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Cheap flights from London Stansted Airport to Illinois from £394

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
14 Aug — 21 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 15 July 2026.

Mon 28/917:20
STN
-
ORD
2 stops26h 40m
Multiple Airlines
Mon 5/1019:25
ORD
-
STN
2 stops18h 25m
Multiple Airlines
Deal found 15/7£514
Tue 15/917:20
STN
-
ORD
2 stops30h 55m
Multiple Airlines
Tue 22/919:25
ORD
-
STN
2 stops21h 15m
Multiple Airlines
Deal found 14/7£518
Fri 25/906:35
STN
-
ORD
2 stops19h 13m
Multiple Airlines
Mon 28/909:50
ORD
-
STN
3 stops23h 25m
Multiple Airlines
Deal found 15/7£519
Fri 20/1105:55
STN
-
ORD
1 stop15h 00m
Multiple Airlines
Wed 25/1117:40
ORD
-
STN
1 stop16h 20m
Multiple Airlines
Deal found 14/7£521
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
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
Tue 1/908:30
STN
-
ORD
1 stop16h 45m
Multiple Airlines
Thu 10/921:00
ORD
-
STN
1 stop18h 20m
Multiple Airlines
Deal found 14/7£527
Fri 4/905:55
STN
-
ORD
2 stops17h 55m
Multiple Airlines
Sun 13/915:45
ORD
-
STN
1 stop12h 05m
Multiple Airlines
Deal found 13/7£528
Fri 25/905:55
STN
-
ORD
2 stops17h 55m
Multiple Airlines
Mon 5/1021:30
ORD
-
STN
1 stop21h 20m
Multiple Airlines
Deal found 15/7£528
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
Wed 2/906:30
STN
-
ORD
1 stop13h 30m
Multiple Airlines
Wed 16/921:00
ORD
-
STN
1 stop18h 20m
Multiple Airlines
Deal found 15/7£531

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 15 July 2026.

Round-trip from

£514

One-way from

£394

Popular in

July

Cheapest in

February

Average price

£700
28/9-5/10
  • 28/9-5/10
  • 4 total stops
  • 45h 05m total
  • London to Illinois
Search Deals
17/8
  • 17/8
  • 3 total stops
  • 27h 40m 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 15 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 26/8

13:10-19:15

1 stop12h 05m

Chicago O'Hare Intl

Sun 30/8

15:45-09:50

1 stop12h 05m

£549

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 16/9

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Thu 1/10

20:10-09:55

1 stop31h 45m

£669

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 30/9

10:50-18:15

1 stop37h 25m

Chicago O'Hare Intl

Sat 10/10

20:10-09:55

1 stop31h 45m

£677

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 16/9

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Sat 26/9

11:25-16:40

1 stop23h 15m

£679

LondonChicago

STN - ORD

STNORD

London Stansted

Sun 20/9

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Fri 25/9

20:10-09:55

1 stop31h 45m

£687

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 8/10

12:00-19:15

1 stop13h 15m

Chicago O'Hare Intl

Tue 13/10

19:25-22:40

2 stops21h 15m

£695

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 27/11

17:20-18:20

1 stop31h 00m

Chicago O'Hare Intl

Mon 7/12

20:15-09:55

1 stop31h 40m

£769

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 28/10

10:55-11:00

1 stop29h 05m

Chicago O'Hare Intl

Sun 15/11

11:45-09:55

1 stop16h 10m

£806

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 1/9

17:35-18:15

1 stop30h 40m

Chicago O'Hare Intl

Mon 14/9

20:10-09:55

1 stop31h 45m

£822

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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Gatwick to Dallas/Fort Worth 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.

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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