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.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from STN to IL?

When flying from London Stansted Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£249+ Cheap Flights from London Stansted Airport to Illinois

Cheap flight deals from Stansted to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 25 August 2026.

Mon 12/1006:30 -

1 stop13h 30m

Mon 19/1021:00 -

1 stop18h 20m

Deal found 21/8£466

Wed 18/1107:15 -

1 stop17h 10m

Tue 24/1120:10 -

1 stop19h 40m

Deal found 22/8£469

Thu 17/906:30 -

1 stop13h 30m

Mon 21/915:45 -

1 stop10h 05m

Deal found 23/8£470

Sun 20/906:35 -

1 stop18h 40m

Sun 27/915:45 -

1 stop10h 05m

Deal found 23/8£471

Wed 25/1108:15 -

2 stops15h 05m

Mon 30/1118:30 -

2 stops17h 20m

Deal found 23/8£471

Thu 3/906:30 -

1 stop13h 30m

Sat 5/922:25 -

2 stops27h 15m

Deal found 21/8£472

Mon 12/1022:45 -

1 stop21h 15m

Tue 20/1021:00 -

1 stop14h 35m

Deal found 21/8£474

Wed 16/906:30 -

1 stop13h 30m

Wed 23/921:00 -

1 stop18h 20m

Deal found 24/8£477

Sat 19/906:35 -

1 stop18h 40m

Wed 23/921:00 -

1 stop20h 20m

Deal found 22/8£477

Fri 2/1006:35 -

1 stop13h 25m

Fri 2/1021:00 -

1 stop16h 20m

Deal found 22/8£480

Wed 9/906:30 -

1 stop18h 45m

Sat 19/915:45 -

1 stop10h 05m

Deal found 21/8£481

Mon 21/911:10 -

2 stops35h 00m

Mon 5/1019:15 -

2 stops22h 05m

Deal found 22/8£482

Best flights from Stansted to Illinois
Discover carefully curated flight deals from Stansted to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 August 2026.

Wed 7/1021:30 -

3 stops23h 22m

Tue 13/1014:15 -

2 stops24h 45m

Deal found 20/8£584

Wed 7/1010:50 -

1 stop28h 50m

Wed 21/1011:25 -

1 stop23h 15m

Deal found 21/8£668

Fri 1/120:10 -

1 stop23h 50m

Tue 5/118:30 -

2 stops17h 35m

Deal found 20/8£639

Thu 8/1017:35 -

1 stop22h 05m

Tue 13/1011:25 -

1 stop23h 25m

Deal found 24/8£669

Wed 7/1010:50 -

1 stop28h 50m

Tue 13/1011:25 -

1 stop16h 30m

Deal found 20/8£669

Mon 21/920:45 -

2 stops23h 15m

Tue 6/1016:55 -

1 stop12h 45m

Deal found 20/8£726

Sat 10/1010:50 -

1 stop28h 50m

Thu 15/1020:10 -

1 stop38h 40m

Deal found 21/8£675

Sun 11/1017:35 -

1 stop22h 05m

Thu 26/1111:45 -

1 stop16h 10m

Deal found 20/8£699

Thu 15/1017:35 -

1 stop22h 05m

Sun 18/1011:25 -

1 stop16h 30m

Deal found 21/8£719

Wed 7/1006:30 -

2 stops13h 30m

Wed 14/1014:40 -

2 stops24h 40m

Deal found 23/8£933

Wed 30/917:45 -

1 stop21h 55m

Wed 7/1011:25 -

1 stop23h 15m

Deal found 25/8£724

Sun 18/1010:50 -

1 stop28h 50m

Tue 27/1021:15 -

1 stop31h 40m

Deal found 23/8£742

Sat 31/1010:55 -

2 stops40h 40m

Sat 7/1114:55 -

2 stops19h 25m

Deal found 20/8£1,067

Wed 28/1010:55 -

2 stops33h 48m

Tue 3/1107:30 -

2 stops20h 25m

Deal found 20/8£1,049

Thu 8/1017:35 -

2 stops33h 46m

Thu 15/1008:00 -

2 stops19h 55m

Deal found 23/8£1,057

Mon 5/1010:50 -

2 stops40h 31m

Mon 12/1008:00 -

2 stops43h 55m

Deal found 21/8£1,057

Fri 13/1117:20 -

2 stops34h 15m

Sat 5/1206:33 -

2 stops45h 22m

Deal found 24/8£1,058

Tue 6/1017:35 -

2 stops33h 46m

Tue 13/1008:00 -

2 stops19h 55m

Deal found 22/8£1,068

Sat 17/1017:45 -

2 stops33h 36m

Fri 23/1008:00 -

2 stops26h 50m

Deal found 20/8£1,090

Find flight deals from Stansted to Illinois

Round-trip from	£466
One-way from	£249
Popular in	August
Cheapest in	February
Average price	£718

12/10-19/10
2 total stops
31h 50m total
London to Illinois

Search Deals

13/11
3 total stops
42h 29m total
London to Illinois

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£46 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

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

Wed 7/10

21:30-14:52

3 stops23h 22m

Chicago O'Hare Intl

Tue 13/10

14:15-21:00

2 stops24h 45m

£584

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 1/1

20:10-14:00

1 stop23h 50m

Chicago O'Hare Intl

Tue 5/1

18:30-18:05

2 stops17h 35m

£639

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 7/10

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Wed 21/10

11:25-16:40

1 stop23h 15m

£668

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 8/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Tue 13/10

11:25-16:50

1 stop23h 25m

£669

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 7/10

10:50-09:40

1 stop28h 50m

Chicago O'Hare Intl

Tue 13/10

11:25-09:55

1 stop16h 30m

£669

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

£675

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sun 11/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Thu 26/11

11:45-09:55

1 stop16h 10m

£699

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 15/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Sun 18/10

11:25-09:55

1 stop16h 30m

£719

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 30/9

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Wed 7/10

11:25-16:40

1 stop23h 15m

£724

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 21/9

20:45-14:00

2 stops23h 15m

Chicago O'Hare Intl

Tue 6/10

16:55-11:40

1 stop12h 45m

£726

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 41 resultsSorted by cheapest first

...

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.

STN-STL

STN-ORD

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

STN-USIL

STN-STL

STN-ORD

No data available for this route at this time. Please check back soon.

Related info for your journey

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

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Top destinations

Alternative routes for Stansted to Illinois

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Luton to Los Angeles flights

Heathrow to Reagan-National flights

Stansted to Dulles Intl flights

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London City to Dulles Intl flights

Fly with Cheapflights

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.

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Cheap flights from London Stansted Airport to Illinois from £249

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Stansted to Illinois

Cheapest flights from Stansted to IllinoisExplore 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 25 August 2026.

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 25 August 2026.

Best flights from Stansted to IllinoisDiscover carefully curated flight deals from Stansted to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 August 2026.

Discover carefully curated flight deals from Stansted to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 August 2026.

Last-minute flights from Stansted to IllinoisDiscover last-minute flight deals from Stansted to Illinois. Data last updated 25 August 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Illinois. Data last updated 25 August 2026 and is based on user searches.

One-way flights from Stansted to IllinoisSearch for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 25 August 2026.

Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 25 August 2026.

Find flight deals from Stansted to Illinois

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Cheapflights Fare Finder

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

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.

Cheapflights Insights

Related info for your journey

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

Can I find deals for flights from Stansted to Illinois that include hotel bookings?

How can I find direct flights from Stansted to Illinois?

Can I find deals for business class flights from Stansted to Illinois?

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.

Complete your trip

Complete your trip to Illinois by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Stansted to Illinois by cabin class

Find flights from Stansted to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Stansted and Illinois flights

Browse other Stansted and Illinois flight options. Last updated on 25 August 2026.

Popular flight searches

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Stansted to Illinois flights

Consider these flights travelling from Stansted to Illinois.

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

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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 25 August 2026.

Best flights from Stansted to Illinois
Discover carefully curated flight deals from Stansted to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 August 2026.

Last-minute flights from Stansted to Illinois
Discover last-minute flight deals from Stansted to Illinois. Data last updated 25 August 2026 and is based on user searches.

One-way flights from Stansted to Illinois
Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 25 August 2026.