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Cheap flights from London Stansted Airport to Illinois from £337

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
15 Jan — 22 Jan1
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 16 December 2025.

Wed 24/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Wed 31/1215:50ORD - STN
1 stop10h 00mMultiple Airlines
Deal found 14/12£578
Wed 24/1207:35STN - ORD
2 stops18h 30mMultiple Airlines
Sun 11/116:20ORD - STN
2 stops16h 50mMultiple Airlines
Deal found 14/12£598
Tue 16/1214:30STN - ORD
2 stops30h 30mMultiple Airlines
Sat 31/107:20ORD - STN
3 stops20h 25mMultiple Airlines
Deal found 16/12£665
Fri 19/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Mon 22/1215:50ORD - STN
1 stop10h 00mMultiple Airlines
Deal found 15/12£716
Wed 24/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Tue 30/1219:40ORD - STN
1 stop17h 10mMultiple Airlines
Deal found 14/12£721
Wed 24/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Sun 28/1216:56ORD - STN
2 stops21h 09mMultiple Airlines
Deal found 14/12£723
Wed 24/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Thu 1/119:40ORD - STN
1 stop13h 10mMultiple Airlines
Deal found 14/12£733
Wed 24/1206:30STN - ORD
1 stop13h 30mMultiple Airlines
Mon 29/1215:50ORD - STN
1 stop10h 00mMultiple Airlines
Deal found 14/12£742
Tue 16/1219:45STN - STL
2 stops24h 10mMultiple Airlines
Sat 31/116:05STL - STN
2 stops17h 25mMultiple Airlines
Deal found 16/12£1,508

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 16 December 2025.

Round-trip from

£449

One-way from

£337

Popular in

July

Cheapest in

February

Average price

£597
30/1-6/2
  • 30/1-6/2
  • 4 total stops
  • 54h 35m total
  • London to Illinois
Search Deals
15/1
  • 15/1
  • 3 total stops
  • 43h 51m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 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 December 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 16 December 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 30/1

13:50-17:20

2 stops33h 30m

Chicago O'Hare Intl

Fri 6/2

18:30-21:35

2 stops21h 05m

£449

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 13/2

08:30-17:20

2 stops14h 50m

Chicago O'Hare Intl

Wed 18/2

18:30-15:05

2 stops14h 35m

£500

LondonChicago

STN - ORD

STNORD

London Stansted

Sat 31/1

07:15-16:45

1 stop15h 30m

Chicago O'Hare Intl

Sat 7/2

19:20-13:05

1 stop11h 45m

£502

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 28/1

06:00-16:45

1 stop16h 45m

Chicago O'Hare Intl

Wed 4/2

19:20-13:00

1 stop11h 40m

£504

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 13/4

08:15-16:10

1 stop13h 55m

Chicago O'Hare Intl

Mon 20/4

19:15-18:50

1 stop17h 35m

£504

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 29/1

12:00-19:15

1 stop13h 15m

Chicago O'Hare Intl

Thu 5/2

21:00-16:35

1 stop13h 35m

£508

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 22/1

13:45-19:15

1 stop11h 30m

Chicago O'Hare Intl

Thu 29/1

21:00-18:20

1 stop15h 20m

£508

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 19/1

10:15-19:15

1 stop15h 00m

Chicago O'Hare Intl

Mon 26/1

21:00-21:20

1 stop18h 20m

£508

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 22/1

13:45-19:15

1 stop11h 30m

Chicago O'Hare Intl

Mon 26/1

21:00-21:20

1 stop18h 20m

£508

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 12/1

08:30-19:15

1 stop16h 45m

Chicago O'Hare Intl

Sat 17/1

21:00-14:50

1 stop11h 50m

£508

Flights are sorted by cheapest return flights first.

Deals found on 13/12

Showing 1-10 of 32 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.

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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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How does Cheapflights help users find flights from Stansted to Illinois?

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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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