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

Departing from London Stansted Airport to Illinois will take you 38h 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.

£347+ 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 13 September 2026.

Wed 14/1006:30 -

1 stop13h 30m

Wed 21/1015:45 -

1 stop12h 05m

Deal found 8/9£526

Wed 7/1008:30 -

1 stop16h 45m

Tue 13/1015:45 -

1 stop10h 05m

Deal found 10/9£527

Mon 2/1113:30 -

2 stops33h 15m

Mon 16/1119:15 -

2 stops20h 10m

Deal found 12/9£528

Thu 17/906:30 -

2 stops14h 40m

Sun 20/916:15 -

2 stops24h 05m

Deal found 10/9£529

Thu 8/1012:00 -

1 stop13h 15m

Mon 12/1021:00 -

1 stop18h 20m

Deal found 8/9£530

Thu 22/1007:20 -

2 stops16h 55m

Sun 25/1019:30 -

2 stops16h 25m

Deal found 11/9£531

Thu 8/1021:00 -

2 stops22h 25m

Thu 15/1012:10 -

2 stops25h 05m

Deal found 10/9£846

Tue 15/921:55 -

2 stops28h 25m

Wed 14/1012:10 -

3 stops17h 20m

Deal found 10/9£851

Fri 2/1022:30 -

2 stops27h 50m

Fri 16/1014:40 -

3 stops18h 10m

Deal found 11/9£860

Thu 1/1014:05 -

2 stops29h 20m

Wed 14/1015:30 -

2 stops16h 15m

Deal found 11/9£950

Wed 16/919:10 -

2 stops24h 50m

Wed 23/912:10 -

2 stops17h 25m

Deal found 11/9£968

Sun 4/1019:45 -

2 stops30h 35m

Fri 9/1012:10 -

3 stops21h 55m

Deal found 10/9£971

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 13 September 2026.

Thu 28/108:15 -

2 stops15h 05m

Sun 31/118:30 -

2 stops16h 25m

Deal found 7/9£598

Mon 2/1110:55 -

1 stop38h 25m

Mon 16/1120:15 -

1 stop31h 40m

Deal found 12/9£669

Thu 28/117:20 -

1 stop22h 40m

Sun 31/111:45 -

1 stop16h 10m

Deal found 7/9£672

Tue 20/1017:35 -

1 stop22h 05m

Sat 24/1011:25 -

1 stop23h 55m

Deal found 7/9£694

Wed 7/1007:00 -

2 stops17h 15m

Wed 14/1015:45 -

1 stop10h 05m

Deal found 7/9£764

Wed 2/1210:55 -

1 stop37h 25m

Tue 8/1211:45 -

1 stop16h 10m

Deal found 12/9£724

Sun 1/1110:55 -

1 stop30h 05m

Sun 8/1111:45 -

1 stop16h 10m

Deal found 8/9£755

Wed 7/1010:50 -

1 stop28h 50m

Wed 21/1011:25 -

1 stop23h 15m

Deal found 9/9£760

Fri 6/1117:20 -

2 stops34h 20m

Sat 14/1114:55 -

2 stops19h 25m

Deal found 8/9£1,034

Tue 17/1117:20 -

1 stop22h 40m

Tue 1/1211:45 -

1 stop16h 10m

Deal found 9/9£800

Sun 4/1013:15 -

3 stops30h 10m

Wed 21/1012:10 -

2 stops18h 00m

Deal found 9/9£1,071

Sat 7/1110:55 -

2 stops40h 45m

Sat 14/1114:55 -

2 stops19h 25m

Deal found 8/9£1,074

Sat 17/1017:45 -

1 stop21h 55m

Sat 24/1011:25 -

1 stop17h 30m

Deal found 9/9£820

Sun 4/1017:35 -

2 stops33h 46m

Fri 9/1008:00 -

2 stops43h 55m

Deal found 11/9£1,056

Thu 15/1017:35 -

2 stops33h 46m

Wed 21/1008:00 -

2 stops50h 40m

Deal found 7/9£1,056

Wed 14/1017:45 -

2 stops33h 36m

Wed 21/1008:00 -

2 stops26h 40m

Deal found 10/9£1,056

Sun 4/1010:50 -

2 stops40h 31m

Wed 21/1008:00 -

2 stops26h 40m

Deal found 9/9£1,056

Mon 12/1010:50 -

2 stops40h 31m

Sat 17/1008:00 -

2 stops26h 40m

Deal found 8/9£1,056

Sun 4/1017:35 -

2 stops33h 46m

Mon 12/1008:00 -

2 stops26h 40m

Deal found 12/9£1,077

Fri 9/1017:35 -

2 stops33h 46m

Mon 12/1008:00 -

2 stops26h 40m

Deal found 12/9£1,077

Find flight deals from Stansted to Illinois

Round-trip from	£526
One-way from	£347
Popular in	August
Cheapest in	February
Average price	£588

14/10-21/10
2 total stops
25h 35m total
London to Illinois

Search Deals

19/2-31/12
2 total stops
39h 15m total
London to Illinois

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£63 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

Tue 20/10

18:55-12:40

2 stops47h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£369

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 18/9

14:10-18:15

3 stops34h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£395

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Tue 27/10

08:55-17:40

3 stops37h 45m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£455

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Fri 9/10

06:20-15:44

2 stops39h 24m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£483

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 7/10

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£486

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Sat 3/10

19:35-16:34

3 stops50h 59m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£489

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 26/9

08:45-11:00

3 stops32h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£491

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Sat 24/10

10:40-12:35

3 stops55h 55m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£512

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 8/10

22:00-14:00

1 stop22h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£526

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 24/10

18:00-15:10

1 stop27h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£529

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 37 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 38h 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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Gatwick to O'Hare 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 £347

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/2. 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 13 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 13 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 13 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 13 September 2026.

Last-minute flights from Stansted to IllinoisDiscover last-minute flight deals from Stansted to Illinois. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Illinois. Data last updated 13 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 13 September 2026.

Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 13 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.

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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 13 September 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 13 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 13 September 2026.

Last-minute flights from Stansted to Illinois
Discover last-minute flight deals from Stansted to Illinois. Data last updated 13 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 13 September 2026.