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Cheap flights from Chicago to London from £255

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to London departing on 27/2. 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
19:25 - 22:40
ORD
-
STN
21h 15m
3 stops
Multiple Airlines Logo
22:45 - 17:50
STN
-
ORD
25h 05m
2 stops
£403Multiple Airlines
Wed, 22 Apr - Wed, 29 Apr
Multiple Airlines Logo
19:25 - 00:55
ORD
-
STN
23h 30m
3 stops
Multiple Airlines Logo
06:30 - 19:25
STN
-
ORD
18h 55m
2 stops
£404Multiple Airlines
Wed, 8 Apr - Tue, 14 Apr
Multiple Airlines Logo
19:25 - 22:20
ORD
-
STN
20h 55m
2 stops
Multiple Airlines Logo
06:30 - 18:15
STN
-
ORD
17h 45m
2 stops
£407Multiple Airlines
Tue, 7 Apr - Wed, 15 Apr
Multiple Airlines Logo
19:25 - 22:25
ORD
-
STN
21h 00m
3 stops
Multiple Airlines Logo
06:30 - 17:50
STN
-
ORD
17h 20m
2 stops
£408Multiple Airlines
Tue, 7 Apr - Tue, 14 Apr
Multiple Airlines Logo
21:00 - 21:20
ORD
-
STN
18h 20m
1 stop
Multiple Airlines Logo
22:45 - 14:00
STN
-
ORD
21h 15m
1 stop
£408Multiple Airlines
Mon, 6 Apr - Mon, 13 Apr
Multiple Airlines Logo
19:25 - 22:05
ORD
-
STN
20h 40m
2 stops
Multiple Airlines Logo
22:00 - 19:25
STN
-
ORD
27h 25m
2 stops
£409Multiple Airlines
Wed, 22 Apr - Tue, 28 Apr
Multiple Airlines Logo
21:00 - 17:50
ORD
-
STN
14h 50m
1 stop
Multiple Airlines Logo
11:30 - 18:55
STN
-
ORD
12h 25m
1 stop
£410Multiple Airlines
Wed, 4 Mar - Mon, 9 Mar
Multiple Airlines Logo
19:25 - 23:20
ORD
-
STN
21h 55m
2 stops
Multiple Airlines Logo
06:30 - 18:15
STN
-
ORD
17h 45m
2 stops
£411Multiple Airlines
Thu, 7 May - Tue, 12 May
Multiple Airlines Logo
19:25 - 00:20
ORD
-
STN
22h 55m
2 stops
Multiple Airlines Logo
06:35 - 18:48
STN
-
ORD
18h 13m
2 stops
£411Multiple Airlines
Mon, 13 Apr - Sat, 18 Apr
Multiple Airlines Logo
19:25 - 17:10
ORD
-
STN
15h 45m
2 stops
Multiple Airlines Logo
07:05 - 18:15
STN
-
ORD
17h 10m
2 stops
£412Multiple Airlines
Wed, 15 Apr - Sun, 19 Apr

momondo Fare Finder

 
Customise your flight search to find flights from Chicago 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 21 February 2026.
Use the filters below to find and compare flights from Chicago 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

Wed 22/4

19:25-22:40

3 stops21h 15m

London Stansted

Wed 29/4

22:45-17:50

2 stops25h 05m

£403

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 8/4

19:25-00:55

3 stops23h 30m

London Stansted

Tue 14/4

06:30-19:25

2 stops18h 55m

£404

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 7/4

19:25-22:20

2 stops20h 55m

London Stansted

Wed 15/4

06:30-18:15

2 stops17h 45m

£407

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 7/4

19:25-22:25

3 stops21h 00m

London Stansted

Tue 14/4

06:30-17:50

2 stops17h 20m

£408

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 6/4

21:00-21:20

1 stop18h 20m

London Stansted

Mon 13/4

22:45-14:00

1 stop21h 15m

£408

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 22/4

19:25-22:05

2 stops20h 40m

London Stansted

Tue 28/4

22:00-19:25

2 stops27h 25m

£409

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 4/3

21:00-17:50

1 stop14h 50m

London Stansted

Mon 9/3

11:30-18:55

1 stop12h 25m

£410

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 7/5

19:25-23:20

2 stops21h 55m

London Stansted

Tue 12/5

06:30-18:15

2 stops17h 45m

£411

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 13/4

19:25-00:20

2 stops22h 55m

London Stansted

Sat 18/4

06:35-18:48

2 stops18h 13m

£411

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 15/4

19:25-17:10

2 stops15h 45m

London Stansted

Sun 19/4

07:05-18:15

2 stops17h 10m

£412

Flights are sorted by cheapest return 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 Chicago 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 often are flights from Chicago to London delayed?

Historically, on average around 100% of flights between Chicago and London have experienced a delay on any given week. The average delay length over the past 12 months has been 56 minutes.

What is the most punctual flight time for Chicago to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Chicago to London flights?

According to our data, Atlas Air have had the fewest delays on this route over the last 12 months, with about 100% of their flights experiencing any sort of delay.

When to book flights from Chicago to London Stansted Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to London Stansted Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago to London Stansted Airport (CHI to STN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to London Stansted Airport

Fastest flight time

10h 05m

Direct flights

None
The fastest flight from Chicago to London Stansted Airport takes 10h 05m
There are no direct flights from Chicago to London Stansted Airport. There are no popular flight routes from Chicago to London Stansted Airport.
Search flight deals

  • How far is Chicago to London Stansted by plane?

    London Stansted is 3946.5 mi away from Chicago. A reasonable flight in good conditions will take 10h 05m.

  • When did momondo last update prices for flights from Chicago to London Stansted Airport?

    Prices for flights from Chicago to London Stansted Airport refresh daily.

  • How old do you have to be to fly from Chicago 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 Chicago 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
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Wembley
Dover
Folkestone
Colchester
Worthing
Bedford
Ramsgate

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to London. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to London with flexible booking policies on momondo?

Flights from Chicago to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to London?

momondo helps you find the best flight between Chicago 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 Chicago to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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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