What is the cheapest month to book a flight from Illinois to London Stansted Airport?

Currently, January is the cheapest month in which you can book a flight from Illinois to London Stansted Airport (average of £55). Flying from Illinois to London Stansted Airport in July is currently the most expensive (average of £103). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

In terms of precipitation, rainfall in London Stansted Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Stansted Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Stansted Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Illinois to London Stansted Airport?

The most popular route from Illinois to London Stansted Airport is Chicago O'Hare Intl - London Stansted. You may also consider Lambert-St Louis - London Stansted or Chicago Midway - London Stansted.

What is the cheapest time of day to fly from IL to STN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to London Stansted Airport as you normally would.

Can I find deals for flights from Illinois to Stansted that include hotel bookings?

Yes. In addition to deals on Illinois to Stansted flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Illinois to Stansted?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Stansted.

Can I find deals for business class flights from Illinois to Stansted?

Yes. Cheapflights offers flight deals from Illinois to Stansted by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£169+ Flights from Illinois to London Stansted Airport

Cheap flight deals from Illinois to Stansted

Round-trip from	£370
One-way from	£169
Popular in	June
Cheapest in	February
Average price	£483

1/12-14/12
4 total stops
30h 40m total
Illinois to London

Search Deals

28/11
2 total stops
21h 55m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£112 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Illinois to Stansted

Cheapest flights from Illinois to Stansted
Explore the most affordable flight options available from Illinois to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Mon 1/1218:30ORD - STN

2 stops13h 50mMultiple Airlines

Sun 14/1206:30STN - ORD

2 stops16h 50mMultiple Airlines

Deal found 15/9£370

Fri 28/1118:30ORD - STN

2 stops20h 05mMultiple Airlines

Fri 5/1205:55STN - ORD

2 stops17h 25mMultiple Airlines

Deal found 14/9£372

Wed 5/1115:35ORD - STN

2 stops23h 20mMultiple Airlines

Tue 11/1107:40STN - ORD

2 stops18h 20mMultiple Airlines

Deal found 15/9£375

Mon 22/908:40ORD - STN

2 stops20h 00mMultiple Airlines

Tue 30/907:15STN - ORD

2 stops32h 36mMultiple Airlines

Deal found 15/9£375

Fri 7/1118:30ORD - STN

2 stops14h 20mMultiple Airlines

Sun 9/1106:30STN - ORD

2 stops16h 50mMultiple Airlines

Deal found 13/9£376

Tue 14/1014:00ORD - STN

2 stops16h 00mMultiple Airlines

Tue 21/1021:45STN - ORD

2 stops28h 32mMultiple Airlines

Deal found 15/9£378

Fri 7/1118:30ORD - STN

2 stops18h 00mMultiple Airlines

Fri 14/1105:55STN - ORD

2 stops17h 25mMultiple Airlines

Deal found 16/9£378

Wed 26/1118:30ORD - STN

2 stops20h 25mMultiple Airlines

Mon 1/1221:20STN - ORD

2 stops26h 00mMultiple Airlines

Deal found 16/9£379

Mon 6/1010:40ORD - STN

2 stops19h 45mMultiple Airlines

Tue 14/1022:05STN - ORD

2 stops23h 50mMultiple Airlines

Deal found 14/9£381

Wed 22/1010:40ORD - STN

2 stops19h 10mMultiple Airlines

Tue 28/1021:20STN - ORD

2 stops25h 00mMultiple Airlines

Deal found 16/9£382

Tue 11/1112:50ORD - STN

2 stops25h 40mMultiple Airlines

Tue 18/1107:40STN - ORD

2 stops18h 20mMultiple Airlines

Deal found 16/9£383

Wed 15/1013:30STL - STN

3 stops24h 15mMultiple Airlines

Tue 21/1020:00STN - STL

3 stops25h 18mMultiple Airlines

Deal found 16/9£565

Best flights from Illinois to Stansted
Discover carefully curated flight deals from Illinois to Stansted that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Fri 28/1118:30ORD - STN

2 stops20h 05mMultiple Airlines

Fri 5/1205:55STN - ORD

2 stops17h 25mMultiple Airlines

Deal found 14/9£372

Tue 14/1014:00ORD - STN

2 stops16h 00mMultiple Airlines

Tue 21/1021:45STN - ORD

2 stops28h 32mMultiple Airlines

Deal found 15/9£378

Wed 26/1118:30ORD - STN

2 stops20h 25mMultiple Airlines

Mon 1/1221:20STN - ORD

2 stops26h 00mMultiple Airlines

Deal found 16/9£390

Thu 13/1119:20ORD - STN

2 stops22h 00mMultiple Airlines

Sun 16/1112:00STN - ORD

2 stops34h 45mMultiple Airlines

Deal found 14/9£394

Wed 29/1016:50ORD - STN

1 stop10h 00mMultiple Airlines

Wed 5/1108:30STN - ORD

1 stop11h 30mMultiple Airlines

Deal found 14/9£397

Tue 7/1010:40ORD - STN

2 stops20h 00mMultiple Airlines

Tue 21/1022:05STN - ORD

2 stops23h 50mMultiple Airlines

Deal found 16/9£407

Sun 2/1119:20ORD - STN

2 stops21h 40mMultiple Airlines

Fri 7/1115:15STN - ORD

3 stops31h 30mMultiple Airlines

Deal found 15/9£408

Wed 3/1207:15ORD - STN

3 stops28h 35mMultiple Airlines

Tue 9/1221:45STN - ORD

2 stops23h 25mMultiple Airlines

Deal found 14/9£410

Wed 15/1009:55ORD - STN

2 stops19h 55mMultiple Airlines

Wed 29/1005:55STN - ORD

2 stops18h 30mMultiple Airlines

Deal found 16/9£414

Wed 8/1010:40ORD - STN

3 stops24h 15mMultiple Airlines

Tue 14/1022:05STN - ORD

2 stops23h 50mMultiple Airlines

Deal found 14/9£416

Wed 15/1013:30STL - STN

3 stops24h 15mMultiple Airlines

Tue 21/1020:00STN - STL

3 stops25h 18mMultiple Airlines

Deal found 16/9£565

Wed 1/1013:30STL - STN

2 stops21h 25mMultiple Airlines

Thu 9/1017:50STN - STL

2 stops25h 40mMultiple Airlines

Deal found 15/9£684

Mon 13/1016:05STL - STN

2 stops16h 15mMultiple Airlines

Mon 20/1006:25STN - STL

2 stops19h 13mMultiple Airlines

Deal found 15/9£752

Thu 2/1009:15STL - STN

3 stops25h 35mMultiple Airlines

Tue 14/1020:00STN - STL

3 stops29h 38mMultiple Airlines

Deal found 15/9£763

Fri 17/1009:15STL - STN

2 stops29h 50mMultiple Airlines

Fri 24/1017:45STN - STL

3 stops27h 33mMultiple Airlines

Deal found 16/9£864

Thu 30/1016:05STL - STN

3 stops26h 30mMultiple Airlines

Thu 6/1120:05STN - STL

3 stops33h 51mMultiple Airlines

Deal found 15/9£901

Thu 2/1016:05STL - STN

2 stops17h 40mMultiple Airlines

Wed 15/1020:10STN - STL

3 stops25h 08mMultiple Airlines

Deal found 15/9£903

Wed 10/1215:50STL - STN

2 stops23h 15mMultiple Airlines

Sun 14/1205:55STN - STL

3 stops24h 03mMultiple Airlines

Deal found 16/9£925

Last-minute flights from Illinois to Stansted
Discover last-minute flight deals from Illinois to Stansted. Data last updated 17 September 2025 and is based on user searches.

Mon 22/908:40ORD - STN

2 stops20h 00mMultiple Airlines

Tue 30/907:15STN - ORD

2 stops32h 36mMultiple Airlines

Deal found 15/9£375

Tue 30/914:00ORD - STN

2 stops16h 40mMultiple Airlines

Tue 7/1022:05STN - ORD

2 stops28h 12mMultiple Airlines

Deal found 15/9£395

Wed 1/1013:30STL - STN

2 stops21h 25mMultiple Airlines

Thu 9/1017:50STN - STL

2 stops25h 40mMultiple Airlines

Deal found 15/9£684

Thu 2/1009:15STL - STN

3 stops25h 35mMultiple Airlines

Tue 14/1020:00STN - STL

3 stops29h 38mMultiple Airlines

Deal found 15/9£763

Mon 6/1010:40ORD - STN

2 stops19h 45mMultiple Airlines

Tue 14/1022:05STN - ORD

2 stops23h 50mMultiple Airlines

Deal found 14/9£381

Fri 10/1019:25ORD - STN

2 stops18h 00mMultiple Airlines

Wed 15/1007:30STN - ORD

2 stops19h 45mMultiple Airlines

Deal found 16/9£383

Mon 13/1016:05STL - STN

2 stops16h 15mMultiple Airlines

Mon 20/1006:25STN - STL

2 stops19h 13mMultiple Airlines

Deal found 15/9£752

Tue 14/1014:00ORD - STN

2 stops16h 00mMultiple Airlines

Tue 21/1021:45STN - ORD

2 stops28h 32mMultiple Airlines

Deal found 15/9£378

Wed 15/1013:30STL - STN

3 stops24h 15mMultiple Airlines

Tue 21/1020:00STN - STL

3 stops25h 18mMultiple Airlines

Deal found 16/9£565

Thu 16/1019:25ORD - STN

2 stops16h 00mMultiple Airlines

Thu 23/1007:35STN - ORD

2 stops16h 40mMultiple Airlines

Deal found 16/9£392

Wed 22/1010:40ORD - STN

2 stops21h 10mMultiple Airlines

Tue 28/1021:20STN - ORD

2 stops25h 00mMultiple Airlines

Deal found 15/9£372

Tue 28/1007:15ORD - STN

3 stops21h 35mMultiple Airlines

Thu 6/1121:30STN - ORD

2 stops23h 40mMultiple Airlines

Deal found 14/9£389

One-way flights from Illinois to Stansted
Search for one-way flight options from Illinois to Stansted. Find affordable one-way fares based on user searches. Data last updated 17 September 2025.

Fri 28/1120:15ORD - STN

2 stops21h 55mMultiple Airlines

Deal found 13/9£169

Wed 12/1119:10ORD - STN

2 stops21h 05mMultiple Airlines

Deal found 13/9£173

Fri 24/1018:00ORD - STN

2 stops23h 10mMultiple Airlines

Deal found 15/9£174

Sun 2/1120:25ORD - STN

2 stops35h 40mMultiple Airlines

Deal found 14/9£177

Fri 7/1120:15ORD - STN

2 stops21h 55mMultiple Airlines

Deal found 16/9£178

Mon 20/1006:40ORD - STN

2 stops43h 00mMultiple Airlines

Deal found 15/9£179

Sun 19/1018:00ORD - STN

2 stops48h 10mMultiple Airlines

Deal found 16/9£180

Sun 9/1120:25ORD - STN

2 stops29h 20mMultiple Airlines

Deal found 15/9£180

Wed 5/1119:10ORD - STN

2 stops22h 30mMultiple Airlines

Deal found 15/9£181

Thu 16/1018:00ORD - STN

2 stops21h 55mMultiple Airlines

Deal found 14/9£182

Mon 9/210:15ORD - STN

2 stops24h 40mMultiple Airlines

Deal found 15/9£186

Tue 11/1118:26MDW - STN

3 stops22h 44mMultiple Airlines

Deal found 16/9£197

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Fri 28/11

18:30-20:35

2 stops20h 05m

London Stansted

Fri 5/12

05:55-17:20

2 stops17h 25m

£372

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 14/10

14:00-12:00

2 stops16h 00m

London Stansted

Tue 21/10

21:45-20:17

2 stops28h 32m

£378

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 26/11

18:30-20:55

2 stops20h 25m

London Stansted

Mon 1/12

21:20-17:20

2 stops26h 00m

£390

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 13/11

19:20-23:20

2 stops22h 00m

London Stansted

Sun 16/11

12:00-16:45

2 stops34h 45m

£394

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 29/10

16:50-07:50

1 stop10h 00m

London Stansted

Wed 5/11

08:30-14:00

1 stop11h 30m

£397

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 7/10

10:40-12:40

2 stops20h 00m

London Stansted

Tue 21/10

22:05-15:55

2 stops23h 50m

£407

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Sun 2/11

19:20-23:00

2 stops21h 40m

London Stansted

Fri 7/11

15:15-16:45

3 stops31h 30m

£408

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 3/12

07:15-17:50

3 stops28h 35m

London Stansted

Tue 9/12

21:45-15:10

2 stops23h 25m

£410

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 15/10

09:55-11:50

2 stops19h 55m

London Stansted

Wed 29/10

05:55-19:25

2 stops18h 30m

£414

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Wed 8/10

10:40-16:55

3 stops24h 15m

London Stansted

Tue 14/10

22:05-15:55

2 stops23h 50m

£416

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 45 results

...

Best time to book a flight from Illinois to Stansted

Have a flexible travel schedule? Discover the best time to fly to Stansted from Illinois with our price prediction graph.

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 Illinois to London Stansted Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

What are the most popular routes from Illinois to London Stansted Airport?
The most popular route from Illinois to London Stansted Airport is Chicago O'Hare Intl - London Stansted. You may also consider Lambert-St Louis - London Stansted or Chicago Midway - London Stansted.
Can I find deals for flights from Illinois to Stansted that include hotel bookings?
Yes. In addition to deals on Illinois to Stansted flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Stansted?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Stansted.
Can I find deals for business class flights from Illinois to Stansted?
Yes. Cheapflights offers flight deals from Illinois to Stansted by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Illinois to London Stansted Airport?
Currently, January is the cheapest month in which you can book a flight from Illinois to London Stansted Airport (average of £55). Flying from Illinois to London Stansted Airport in July is currently the most expensive (average of £103). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Croydon

Hounslow

Slough

Gatwick

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Winchester

Chichester

Ipswich

Dartford

Guildford

Brentford

Bishop's Stortford

Romford

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How does Cheapflights help users find flights from Illinois to Stansted?

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 Stansted from Illinois today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Illinois to Stansted?

Cheapflights simply makes it quick and affordable to book flights from Illinois to Stansted by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Stansted from Illinois 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 Illinois to Stansted become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Stansted from Illinois today and book when prices fit your budget.

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Cheap flights from Illinois to London Stansted Airport from £169

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Stansted

Keep the following information in mind while searching for Illinois to Stansted flight deals. Data was last updated 17 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Illinois to Stansted

Cheapest flights from Illinois to StanstedExplore the most affordable flight options available from Illinois to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Explore the most affordable flight options available from Illinois to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to London Stansted Airport that are best for you.

Best time to book a flight from Illinois to Stansted

Have a flexible travel schedule? Discover the best time to fly to Stansted from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to London Stansted Airport

Related info for your journey

Find useful and relevant information for your journey from Illinois to Stansted. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the most popular routes from Illinois to London Stansted Airport?

Can I find deals for flights from Illinois to Stansted that include hotel bookings?

How can I find direct flights from Illinois to Stansted?

Can I find deals for business class flights from Illinois to Stansted?

What is the cheapest month to book a flight from Illinois to London Stansted Airport?

Travelling to a place near London Stansted Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Stansted

See prices for flight routes from nearby airports that may be better suited for you.

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Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Stansted?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Stansted?

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

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

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Cheapest flights from Illinois to Stansted
Explore the most affordable flight options available from Illinois to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.