$258 Find Cheap Flights from London to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Illinois departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap London to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Illinois 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.

Recent round-trip flight deals from London to Illinois

Fri, Aug 28 - Sun, Aug 30
Air Canada Logo
3:30 pm - 7:52 pm
YXU
-
ORD
5h 22m
1 stop
Air Canada Logo
9:50 am - 2:50 pm
ORD
-
YXU
4h 00m
1 stop
$551Air Canada
Fri, Sep 4 - Mon, Sep 7
WestJet Logo
2:40 pm - 4:40 pm
YXU
-
ORD
27h 00m
2 stops
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$582WestJet
Fri, Sep 4 - Mon, Sep 7
WestJet Logo
5:55 pm - 4:40 pm
YXU
-
ORD
23h 45m
1 stop
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$609WestJet
Fri, Aug 28 - Sun, Aug 30
WestJet Logo
2:40 pm - 4:40 pm
YXU
-
ORD
27h 00m
2 stops
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$610WestJet
Sat, Jan 9 - Wed, Jan 13
Air Canada Logo
3:20 pm - 7:58 pm
YXU
-
ORD
5h 38m
1 stop
Air Canada Logo
8:45 am - 2:42 pm
ORD
-
YXU
4h 57m
1 stop
$620Air Canada
Sat, Jan 9 - Wed, Jan 13
Air Canada Logo
5:30 am - 2:52 pm
YXU
-
ORD
10h 22m
2 stops
Air Canada Logo
8:45 am - 2:42 pm
ORD
-
YXU
4h 57m
1 stop
$623Air Canada
Sat, Jan 9 - Wed, Jan 13
Air Canada Logo
3:20 pm - 7:58 pm
YXU
-
ORD
5h 38m
1 stop
Air Canada Logo
8:45 am - 2:42 pm
ORD
-
YXU
4h 57m
1 stop
$625Air Canada
Sat, Jan 9 - Wed, Jan 13
Air Canada Logo
3:20 pm - 7:58 pm
YXU
-
ORD
5h 38m
1 stop
Air Canada Logo
8:45 am - 2:42 pm
ORD
-
YXU
4h 57m
1 stop
$626Air Canada
Sat, Jan 9 - Wed, Jan 13
Air Canada Logo
5:30 am - 2:52 pm
YXU
-
ORD
10h 22m
2 stops
Air Canada Logo
8:45 am - 2:42 pm
ORD
-
YXU
4h 57m
1 stop
$628Air Canada
Tue, Aug 4 - Sat, Aug 8
Multiple Airlines Logo
2:40 pm - 9:45 am
YXU
-
MDW
20h 05m
2 stops
Multiple Airlines Logo
7:25 pm - 1:50 pm
MDW
-
YXU
17h 25m
2 stops
$1,032Multiple Airlines
Booking Insights

KAYAK's insights & trends for London to Illinois flights

Get data-powered insights and trends into flights from London to Illinois to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from London to Illinois?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from London to Illinois were found on Air Canada ($639) and United Airlines ($706).

Find deals

FAQs - booking Illinois flights

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

    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 London to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to 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 London to Illinois?

    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 from London to Illinois with an airline and back with another airline.

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

    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 from London to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Illinois

Information on your arrival and departure airports

London (YXU)