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.

£376+ Cheap Flights from London Stansted Airport to Illinois

Cheap flight deals from Stansted to Illinois

Enter your travel dates to find the best prices.

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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 22 October 2026.

Fri 13/1107:45 -

2 stops15h 35m

Mon 16/1118:30 -

2 stops14h 40m

Deal found 20/10£512

Wed 11/1112:45 -

2 stops34h 00m

Wed 18/1119:10 -

2 stops20h 10m

Deal found 20/10£513

Wed 11/1108:15 -

2 stops15h 05m

Sun 15/1120:10 -

2 stops21h 05m

Deal found 20/10£515

Wed 4/1112:45 -

2 stops34h 35m

Wed 11/1118:30 -

2 stops22h 50m

Deal found 20/10£521

Wed 18/1114:30 -

2 stops32h 15m

Mon 23/1119:10 -

2 stops20h 45m

Deal found 19/10£521

Sat 21/1116:15 -

2 stops29h 15m

Fri 27/1120:10 -

2 stops21h 40m

Deal found 17/10£524

Sun 22/1120:55 -

2 stops25h 50m

Wed 2/1219:10 -

2 stops17h 20m

Deal found 22/10£524

Mon 9/1109:45 -

2 stops37h 35m

Fri 13/1120:10 -

1 stop18h 20m

Deal found 22/10£527

Mon 2/1113:30 -

2 stops33h 15m

Mon 16/1119:10 -

2 stops20h 15m

Deal found 18/10£531

Sat 21/1106:35 -

2 stops16h 45m

Sat 5/1218:30 -

2 stops21h 10m

Deal found 20/10£533

Find flight deals from Stansted to Illinois

Round-trip from	£512
One-way from	£376
Popular in	August
Cheapest in	February
Average price	£648

13/11-16/11
4 total stops
30h 15m total
London to Illinois

Search Deals

15/12-31/12
1 total stop
17h 05m total
London to Illinois

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£58 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 October 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 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

Sat 19/12

20:25-14:10

1 stop23h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£399

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 18/12

06:45-14:10

1 stop13h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£415

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Tue 10/11

08:15-00:21

3 stops22h 06m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£418

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 19/11

06:45-14:10

1 stop13h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£488

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 7/12

06:35-14:10

1 stop13h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£490

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 30/11

06:35-18:20

1 stop17h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£491

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 7/11

11:50-18:20

1 stop12h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£518

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 12/11

07:55-17:20

2 stops15h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£548

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 30/10

10:35-11:00

2 stops29h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£557

Flights are sorted by cheapest return flights first.

Deals found on 17/10

Showing 1-10 of 23 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

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

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.

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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 £376

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/12. 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 22 October 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 22 October 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 22 October 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 22 October 2026.

Last-minute flights from Stansted to IllinoisDiscover last-minute flight deals from Stansted to Illinois. Data last updated 22 October 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Illinois. Data last updated 22 October 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 22 October 2026.

Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 22 October 2026.

Find flight deals from Stansted to Illinois

Round-trip from

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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 22 October 2026.

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Can Cheapflights find flights from Stansted to Illinois with no change fees?

Can Cheapflights notify me if prices for flights from Stansted to Illinois become cheaper?

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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 22 October 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 22 October 2026.

Last-minute flights from Stansted to Illinois
Discover last-minute flight deals from Stansted to Illinois. Data last updated 22 October 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 22 October 2026.