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Cheap flights from Chicago O'Hare Intl Airport to London from £174

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 O'Hare Intl Airport to London departing on 24/10. 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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0 bags
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Find the cheapest flights from Chicago O'Hare Intl Airport to London

Cheap return flights

Multiple Airlines Logo
18:30 - 14:20ORD-STN
13h 50m2 stops
Multiple Airlines Logo
06:30 - 17:20STN-ORD
16h 50m2 stops
£370Multiple Airlines
Find Deal
Mon, 1 Dec - Sun, 14 Dec
Multiple Airlines Logo
10:40 - 13:50ORD-STN
21h 10m2 stops
Multiple Airlines Logo
21:20 - 17:20STN-ORD
25h 00m2 stops
£371Multiple Airlines
Find Deal
Wed, 22 Oct - Tue, 28 Oct
Multiple Airlines Logo
18:30 - 20:35ORD-STN
20h 05m2 stops
Multiple Airlines Logo
21:00 - 17:20STN-ORD
26h 20m2 stops
£372Multiple Airlines
Find Deal
Fri, 5 Dec - Sat, 13 Dec
Multiple Airlines Logo
15:35 - 20:55ORD-STN
23h 20m2 stops
Multiple Airlines Logo
07:40 - 20:00STN-ORD
18h 20m2 stops
£374Multiple Airlines
Find Deal
Wed, 5 Nov - Tue, 11 Nov
Multiple Airlines Logo
18:30 - 21:05ORD-STN
20h 35m2 stops
Multiple Airlines Logo
06:30 - 17:20STN-ORD
16h 50m2 stops
£375Multiple Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
Multiple Airlines Logo
08:40 - 19:25ORD-STN
28h 45m2 stops
Multiple Airlines Logo
16:35 - 15:55STN-ORD
29h 20m2 stops
£376Multiple Airlines
Find Deal
Tue, 30 Sep - Mon, 6 Oct
Multiple Airlines Logo
18:30 - 17:50ORD-STN
17h 20m2 stops
Multiple Airlines Logo
06:30 - 17:20STN-ORD
16h 50m2 stops
£377Multiple Airlines
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Multiple Airlines Logo
14:00 - 12:00ORD-STN
16h 00m2 stops
Multiple Airlines Logo
21:45 - 20:17STN-ORD
28h 32m2 stops
£377Multiple Airlines
Find Deal
Tue, 14 Oct - Tue, 21 Oct
Multiple Airlines Logo
18:30 - 18:30ORD-STN
18h 00m2 stops
Multiple Airlines Logo
05:55 - 17:20STN-ORD
17h 25m2 stops
£378Multiple Airlines
Find Deal
Fri, 7 Nov - Fri, 14 Nov
Multiple Airlines Logo
18:30 - 20:55ORD-STN
20h 25m2 stops
Multiple Airlines Logo
21:20 - 17:20STN-ORD
26h 00m2 stops
£379Multiple Airlines
Find Deal
Wed, 26 Nov - Mon, 1 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport 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 18 September 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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

Mon 1/12

18:30-14:20

2 stops13h 50m

London Stansted

Sun 14/12

06:30-17:20

2 stops16h 50m

£370

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 22/10

10:40-13:50

2 stops21h 10m

London Stansted

Tue 28/10

21:20-17:20

2 stops25h 00m

£371

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 5/12

18:30-20:35

2 stops20h 05m

London Stansted

Sat 13/12

21:00-17:20

2 stops26h 20m

£372

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 5/11

15:35-20:55

2 stops23h 20m

London Stansted

Tue 11/11

07:40-20:00

2 stops18h 20m

£374

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 5/11

18:30-21:05

2 stops20h 35m

London Stansted

Mon 10/11

06:30-17:20

2 stops16h 50m

£375

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 30/9

08:40-19:25

2 stops28h 45m

London Stansted

Mon 6/10

16:35-15:55

2 stops29h 20m

£376

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 3/12

18:30-17:50

2 stops17h 20m

London Stansted

Sun 7/12

06:30-17:20

2 stops16h 50m

£377

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 14/10

14:00-12:00

2 stops16h 00m

London Stansted

Tue 21/10

21:45-20:17

2 stops28h 32m

£377

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 7/11

18:30-18:30

2 stops18h 00m

London Stansted

Fri 14/11

05:55-17:20

2 stops17h 25m

£378

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 26/11

18:30-20:55

2 stops20h 25m

London Stansted

Mon 1/12

21:20-17:20

2 stops26h 00m

£379

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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When to book flights from Chicago O'Hare Intl Airport to London Stansted Airport

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

Cheap Chicago O'Hare Intl Airport to London Stansted Airport (ORD to STN) flight deals and tips

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

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to London Stansted Airport. There are no popular flight routes from Chicago O'Hare Intl Airport to London Stansted Airport.
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  • How far is Chicago O'Hare Intl to London Stansted by plane?

    London Stansted is 3952.0 mi away from Chicago O'Hare Intl. In terms of flight time, this usually takes a little over 10h 00m.

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

    Prices for flights from Chicago O'Hare Intl Airport to London Stansted Airport were last updated today.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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.

  • How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to London Stansted Airport?

    Search flight deals from Chicago O'Hare Intl Airport to London Stansted Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Chicago O'Hare Intl Airport to London Stansted Airport with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Southend-on-Sea
Ipswich
Ilford
Guildford
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Worthing
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Dartford
Winchester
Hounslow
Stansted

Why use momondo?

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

It is quick and easy to find Chicago to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

All flight searches from Chicago to London on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Chicago 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 Chicago 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 Chicago and alert you when they change.

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