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 17m on average. On the other hand, flying from Peoria to London Heathrow Airport takes 11h 20m 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.

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.

£228 Cheap Flights from Illinois to London Stansted Airport in 2026

Find the cheapest flights from Illinois to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:30 - 23:15ORD Chicago O'Hare Intl-STN London Stansted

22h 45m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

05:55 - 17:20STN London Stansted-ORD Chicago O'Hare Intl

17h 25m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£493Multiple Airlines

Fri, 13 Nov - Fri, 20 Nov

19:30 - 23:45ORD Chicago O'Hare Intl-STN London Stansted

22h 15m2 stops Reykjavik Keflavik Intl Glasgow Intl

06:10 - 19:25STN London Stansted-ORD Chicago O'Hare Intl

18h 15m1 stop Dublin

£493Multiple Airlines

Sat, 24 Oct - Wed, 28 Oct

15:45 - 12:50ORD Chicago O'Hare Intl-STN London Stansted

15h 05m1 stop Dublin

08:25 - 17:50STN London Stansted-ORD Chicago O'Hare Intl

39h 25m2 stops Vilnius Helsinki-Vantaa

£494Multiple Airlines

Mon, 28 Sep - Mon, 5 Oct

18:30 - 16:55ORD Chicago O'Hare Intl-STN London Stansted

16h 25m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

08:15 - 17:20STN London Stansted-ORD Chicago O'Hare Intl

15h 05m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£495Multiple Airlines

Sun, 1 Nov - Sun, 8 Nov

19:30 - 17:50ORD Chicago O'Hare Intl-STN London Stansted

17h 20m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

11:35 - 17:20STN London Stansted-ORD Chicago O'Hare Intl

35h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£498Multiple Airlines

Mon, 26 Oct - Mon, 2 Nov

19:25 - 22:20ORD Chicago O'Hare Intl-STN London Stansted

20h 55m2 stops Reykjavik Keflavik Intl Dublin

06:30 - 21:25STN London Stansted-ORD Chicago O'Hare Intl

20h 55m2 stops Dublin Reykjavik Keflavik Intl

£499Multiple Airlines

Tue, 22 Sep - Wed, 30 Sep

18:30 - 15:40ORD Chicago O'Hare Intl-STN London Stansted

15h 10m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

08:15 - 17:20STN London Stansted-ORD Chicago O'Hare Intl

15h 05m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£502Multiple Airlines

Sun, 8 Nov - Tue, 17 Nov

19:15 - 21:35ORD Chicago O'Hare Intl-STN London Stansted

20h 20m2 stops Kastrup Copenhagen Helsinki-Vantaa

15:45 - 16:45STN London Stansted-ORD Chicago O'Hare Intl

31h 00m3 stops Helsinki-Vantaa Stockholm Arlanda Kastrup Copenhagen

£502Multiple Airlines

Sun, 1 Nov - Sun, 8 Nov

19:25 - 00:10ORD Chicago O'Hare Intl-STN London Stansted

22h 45m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

12:45 - 18:15STN London Stansted-ORD Chicago O'Hare Intl

35h 30m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£503Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

19:25 - 00:10ORD Chicago O'Hare Intl-STN London Stansted

22h 45m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

07:10 - 18:15STN London Stansted-ORD Chicago O'Hare Intl

17h 05m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£504Multiple Airlines

Tue, 15 Sep - Tue, 22 Sep

Cheap last-minute flights

Enter your travel dates to find the best prices.

19:25 - 22:55ORD Chicago O'Hare Intl-STN London Stansted

21h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl

22:00 - 16:57STN London Stansted-ORD Chicago O'Hare Intl

24h 57m2 stops Dublin Toronto Pearson Intl

£605Multiple Airlines

Fri, 21 Aug - Fri, 4 Sep

19:25 - 22:55ORD Chicago O'Hare Intl-STN London Stansted

21h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl

22:00 - 16:57STN London Stansted-ORD Chicago O'Hare Intl

24h 57m2 stops Dublin Toronto Pearson Intl

£606Multiple Airlines

Fri, 21 Aug - Fri, 4 Sep

22:25 - 22:55ORD Chicago O'Hare Intl-STN London Stansted

18h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl

06:35 - 20:05STN London Stansted-ORD Chicago O'Hare Intl

19h 30m3 stops Dublin Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

£612Multiple Airlines

Fri, 21 Aug - Fri, 4 Sep

19:50 - 22:25ORD Chicago O'Hare Intl-STN London Stansted

20h 35m2 stops Lisbon Humberto Delgado Dublin

12:00 - 16:00STN London Stansted-ORD Chicago O'Hare Intl

34h 00m2 stops Dublin Lisbon Humberto Delgado

£654Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

22:25 - 22:05ORD Chicago O'Hare Intl-STN London Stansted

17h 40m2 stops Reykjavik Keflavik Intl Glasgow Intl

06:45 - 21:25STN London Stansted-ORD Chicago O'Hare Intl

20h 40m2 stops Glasgow Intl Reykjavik Keflavik Intl

£655Multiple Airlines

Fri, 21 Aug - Sun, 30 Aug

18:00 - 21:30ORD Chicago O'Hare Intl-STN London Stansted

21h 30m2 stops Lisbon Humberto Delgado Barcelona-El Prat

15:30 - 12:40STN London Stansted-ORD Chicago O'Hare Intl

27h 10m2 stops Barcelona-El Prat Lisbon Humberto Delgado

£693Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

08:40 - 14:35ORD Chicago O'Hare Intl-STN London Stansted

23h 55m2 stops Montreal Pierre Elliott Trudeau Intl Kastrup Copenhagen

19:15 - 12:55STN London Stansted-ORD Chicago O'Hare Intl

23h 40m2 stops Kastrup Copenhagen Frankfurt am Main

£704Multiple Airlines

Tue, 18 Aug - Mon, 24 Aug

15:40 - 18:30ORD Chicago O'Hare Intl-STN London Stansted

20h 50m2 stops Montreal Pierre Elliott Trudeau Intl Milan Malpensa

21:20 - 19:55STN London Stansted-ORD Chicago O'Hare Intl

28h 35m2 stops Milan Malpensa Frankfurt am Main

£713Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

15:40 - 20:55ORD Chicago O'Hare Intl-STN London Stansted

23h 15m2 stops Montreal Pierre Elliott Trudeau Intl Milan Malpensa

17:20 - 12:55STN London Stansted-ORD Chicago O'Hare Intl

25h 35m2 stops Milan Malpensa Frankfurt am Main

£718Multiple Airlines

Tue, 18 Aug - Tue, 25 Aug

15:45 - 07:50ORD Chicago O'Hare Intl-STN London Stansted

10h 05m1 stop Dublin

18:20 - 12:40STN London Stansted-ORD Chicago O'Hare Intl

24h 20m2 stops Barcelona-El Prat Lisbon Humberto Delgado

£720Multiple Airlines

Wed, 19 Aug - Wed, 26 Aug

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Turkish Airlines flights from Illinois to London Stansted Airport

Our best Turkish Airlines deals on Illinois to London Stansted Airport flight tickets

Turkish Airlines

23 Sept

STL08:00Lambert-St Louis

50h 40m

2 stops

STN16:40London Stansted

30 Sept

STN17:45London Stansted

33h 36m

2 stops

STL21:21Lambert-St Louis

£869

Turkish Airlines

7 Nov

STL07:30Lambert-St Louis

44h 25m

2 stops

STN09:55London Stansted

23 Nov

STN10:55London Stansted

41h 29m

2 stops

STL22:24Lambert-St Louis

£874

Turkish Airlines

24 Sept

STL08:00Lambert-St Louis

43h 55m

2 stops

STN09:55London Stansted

7 Oct

STN17:45London Stansted

33h 36m

2 stops

STL21:21Lambert-St Louis

£888

momondo Fare Finder

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 return flight

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Fri 13/11

18:30-23:15

2 stops22h 45m

London Stansted

Fri 20/11

05:55-17:20

2 stops17h 25m

£493

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Sat 24/10

19:30-23:45

2 stops22h 15m

London Stansted

Wed 28/10

06:10-19:25

1 stop18h 15m

£493

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Mon 28/9

15:45-12:50

1 stop15h 05m

London Stansted

Mon 5/10

08:25-17:50

2 stops39h 25m

£494

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Sun 1/11

18:30-16:55

2 stops16h 25m

London Stansted

Sun 8/11

08:15-17:20

2 stops15h 05m

£495

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Mon 26/10

19:30-17:50

2 stops17h 20m

London Stansted

Mon 2/11

11:35-17:20

2 stops35h 45m

£498

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Tue 22/9

19:25-22:20

2 stops20h 55m

London Stansted

Wed 30/9

06:30-21:25

2 stops20h 55m

£499

Fastest return journey

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Sun 8/11

18:30-15:40

2 stops15h 10m

London Stansted

Tue 17/11

08:15-17:20

2 stops15h 05m

£502

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Sun 1/11

19:15-21:35

2 stops20h 20m

London Stansted

Sun 8/11

15:45-16:45

3 stops31h 00m

£502

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Tue 8/9

19:25-00:10

2 stops22h 45m

London Stansted

Tue 15/9

12:45-18:15

2 stops35h 30m

£503

ChicagoLondon

ORD Chicago O'Hare Intl - STN London Stansted

ORDSTN

Chicago O'Hare Intl

Tue 15/9

19:25-00:10

2 stops22h 45m

London Stansted

Tue 22/9

07:10-18:15

2 stops17h 05m

£504

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Airlines

Other information

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

Lufthansa and Turkish Airlines are the most popular carriers 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 05m
Direct flights	None

The fastest flight from Illinois to London Stansted Airport takes 14h 05m

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

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 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.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Chichester

Hayes

Guildford

Bedford

Harlow

Colchester

Chelmsford

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.