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

Departing from London Stansted Airport to Illinois will take you 22h 05m. 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.

£344+ 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 31 August 2026.

Thu 22/1013:15 -

1 stop12h 00m

Thu 29/1021:05 -

1 stop11h 30m

Deal found 28/8£533

Mon 12/1008:30 -

1 stop11h 30m

Mon 19/1021:00 -

1 stop14h 05m

Deal found 27/8£533

Fri 4/906:35 -

1 stop13h 25m

Mon 14/921:00 -

1 stop11h 40m

Deal found 28/8£534

Mon 14/906:30 -

2 stops17h 45m

Mon 28/919:25 -

2 stops18h 00m

Deal found 27/8£535

Tue 20/1007:10 -

1 stop15h 00m

Thu 29/1020:15 -

1 stop16h 10m

Deal found 26/8£537

Thu 17/917:25 -

2 stops28h 45m

Thu 24/919:15 -

2 stops19h 05m

Deal found 27/8£539

Sun 11/1007:05 -

1 stop15h 05m

Sun 18/1019:15 -

1 stop22h 05m

Deal found 27/8£541

Tue 13/1008:30 -

2 stops15h 45m

Tue 20/1019:25 -

2 stops16h 10m

Deal found 29/8£543

Mon 12/1021:30 -

2 stops22h 30m

Mon 19/1014:40 -

2 stops18h 10m

Deal found 27/8£915

Tue 13/1020:30 -

2 stops22h 55m

Tue 20/1012:10 -

3 stops20h 25m

Deal found 29/8£1,033

Thu 15/1017:35 -

2 stops33h 46m

Sat 24/1016:55 -

2 stops18h 25m

Deal found 27/8£1,039

Mon 7/918:05 -

3 stops30h 36m

Wed 7/1012:10 -

2 stops19h 35m

Deal found 29/8£1,047

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 31 August 2026.

Thu 8/1017:35 -

1 stop22h 05m

Mon 12/1020:10 -

1 stop31h 45m

Deal found 31/8£669

Mon 12/1021:30 -

2 stops22h 30m

Mon 19/1014:40 -

2 stops18h 10m

Deal found 27/8£915

Sat 10/1010:50 -

1 stop28h 50m

Thu 15/1020:10 -

1 stop38h 40m

Deal found 30/8£681

Mon 22/210:55 -

1 stop37h 25m

Mon 1/311:45 -

1 stop22h 35m

Deal found 28/8£692

Mon 2/1110:55 -

1 stop30h 05m

Wed 11/1111:45 -

1 stop16h 10m

Deal found 26/8£694

Tue 3/1117:20 -

1 stop23h 40m

Thu 12/1111:45 -

1 stop16h 10m

Deal found 26/8£694

Thu 15/1017:35 -

2 stops33h 46m

Sat 24/1016:55 -

2 stops18h 25m

Deal found 27/8£1,039

Fri 9/1017:35 -

1 stop22h 05m

Sun 11/1020:10 -

1 stop38h 30m

Deal found 31/8£779

Sat 17/1017:45 -

1 stop21h 55m

Sat 21/1120:15 -

1 stop31h 40m

Deal found 29/8£842

Tue 22/917:35 -

1 stop22h 05m

Wed 21/1011:25 -

1 stop23h 15m

Deal found 28/8£847

Thu 17/917:35 -

1 stop22h 05m

Mon 21/920:10 -

1 stop38h 40m

Deal found 26/8£849

Thu 22/1017:35 -

1 stop22h 05m

Sun 25/1012:45 -

1 stop16h 10m

Deal found 30/8£875

Sat 3/1017:45 -

1 stop21h 55m

Wed 14/1020:10 -

1 stop38h 30m

Deal found 31/8£903

Mon 9/1110:55 -

2 stops40h 40m

Mon 30/1107:30 -

2 stops26h 50m

Deal found 31/8£1,058

Tue 13/1017:35 -

2 stops33h 46m

Tue 20/1008:00 -

2 stops19h 55m

Deal found 28/8£1,059

Tue 17/1117:20 -

2 stops34h 15m

Tue 24/1107:30 -

2 stops50h 50m

Deal found 29/8£1,061

Wed 14/1017:45 -

2 stops33h 36m

Wed 21/1008:00 -

2 stops26h 40m

Deal found 29/8£1,061

Wed 28/1010:55 -

2 stops33h 48m

Tue 3/1107:30 -

2 stops50h 50m

Deal found 30/8£1,061

Thu 1/1017:35 -

2 stops33h 46m

Sat 10/1008:00 -

2 stops26h 40m

Deal found 31/8£1,061

Thu 8/1017:35 -

2 stops33h 46m

Thu 15/1008:00 -

2 stops19h 55m

Deal found 27/8£1,063

Sat 21/1117:20 -

2 stops34h 15m

Sat 28/1107:30 -

2 stops26h 50m

Deal found 30/8£1,098

Find flight deals from Stansted to Illinois

Round-trip from	£533
One-way from	£344
Popular in	August
Cheapest in	February
Average price	£734

22/10-29/10
2 total stops
23h 30m total
London to Illinois

Search Deals

9/9
2 total stops
34h 55m total
London to Illinois

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£57 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

Thu 8/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Mon 12/10

20:10-09:55

1 stop31h 45m

£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

£681

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 22/2

10:55-18:20

1 stop37h 25m

Chicago O'Hare Intl

Mon 1/3

11:45-16:20

1 stop22h 35m

£692

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 2/11

10:55-11:00

1 stop30h 05m

Chicago O'Hare Intl

Wed 11/11

11:45-09:55

1 stop16h 10m

£694

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Tue 3/11

17:20-11:00

1 stop23h 40m

Chicago O'Hare Intl

Thu 12/11

11:45-09:55

1 stop16h 10m

£694

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

Sun 11/10

20:10-16:40

1 stop38h 30m

£779

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 17/10

17:45-09:40

1 stop21h 55m

Chicago O'Hare Intl

Sat 21/11

20:15-09:55

1 stop31h 40m

£842

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

£847

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 17/9

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Mon 21/9

20:10-16:50

1 stop38h 40m

£849

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 22/10

17:35-09:40

1 stop22h 05m

Chicago O'Hare Intl

Sun 25/10

12:45-09:55

1 stop16h 10m

£875

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 40 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-ORD

STN-STL

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-ORD

STN-STL

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 22h 05m. 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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Alternative routes for Stansted to Illinois

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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 £344

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 9/9. 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 31 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 31 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 31 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 31 August 2026.

Last-minute flights from Stansted to IllinoisDiscover last-minute flight deals from Stansted to Illinois. Data last updated 31 August 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Illinois. Data last updated 31 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 31 August 2026.

Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 31 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

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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.

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 31 August 2026.

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Stansted to Illinois flights

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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 31 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 31 August 2026.

Last-minute flights from Stansted to Illinois
Discover last-minute flight deals from Stansted to Illinois. Data last updated 31 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 31 August 2026.