Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Chicago to the United Kingdom from $188

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to the United Kingdom departing on 9/24. 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
Tue 7/2
Tue 7/9

Search hundreds of travel sites at once for deals on flights to the United Kingdom

In the last 7 days travelers have searched 42,335,261 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best United Kingdom Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

London
London2 stops$422
Edinburgh
Edinburgh2 stops$589
Manchester
Manchester1 stop$537
Birmingham
Birmingham1 stop$581
Inverness
Inverness1 stop$506
Bristol
Bristol1 stop$591
Cardiff
Cardiff2 stops$805

Good to know

Low season

February

High season

June

Cheapest flight

$188
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 55% increase in price.
Flight from Chicago O'Hare Airport to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Chicago to the United Kingdom?

    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 Chicago to the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United Kingdom from Chicago 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 Chicago to the United Kingdom?

    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 the United Kingdom with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to the United Kingdom?

    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 the United Kingdom from Chicago 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 the United Kingdom

  • Morning departure is around 9% 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 Chicago to the United Kingdom

 
Need help choosing which airline to fly with from Chicago to the United Kingdom? 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 10755 reviews
7.7Boarding
7.2Comfort
8.1Crew
7.1Entertainment
6.7Food
Airline reviews

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

8.0 ExcellentBob, Jun 2024ORD - LAX
Read more about United Airlines reviews

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

I’ve had a couple flights this week on United that were delayed by an hour or more

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Flight delayed for 2 hours due to a part. The plane sat waiting for boarding for a long time and during final preflight inspection the issue was found. Why not do the preflight inspection sooner if you know the plane is being used?

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

We were delayed bc ground crew gave the flight crew the wrong paperwork. We taxiied to the runway then back to the gate to get the correct paperwork that no one bothered reviewing the first time we pushed back. Boarding was rude and stressful like it always is. Gate agents and flight attendants are all over 55 years of age, embittered by years of underpayment From AA leading to their passive agressive bitchiness for no reason.

Boarding time was easy & quick. Crew was excellent. In-flight entertainment was great/easy. Seats are too small and not enough room between rows: felt like a sardine/very cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Short flight so not much to rate. Surprised I had to pay for a soda.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Very good need to offer better choice of food for business

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

My flight was cancelled after a 7 hour delay. I am awaiting a refund.

Food was low quality as well as quantity; I ordered vegetarian. We waited 35 MINUTES for the first bag to arrive after landing.

Disappointing. Had to pay 70 euros for one checked bag. Transatlantic flight was cramped, not very comfortable

Ability to select seating would be nice. We were family of three and they had us seated back to back and one of us on the other side of the plane??? That is pretty goofy. Especially when tickets were placed two months in advance.

It was not Iberia. It was with United. It was great!!!

Our flight was delayed by 2-hrs but I understand it was beyond the scope of the crew members

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

Other than a late takeoff (not British Airways fault) and some delays with baggage, it was a terrific flight. The crew in business class was superb and the seat and accommodations clean and modern. Could not have asked for more.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Very bed boarding, there was overbooked and make a lot of problems and noises

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

Book cheap flights from Chicago to the United Kingdom

Recent round-trip flight deals

10/13Sun
2 stopsTAP AIR PORTUGAL
20h 20mORD-LGW
10/15Tue
1 stopTAP AIR PORTUGAL
29h 45mLGW-ORD
$422
11/14Thu
1 stopScandinavian Airlines
13h 50mORD-LHR
11/18Mon
1 stopScandinavian Airlines
13h 45mLHR-ORD
$472
11/6Wed
nonstopIberia
7h 45mORD-LHR
11/12Tue
1 stopIberia
14h 05mLHR-ORD
$530
10/9Wed
1 stopBritish Airways
12h 40mORD-LHR
10/14Mon
1 stopBritish Airways
22h 30mLHR-ORD
$533
10/2Wed
nonstopBritish Airways
7h 50mORD-LHR
10/7Mon
1 stopBritish Airways
22h 30mLHR-ORD
$542
10/9Wed
1 stopAmerican Airlines
10h 45mORD-LHR
10/18Fri
nonstopAmerican Airlines
8h 55mLHR-ORD
$551
9/24Tue
1 stopAmerican Airlines
10h 45mORD-LHR
10/4Fri
1 stopAmerican Airlines
12h 30mLHR-ORD
$561
11/7Thu
nonstopIberia
7h 40mORD-LHR
11/12Tue
1 stopIberia
14h 05mLHR-ORD
$580
11/22Fri
1 stopAer Lingus
10h 10mORD-LHR
11/28Thu
1 stopAer Lingus
12h 10mLHR-ORD
$605
8/15Thu
1 stopAer Lingus
11h 00mORD-LHR
8/23Fri
1 stopAer Lingus
13h 15mLHR-ORD
$630

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/24Tue
1 stop
17h 33mORD-LGW
$188
10/8Tue
1 stop
21h 51mORD-LGW
$198
9/23Mon
nonstopIberia
7h 50mORD-LHR
$390
11/26Tue
nonstopAmerican Airlines
7h 40mORD-LHR
$404
11/26Tue
1 stopBritish Airways
10h 55mORD-LCY
$423
11/13Wed
1 stopBritish Airways
16h 55mORD-LCY
$449
8/5Mon
nonstopIberia
7h 30mORD-LHR
$467
8/12Mon
1 stopAer Lingus
28h 55mORD-EDI
$541
9/23Mon
2 stopsAmerican Airlines
14h 25mORD-GLA
$542
7/1Mon
1 stopAer Lingus
27h 45mORD-GLA
$575

Search by stops

Search by airline

Search by price

Last minute flights from Chicago to the United Kingdom

Last minute flight, train and bus deals

6/5Wed
nonstopFinnair
8h 00mORD-LHR
11/28Thu
nonstopFinnair
8h 55mLHR-ORD
$672
6/5Wed
nonstopFinnair
8h 00mORD-LHR
11/26Tue
multi-stopFinnair
16h 57mLHR-ORD
$683
6/7Fri
nonstopAmerican Airlines
8h 00mORD-LHR
7/14Sun
multi-stopAmerican Airlines
13h 21mLHR-ORD
$757
6/7Fri
multi-stopBritish Airways
21h 15mORD-LHR
6/29Sat
nonstopBritish Airways
8h 35mLHR-ORD
$780
6/7Fri
multi-stopBritish Airways
21h 15mORD-LHR
6/29Sat
multi-stopBritish Airways
16h 18mLHR-ORD
$790
6/7Fri
multi-stopAmerican Airlines
11h 12mORD-LHR
6/19Wed
nonstopAmerican Airlines
8h 40mLHR-ORD
$878
6/7Fri
nonstopIberia
8h 00mORD-LHR
6/14Fri
multi-stopIberia
14h 05mLHR-ORD
$904
6/7Fri
nonstopIberia
8h 00mORD-LHR
6/14Fri
nonstopIberia
8h 42mLHR-ORD
$922
6/5Wed
multi-stopAer Lingus
13h 10mORD-LCY
6/7Fri
multi-stopAer Lingus
18h 45mLCY-ORD
$2,111
6/3Mon
multi-stopAer Lingus
13h 40mORD-GLA
6/7Fri
multi-stopAer Lingus
14h 57mGLA-ORD
$2,737

Search by stops

Search by airline

Search by price

Flights to the United Kingdom