illinois to London Stansted Airport flight tickets
Turkish Airlines
Mar 30
STL7:45 amLambert-St Louis
27h 05m
2 stops
STN4:50 pmLondon Stansted
Apr 14
STN5:45 pmLondon Stansted
33h 23m
2 stops
STL9:08 pmLambert-St Louis
$1,148
Turkish Airlines
Mar 30
STL7:45 amLambert-St Louis
32h 25m
2 stops
STN10:10 pmLondon Stansted
Apr 14
STN6:15 amLondon Stansted
44h 53m
2 stops
STL9:08 pmLambert-St Louis
$1,149
Turkish Airlines
May 2
STL7:45 amLambert-St Louis
44h 10m
2 stops
STN9:55 amLondon Stansted
May 7
STN5:45 pmLondon Stansted
33h 23m
2 stops
STL9:08 pmLambert-St Louis
$1,189

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 February 12, 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

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 2/23

6:30 pm-6:20 pm

2 stops17h 50m

London Stansted

Fri 2/27

6:30 am-5:20 pm

2 stops16h 50m

$527

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 3/2

6:30 pm-6:20 pm

2 stops17h 50m

London Stansted

Fri 3/6

6:30 am-5:20 pm

2 stops16h 50m

$532

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 4/17

7:25 pm-7:20 pm

2 stops17h 55m

London Stansted

Sun 4/19

8:30 am-9:25 pm

2 stops18h 55m

$533

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 2/24

6:30 pm-2:20 pm

2 stops13h 50m

London Stansted

Sat 3/7

6:30 am-5:20 pm

2 stops16h 50m

$534

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 2/24

9:00 pm-6:20 pm

1 stop15h 20m

London Stansted

Sat 2/28

1:30 pm-7:15 pm

1 stop11h 45m

$536

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 3/4

9:00 pm-5:50 pm

1 stop14h 50m

London Stansted

Sun 3/8

6:30 am-2:00 pm

1 stop13h 30m

$537

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 2/27

9:00 pm-4:35 pm

1 stop13h 35m

London Stansted

Sun 3/1

6:30 am-2:00 pm

1 stop13h 30m

$538

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 2/23

9:00 pm-6:20 pm

1 stop15h 20m

London Stansted

Tue 3/3

8:30 am-7:15 pm

1 stop16h 45m

$539

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 2/27

9:00 pm-6:20 pm

1 stop15h 20m

London Stansted

Sun 3/8

8:30 am-3:00 pm

1 stop11h 30m

$540

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 4/15

7:25 pm-9:20 pm

2 stops19h 55m

London Stansted

Wed 4/22

6:30 am-6:15 pm

2 stops17h 45m

$541

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

How long does it take to fly to London Stansted Airport?

The flight from Illinois to London Stansted Airport depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to London Heathrow Airport (the most popular airport in London Stansted Airport), then the flight time is 9h 20m on average. If you fly from Moline (another popular airport in Illinois) to London Heathrow Airport, then the average flight time is 10h 45m.

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 35m

Direct flights

None
The fastest flight from Illinois to London Stansted Airport takes 14h 35m
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
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?

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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