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

Departing from London Stansted Airport to Illinois will take you 37h 25m. 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.

£349+ 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 19 September 2026.

Wed 23/906:30 -

1 stop13h 30m

Wed 7/1015:45 -

1 stop13h 50m

Deal found 14/9£535

Thu 15/1006:30 -

1 stop13h 30m

Thu 22/1015:45 -

1 stop10h 05m

Deal found 17/9£542

Sat 21/1119:15 -

2 stops25h 40m

Sat 28/1115:55 -

1 stop11h 40m

Deal found 18/9£544

Wed 25/1108:40 -

2 stops14h 40m

Sat 5/1218:30 -

2 stops17h 55m

Deal found 16/9£546

Thu 22/1010:40 -

2 stops35h 30m

Sun 25/1020:15 -

2 stops21h 50m

Deal found 17/9£547

Mon 2/1122:35 -

2 stops22h 20m

Mon 16/1120:05 -

1 stop18h 10m

Deal found 15/9£549

Sun 22/1106:30 -

2 stops16h 50m

Sun 29/1118:30 -

3 stops17h 30m

Deal found 18/9£550

Mon 16/1106:00 -

2 stops17h 20m

Sun 22/1118:30 -

3 stops17h 30m

Deal found 18/9£551

Thu 5/1107:55 -

2 stops15h 25m

Sun 8/1115:55 -

1 stop9h 55m

Deal found 16/9£553

Wed 28/1014:30 -

2 stops32h 15m

Mon 2/1119:15 -

2 stops20h 40m

Deal found 16/9£553

Thu 15/1022:05 -

2 stops28h 15m

Tue 20/1015:30 -

2 stops26h 40m

Deal found 15/9£677

Wed 14/1018:00 -

3 stops30h 41m

Wed 21/1015:30 -

2 stops22h 10m

Deal found 14/9£767

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 19 September 2026.

Sat 21/1119:15 -

2 stops25h 40m

Sat 28/1115:55 -

1 stop11h 40m

Deal found 18/9£544

Sat 21/1110:55 -

1 stop37h 25m

Wed 2/1220:15 -

1 stop38h 05m

Deal found 15/9£687

Thu 22/1009:05 -

2 stops30h 35m

Sat 24/1011:25 -

2 stops21h 45m

Deal found 19/9£666

Wed 4/1110:55 -

1 stop30h 05m

Sun 29/1111:45 -

1 stop16h 10m

Deal found 17/9£733

Sun 1/1117:20 -

1 stop32h 00m

Sun 8/1111:45 -

1 stop16h 10m

Deal found 14/9£764

Sun 4/1006:35 -

1 stop18h 40m

Thu 8/1015:45 -

1 stop10h 05m

Deal found 18/9£803

Tue 3/1117:20 -

1 stop23h 40m

Sat 7/1112:45 -

1 stop15h 10m

Deal found 15/9£776

Wed 7/1010:50 -

1 stop28h 50m

Wed 21/1011:25 -

1 stop23h 15m

Deal found 17/9£828

Wed 30/919:10 -

3 stops29h 31m

Mon 5/1014:40 -

2 stops16h 10m

Deal found 16/9£933

Thu 22/1017:35 -

1 stop22h 05m

Sun 25/1012:45 -

1 stop16h 10m

Deal found 18/9£922

Mon 12/1014:10 -

3 stops34h 31m

Mon 19/1012:10 -

3 stops16h 30m

Deal found 14/9£1,077

Thu 10/1210:55 -

1 stop29h 05m

Thu 7/111:45 -

1 stop22h 35m

Deal found 15/9£958

Wed 30/910:50 -

1 stop28h 50m

Mon 5/1020:10 -

1 stop38h 40m

Deal found 15/9£962

Wed 30/910:50 -

1 stop28h 50m

Sat 10/1020:10 -

1 stop31h 45m

Deal found 14/9£974

Wed 28/1010:55 -

2 stops33h 48m

Tue 3/1107:30 -

2 stops44h 25m

Deal found 17/9£983

Thu 12/1117:20 -

2 stops34h 20m

Tue 17/1107:30 -

2 stops20h 25m

Deal found 17/9£983

Sun 1/1117:20 -

2 stops34h 20m

Sun 8/1107:30 -

2 stops20h 25m

Deal found 17/9£1,022

Mon 2/1110:55 -

2 stops40h 45m

Mon 9/1107:30 -

2 stops44h 25m

Deal found 18/9£1,022

Wed 7/1017:45 -

2 stops33h 36m

Fri 16/1008:00 -

2 stops19h 55m

Deal found 17/9£1,089

Tue 17/1117:20 -

2 stops34h 20m

Sun 22/1107:30 -

2 stops50h 50m

Deal found 15/9£1,106

Thu 29/1017:20 -

2 stops51h 23m

Thu 5/1107:30 -

2 stops20h 25m

Deal found 14/9£1,110

Mon 12/1010:50 -

2 stops40h 31m

Mon 19/1008:00 -

2 stops50h 50m

Deal found 14/9£1,110

Find flight deals from Stansted to Illinois

Round-trip from	£542
One-way from	£349
Popular in	August
Cheapest in	February
Average price	£609

15/10-22/10
2 total stops
23h 35m total
London to Illinois

Search Deals

14/10-31/12
2 total stops
37h 30m total
London to Illinois

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£65 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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 23/9

08:20-12:40

2 stops34h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£376

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 12/10

15:00-19:15

3 stops58h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£378

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 22/10

09:20-18:15

3 stops38h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£382

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 17/12

06:45-18:20

1 stop17h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£385

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 5/11

06:45-18:20

1 stop17h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£386

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 1/10

11:05-00:45

3 stops43h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£390

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Sat 31/10

20:10-00:16

3 stops57h 06m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£395

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 23/10

16:20-18:15

2 stops31h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£398

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Sun 1/11

08:50-23:16

3 stops44h 26m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£405

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sun 18/10

08:20-21:25

3 stops19h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£485

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 39 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 37h 25m. 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 £349

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. 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 19 September 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 19 September 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 19 September 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 19 September 2026.

Last-minute flights from Stansted to IllinoisDiscover last-minute flight deals from Stansted to Illinois. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Illinois. Data last updated 19 September 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 19 September 2026.

Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 19 September 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 19 September 2026.

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Stansted to Illinois flights

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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 19 September 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 19 September 2026.

Last-minute flights from Stansted to Illinois
Discover last-minute flight deals from Stansted to Illinois. Data last updated 19 September 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 19 September 2026.