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Cheap flights from Chicago to London from $379

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 3/21. 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 Chicago to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 pm - 7:35 pm
ORD
-
STN
19h 05m2 stops
Multiple Airlines Logo
6:30 am - 5:20 pm
STN
-
ORD
16h 50m2 stops
$546Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
6:30 pm - 9:20 pm
ORD
-
STN
20h 50m2 stops
Multiple Airlines Logo
8:30 am - 5:20 pm
STN
-
ORD
14h 50m2 stops
$549Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
7:20 pm - 11:35 pm
ORD
-
STN
22h 15m2 stops
Multiple Airlines Logo
11:30 am - 4:45 pm
STN
-
ORD
35h 15m2 stops
$550Multiple Airlines
Thu, Feb 5 - Thu, Feb 12
Multiple Airlines Logo
6:30 pm - 10:05 pm
ORD
-
STN
21h 35m2 stops
Multiple Airlines Logo
6:00 am - 5:20 pm
STN
-
ORD
17h 20m2 stops
$560Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
7:10 pm - 6:10 pm
ORD
-
STN
17h 00m1 stop
Multiple Airlines Logo
6:30 am - 3:00 pm
STN
-
ORD
14h 30m1 stop
$578Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
3:35 pm - 4:55 pm
ORD
-
STN
19h 20m2 stops
Multiple Airlines Logo
1:55 pm - 4:20 pm
STN
-
ORD
32h 25m2 stops
$582Multiple Airlines
Mon, Jan 12 - Mon, Jan 19
Multiple Airlines Logo
12:50 pm - 7:40 pm
ORD
-
STN
24h 50m2 stops
Multiple Airlines Logo
7:55 pm - 2:55 pm
STN
-
ORD
25h 00m3 stops
$583Multiple Airlines
Wed, Jan 14 - Mon, Jan 19
Multiple Airlines Logo
9:00 pm - 6:20 pm
ORD
-
STN
15h 20m1 stop
Multiple Airlines Logo
12:00 pm - 7:15 pm
STN
-
ORD
13h 15m1 stop
$585Multiple Airlines
Mon, Jan 19 - Fri, Jan 30
Multiple Airlines Logo
5:40 pm - 11:30 am
ORD
-
STN
11h 50m1 stop
Multiple Airlines Logo
5:55 am - 2:55 pm
STN
-
ORD
15h 00m1 stop
$591Multiple Airlines
Tue, Feb 24 - Wed, Mar 4
Multiple Airlines Logo
6:30 pm - 9:05 pm
ORD
-
STN
20h 35m2 stops
Multiple Airlines Logo
8:30 am - 5:20 pm
STN
-
ORD
14h 50m2 stops
$595Multiple Airlines
Wed, Jan 7 - Sat, Jan 17

Turkish Airlines flights from Chicago to London Stansted Airport

Our best Turkish Airlines deals on Chicago to London Stansted Airport flight tickets
Turkish Airlines
Mar 18
ORD12:50 pmChicago O'Hare Intl
22h 30m
1 stop
STN4:20 pmLondon Stansted
Mar 24
STN5:20 pmLondon Stansted
31h 05m
1 stop
ORD7:25 pmChicago O'Hare Intl
$626
Find similar
Turkish Airlines
Apr 8
ORD7:50 pmChicago O'Hare Intl
20h 20m
1 stop
STN10:10 pmLondon Stansted
Apr 15
STN5:45 pmLondon Stansted
21h 55m
1 stop
ORD9:40 amChicago O'Hare Intl
$638
Find similar
Turkish Airlines
Apr 7
ORD11:25 amChicago O'Hare Intl
23h 25m
1 stop
STN4:50 pmLondon Stansted
May 12
STN6:15 amLondon Stansted
33h 25m
1 stop
ORD9:40 amChicago O'Hare Intl
$642
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated December 23, 2025.
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 1/14

6:30 pm-7:35 pm

2 stops19h 05m

London Stansted

Wed 1/21

6:30 am-5:20 pm

2 stops16h 50m

$546

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 1/19

6:30 pm-9:20 pm

2 stops20h 50m

London Stansted

Mon 1/26

8:30 am-5:20 pm

2 stops14h 50m

$549

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 2/5

7:20 pm-11:35 pm

2 stops22h 15m

London Stansted

Thu 2/12

11:30 am-4:45 pm

2 stops35h 15m

$550

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 1/19

6:30 pm-10:05 pm

2 stops21h 35m

London Stansted

Mon 1/26

6:00 am-5:20 pm

2 stops17h 20m

$560

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 1/14

7:10 pm-6:10 pm

1 stop17h 00m

London Stansted

Wed 1/21

6:30 am-3:00 pm

1 stop14h 30m

$578

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 1/12

3:35 pm-4:55 pm

2 stops19h 20m

London Stansted

Mon 1/19

1:55 pm-4:20 pm

2 stops32h 25m

$582

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 1/14

12:50 pm-7:40 pm

2 stops24h 50m

London Stansted

Mon 1/19

7:55 pm-2:55 pm

3 stops25h 00m

$583

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 1/19

9:00 pm-6:20 pm

1 stop15h 20m

London Stansted

Fri 1/30

12:00 pm-7:15 pm

1 stop13h 15m

$585

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 2/24

5:40 pm-11:30 am

1 stop11h 50m

London Stansted

Wed 3/4

5:55 am-2:55 pm

1 stop15h 00m

$591

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 1/7

6:30 pm-9:05 pm

2 stops20h 35m

London Stansted

Sat 1/17

8:30 am-5:20 pm

2 stops14h 50m

$595

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 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 50% 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 24 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 in the morning have, in the past, seen delays more frequently in comparison.

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

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

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 round-trip 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

12h 05m

Direct flights

None
The fastest flight from Chicago to London Stansted Airport takes 12h 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. 12h 05m is a normal flight duration for this route.

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

    Prices for flights from Chicago to London Stansted Airport were last updated today.

  • How old do you have to be to fly from Chicago to London Stansted Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

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
Wembley
Watford
Ilford
Cobham
Folkestone
Romford
Richmond
Uxbridge
Stansted

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 provides multiple filters to help you find the best flight to London from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Chicago to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Stansted Airport trip

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