How does KAYAK find such low prices on flights from Illinois to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to London. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

C$ 454 CHEAP FLIGHTS from Illinois to London

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Flight Deals

Cheap Flights from Illinois to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to London

Fri, 10 Oct - Fri, 17 Oct

5:30 p.m. - 5:12 a.m.ORD-YXU

10h 42m1 stop

8:00 p.m. - 4:43 p.m.YXU-ORD

21h 43m1 stop

C$ 454WestJet

Find Deal

Fri, 10 Oct - Fri, 17 Oct

5:30 p.m. - 5:12 a.m.ORD-YXU

10h 42m1 stop

6:00 a.m. - 11:44 p.m.YXU-ORD

18h 44m2 stops

C$ 515

Find Deal

Tue, 28 Oct - Tue, 4 Nov

6:40 a.m. - 7:12 p.m.ORD-YXU

35h 32m3 stops

8:00 p.m. - 7:16 p.m.YXU-ORD

24h 16m2 stops

C$ 723

Find Deal

Wed, 29 Oct - Wed, 5 Nov

7:43 p.m. - 7:12 p.m.ORD-YXU

46h 29m3 stops

8:10 p.m. - 6:20 p.m.YXU-ORD

23h 10m3 stops

C$ 745

Find Deal

Tue, 28 Oct - Tue, 4 Nov

6:40 a.m. - 7:12 p.m.ORD-YXU

35h 32m3 stops

8:00 p.m. - 11:42 p.m.YXU-ORD

28h 42m3 stops

C$ 761

Find Deal

Tue, 28 Oct - Tue, 4 Nov

2:00 p.m. - 9:21 p.m.ORD-YXU

6h 21m1 stop

9:25 a.m. - 3:10 p.m.YXU-ORD

6h 45m1 stop

C$ 815Air Canada

Find Deal

Wed, 29 Oct - Wed, 5 Nov

10:00 a.m. - 5:06 p.m.ORD-YXU

6h 06m1 stop

5:45 a.m. - 10:05 a.m.YXU-ORD

5h 20m1 stop

C$ 920United Airlines

Find Deal

Tue, 28 Oct - Tue, 4 Nov

7:15 a.m. - 5:06 p.m.ORD-YXU

8h 51m2 stops

9:25 a.m. - 1:01 p.m.YXU-ORD

4h 36m1 stop

C$ 933United Airlines

Find Deal

Tue, 28 Oct - Tue, 4 Nov

11:02 a.m. - 9:21 p.m.ORD-YXU

9h 19m2 stops

5:45 a.m. - 2:40 p.m.YXU-ORD

9h 55m2 stops

C$ 955United Airlines

Find Deal

Tue, 3 Mar - Wed, 4 Mar

4:05 p.m. - 9:21 p.m.STL-YXU

4h 16m1 stop

9:25 a.m. - 3:29 p.m.YXU-STL

7h 04m1 stop

C$ 1,275Air Canada

Find Deal

Cheapest round-trip

C$ 454

WestJet

Fri 10/10Fri 17/10

ORD - YXU • 1 stop

Cheapest one-way flights

C$ 471

United Airlines

Sat 27/9

ORD - YXU • 2 stops

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Useful Info

How does KAYAK find such low prices on flights from Illinois to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Grand Bend

Port Stanley

Everything you need to know for your flight to London

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

Information on the airport you'll fly into in London

London (YXU)

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C$ 454 Find Cheap Flights from Illinois to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

Cheap Flights from Illinois to London

Recent round-trip flight deals from Illinois to London

Recent one-way flight deals from Illinois to London

Recent last minute flight deals from Illinois to London

Everything you should know

FAQs for booking flights from Illinois to London

How does KAYAK find such low prices on flights from Illinois to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near London?

Everything you need to know for your flight to London

Information on the airport you'll fly into in London

Cabin class types available on flights to Illinois

Complete your trip to London with a hotel stay or car rental

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London