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Cheap flights from Illinois to London from £238

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 25/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:30 - 17:35
ORD
-
STN
17h 05m
2 stops
Multiple Airlines Logo
21:20 - 18:20
STN
-
ORD
26h 00m
2 stops
£386Multiple Airlines
Sun, 1 Mar - Mon, 9 Mar
Multiple Airlines Logo
18:30 - 14:20
ORD
-
STN
13h 50m
2 stops
Multiple Airlines Logo
06:30 - 17:20
STN
-
ORD
16h 50m
2 stops
£387Multiple Airlines
Tue, 3 Mar - Sat, 7 Mar
Multiple Airlines Logo
19:25 - 17:05
ORD
-
STN
15h 40m
2 stops
Multiple Airlines Logo
06:30 - 18:15
STN
-
ORD
17h 45m
2 stops
£388Multiple Airlines
Mon, 20 Apr - Thu, 30 Apr
Multiple Airlines Logo
18:30 - 21:20
ORD
-
STN
20h 50m
2 stops
Multiple Airlines Logo
06:30 - 17:20
STN
-
ORD
16h 50m
2 stops
£389Multiple Airlines
Mon, 2 Mar - Fri, 6 Mar
Multiple Airlines Logo
18:30 - 22:50
ORD
-
STN
22h 20m
2 stops
Multiple Airlines Logo
06:30 - 17:20
STN
-
ORD
16h 50m
2 stops
£390Multiple Airlines
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
19:25 - 23:25
ORD
-
STN
22h 00m
2 stops
Multiple Airlines Logo
08:30 - 18:15
STN
-
ORD
15h 45m
2 stops
£391Multiple Airlines
Sun, 12 Apr - Mon, 20 Apr
Multiple Airlines Logo
18:30 - 21:20
ORD
-
STN
20h 50m
2 stops
Multiple Airlines Logo
06:30 - 18:20
STN
-
ORD
16h 50m
2 stops
£391Multiple Airlines
Tue, 3 Mar - Tue, 10 Mar
Multiple Airlines Logo
18:30 - 21:20
ORD
-
STN
20h 50m
2 stops
Multiple Airlines Logo
06:30 - 17:20
STN
-
ORD
16h 50m
2 stops
£395Multiple Airlines
Mon, 23 Feb - Fri, 27 Feb
Multiple Airlines Logo
21:00 - 14:50
ORD
-
STN
11h 50m
1 stop
Multiple Airlines Logo
08:30 - 19:15
STN
-
ORD
16h 45m
1 stop
£396Multiple Airlines
Sun, 22 Feb - Tue, 3 Mar
Multiple Airlines Logo
19:25 - 22:20
ORD
-
STN
20h 55m
2 stops
Multiple Airlines Logo
08:30 - 18:15
STN
-
ORD
15h 45m
2 stops
£397Multiple Airlines
Sun, 19 Apr - Wed, 29 Apr

Turkish Airlines flights from Illinois to London Stansted Airport

Our best Turkish Airlines deals on Illinois to London Stansted Airport flight tickets
Turkish Airlines
30 Mar
STL07:45Lambert-St Louis
51h 05m
2 stops
STN16:50London Stansted
14 Apr
STN17:45London Stansted
33h 23m
2 stops
STL21:08Lambert-St Louis
£843
Turkish Airlines
30 Mar
STL07:45Lambert-St Louis
32h 25m
2 stops
STN22:10London Stansted
10 Apr
STN17:45London Stansted
33h 23m
2 stops
STL21:08Lambert-St Louis
£844
Turkish Airlines
30 Mar
STL07:45Lambert-St Louis
27h 05m
2 stops
STN16:50London Stansted
10 Apr
STN10:50London Stansted
40h 18m
2 stops
STL21:08Lambert-St Louis
£908

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 8 February 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

Sun 1/3

18:30-17:35

2 stops17h 05m

London Stansted

Mon 9/3

21:20-18:20

2 stops26h 00m

£386

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 3/3

18:30-14:20

2 stops13h 50m

London Stansted

Sat 7/3

06:30-17:20

2 stops16h 50m

£387

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 20/4

19:25-17:05

2 stops15h 40m

London Stansted

Thu 30/4

06:30-18:15

2 stops17h 45m

£388

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 2/3

18:30-21:20

2 stops20h 50m

London Stansted

Fri 6/3

06:30-17:20

2 stops16h 50m

£389

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 25/2

18:30-22:50

2 stops22h 20m

London Stansted

Wed 4/3

06:30-17:20

2 stops16h 50m

£390

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 12/4

19:25-23:25

2 stops22h 00m

London Stansted

Mon 20/4

08:30-18:15

2 stops15h 45m

£391

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 3/3

18:30-21:20

2 stops20h 50m

London Stansted

Tue 10/3

06:30-18:20

2 stops16h 50m

£391

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 23/2

18:30-21:20

2 stops20h 50m

London Stansted

Fri 27/2

06:30-17:20

2 stops16h 50m

£395

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 22/2

21:00-14:50

1 stop11h 50m

London Stansted

Tue 3/3

08:30-19:15

1 stop16h 45m

£396

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 19/4

19:25-22:20

2 stops20h 55m

London Stansted

Wed 29/4

08:30-18:15

2 stops15h 45m

£397

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

Flight times vary depending on what airport in Illinois you fly out of and what airport in London Stansted Airport you fly into. For example, flying from Chicago to London Heathrow Airport takes 9h 30m on average. On the other hand, flying from Peoria to London Heathrow Airport takes 11h 30m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

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

13h 35m

Direct flights

None
The fastest flight from Illinois to London Stansted Airport takes 13h 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 are updated 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Slough
Maidstone
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Wembley
Dover
Folkestone
Colchester
Bedford
Worthing
Ramsgate

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Illinois.

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?

Once you have performed a search for Illinois to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Illinois to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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