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$197 Find Cheap Flights from Illinois to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 6/21. 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.
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Cheap Flight Deals 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.

Recent round-trip flight deals from Illinois to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Illinois to London.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:12 am - 9:15 amORD-YXU
22h 03m2 stops
12:20 pm - 4:27 pmYXU-ORD
29h 07m3 stops
$394
Find Deal
Mon, Mar 10 - Mon, Mar 17
10:12 am - 9:15 amORD-YXU
22h 03m3 stops
12:20 pm - 4:27 pmYXU-ORD
29h 07m3 stops
$399
Find Deal
Mon, Mar 10 - Mon, Mar 17
10:12 am - 9:15 amORD-YXU
22h 03m2 stops
12:20 pm - 9:07 amYXU-ORD
21h 47m2 stops
$401
Find Deal
Mon, Mar 10 - Mon, Mar 17
10:12 am - 7:13 pmORD-YXU
32h 01m2 stops
12:20 pm - 9:07 amYXU-ORD
21h 47m2 stops
$407
Find Deal
Mon, Mar 10 - Mon, Mar 17
4:45 pm - 7:13 pmORD-YXU
25h 28m1 stop
12:20 pm - 11:56 pmYXU-ORD
12h 36m2 stops
$408
Find Deal
Mon, Mar 10 - Mon, Mar 17
8:30 pm - 9:15 amORD-YXU
11h 45m1 stop
5:15 am - 2:42 pmYXU-ORD
10h 27m2 stops
$639Air Canada
Find Deal
Sun, Mar 23 - Sun, Mar 30
1:04 pm - 8:20 pmORD-YXU
6h 16m1 stop
5:15 am - 12:56 pmYXU-ORD
8h 41m2 stops
$641Air Canada
Find Deal
Sat, Mar 22 - Sat, Mar 29
8:00 am - 8:20 pmORD-YXU
11h 20m2 stops
9:55 am - 9:11 pmYXU-ORD
12h 16m2 stops
$815United Airlines
Find Deal
Mon, Mar 10 - Mon, Mar 17
6:00 am - 2:41 pmORD-YXU
7h 41m2 stops
9:55 am - 5:04 pmYXU-ORD
8h 09m2 stops
$816United Airlines
Find Deal
Mon, Mar 24 - Thu, Mar 27
7:10 pm - 7:13 pmORD-YXU
23h 03m3 stops
8:00 pm - 10:12 amYXU-ORD
15h 12m2 stops
$2,168WestJet
Find Deal
Thu, Mar 6 - Mon, Mar 10

Good to know

Low season

February

High season

January

Cheapest flight

$197
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly and prices are also 63% lower on average.
Flight from Chicago to London

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.

See more FAQs

Traveling to a place near London?

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Everything you need to know for your flight to London

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London (YXU)

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