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Find cheap flights from London to Illinois from £175

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 10/5. 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 29/5
Wed 5/6

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Best Illinois Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop£379
Moline
Moline2 stops£838
Peoria
Peoria1 stop£870
Springfield
Springfield1 stop£884
Champaign
Champaign2 stops£849

Good to know - Cheap tickets from London to Illinois

Low season

January

High season

July

Cheapest flight

£175
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from London Gatwick Airport to St. Louis

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 return 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 a cheap flight from London to Illinois

  • Morning departure is around 13% cheaper 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 5 airlines serving 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.
7.8
Cathay PacificOverall score based on 1123 reviews
8.0Boarding
7.8Comfort
8.0Entertainment
7.5Food
8.2Crew
Airline reviews

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

10.0 ExcellentAnonymous, Apr 2024HKG - JFK
Read more about Cathay Pacific reviews

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Very poor check-in experience, and flight meal service was very disappointing with no drinks service or hot meal.

Not impressed with check in desk staff at Vancouver airport. Not a professional mind service and not cared or tried to help. Don’t think I would fly with them again

Seats were very comfortable. Crew were excellent. Food very good.

One of the worst flight in business class by qatar airways and I’m no stranger with qatar airways businesses class, I travelled with the extensively in the past 12 years

Very comfortable flights. Not so many new releases in terms of films.

I felt thirsty and asked the flight attendent for water, but no one came for more than half an hour.

Everything went smooth. All flights were on time No changing gates, . No changing flights . It was like a completely different airlines tha n the last time I used Cathay Pacific . The last flight, 2 months ago, I had before this one was from Philippines also . I got changed in Manila and was told it only added 2 hours onto my flight . My 20 hour return trip ended up being 30 hours return with a 10.0 hour layover in New York with no seats anywhere . Everyone was sleeping or sitting on the floor . Unlike the hotel I was given in Manila to wait for this flight home . I never thought I would use Cathay Pacific again . But I did and this time you were great! I should have complained about the flight and layover from Hell a couple months ago. Consider that I am complaining about that august/23 flight now . Thank you got the great flying experience on my way home from philippines .

On the flight back the seats where very uncomfortable, they where so bad that my back started to hurt after the first 2 hours. I can sit in a wooden chair for 2 hours. But these where just horrible, it just shows how cheap the airline has become. And the cabin was heated all those people in a heated cabin during a night flight. It was clear the climate control was not working. To top that off you are not even offered a glass of water, these people are animals.

We purchased a Go First Pass for 10 Euros each so we could board first, but everyone was able to board at the same time so we wasted 20 Euros. The flight left ab out 15 minutes late and was not allowed to land at Healthrow so we had to circle Heathrow for about 45 minutes. This caused us to almost miss our flight from Heathrow to Atlanta.

Severely delayed with no notice. Could have arrived at the airport hours later had we been informed of the delay

Once the boarding sign went on and all passengers gathered in line, we were left waiting standing up for almost an hour because there was a delay.

It would be nice to have vegan options for meals. The entertainment was not working on the the way to Austria. It was only available near the end of flight to Canada. The service was excellent.

Flight was delayed by approx 1 hour. The boarding process and the flight itself were very good, slightly tight squeeze for my legs but overall happy.

The business class layout on this plane is tightly packed and atrocious with no sense of privacy.

Flight was meant to leave at 8:30pm but there was a 2 hour delay 😞

Airmalta does not include meals in their flights and neither offers entertainment.

Pros: "The crew was amazing and took measures to make the flight Covid safe"
Cons: "The food was not the best and Twistees weren't available. Also the seats felt narrow"

The trip itself was good. I have given only good as rating, because my first flight has been cancelled by a different airline and that caused disruption in my trip. I spent over ten hours in Luton airport and that caused me high tiredness, sickness, because of the very early initial trip. easyJet staff has been professional and friendly.

Very pleasant crew, working hard on a full plane. Delay by a broken seat. However crew made back 60% of the delay.

Delayed and then further delayed with no announcement made so that all the passengers (who were standing in the jetty) could hear. We stood there for well over 20 minutes. We were further delayed through weather but no one explained that to us until the pilot made an announcement when finally on board

easyJet need to ensure that whether pre-booking seats or not children aren’t split from their parents the crew spent the majority of boarding asking passengers to move to accommodate two families. Surely the system identifies minors on a booking !!!!! It was all very frustrating to watch and caused delays which I’m sure cost easyJet more in the long run rather that automatically allocating families with minors seats together automatically.

As you would expect from a budget airline Left and arrived on time, no frills, not even a glass of water offered But you get what you pay for

I had an emergency escape seat. The attendant gave the extrA briefing to my side of the aisle but didnt direct it at all to the other where my wife was sitting

Boarding great. Didn’t eat or drink so can not comment.

Total jobs worths over carry on bags, charged £96 extra for bags that were clearly hand luggage

3 hours delayed Don’t understand why when you have paid for ‘speedy boarding’ they call you forward to then make you stand fir another 20 minutes in a confined space before boarding the plane.

The pilot did everything possible to make up the 35 minute delay. His communications were honest, prompt and positive throughout.

Speakers were blaring. It's like being in a Moroccan market and you keep getting shouted at with what's for sale

What can you say Ryanair get you there,no frills Not so cheap anymore ..... but what is now days! Would use again as always. Good flight times for us.

bring iPad for entertainment. The flight was punctual as most of the time.

Very unpleasant staff, disgusting service, ignoring requests, refusal to help

Late again rude staff at gate bullying passengers made us stand in the cold 3degrees for 40 mins before they let us board

The usual average Ryanair flight, but we landed 20 min before due time, which was very good.

Enjoyed our flight with Ryanair to Arrecife. Flight boarded pretty much on time, crew were welcoming and very good. Generally good for a frequent low cost flight, Seats could however have been more comfortable.

I wouldn't like to fly with them anymore, I don't like their service, you can hardly take carry-on luggage because they charge you for everything, you can't ask for a glass of water, and the flight attendant tells you that they don't have any, that you have to Paying 3 euros for a bottle of water horrible, I don't recommend it, and they don't have anything low cost, because the plane ticket may not be expensive but what they charge you later for the rest, the flight becomes more expensive, it's the only airline that I don't like it so far, and I traveled a lot.

Staff were friendly and flight was on time. Free drink and snacks would have been appreciated.

The boarding process was fast and easy , but the airport sign was not up on the board, so it was hard to know the correct gate , on the airplane there was NO Snacks and NO water …. Everything needs to be purchase …. It’s not worthy for the price we paid !

The crew was very attentive and kept busy serving a variety of treats!

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

All was good. The headphones they supply are of poor quality. The food is good but too much dairy.

Seating space was crowded and I am a very small woman.

I sat in the last row of seats. On an 8 hour flight they allowed folks to stand and talk and drink in the back area near the toilets the whole time. They were at times loud and in the way. It was a little annoying. The crew on this trip were pretty mediocre and the plane was littered with trash when we disembarked.

Book cheap flights from London to Illinois

Cheapest flights to Illinois from London found in 2024

Recent return flight deals

15/9Sun
1 stopTAP AIR PORTUGAL
14h 10mLHR-ORD
28/9Sat
1 stopTAP AIR PORTUGAL
12h 45mORD-LHR
£379
20/9Fri
1 stopTAP AIR PORTUGAL
14h 00mLHR-ORD
30/9Mon
1 stopTAP AIR PORTUGAL
17h 45mORD-LHR
£388
9/9Mon
directBritish Airways
8h 40mLHR-ORD
23/9Mon
directBritish Airways
7h 50mORD-LHR
£398
10/9Tue
directBritish Airways
8h 40mLHR-ORD
24/9Tue
directBritish Airways
7h 50mORD-LHR
£399
15/5Wed
1 stopLufthansa
11h 10mLHR-ORD
22/5Wed
directLufthansa
8h 10mORD-LHR
£414
14/5Tue
1 stopFinnair
15h 55mLHR-ORD
19/5Sun
1 stopFinnair
31h 50mORD-LHR
£415
10/9Tue
directLufthansa
9h 10mLHR-ORD
24/9Tue
directLufthansa
8h 15mORD-LHR
£415
15/5Wed
1 stopFinnair
13h 05mLHR-ORD
20/5Mon
1 stopFinnair
11h 20mORD-LHR
£419
15/5Wed
1 stopSWISS
14h 00mLCY-ORD
20/5Mon
1 stopSWISS
12h 30mORD-LCY
£449
14/5Tue
1 stopSWISS
12h 40mLCY-ORD
20/5Mon
1 stopSWISS
16h 10mORD-LCY
£474

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Recent one-way flight deals

10/5Fri
1 stop
26h 28mLGW-STL
£175
8/5Wed
1 stop
14h 37mLGW-ORD
£186
14/5Tue
1 stopLufthansa
12h 30mLHR-ORD
£436
6/5Mon
1 stopLufthansa
13h 25mLHR-ORD
£456
13/5Mon
1 stopSWISS
12h 40mLCY-ORD
£543
5/5Sun
1 stopBritish Airways
11h 50mLCY-ORD
£545
28/5Tue
1 stopSWISS
13h 50mLCY-ORD
£549
1/7Mon
1 stopBritish Airways
13h 15mLCY-ORD
£565
9/9Mon
1 stopFinnair
16h 30mLHR-STL
£659
9/9Mon
1 stopFinnair
14h 50mLHR-STL
£758

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Last minute flights from London to Illinois

Last minute flight, train and bus deals

1/5Wed
directLufthansa
9h 05mLHR-ORD
15/5Wed
directLufthansa
8h 10mORD-LHR
£474
4/5Sat
directAmerican Airlines
8h 40mLHR-ORD
11/5Sat
directAmerican Airlines
7h 50mORD-LHR
£486
3/5Fri
multi-stopFinnair
13h 43mLHR-STL
7/5Tue
multi-stopFinnair
16h 03mSTL-LHR
£533
30/4Tue
directFinnair
8h 40mLHR-ORD
7/5Tue
multi-stopFinnair
12h 21mORD-LHR
£540
30/4Tue
multi-stopSWISS
26h 00mLHR-ORD
6/5Mon
multi-stopSWISS
15h 15mORD-LHR
£801
30/4Tue
directBritish Airways
8h 40mLHR-ORD
6/5Mon
directBritish Airways
7h 50mORD-LHR
£832
30/4Tue
multi-stopSWISS
14h 00mLCY-ORD
7/5Tue
multi-stopSWISS
11h 15mORD-LCY
£841
2/5Thu
directBritish Airways
8h 35mLHR-ORD
6/5Mon
directBritish Airways
7h 45mORD-LHR
£872
3/5Fri
multi-stopAir France
14h 55mLHR-MDW
8/5Wed
multi-stopAir France
11h 00mMDW-LHR
£880
2/5Thu
multi-stopAir France
14h 55mLHR-MDW
8/5Wed
multi-stopAir France
11h 00mMDW-LHR
£883

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