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

Departing from London Stansted Airport to Illinois will take you 21h 55m. 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.

£348+ 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 6 September 2026.

Fri 11/906:35 -

1 stop13h 25m

Sat 19/915:45 -

1 stop10h 05m

Deal found 4/9£529

Thu 29/1007:55 -

2 stops15h 25m

Sat 7/1118:30 -

2 stops15h 40m

Deal found 4/9£531

Thu 15/1008:30 -

1 stop16h 45m

Thu 22/1015:45 -

1 stop10h 05m

Deal found 3/9£533

Tue 20/1008:30 -

2 stops17h 25m

Sat 31/1012:50 -

2 stops18h 10m

Deal found 4/9£536

Sat 17/1011:10 -

1 stop14h 05m

Sat 24/1021:00 -

1 stop13h 15m

Deal found 5/9£539

Fri 11/906:35 -

2 stops17h 40m

Fri 18/919:25 -

2 stops21h 55m

Deal found 1/9£540

Thu 22/1008:15 -

2 stops34h 20m

Thu 5/1116:20 -

2 stops18h 55m

Deal found 4/9£541

Wed 28/1016:40 -

2 stops31h 10m

Sun 6/1215:55 -

1 stop9h 55m

Deal found 1/9£543

Tue 3/1107:15 -

2 stops16h 05m

Thu 26/1118:30 -

2 stops16h 55m

Deal found 1/9£547

Mon 21/917:40 -

2 stops26h 35m

Tue 29/917:10 -

2 stops24h 40m

Deal found 3/9£548

Thu 5/1107:55 -

2 stops15h 25m

Mon 16/1115:55 -

1 stop12h 25m

Deal found 4/9£550

Thu 5/1107:55 -

2 stops15h 25m

Wed 11/1115:55 -

1 stop9h 55m

Deal found 3/9£550

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 6 September 2026.

Sat 10/1017:45 -

1 stop21h 55m

Thu 15/1020:10 -

1 stop38h 40m

Deal found 4/9£678

Mon 12/1014:55 -

3 stops33h 46m

Tue 20/1008:55 -

2 stops21h 05m

Deal found 6/9£1,080

Thu 19/1110:55 -

1 stop29h 05m

Sat 5/1211:45 -

1 stop22h 35m

Deal found 3/9£680

Fri 30/1017:20 -

1 stop22h 40m

Sun 6/1211:45 -

1 stop16h 10m

Deal found 1/9£690

Thu 8/1017:35 -

1 stop22h 05m

Tue 13/1011:25 -

1 stop23h 25m

Deal found 6/9£695

Fri 9/1010:50 -

1 stop28h 50m

Tue 13/1011:25 -

1 stop23h 25m

Deal found 2/9£705

Thu 1/1017:35 -

1 stop22h 05m

Tue 13/1011:25 -

1 stop23h 25m

Deal found 1/9£727

Wed 30/910:50 -

1 stop28h 50m

Mon 12/1011:25 -

1 stop23h 15m

Deal found 1/9£741

Thu 15/1017:35 -

1 stop22h 05m

Mon 19/1020:10 -

1 stop31h 45m

Deal found 6/9£745

Sun 25/1017:20 -

1 stop31h 00m

Sat 7/1121:15 -

1 stop30h 40m

Deal found 6/9£760

Fri 9/1017:35 -

1 stop22h 05m

Mon 12/1020:10 -

1 stop31h 45m

Deal found 1/9£769

Sat 28/1110:55 -

1 stop29h 05m

Thu 3/1220:15 -

1 stop38h 05m

Deal found 2/9£770

Sun 22/1117:20 -

1 stop31h 00m

Tue 8/1220:15 -

1 stop38h 05m

Deal found 6/9£770

Wed 28/1010:55 -

2 stops33h 48m

Tue 3/1107:30 -

2 stops44h 25m

Deal found 6/9£1,055

Tue 20/1017:35 -

2 stops33h 46m

Tue 27/1007:30 -

2 stops45h 25m

Deal found 5/9£1,055

Tue 16/217:20 -

2 stops52h 21m

Tue 2/307:33 -

2 stops44h 22m

Deal found 4/9£1,055

Tue 20/1017:35 -

2 stops33h 46m

Tue 3/1107:30 -

2 stops50h 50m

Deal found 4/9£1,055

Tue 24/1117:20 -

2 stops34h 20m

Mon 30/1107:30 -

2 stops44h 25m

Deal found 4/9£1,055

Mon 12/1010:50 -

2 stops40h 31m

Tue 20/1008:00 -

2 stops26h 50m

Deal found 6/9£1,056

Sat 7/1110:55 -

2 stops40h 45m

Sat 14/1107:30 -

2 stops20h 25m

Deal found 4/9£1,095

Wed 21/1017:45 -

2 stops33h 36m

Thu 12/1107:30 -

2 stops26h 50m

Deal found 3/9£1,128

Wed 30/910:50 -

2 stops40h 31m

Wed 7/1008:00 -

2 stops26h 40m

Deal found 2/9£1,131

Wed 2/1210:55 -

2 stops41h 02m

Tue 8/1206:33 -

2 stops51h 47m

Deal found 2/9£1,131

Thu 1/1017:35 -

2 stops33h 46m

Sat 10/1008:00 -

2 stops26h 40m

Deal found 5/9£1,132

Find flight deals from Stansted to Illinois

Round-trip from	£529
One-way from	£348
Popular in	August
Cheapest in	February
Average price	£589

9/10-14/10
2 total stops
25h 30m total
London to Illinois

Search Deals

27/1-31/12
1 total stop
24h 55m 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

Fri 2/10

21:25-16:05

2 stops24h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£379

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Fri 9/10

06:10-23:59

3 stops47h 49m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£403

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 31/12

06:45-17:20

2 stops16h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£414

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sat 19/9

07:20-20:12

2 stops18h 52m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£419

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Sun 4/10

07:35-17:50

3 stops40h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£433

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 18/1

12:30-19:15

1 stop12h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£435

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Fri 18/9

06:35-19:48

2 stops19h 13m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£446

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Wed 23/9

12:25-17:54

3 stops35h 29m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£449

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 28/10

07:15-15:10

1 stop12h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£452

LondonSt. Louis

STN London Stansted - STL Lambert-St Louis

STNSTL

London Stansted

Thu 15/10

08:30-17:40

3 stops39h 10m

Lambert-St Louis

Wed 31/12

00:00-07:00

Nonstop0h 00m

£488

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 43 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 21h 55m. 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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Complete your trip

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Top destinations

Alternative routes for Stansted to Illinois

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Gatwick to Fort Lauderdale flights

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London City to San Francisco flights

Luton to Orlando flights

Heathrow to Denver 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 £348

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/1. 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 6 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 6 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 6 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 6 September 2026.

Last-minute flights from Stansted to IllinoisDiscover last-minute flight deals from Stansted to Illinois. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Illinois. Data last updated 6 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 6 September 2026.

Search for one-way flight options from Stansted to Illinois. Find affordable one-way fares based on user searches. Data last updated 6 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 6 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

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 6 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 6 September 2026.

Last-minute flights from Stansted to Illinois
Discover last-minute flight deals from Stansted to Illinois. Data last updated 6 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 6 September 2026.