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Cheap flights from London Stansted Airport to Illinois from £312

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
13 Aug — 20 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 14 July 2026.

Fri 25/906:35
STN
-
ORD
3 stops33h 42m
Multiple Airlines
Sun 25/1019:30
ORD
-
STN
2 stops21h 25m
Multiple Airlines
Deal found 9/7£520
Sun 23/820:00
STN
-
ORD
2 stops31h 20m
Multiple Airlines
Sun 30/819:25
ORD
-
STN
2 stops22h 00m
Multiple Airlines
Deal found 9/7£524
Wed 19/822:45
STN
-
ORD
3 stops29h 20m
Multiple Airlines
Wed 26/819:25
ORD
-
STN
2 stops18h 55m
Multiple Airlines
Deal found 10/7£525
Tue 15/922:00
STN
-
ORD
2 stops27h 48m
Multiple Airlines
Thu 24/909:50
ORD
-
STN
3 stops29h 30m
Multiple Airlines
Deal found 8/7£526
Wed 2/922:45
STN
-
ORD
1 stop21h 15m
Multiple Airlines
Sun 6/915:45
ORD
-
STN
1 stop10h 05m
Multiple Airlines
Deal found 10/7£526
Wed 21/1008:30
STN
-
ORD
1 stop16h 45m
Multiple Airlines
Wed 28/1016:55
ORD
-
STN
1 stop9h 55m
Multiple Airlines
Deal found 9/7£527
Wed 16/906:30
STN
-
ORD
1 stop13h 30m
Multiple Airlines
Mon 21/915:45
ORD
-
STN
1 stop10h 05m
Multiple Airlines
Deal found 9/7£528
Tue 1/906:30
STN
-
ORD
1 stop13h 30m
Multiple Airlines
Tue 8/921:00
ORD
-
STN
1 stop14h 35m
Multiple Airlines
Deal found 12/7£529
Sat 5/911:10
STN
-
ORD
1 stop14h 05m
Multiple Airlines
Sun 13/921:00
ORD
-
STN
1 stop20h 25m
Multiple Airlines
Deal found 13/7£529
Thu 3/906:30
STN
-
ORD
3 stops36h 52m
Multiple Airlines
Wed 16/909:50
ORD
-
STN
3 stops29h 30m
Multiple Airlines
Deal found 11/7£530
Fri 25/906:35
STN
-
ORD
1 stop13h 25m
Multiple Airlines
Mon 28/921:00
ORD
-
STN
1 stop14h 05m
Multiple Airlines
Deal found 8/7£531
Wed 2/906:30
STN
-
ORD
1 stop13h 30m
Multiple Airlines
Wed 9/915:45
ORD
-
STN
1 stop10h 05m
Multiple Airlines
Deal found 8/7£532

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 July 2026.

Round-trip from

£520

One-way from

£312

Popular in

July

Cheapest in

February

Average price

£700
25/9-25/10
  • 25/9-25/10
  • 5 total stops
  • 55h 07m total
  • London to Illinois
Search Deals
21/9
  • 21/9
  • 3 total stops
  • 29h 35m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£78 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 July 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 July 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 29/7

06:30-21:25

2 stops20h 55m

Chicago O'Hare Intl

Mon 3/8

19:25-17:05

2 stops15h 40m

£605

LondonChicago

STN - ORD

STNORD

London Stansted

Sat 10/10

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Thu 15/10

20:10-16:50

1 stop38h 40m

£678

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 30/9

17:45-18:15

1 stop30h 30m

Chicago O'Hare Intl

Sat 10/10

11:25-16:40

1 stop23h 15m

£679

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 28/10

10:55-19:20

1 stop37h 25m

Chicago O'Hare Intl

Sun 15/11

11:45-09:55

1 stop16h 10m

£680

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 9/9

06:55-09:40

1 stop32h 45m

Chicago O'Hare Intl

Sun 27/9

11:25-09:55

1 stop16h 30m

£778

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 1/9

17:35-18:15

1 stop30h 40m

Chicago O'Hare Intl

Tue 8/9

20:10-16:40

1 stop38h 30m

£880

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 1/9

17:35-18:15

1 stop30h 40m

Chicago O'Hare Intl

Fri 11/9

20:10-22:10

1 stop20h 00m

£898

LondonChicago

STN - ORD

STNORD

London Stansted

Sun 26/7

06:40-09:40

1 stop33h 00m

Chicago O'Hare Intl

Thu 30/7

20:10-16:50

1 stop38h 40m

£1,027

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Sun 9/8

22:00-20:24

3 stops28h 24m

Lambert-St Louis

Sun 16/8

12:10-19:30

3 stops25h 20m

£1,043

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 27/8

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Sat 5/9

11:25-09:55

1 stop16h 30m

£1,057

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 38 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 28h 50m. 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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Heathrow to Newark flights
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London City to Atlanta flights
London City to Orlando flights
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Stansted to Boston flights
Luton to Miami flights
Heathrow to Ontario flights
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Heathrow to Denver flights
Gatwick to Dallas/Fort Worth flights
London City to San Francisco flights
Stansted to San Francisco 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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