Find flights
When to book
FAQs

Cheap flights from London Stansted Airport to Illinois from £351

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
STN — ORD
1 May — 8 May1
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 1 April 2026.

Fri 1/506:20
STN
-
ORD
2 stops21h 05m
Multiple Airlines
Mon 4/519:25
ORD
-
STN
2 stops15h 25m
Multiple Airlines
Deal found 29/3£497
Mon 20/413:10
STN
-
ORD
2 stops35h 05m
Multiple Airlines
Mon 4/519:25
ORD
-
STN
2 stops15h 25m
Multiple Airlines
Deal found 31/3£501
Sat 18/405:55
STN
-
ORD
2 stops18h 20m
Multiple Airlines
Sat 25/419:25
ORD
-
STN
2 stops22h 40m
Multiple Airlines
Deal found 1/4£502
Tue 14/418:55
STN
-
ORD
2 stops27h 05m
Multiple Airlines
Tue 21/419:25
ORD
-
STN
2 stops22h 45m
Multiple Airlines
Deal found 30/3£505
Tue 21/418:55
STN
-
ORD
2 stops27h 05m
Multiple Airlines
Tue 28/419:25
ORD
-
STN
2 stops22h 45m
Multiple Airlines
Deal found 30/3£510
Tue 21/418:55
STN
-
ORD
2 stops27h 05m
Multiple Airlines
Mon 27/419:25
ORD
-
STN
2 stops17h 25m
Multiple Airlines
Deal found 30/3£511
Wed 15/421:30
STN
-
ORD
3 stops32h 54m
Multiple Airlines
Mon 20/419:25
ORD
-
STN
2 stops21h 00m
Multiple Airlines
Deal found 28/3£513
Wed 10/622:45
STN
-
ORD
2 stops26h 40m
Multiple Airlines
Tue 29/919:25
ORD
-
STN
2 stops21h 15m
Multiple Airlines
Deal found 28/3£514
Wed 29/422:00
STN
-
ORD
2 stops25h 50m
Multiple Airlines
Wed 6/519:25
ORD
-
STN
3 stops21h 15m
Multiple Airlines
Deal found 29/3£515
Tue 14/418:55
STN
-
ORD
2 stops27h 05m
Multiple Airlines
Sun 19/419:25
ORD
-
STN
2 stops18h 30m
Multiple Airlines
Deal found 30/3£516
Wed 2/908:30
STN
-
STL
2 stops17h 37m
Multiple Airlines
Wed 23/908:55
STL
-
STN
2 stops21h 50m
Multiple Airlines
Deal found 30/3£809
Thu 14/506:30
STN
-
STL
3 stops19h 39m
Multiple Airlines
Thu 21/507:05
STL
-
STN
2 stops31h 10m
Multiple Airlines
Deal found 30/3£820

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 1 April 2026.

Round-trip from

£497

One-way from

£322

Popular in

July

Cheapest in

September

Average price

£525
1/5-4/5
  • 1/5-4/5
  • 4 total stops
  • 36h 30m total
  • London to Illinois
Search Deals
13/4
  • 13/4
  • 3 total stops
  • 59h 59m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 1 April 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 - ORD

STNORD

London Stansted

Tue 14/4

09:10-00:24

3 stops45h 14m

Chicago O'Hare Intl

Fri 17/4

22:25-00:50

2 stops20h 25m

£525

LondonChicago

STN - ORD

STNORD

London Stansted

Wed 10/6

06:30-21:25

2 stops20h 55m

Chicago O'Hare Intl

Mon 20/7

09:50-23:20

2 stops31h 30m

£581

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 14/9

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Mon 28/9

11:25-16:40

1 stop23h 15m

£632
Fastest return journey

LondonChicago

STN - ORD

STNORD

London Stansted

Thu 24/9

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Tue 29/9

11:25-09:55

1 stop16h 30m

£632

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 30/6

06:55-09:40

1 stop32h 45m

Chicago O'Hare Intl

Wed 29/7

20:10-16:40

1 stop38h 30m

£653

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 30/6

06:55-09:40

1 stop32h 45m

Chicago O'Hare Intl

Thu 30/7

20:10-09:55

1 stop31h 45m

£653

LondonChicago

STN - ORD

STNORD

London Stansted

Tue 7/7

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Tue 14/7

11:25-16:50

1 stop23h 25m

£657

LondonChicago

STN - ORD

STNORD

London Stansted

Sun 21/6

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Tue 21/7

11:25-09:55

1 stop16h 30m

£662

LondonChicago

STN - ORD

STNORD

London Stansted

Fri 3/7

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Sat 25/7

11:25-09:55

1 stop16h 30m

£680

LondonSt. Louis

STN - STL

STNSTL

London Stansted

Wed 2/9

08:30-20:07

2 stops17h 37m

Lambert-St Louis

Wed 23/9

08:55-12:45

2 stops21h 50m

£810

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 38 resultsSorted by cheapest first
1
2
3
4

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Stansted to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Stansted to John F Kennedy Intl flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Heathrow to Los Angeles flights
Gatwick to LaGuardia flights
Heathrow to Orlando flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
Heathrow to Miami flights
Luton to Newark flights
Heathrow to Boston flights
London City to Newark flights
Heathrow to O'Hare Intl flights
Heathrow to Dallas/Fort Worth flights
Heathrow to Las Vegas flights
Heathrow to San Francisco flights
Gatwick to Los Angeles flights
Heathrow to Dulles Intl flights
Stansted to Los Angeles flights
Gatwick to Orlando flights
Gatwick to Boston flights
Heathrow to Hobby flights
London City to Los Angeles flights
Heathrow to Atlanta flights
Heathrow to Seattle flights
Gatwick to Miami flights
Stansted to Orlando flights
Stansted to Miami flights
Heathrow to Baltimore flights
Luton to Los Angeles flights
Heathrow to George Bush Intcntl flights
Heathrow to Ontario flights
London City to Miami flights
Stansted to LaGuardia flights
London City to Boston flights
Stansted to Boston flights
Heathrow to Tampa flights
Gatwick to San Francisco flights
London City to Orlando flights
Stansted to San Francisco flights
Luton to Miami flights
Heathrow to Denver flights
London City to San Francisco flights
Heathrow to Santa Ana flights
Gatwick to Las Vegas flights
Heathrow to Nashville flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Illinois from Stansted today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Stansted to Illinois?

Millions of users choose and trust Cheapflights to book the best flight deals from Stansted to Illinois for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.