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Cheap flights from London Stansted Airport to Illinois from £354

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 24/5. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
13 Apr — 20 Apr1
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 14 March 2026.

Thu 23/407:00
STN
-
ORD
2 stops17h 15m
Multiple Airlines
Thu 30/419:25
ORD
-
STN
2 stops21h 30m
Multiple Airlines
Deal found 9/3£435
Wed 8/415:00
STN
-
ORD
2 stops33h 15m
Multiple Airlines
Sun 12/422:25
ORD
-
STN
2 stops18h 55m
Multiple Airlines
Deal found 8/3£462
Thu 23/406:30
STN
-
ORD
2 stops17h 45m
Multiple Airlines
Sun 26/419:25
ORD
-
STN
2 stops15h 25m
Multiple Airlines
Deal found 10/3£468
Tue 2/617:10
STN
-
ORD
2 stops30h 40m
Multiple Airlines
Mon 3/815:45
ORD
-
STN
1 stop15h 05m
Multiple Airlines
Deal found 9/3£471
Tue 2/617:10
STN
-
ORD
2 stops30h 40m
Multiple Airlines
Tue 4/815:45
ORD
-
STN
1 stop12h 05m
Multiple Airlines
Deal found 9/3£474
Fri 24/415:20
STN
-
ORD
2 stops29h 50m
Multiple Airlines
Fri 1/521:50
ORD
-
STN
2 stops19h 05m
Multiple Airlines
Deal found 9/3£476
Sat 25/408:35
STN
-
ORD
2 stops15h 40m
Multiple Airlines
Sat 2/519:25
ORD
-
STN
2 stops22h 40m
Multiple Airlines
Deal found 11/3£478
Wed 3/607:00
STN
-
ORD
2 stops16h 50m
Multiple Airlines
Mon 3/815:45
ORD
-
STN
1 stop15h 05m
Multiple Airlines
Deal found 9/3£480
Fri 29/506:20
STN
-
ORD
2 stops17h 30m
Multiple Airlines
Mon 3/815:45
ORD
-
STN
1 stop15h 05m
Multiple Airlines
Deal found 9/3£482
Fri 29/506:20
STN
-
ORD
2 stops17h 30m
Multiple Airlines
Tue 4/815:45
ORD
-
STN
1 stop12h 05m
Multiple Airlines
Deal found 9/3£483
Tue 12/521:20
STN
-
STL
2 stops22h 05m
Multiple Airlines
Wed 20/507:05
STL
-
STN
3 stops24h 40m
Multiple Airlines
Deal found 13/3£979
Mon 27/410:50
STN
-
STL
2 stops40h 23m
Turkish Airlines
Wed 15/706:00
STL
-
STN
2 stops28h 40m
Turkish Airlines
Deal found 10/3£1,016

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 14 March 2026.

Round-trip from

£435

One-way from

£354

Popular in

July

Cheapest in

September

Average price

£549
23/4-30/4
  • 23/4-30/4
  • 4 total stops
  • 38h 45m total
  • London to Illinois
Search Deals
24/5
  • 24/5
  • 3 total stops
  • 35h 55m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£57 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 March 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 14 March 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

Wed 3/6

22:45-18:15

2 stops25h 30m

Chicago O'Hare Intl

Fri 11/9

19:15-12:40

1 stop11h 25m

£635
Fastest return journey

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 7/7

06:55-18:15

1 stop17h 20m

Chicago O'Hare Intl

Tue 14/7

11:25-09:55

1 stop16h 30m

£651

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 3/7

17:35-18:15

1 stop30h 40m

Chicago O'Hare Intl

Sat 25/7

11:25-09:55

1 stop16h 30m

£674

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 9/9

10:50-18:15

1 stop37h 25m

Chicago O'Hare Intl

Wed 23/9

20:10-16:40

1 stop38h 30m

£777

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 17/4

17:35-18:15

1 stop30h 40m

Chicago O'Hare Intl

Sun 19/4

20:10-22:10

1 stop20h 00m

£779

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Mon 20/4

10:50-21:13

2 stops40h 23m

Lambert-St Louis

Thu 30/4

07:45-09:55

2 stops20h 10m

£1,053

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 22/4

06:55-21:13

2 stops20h 18m

Lambert-St Louis

Tue 28/4

07:45-16:40

2 stops50h 55m

£1,099

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Fri 17/7

22:50-14:02

2 stops21h 12m

Lambert-St Louis

Fri 7/8

12:10-19:20

2 stops25h 10m

£1,105

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Tue 5/5

06:55-21:13

2 stops20h 18m

Lambert-St Louis

Sat 9/5

07:45-16:40

2 stops26h 55m

£1,189

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 8/4

10:50-21:13

2 stops40h 23m

Lambert-St Louis

Tue 5/5

07:45-16:50

2 stops27h 05m

£1,199

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 33 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.
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Stansted to Miami flights
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London City to Miami flights
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London City to Orlando flights
Luton to Los Angeles flights
Heathrow to Midway flights
Gatwick to O'Hare Intl flights
Gatwick to San Francisco flights
Stansted to San Francisco flights
Heathrow to Austin flights
Gatwick to Las Vegas flights
Stansted 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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