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Cheap flights from London Stansted Airport to Illinois from £317

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
16 Jul — 23 Jul1
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 16 June 2026.

Wed 23/921:30
STN
-
ORD
2 stops29h 50m
Multiple Airlines
Sun 27/922:25
ORD
-
STN
2 stops19h 15m
Multiple Airlines
Deal found 16/6£564
Tue 1/917:20
STN
-
ORD
2 stops34h 05m
Multiple Airlines
Tue 8/908:45
ORD
-
STN
3 stops31h 55m
Multiple Airlines
Deal found 12/6£567
Tue 1/908:20
STN
-
ORD
2 stops17h 35m
Multiple Airlines
Fri 11/914:20
ORD
-
STN
2 stops20h 35m
Multiple Airlines
Deal found 12/6£568
Sat 5/919:05
STN
-
ORD
2 stops26h 55m
Multiple Airlines
Sat 12/919:25
ORD
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 14/6£569
Wed 21/1008:30
STN
-
ORD
1 stop16h 45m
Multiple Airlines
Sat 31/1016:55
ORD
-
STN
1 stop11h 40m
Multiple Airlines
Deal found 15/6£570
Tue 14/706:30
STN
-
ORD
2 stops19h 22m
Multiple Airlines
Tue 21/722:25
ORD
-
STN
2 stops18h 15m
Multiple Airlines
Deal found 14/6£570
Thu 1/1018:55
STN
-
ORD
2 stops28h 55m
Multiple Airlines
Mon 5/1015:45
ORD
-
STN
1 stop10h 05m
Multiple Airlines
Deal found 16/6£571
Fri 9/1007:35
STN
-
ORD
2 stops19h 50m
Multiple Airlines
Mon 12/1019:25
ORD
-
STN
2 stops16h 50m
Multiple Airlines
Deal found 15/6£572
Mon 5/1020:50
STN
-
ORD
2 stops28h 25m
Multiple Airlines
Wed 14/1019:25
ORD
-
STN
2 stops18h 55m
Multiple Airlines
Deal found 13/6£573
Thu 2/706:05
STN
-
ORD
2 stops16h 52m
Multiple Airlines
Sun 26/722:25
ORD
-
STN
2 stops19h 15m
Multiple Airlines
Deal found 12/6£576
Wed 11/1108:40
STN
-
ORD
2 stops14h 40m
Multiple Airlines
Tue 17/1118:30
ORD
-
STN
2 stops17h 35m
Multiple Airlines
Deal found 11/6£576
Mon 13/722:25
STN
-
STL
3 stops27h 57m
Multiple Airlines
Mon 20/714:40
STL
-
STN
2 stops18h 35m
Multiple Airlines
Deal found 13/6£788

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 16 June 2026.

Round-trip from

£564

One-way from

£317

Popular in

July

Cheapest in

February

Average price

£656
23/9-27/9
  • 23/9-27/9
  • 4 total stops
  • 49h 05m total
  • London to Illinois
Search Deals
28/9
  • 28/9
  • 3 total stops
  • 29h 50m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£76 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 16 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

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 9/7

06:05-16:57

2 stops16h 52m

Chicago O'Hare Intl

Thu 16/7

15:45-21:20

2 stops23h 35m

£625

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

£679

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

£681

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 30/9

06:55-09:40

1 stop32h 45m

Chicago O'Hare Intl

Sat 10/10

11:25-16:40

1 stop23h 15m

£681

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 26/10

10:55-11:00

1 stop29h 05m

Chicago O'Hare Intl

Mon 9/11

11:45-16:20

1 stop22h 35m

£689

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

£694

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 16/9

17:45-18:15

1 stop30h 30m

Chicago O'Hare Intl

Wed 23/9

11:25-16:40

1 stop23h 15m

£724

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 9/9

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Wed 23/9

20:10-09:55

1 stop31h 45m

£826
Fastest return journey

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 14/10

06:55-18:15

1 stop17h 20m

Chicago O'Hare Intl

Wed 28/10

12:45-16:20

1 stop22h 35m

£846

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 8/7

19:10-14:02

2 stops24h 52m

Lambert-St Louis

Fri 17/7

14:40-23:45

3 stops27h 05m

£986

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 39 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 32h 45m. 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.
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Gatwick to LaGuardia flights
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Gatwick to Miami flights
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Heathrow to Denver flights
London City to Orlando flights
Stansted to Boston flights
Gatwick to San Francisco flights
Luton to Los Angeles flights
London City to San Francisco flights
Gatwick to Dallas/Fort Worth flights
Stansted to San Francisco flights
Stansted to LaGuardia flights
Heathrow to Detroit flights
Heathrow to Nashville flights
Gatwick to O'Hare Intl flights

Fly with Cheapflights

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

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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.

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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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