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Cheap flights from London Stansted Airport to Illinois from £370

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
28 Jul — 4 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Illinois
Explore the most affordable flight options available from Stansted to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 June 2026.

Fri 4/908:30
STN
-
ORD
2 stops17h 22m
Multiple Airlines
Sat 12/919:25
ORD
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 27/6£524
Mon 21/920:45
STN
-
ORD
2 stops22h 25m
Multiple Airlines
Fri 2/1015:00
ORD
-
STN
2 stops22h 25m
Multiple Airlines
Deal found 28/6£526
Sun 20/907:25
STN
-
ORD
2 stops20h 00m
Multiple Airlines
Thu 22/419:25
ORD
-
STN
2 stops22h 10m
Multiple Airlines
Deal found 26/6£532
Sat 22/806:35
STN
-
ORD
3 stops19h 17m
Multiple Airlines
Wed 9/922:25
ORD
-
STN
2 stops15h 55m
Multiple Airlines
Deal found 25/6£533
Fri 21/822:50
STN
-
ORD
3 stops27h 02m
Multiple Airlines
Thu 3/915:45
ORD
-
STN
2 stops25h 35m
Multiple Airlines
Deal found 27/6£534
Mon 17/822:45
STN
-
ORD
3 stops27h 20m
Multiple Airlines
Sat 5/919:25
ORD
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 26/6£535
Tue 15/917:20
STN
-
ORD
2 stops30h 55m
Multiple Airlines
Thu 1/1019:25
ORD
-
STN
2 stops21h 10m
Multiple Airlines
Deal found 27/6£535
Sun 23/822:00
STN
-
ORD
3 stops30h 05m
Multiple Airlines
Tue 8/908:45
ORD
-
STN
3 stops31h 55m
Multiple Airlines
Deal found 28/6£538
Wed 19/806:30
STN
-
ORD
3 stops19h 22m
Multiple Airlines
Thu 27/809:45
ORD
-
STN
3 stops29h 35m
Multiple Airlines
Deal found 28/6£538
Thu 27/822:00
STN
-
STL
2 stops28h 24m
Multiple Airlines
Thu 17/908:55
STL
-
STN
3 stops21h 00m
Multiple Airlines
Deal found 28/6£744
Thu 27/822:00
STN
-
STL
2 stops28h 24m
Multiple Airlines
Mon 31/814:40
STL
-
STN
2 stops24h 40m
Multiple Airlines
Deal found 25/6£769
Wed 12/822:45
STN
-
STL
3 stops46h 53m
Multiple Airlines
Fri 21/812:10
STL
-
STN
2 stops18h 30m
Multiple Airlines
Deal found 28/6£781

Find flight deals from Stansted to Illinois

Keep the following information in mind while searching for Stansted to Illinois flight deals. Data was last updated 28 June 2026.

Round-trip from

£524

One-way from

£370

Popular in

July

Cheapest in

February

Average price

£682
4/9-12/9
  • 4/9-12/9
  • 4 total stops
  • 39h 02m total
  • London to Illinois
Search Deals
21/9
  • 21/9
  • 3 total stops
  • 57h 20m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£82 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to Illinois 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, Cheapflights users made 858,174 searches. Data last updated 28 June 2026.
Use the filters below to find and compare flights from London Stansted Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 7/10

06:55-18:15

1 stop17h 20m

Chicago O'Hare Intl

Wed 21/10

20:10-22:10

1 stop20h 00m

£671

LondonChicago

STN - ORD

STNORD

London Stansted

Sun 20/9

06:55-09:40

1 stop32h 45m

Chicago O'Hare Intl

Tue 13/10

20:10-16:40

1 stop38h 30m

£682

LondonChicago

STN - ORD

STNORD

London Stansted

Sat 10/10

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Thu 15/10

20:10-16:50

1 stop38h 40m

£683

LondonChicago

STN - ORD

STNORD

London Stansted

Sat 21/11

17:20-18:20

1 stop31h 00m

Chicago O'Hare Intl

Sat 28/11

11:45-16:20

1 stop22h 35m

£695

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 8/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Tue 13/10

11:25-16:50

1 stop23h 25m

£696

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Thu 27/8

22:00-20:24

2 stops28h 24m

Lambert-St Louis

Thu 17/9

12:10-11:55

2 stops17h 45m

£751

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 16/9

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Wed 23/9

20:10-22:10

1 stop20h 00m

£751

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 12/8

22:45-15:38

3 stops46h 53m

Lambert-St Louis

Fri 21/8

12:10-12:40

2 stops18h 30m

£781

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 26/8

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Sat 3/10

20:10-09:55

1 stop31h 45m

£786

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 9/9

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Wed 23/9

20:10-16:40

1 stop38h 30m

£827

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 35 resultsSorted by cheapest first
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Best time to book a flight from Stansted to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Stansted with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Stansted Airport to Illinois
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Stansted to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Stansted Airport to Illinois?

    Departing from London Stansted Airport to Illinois will take you 17h 20m. The distance from London Stansted Airport to Illinois is about 3952 mi.

  • Can I find deals for flights from Stansted to Illinois that include hotel bookings?

    Yes. In addition to deals on Stansted to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Stansted to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Illinois.

  • Can I find deals for business class flights from Stansted to Illinois?

    Yes. Cheapflights offers flight deals from Stansted to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Stansted to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
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Gatwick to Newark flights
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London City to John F Kennedy Intl flights
Heathrow to Los Angeles flights
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Heathrow to Miami flights
Luton to John F Kennedy Intl flights
Heathrow to Boston flights
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Heathrow to San Francisco flights
Heathrow to Dallas/Fort Worth flights
London City to Newark flights
Stansted to Newark flights
Heathrow to Dulles Intl flights
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Heathrow to O'Hare Intl flights
Stansted to Orlando flights
Gatwick to Los Angeles flights
Heathrow to Baltimore flights
Heathrow to Atlanta flights
London City to Los Angeles flights
Stansted to Los Angeles flights
Gatwick to Miami flights
Heathrow to Seattle flights
Heathrow to George Bush Intcntl flights
Stansted to Miami flights
London City to Miami flights
London City to Orlando flights
Heathrow to Tampa flights
Gatwick to Boston flights
Heathrow to Ontario flights
Stansted to Dulles Intl flights
Gatwick to San Francisco flights
Heathrow to Denver flights
London City to Boston flights
Stansted to San Francisco flights
Luton to Miami flights
Gatwick to Dulles Intl flights
Gatwick to Dallas/Fort Worth flights
London City to San Francisco flights
Heathrow to Sky Harbor Intl flights
Luton to Los Angeles flights
Stansted to Boston flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Stansted to Illinois?

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Millions of users choose and trust Cheapflights to book the best flight deals from Stansted to Illinois for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Stansted to Illinois with no change fees?

Certainly. Search results for flights to Illinois from Stansted shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Stansted to Illinois become cheaper?

Not ready to book yet? You can track prices for flights from Stansted to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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