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Find cheap flights from London to Illinois from $506

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Illinois departing on 8/9. 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
0 bags
Wed 6/12
Wed 6/19

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In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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Good to know

Low season

November

High season

August

Cheapest flight

$506
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from London to Chicago O'Hare Airport

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

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 11% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from London to Illinois

 
Need help choosing which airline to fly with from London to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10980 reviews
8.1Crew
7.2Comfort
7.7Boarding
7.1Entertainment
6.7Food
Airline reviews

We enjoyed that we boarded and took off on time. We didn’t like that our connection flight was a twenty minute walk through the airport with only one hour in between flights.

8.0 ExcellentAnonymous, May 2024YYZ - IAH
Read more about United Airlines reviews

We enjoyed that we boarded and took off on time. We didn’t like that our connection flight was a twenty minute walk through the airport with only one hour in between flights.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Wifi wasn't working on one of the UA flights after boarding.

The flight was delayed instead of leaving at 11 it left at 12.20

Book cheap flights from London to Illinois

Recent round-trip flight deals

8/9Fri
1 stop
4h 07mYXU-ORD
8/13Tue
2 stops
9h 24mORD-YXU
$506
5/31Fri
1 stopAir Canada
6h 19mYXU-ORD
6/4Tue
1 stopAir Canada
4h 46mORD-YXU
$508
8/9Fri
2 stops
8h 55mYXU-ORD
8/13Tue
2 stops
9h 24mORD-YXU
$511
8/23Fri
1 stopUnited Airlines
5h 09mYXU-ORD
8/25Sun
2 stopsUnited Airlines
7h 45mORD-YXU
$517
8/23Fri
2 stopsUnited Airlines
8h 54mYXU-ORD
8/25Sun
2 stopsUnited Airlines
7h 45mORD-YXU
$532
6/10Mon
1 stopUnited Airlines
4h 01mYXU-ORD
6/14Fri
1 stopUnited Airlines
4h 46mORD-YXU
$544
5/25Sat
2 stopsAir Canada
11h 26mYXU-ORD
5/28Tue
1 stopAir Canada
14h 16mORD-YXU
$563
5/25Sat
1 stopUnited Airlines
5h 12mYXU-ORD
5/28Tue
1 stopUnited Airlines
4h 46mORD-YXU
$567
5/25Sat
2 stopsUnited Airlines
11h 20mYXU-ORD
5/28Tue
1 stopUnited Airlines
4h 46mORD-YXU
$573
6/2Sun
1 stopUnited Airlines
4h 54mYXU-ORD
7/10Wed
2 stopsUnited Airlines
7h 45mORD-YXU
$583

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Last minute flights from London to Illinois

Last minute flight, train and bus deals

5/18Sat
multi-stopAir Canada
9h 41mYXU-ORD
5/20Mon
multi-stopAir Canada
7h 46mORD-YXU
$697
5/18Sat
multi-stopAir Canada
4h 04mYXU-ORD
5/20Mon
multi-stopAir Canada
7h 46mORD-YXU
$703
5/18Sat
multi-stop
21h 50mYXU-ORD
5/20Mon
multi-stop
20h 21mORD-YXU
$724
5/18Sat
multi-stop
16h 15mYXU-ORD
5/20Mon
multi-stop
7h 46mORD-YXU
$758
5/18Sat
multi-stop
16h 15mYXU-ORD
5/20Mon
multi-stop
17h 46mORD-YXU
$763
5/18Sat
multi-stopAir Canada
6h 19mYXU-ORD
5/20Mon
multi-stopAir Canada
7h 46mORD-YXU
$950
5/18Sat
multi-stopAir Canada
13h 49mYXU-ORD
5/20Mon
multi-stopAir Canada
7h 46mORD-YXU
$957
5/18Sat
multi-stopAir Canada
11h 33mYXU-ORD
5/20Mon
multi-stopAir Canada
16h 26mORD-YXU
$1,145

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London - Illinois Flights

Departure:

London (YXU)Canada

Return flight deals:

Illinois - London

Cabin classes:

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