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Cheap flights from London Stansted Airport to Illinois from £324

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 November 2025.

Wed 3/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Wed 10/1215:50ORD - STN
1 stop10h 00mMultiple Airlines
Deal found 12/11£425
Thu 4/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Sun 7/1219:40ORD - STN
1 stop11h 40mMultiple Airlines
Deal found 12/11£426
Thu 11/1206:30STN - ORD
2 stops16h 50mMultiple Airlines
Sun 14/1218:30ORD - STN
2 stops22h 30mMultiple Airlines
Deal found 12/11£429
Tue 2/1220:25STN - ORD
2 stops23h 55mMultiple Airlines
Mon 8/1217:20ORD - STN
2 stops20h 40mMultiple Airlines
Deal found 13/11£429
Wed 26/1106:30STN - ORD
1 stop13h 30mMultiple Airlines
Sun 30/1119:40ORD - STN
1 stop13h 10mMultiple Airlines
Deal found 13/11£430
Sat 6/1212:00STN - ORD
1 stop11h 55mMultiple Airlines
Tue 9/1219:40ORD - STN
1 stop16h 40mMultiple Airlines
Deal found 13/11£441
Tue 25/1106:30STN - ORD
2 stops16h 50mMultiple Airlines
Fri 28/1118:30ORD - STN
2 stops20h 50mMultiple Airlines
Deal found 13/11£446
Thu 27/1108:30STN - ORD
1 stop11h 30mMultiple Airlines
Mon 1/1215:50ORD - STN
1 stop12h 00mMultiple Airlines
Deal found 13/11£451
Wed 10/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Wed 17/1215:50ORD - STN
1 stop15h 30mMultiple Airlines
Deal found 12/11£452
Thu 20/1116:30STN - ORD
2 stops28h 55mMultiple Airlines
Sun 23/1120:25ORD - STN
2 stops20h 35mMultiple Airlines
Deal found 12/11£480
Thu 20/1106:30STN - ORD
1 stop17h 25mMultiple Airlines
Thu 27/1115:50ORD - STN
1 stop10h 00mMultiple Airlines
Deal found 12/11£483
Thu 11/1211:30STN - STL
2 stops32h 25mMultiple Airlines
Thu 18/1216:05STL - STN
3 stops25h 30mMultiple Airlines
Deal found 13/11£1,414

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 14 November 2025.

Round-trip from

£425

One-way from

£324

Popular in

July

Cheapest in

February

Average price

£470
25/11-2/12
  • 25/11-2/12
  • 2 total stops
  • 27h 25m total
  • London to Illinois
Search Deals
11/12
  • 11/12
  • 3 total stops
  • 42h 33m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£62 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 November 2025
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 November 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

Wed 3/12

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Wed 10/12

15:50-07:50

1 stop10h 00m

£425

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 4/12

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Sun 7/12

19:40-13:20

1 stop11h 40m

£426

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 11/12

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Sun 14/12

18:30-23:00

2 stops22h 30m

£429

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 2/12

20:25-14:20

2 stops23h 55m

Chicago O'Hare Intl

Mon 8/12

17:20-20:00

2 stops20h 40m

£429

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 26/11

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Sun 30/11

19:40-14:50

1 stop13h 10m

£430

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 10/12

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Wed 17/12

15:50-09:50

1 stop12h 00m

£451

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 4/12

06:15-17:20

2 stops17h 05m

Chicago O'Hare Intl

Thu 11/12

18:30-17:30

2 stops17h 00m

£490

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 6/2

12:50-16:45

2 stops33h 55m

Chicago O'Hare Intl

Sun 15/2

19:10-00:50

2 stops23h 40m

£500

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 16/12

07:40-15:00

2 stops37h 20m

Chicago O'Hare Intl

Sun 10/5

20:50-12:55

1 stop10h 05m

£512

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 16/12

07:40-15:00

2 stops37h 20m

Chicago O'Hare Intl

Tue 5/5

20:50-14:45

1 stop11h 55m

£512

Flights are sorted by cheapest return flights first.

Deals found on 13/11

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.

  • How long is the flight from London Stansted Airport to Illinois?

    Departing from London Stansted Airport to Illinois will take you 44h 48m. The distance from London Stansted Airport to Illinois is about 4200 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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Luton to Los Angeles flights
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Stansted to Orlando flights

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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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