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Cheap flights from Illinois to London from $266

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 11/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 pm - 2:50 pmORD-STN
14h 20m2 stops
Multiple Airlines Logo
6:30 am - 5:20 pmSTN-ORD
16h 50m2 stops
$535Multiple Airlines
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Thu, Jan 15 - Mon, Jan 19
Multiple Airlines Logo
7:20 pm - 3:40 pmORD-STN
14h 20m2 stops
Multiple Airlines Logo
6:50 pm - 4:45 pmSTN-ORD
27h 55m2 stops
$537Multiple Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
Multiple Airlines Logo
7:20 pm - 11:35 pmORD-STN
22h 15m2 stops
Multiple Airlines Logo
6:25 pm - 4:45 pmSTN-ORD
28h 20m2 stops
$538Multiple Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 3
Multiple Airlines Logo
7:20 pm - 10:35 pmORD-STN
21h 15m2 stops
Multiple Airlines Logo
6:25 am - 4:45 pmSTN-ORD
16h 20m2 stops
$541Multiple Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
Multiple Airlines Logo
9:50 pm - 9:20 pmORD-STN
17h 30m2 stops
Multiple Airlines Logo
9:45 pm - 1:10 pmSTN-ORD
21h 25m2 stops
$545Multiple Airlines
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Mon, Dec 1 - Mon, Dec 8
Multiple Airlines Logo
7:20 pm - 11:00 pmORD-STN
21h 40m3 stops
Multiple Airlines Logo
6:30 am - 4:45 pmSTN-ORD
16h 15m2 stops
$547Multiple Airlines
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Sun, Nov 23 - Sat, Dec 6
Multiple Airlines Logo
7:20 pm - 11:20 pmORD-STN
22h 00m2 stops
Multiple Airlines Logo
2:45 pm - 4:45 pmSTN-ORD
32h 00m2 stops
$549Multiple Airlines
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Thu, Nov 27 - Tue, Dec 2
Multiple Airlines Logo
9:50 pm - 10:50 pmORD-STN
19h 00m2 stops
Multiple Airlines Logo
9:45 pm - 3:10 pmSTN-ORD
23h 25m2 stops
$550Multiple Airlines
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Wed, Nov 26 - Tue, Dec 2
Turkish Airlines Logo
12:50 pm - 4:20 pmORD-STN
22h 30m1 stop
Turkish Airlines Logo
6:40 am - 7:25 pmSTN-ORD
17h 45m1 stop
$594Turkish Airlines
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Thu, Mar 19 - Wed, Mar 25
Turkish Airlines Logo
5:18 pm - 10:15 amSTL-STN
34h 57m2 stops
Turkish Airlines Logo
5:45 pm - 2:18 pmSTN-STL
26h 33m2 stops
$1,095Turkish Airlines
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Wed, Apr 22 - Fri, May 1

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 19
ORD12:50 pmChicago O'Hare Intl
22h 30m
1 stop
STN4:20 pmLondon Stansted
Mar 25
STN6:40 amLondon Stansted
17h 45m
1 stop
ORD7:25 pmChicago O'Hare Intl
$594
Find similar
Turkish Airlines
Apr 22
STL5:18 pmLambert-St Louis
34h 57m
2 stops
STN10:15 amLondon Stansted
May 1
STN5:45 pmLondon Stansted
26h 33m
2 stops
STL2:18 pmLambert-St Louis
$1,095
Find similar
Turkish Airlines
Apr 25
STL5:18 pmLambert-St Louis
34h 57m
2 stops
STN10:15 amLondon Stansted
May 2
STN5:45 pmLondon Stansted
26h 33m
2 stops
STL2:18 pmLambert-St Louis
$1,101
Find similar

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 November 3, 2025.
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

Thu 1/15

6:30 pm-2:50 pm

2 stops14h 20m

London Stansted

Mon 1/19

6:30 am-5:20 pm

2 stops16h 50m

$535

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 11/14

7:20 pm-3:40 pm

2 stops14h 20m

London Stansted

Tue 11/18

6:50 pm-4:45 pm

2 stops27h 55m

$537

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 11/27

7:20 pm-11:35 pm

2 stops22h 15m

London Stansted

Wed 12/3

6:25 pm-4:45 pm

2 stops28h 20m

$538

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 11/30

7:20 pm-10:35 pm

2 stops21h 15m

London Stansted

Sun 12/7

6:25 am-4:45 pm

2 stops16h 20m

$541

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 12/1

9:50 pm-9:20 pm

2 stops17h 30m

London Stansted

Mon 12/8

9:45 pm-1:10 pm

2 stops21h 25m

$545

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 11/23

7:20 pm-11:00 pm

3 stops21h 40m

London Stansted

Sat 12/6

6:30 am-4:45 pm

2 stops16h 15m

$547

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 11/27

7:20 pm-11:20 pm

2 stops22h 00m

London Stansted

Tue 12/2

2:45 pm-4:45 pm

2 stops32h 00m

$549

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 11/26

9:50 pm-10:50 pm

2 stops19h 00m

London Stansted

Tue 12/2

9:45 pm-3:10 pm

2 stops23h 25m

$550

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 3/19

12:50 pm-4:20 pm

1 stop22h 30m

London Stansted

Wed 3/25

6:40 am-7:25 pm

1 stop17h 45m

$594

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Wed 4/22

5:18 pm-10:15 am

2 stops34h 57m

London Stansted

Fri 5/1

5:45 pm-2:18 pm

2 stops26h 33m

$1,095

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 25m on average. If you fly from Peoria (another popular airport in Illinois) to London Heathrow Airport, then the average flight time is 10h 15m.

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

Direct flights

None
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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  • 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
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Folkestone
Romford
Ilford
Cobham
Wembley
Stansted
Watford
Harrow

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

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