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Cheap flights from London Stansted Airport to Illinois from £395

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Stansted to Illinois

Keep the following information in mind while searching for Stansted to Illinois flight deals. Data was last updated 17 September 2025.

Round-trip from

£397

One-way from

£396

Popular in

July

Cheapest in

February

Average price

£435
14/10-21/10
  • 14/10-21/10
  • 2 total stops
  • 25h 05m total
  • London to Illinois
Search Deals
29/12
  • 29/12
  • 1 total stop
  • 22h 15m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£61 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 September 2025
Search Deals

Find flight deals from Stansted to Illinois

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 17 September 2025.

Tue 14/1008:15STN - ORD
1 stop11h 45mMultiple Airlines
Tue 21/1021:15ORD - STN
1 stop13h 20mMultiple Airlines
Deal found 16/9£397
Wed 24/908:15STN - ORD
2 stops16h 00mMultiple Airlines
Wed 1/1019:25ORD - STN
2 stops21h 05mMultiple Airlines
Deal found 15/9£398
Fri 7/1106:30STN - ORD
1 stop17h 25mMultiple Airlines
Mon 10/1119:40ORD - STN
1 stop19h 40mMultiple Airlines
Deal found 16/9£402
Wed 15/1008:15STN - ORD
1 stop16h 45mMultiple Airlines
Wed 22/1015:45ORD - STN
1 stop11h 10mMultiple Airlines
Deal found 15/9£405
Fri 31/1013:30STN - ORD
3 stops33h 15mMultiple Airlines
Mon 3/1119:20ORD - STN
2 stops20h 00mMultiple Airlines
Deal found 16/9£412
Wed 15/1022:10STN - ORD
2 stops20h 25mMultiple Airlines
Sun 19/1018:00ORD - STN
2 stops21h 45mMultiple Airlines
Deal found 15/9£418
Sat 8/1119:15STN - ORD
2 stops28h 05mMultiple Airlines
Sat 15/1118:30ORD - STN
2 stops14h 55mMultiple Airlines
Deal found 15/9£428
Fri 31/1013:50STN - ORD
2 stops33h 30mMultiple Airlines
Fri 7/1118:30ORD - STN
2 stops16h 50mMultiple Airlines
Deal found 16/9£436
Wed 15/1008:15STN - ORD
1 stop16h 45mMultiple Airlines
Sat 18/1015:45ORD - STN
1 stop10h 00mMultiple Airlines
Deal found 16/9£440
Tue 30/907:15STN - ORD
2 stops32h 36mMultiple Airlines
Tue 7/1010:40ORD - STN
2 stops20h 00mMultiple Airlines
Deal found 16/9£443
Thu 23/1006:55STN - STL
2 stops14h 23mMultiple Airlines
Sun 26/1016:50STL - STN
2 stops18h 45mMultiple Airlines
Deal found 15/9£849
Fri 17/1011:15STN - STL
3 stops36h 55mMultiple Airlines
Thu 30/1016:05STL - STN
3 stops26h 30mMultiple Airlines
Deal found 15/9£861

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 17 September 2025.
Use the filters below to find and compare flights from London Stansted Airport to Illinois that are best for you.

Fly from

Stansted

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 7/11

06:30-17:55

1 stop17h 25m

Chicago O'Hare Intl

Mon 10/11

19:40-21:20

1 stop19h 40m

£402

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 14/10

11:15-19:00

1 stop13h 45m

Chicago O'Hare Intl

Tue 21/10

15:45-16:35

1 stop18h 50m

£406

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 31/10

13:30-17:45

3 stops33h 15m

Chicago O'Hare Intl

Mon 3/11

19:20-21:20

2 stops20h 00m

£412

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 30/10

06:30-21:05

2 stops19h 35m

Chicago O'Hare Intl

Thu 6/11

18:50-23:20

2 stops22h 30m

£418

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 30/9

07:15-19:29

3 stops18h 14m

Chicago O'Hare Intl

Tue 7/10

08:40-12:40

2 stops22h 00m

£447

LondonChicago

STN - ORD

STNORD

London Stansted

Sun 9/11

14:15-17:20

2 stops33h 05m

Chicago O'Hare Intl

Sat 15/11

18:30-15:25

2 stops14h 55m

£458

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 30/9

07:15-09:51

2 stops32h 36m

Chicago O'Hare Intl

Sun 5/10

10:40-11:55

2 stops19h 15m

£462

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 16/10

14:50-16:10

2 stops31h 20m

Chicago O'Hare Intl

Fri 24/10

18:00-23:10

2 stops23h 10m

£463

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 17/11

07:35-16:45

1 stop15h 10m

Chicago O'Hare Intl

Fri 21/11

19:20-15:15

1 stop13h 55m

£506

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 12/11

06:00-16:45

1 stop16h 45m

Chicago O'Hare Intl

Sat 15/11

19:20-13:05

1 stop11h 45m

£506

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 34 results
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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.

  • 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.

  • What is the cheapest month to book a flight from London Stansted Airport to Illinois?

    Currently, January is the cheapest month in which you can book a flight from London Stansted Airport to Illinois (average of £595). Flying from London Stansted Airport to Illinois in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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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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