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Cheap flights from London Stansted Airport to Illinois from £341

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
12 Sep — 19 Sep1
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 13 August 2026.

Thu 15/1006:30 -
1 stop18h 45m
Sun 18/1021:00 -
1 stop20h 25m
Deal found 13/8£469
Sun 27/908:30 -
1 stop16h 45m
Sun 4/1015:45 -
1 stop10h 05m
Deal found 13/8£470
Thu 17/906:30 -
1 stop13h 30m
Mon 21/915:45 -
1 stop10h 05m
Deal found 12/8£472
Thu 24/906:30 -
1 stop13h 30m
Thu 1/1015:45 -
1 stop10h 05m
Deal found 10/8£476
Fri 25/906:35 -
1 stop13h 25m
Fri 2/1021:00 -
1 stop16h 20m
Deal found 11/8£477
Thu 3/906:30 -
1 stop18h 45m
Sun 6/915:45 -
1 stop10h 05m
Deal found 10/8£478
Mon 7/906:30 -
1 stop13h 30m
Mon 14/921:00 -
1 stop20h 20m
Deal found 10/8£478
Mon 7/906:30 -
1 stop13h 30m
Mon 21/915:45 -
1 stop10h 05m
Deal found 9/8£479
Thu 24/907:20 -
2 stops19h 00m
Thu 1/1012:10 -
3 stops25h 05m
Deal found 10/8£624
Tue 20/1007:15 -
3 stops18h 45m
Mon 26/1016:05 -
3 stops26h 00m
Deal found 9/8£651
Fri 4/906:35 -
2 stops19h 47m
Fri 25/912:10 -
2 stops23h 25m
Deal found 12/8£801
Mon 7/920:45 -
3 stops29h 35m
Mon 14/912:10 -
2 stops25h 15m
Deal found 10/8£821

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 13 August 2026.

Round-trip from

£469

One-way from

£341

Popular in

July

Cheapest in

February

Average price

£692
15/10-18/10
  • 15/10-18/10
  • 2 total stops
  • 39h 10m total
  • London to Illinois
Search Deals
22/9
  • 22/9
  • 3 total stops
  • 28h 35m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£84 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 August 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 13 August 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 London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 14/11

10:55-18:20

1 stop37h 25m

Chicago O'Hare Intl

Sat 21/11

11:45-16:20

1 stop22h 35m

£687

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Tue 22/9

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Wed 21/10

11:25-16:40

1 stop23h 15m

£692

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 9/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Thu 15/10

20:10-16:50

1 stop38h 40m

£698

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

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

£702

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 3/10

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Mon 12/10

20:10-09:55

1 stop31h 45m

£732

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 2/12

10:55-10:00

1 stop29h 05m

Chicago O'Hare Intl

Sun 6/12

20:15-16:20

1 stop38h 05m

£754

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 16/9

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Wed 23/9

20:10-16:40

1 stop38h 30m

£757

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sun 20/9

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Fri 25/9

11:25-09:55

1 stop16h 30m

£768

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 14/9

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Mon 28/9

20:10-16:50

1 stop38h 40m

£797

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 18/9

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Mon 21/9

20:10-16:50

1 stop38h 40m

£807

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 41 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 37h 25m. 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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Heathrow to Orlando flights
Luton to John F Kennedy Intl flights
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Heathrow to O'Hare Intl flights
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Gatwick to Orlando flights
Heathrow to Baltimore flights
Stansted to Orlando flights
Gatwick to Miami flights
Heathrow to George Bush Intcntl flights
London City to Orlando flights
Gatwick to Los Angeles flights
Stansted to Miami flights
London City to Miami flights
Heathrow to Tampa flights
Heathrow to Seattle flights
London City to Los Angeles flights
Stansted to Los Angeles flights
Gatwick to Boston flights
Heathrow to Atlanta flights
London City to Boston flights
Luton to Miami flights
Gatwick to Las Vegas flights
Gatwick to San Francisco flights
Luton to Orlando flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Heathrow to Ontario flights
London City to San Francisco flights
Gatwick to Dallas/Fort Worth flights
Stansted to Dulles Intl 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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