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Cheap flights from Illinois to London from $404

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 7/29. 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
9:55 am - 10:50 pm
ORD
-
STN
30h 55m
2 stops
Multiple Airlines Logo
6:20 pm - 8:16 pm
STN
-
ORD
31h 56m
3 stops
$846Multiple Airlines
Wed, Jun 3 - Fri, Jun 12
Multiple Airlines Logo
9:00 pm - 7:50 am
ORD
-
STN
28h 50m
1 stop
Multiple Airlines Logo
6:40 am - 5:50 pm
STN
-
ORD
17h 10m
2 stops
$847Multiple Airlines
Sun, Sep 6 - Fri, Sep 11
Multiple Airlines Logo
9:55 am - 5:35 pm
ORD
-
STN
25h 40m
3 stops
Multiple Airlines Logo
5:35 pm - 4:00 pm
STN
-
ORD
28h 25m
2 stops
$848Multiple Airlines
Wed, Jun 3 - Thu, Jun 18
Multiple Airlines Logo
9:00 pm - 2:30 pm
ORD
-
STN
11h 30m
1 stop
Multiple Airlines Logo
6:15 pm - 7:15 pm
STN
-
ORD
31h 00m
2 stops
$849Multiple Airlines
Sun, Aug 16 - Fri, Aug 21
Multiple Airlines Logo
8:50 am - 9:20 pm
ORD
-
STN
30h 30m
3 stops
Multiple Airlines Logo
12:30 pm - 4:00 pm
STN
-
ORD
33h 30m
2 stops
$850Multiple Airlines
Tue, Jun 2 - Tue, Jun 9
Multiple Airlines Logo
7:25 pm - 9:55 pm
ORD
-
STN
20h 30m
2 stops
Multiple Airlines Logo
6:35 am - 7:48 pm
STN
-
ORD
19h 13m
2 stops
$851Multiple Airlines
Sun, Sep 6 - Sat, Sep 19
Multiple Airlines Logo
10:43 am - 5:35 pm
ORD
-
STN
24h 52m
2 stops
Multiple Airlines Logo
6:30 am - 2:06 pm
STN
-
ORD
37h 36m
3 stops
$852Multiple Airlines
Wed, Jun 17 - Mon, Jun 22
Multiple Airlines Logo
4:37 pm - 1:25 pm
ORD
-
STN
14h 48m
2 stops
Multiple Airlines Logo
3:55 pm - 4:00 pm
STN
-
ORD
30h 05m
2 stops
$853Multiple Airlines
Tue, Jun 2 - Tue, Jun 9
Multiple Airlines Logo
8:50 am - 10:40 pm
ORD
-
STN
31h 50m
2 stops
Multiple Airlines Logo
6:20 pm - 1:05 pm
STN
-
ORD
24h 45m
2 stops
$854Multiple Airlines
Tue, Jun 2 - Wed, Jun 10
Multiple Airlines Logo
3:45 pm - 10:20 pm
ORD
-
STN
24h 35m
2 stops
Multiple Airlines Logo
6:30 am - 10:05 pm
STN
-
ORD
21h 35m
3 stops
$855Multiple Airlines
Tue, Jun 16 - Tue, Jun 23

Turkish Airlines flights from Illinois to London Stansted Airport

Our best Turkish Airlines deals on Illinois to London Stansted Airport flight tickets
Turkish Airlines
Oct 2
ORD8:10 pmChicago O'Hare Intl
20h 00m
1 stop
STN10:10 pmLondon Stansted
Oct 9
STN5:35 pmLondon Stansted
22h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
$858
Turkish Airlines
Oct 3
ORD8:10 pmChicago O'Hare Intl
31h 45m
1 stop
STN9:55 amLondon Stansted
Oct 11
STN10:50 amLondon Stansted
37h 25m
1 stop
ORD6:15 pmChicago O'Hare Intl
$860
Turkish Airlines
Oct 7
ORD8:10 pmChicago O'Hare Intl
20h 00m
1 stop
STN10:10 pmLondon Stansted
Oct 22
STN5:35 pmLondon Stansted
22h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
$865

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 May 17, 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

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 6/3

9:55 am-10:50 pm

2 stops30h 55m

London Stansted

Fri 6/12

6:20 pm-8:16 pm

3 stops31h 56m

$846

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 9/6

9:00 pm-7:50 am

1 stop28h 50m

London Stansted

Fri 9/11

6:40 am-5:50 pm

2 stops17h 10m

$847

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 6/3

9:55 am-5:35 pm

3 stops25h 40m

London Stansted

Thu 6/18

5:35 pm-4:00 pm

2 stops28h 25m

$848

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 8/16

9:00 pm-2:30 pm

1 stop11h 30m

London Stansted

Fri 8/21

6:15 pm-7:15 pm

2 stops31h 00m

$849

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 6/2

8:50 am-9:20 pm

3 stops30h 30m

London Stansted

Tue 6/9

12:30 pm-4:00 pm

2 stops33h 30m

$850
Quickest round-trip

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 9/6

7:25 pm-9:55 pm

2 stops20h 30m

London Stansted

Sat 9/19

6:35 am-7:48 pm

2 stops19h 13m

$851

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 6/17

10:43 am-5:35 pm

2 stops24h 52m

London Stansted

Mon 6/22

6:30 am-2:06 pm

3 stops37h 36m

$852

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 6/2

4:37 pm-1:25 pm

2 stops14h 48m

London Stansted

Tue 6/9

3:55 pm-4:00 pm

2 stops30h 05m

$853

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 6/2

8:50 am-10:40 pm

2 stops31h 50m

London Stansted

Wed 6/10

6:20 pm-1:05 pm

2 stops24h 45m

$854

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 6/16

3:45 pm-10:20 pm

2 stops24h 35m

London Stansted

Tue 6/23

6:30 am-10:05 pm

3 stops21h 35m

$855

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

10h 05m

Direct flights

None
The fastest flight from Illinois to London Stansted Airport takes 10h 05m
There are no direct flights from Illinois to London Stansted Airport. There are no popular flight routes from Illinois to London Stansted Airport.
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Frequently asked questions about flying from Illinois to London Stansted Airport

  • 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
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Crawley
Wembley
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Cobham
Folkestone
Romford
Uxbridge
Guildford

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.

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