How do I get Price Alerts for flights from London Stansted Airport to Illinois?

Price Alerts will notify you by email when the price for flights to Illinois from London Stansted Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from London Stansted Airport to Illinois with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from London Stansted Airport to Illinois?

Prices for flights from London Stansted Airport to Illinois are updated daily.

How old do you have to be to fly from London Stansted Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Stansted Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£343 Cheap Flights from London Stansted Airport to Illinois in 2026

Find the cheapest flights from London Stansted Airport to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:30 - 14:00STN London Stansted-ORD Chicago O'Hare Intl

13h 30m1 stop Dublin

21:00 - 21:20ORD Chicago O'Hare Intl-STN London Stansted

18h 20m1 stop Dublin

£479Multiple Airlines

Wed, 16 Sep - Wed, 23 Sep

06:30 - 14:00STN London Stansted-ORD Chicago O'Hare Intl

13h 30m1 stop Dublin

16:55 - 09:35ORD Chicago O'Hare Intl-STN London Stansted

11h 40m1 stop Dublin

£483Multiple Airlines

Wed, 21 Oct - Sat, 31 Oct

11:10 - 16:10STN London Stansted-ORD Chicago O'Hare Intl

35h 00m3 stops Dublin Stockholm Arlanda Kastrup Copenhagen

19:15 - 23:25ORD Chicago O'Hare Intl-STN London Stansted

22h 10m2 stops Kastrup Copenhagen Dublin

£498Multiple Airlines

Mon, 12 Oct - Sun, 18 Oct

13:15 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

12h 00m1 stop Dublin

21:05 - 13:35ORD Chicago O'Hare Intl-STN London Stansted

11h 30m1 stop Dublin

£531Multiple Airlines

Thu, 22 Oct - Thu, 29 Oct

13:15 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

12h 00m1 stop Dublin

21:05 - 14:55ORD Chicago O'Hare Intl-STN London Stansted

12h 50m1 stop Dublin

£531Multiple Airlines

Thu, 22 Oct - Fri, 30 Oct

15:10 - 16:10STN London Stansted-ORD Chicago O'Hare Intl

31h 00m3 stops Milan Malpensa Stockholm Arlanda Kastrup Copenhagen

20:15 - 22:20ORD Chicago O'Hare Intl-STN London Stansted

21h 05m2 stops Kastrup Copenhagen Milan Malpensa

£532Multiple Airlines

Tue, 20 Oct - Tue, 27 Oct

08:30 - 14:00STN London Stansted-ORD Chicago O'Hare Intl

11h 30m1 stop Dublin

21:00 - 17:05ORD Chicago O'Hare Intl-STN London Stansted

14h 05m1 stop Dublin

£532Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

21:20 - 16:10STN London Stansted-ORD Chicago O'Hare Intl

24h 50m2 stops Milan Malpensa Kastrup Copenhagen

19:15 - 00:10ORD Chicago O'Hare Intl-STN London Stansted

22h 55m3 stops Kastrup Copenhagen Stockholm Arlanda Milan Malpensa

£532Multiple Airlines

Wed, 30 Sep - Wed, 14 Oct

06:30 - 18:15STN London Stansted-ORD Chicago O'Hare Intl

17h 45m2 stops Dublin Reykjavik Keflavik Intl

19:25 - 19:25ORD Chicago O'Hare Intl-STN London Stansted

18h 00m2 stops Reykjavik Keflavik Intl Dublin

£534Multiple Airlines

Mon, 14 Sep - Mon, 28 Sep

08:30 - 14:00STN London Stansted-ORD Chicago O'Hare Intl

11h 30m1 stop Dublin

21:00 - 17:05ORD Chicago O'Hare Intl-STN London Stansted

14h 05m1 stop Dublin

£534Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:10 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

14h 05m1 stop Dublin

21:00 - 17:05ORD Chicago O'Hare Intl-STN London Stansted

14h 05m1 stop Dublin

£542Multiple Airlines

Mon, 31 Aug - Mon, 7 Sep

12:00 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

13h 15m1 stop Dublin

15:45 - 07:50ORD Chicago O'Hare Intl-STN London Stansted

10h 05m1 stop Dublin

£563Multiple Airlines

Thu, 3 Sep - Sat, 19 Sep

06:25 - 21:25STN London Stansted-ORD Chicago O'Hare Intl

21h 00m2 stops Berlin Brandenburg Reykjavik Keflavik Intl

19:25 - 22:05ORD Chicago O'Hare Intl-STN London Stansted

20h 40m2 stops Reykjavik Keflavik Intl Berlin Brandenburg

£601Multiple Airlines

Wed, 2 Sep - Wed, 9 Sep

17:35 - 15:10STN London Stansted-ORD Chicago O'Hare Intl

27h 35m2 stops Barcelona-El Prat Paris Charles de Gaulle

17:10 - 20:25ORD Chicago O'Hare Intl-STN London Stansted

21h 15m2 stops Paris Charles de Gaulle Barcelona-El Prat

£631Multiple Airlines

Thu, 3 Sep - Sun, 6 Sep

13:15 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

12h 00m1 stop Dublin

15:45 - 07:50ORD Chicago O'Hare Intl-STN London Stansted

10h 05m1 stop Dublin

£653Multiple Airlines

Thu, 3 Sep - Sun, 6 Sep

13:15 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

12h 00m1 stop Dublin

15:45 - 07:50ORD Chicago O'Hare Intl-STN London Stansted

10h 05m1 stop Dublin

£654Multiple Airlines

Thu, 3 Sep - Sun, 6 Sep

13:15 - 19:15STN London Stansted-ORD Chicago O'Hare Intl

12h 00m1 stop Dublin

15:45 - 07:50ORD Chicago O'Hare Intl-STN London Stansted

10h 05m1 stop Dublin

£655Multiple Airlines

Thu, 3 Sep - Mon, 7 Sep

22:45 - 14:00STN London Stansted-ORD Chicago O'Hare Intl

21h 15m1 stop Dublin

15:45 - 11:35ORD Chicago O'Hare Intl-STN London Stansted

13h 50m1 stop Dublin

£659Multiple Airlines

Wed, 2 Sep - Wed, 9 Sep

22:00 - 16:00STN London Stansted-ORD Chicago O'Hare Intl

24h 00m2 stops Dublin Lisbon Humberto Delgado

19:25 - 16:50ORD Chicago O'Hare Intl-STN London Stansted

15h 25m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£661Multiple Airlines

Thu, 3 Sep - Mon, 7 Sep

06:30 - 19:52STN London Stansted-ORD Chicago O'Hare Intl

19h 22m2 stops Dublin Toronto Pearson Intl

18:30 - 16:55ORD Chicago O'Hare Intl-STN London Stansted

16h 25m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£680Multiple Airlines

Tue, 1 Sep - Sun, 1 Nov

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Turkish Airlines flights from London Stansted Airport to Illinois

Our best Turkish Airlines deals on London Stansted Airport to Illinois flight tickets

Turkish Airlines

13 Oct

STN17:35London Stansted

33h 46m

2 stops

STL21:21Lambert-St Louis

20 Oct

STL08:00Lambert-St Louis

19h 55m

2 stops

STN09:55London Stansted

£1,057

Turkish Airlines

1 Oct

STN17:35London Stansted

33h 46m

2 stops

STL21:21Lambert-St Louis

10 Oct

STL08:00Lambert-St Louis

26h 40m

2 stops

STN16:40London Stansted

£1,059

Turkish Airlines

8 Oct

STN17:35London Stansted

33h 46m

2 stops

STL21:21Lambert-St Louis

15 Oct

STL08:00Lambert-St Louis

19h 55m

2 stops

STN09:55London Stansted

£1,061

momondo 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 16/9

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Wed 23/9

21:00-21:20

1 stop18h 20m

£479

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 21/10

06:30-14:00

1 stop13h 30m

Chicago O'Hare Intl

Sat 31/10

16:55-09:35

1 stop11h 40m

£483

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 12/10

11:10-16:10

3 stops35h 00m

Chicago O'Hare Intl

Sun 18/10

19:15-23:25

2 stops22h 10m

£498

Fastest return journey

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 22/10

13:15-19:15

1 stop12h 00m

Chicago O'Hare Intl

Thu 29/10

21:05-13:35

1 stop11h 30m

£531

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Thu 22/10

13:15-19:15

1 stop12h 00m

Chicago O'Hare Intl

Fri 30/10

21:05-14:55

1 stop12h 50m

£531

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Tue 20/10

15:10-16:10

3 stops31h 00m

Chicago O'Hare Intl

Tue 27/10

20:15-22:20

2 stops21h 05m

£532

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 12/10

08:30-14:00

1 stop11h 30m

Chicago O'Hare Intl

Mon 19/10

21:00-17:05

1 stop14h 05m

£532

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Wed 30/9

21:20-16:10

2 stops24h 50m

Chicago O'Hare Intl

Wed 14/10

19:15-00:10

3 stops22h 55m

£532

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 14/9

06:30-18:15

2 stops17h 45m

Chicago O'Hare Intl

Mon 28/9

19:25-19:25

2 stops18h 00m

£534

LondonChicago

STN London Stansted - ORD Chicago O'Hare Intl

STNORD

London Stansted

Mon 12/10

08:30-14:00

1 stop11h 30m

Chicago O'Hare Intl

Mon 19/10

21:00-17:05

1 stop14h 05m

£534

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Cheap London Stansted Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Illinois

Best price found	£343
Fastest flight time	12h 00m
Direct flights	None

The best one-way flight to Illinois from London Stansted Airport in the past 72 hours is £343. The best return flight deal from London Stansted Airport to Illinois found on momondo in the last 72 hours is £479.

The fastest flight from London Stansted Airport to Illinois takes 12h 00m

There are no direct flights from London Stansted Airport to Illinois. There are no popular flight routes from London Stansted Airport to Illinois.

Search flight deals

Frequently asked questions about flying from London Stansted Airport to Illinois

When did momondo last update prices for flights from London Stansted Airport to Illinois?
Prices for flights from London Stansted Airport to Illinois are updated daily.
How old do you have to be to fly from London Stansted Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Stansted Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from London Stansted Airport to Illinois

How do I get Price Alerts for flights from London Stansted Airport to Illinois?
Price Alerts will notify you by email when the price for flights to Illinois from London Stansted Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from London Stansted Airport to Illinois with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from London to Illinois?

It is quick and easy to find London to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from London to Illinois with flexible booking policies on momondo?

Flights from London to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from London.

I’m not ready to book a flight from London to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from London and alert you when they change.