$169 Find Cheap Flights from London to Illinois

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 9/29. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Illinois, as well as popular online travel agencies
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Flight Deals

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

Tue, Dec 9 - Fri, Jan 2
Air Canada Logo
5:45 am - 2:55 pmYXU-ORD
10h 10m2 stops
Air Canada Logo
7:15 am - 5:06 pmORD-YXU
8h 51m2 stops
$471Air Canada
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Sun, Dec 7 - Sun, Dec 28
Air Canada Logo
9:25 am - 1:01 pmYXU-ORD
4h 36m1 stop
Air Canada Logo
2:00 pm - 9:21 pmORD-YXU
6h 21m1 stop
$492Air Canada
Find Deal
Sun, Dec 7 - Sat, Jan 3
Air Canada Logo
9:25 am - 1:01 pmYXU-ORD
4h 36m1 stop
Air Canada Logo
3:55 pm - 9:21 pmORD-YXU
4h 26m1 stop
$518Air Canada
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Fri, Oct 31 - Sun, Nov 2
United Airlines Logo
5:45 am - 10:00 amYXU-ORD
5h 15m1 stop
United Airlines Logo
5:02 am - 4:06 pmORD-YXU
10h 04m2 stops
$539United Airlines
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Fri, Oct 31 - Sun, Nov 2
United Airlines Logo
5:40 pm - 11:43 pmYXU-ORD
7h 03m2 stops
United Airlines Logo
8:50 am - 5:06 pmORD-YXU
7h 16m2 stops
$545United Airlines
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Sun, Sep 7 - Thu, Sep 11
Air Canada Logo
10:00 am - 3:04 pmYXU-ORD
6h 04m1 stop
Air Canada Logo
2:00 pm - 9:29 pmORD-YXU
6h 29m1 stop
$602Air Canada
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Sat, Aug 30 - Sun, Aug 31
Air Canada Logo
6:15 am - 9:09 amYXU-ORD
3h 54m1 stop
Air Canada Logo
9:55 am - 3:02 pmORD-YXU
4h 07m1 stop
$620Air Canada
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Sat, Aug 30 - Sun, Aug 31
United Airlines Logo
6:15 am - 11:59 pmYXU-ORD
18h 44m2 stops
United Airlines Logo
9:55 am - 3:02 pmORD-YXU
4h 07m1 stop
$673United Airlines
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Sat, Aug 30 - Sun, Aug 31
United Airlines Logo
6:15 am - 6:26 pmYXU-ORD
13h 11m2 stops
United Airlines Logo
8:50 am - 5:07 pmORD-YXU
7h 17m2 stops
$678United Airlines
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Thu, Dec 11 - Sat, Jan 3
Logo
8:00 pm - 1:35 pmYXU-ORD
18h 35m1 stop
Logo
8:30 pm - 7:12 pmORD-YXU
21h 42m2 stops
$895
Find Deal
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from London to Illinois were found on Air Canada ($471) and United Airlines ($539).

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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.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $628 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $628.

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

Information on your arrival and departure airports

London (YXU)

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