Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Chicago O'Hare Airport to United Kingdom from $224

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to the United Kingdom departing on 11/10. 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
Sat 6/15
Sat 6/22

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

In the last 7 days travelers have searched 42,211,976 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
London1 stop$478
Edinburgh
Edinburgh1 stop$839
Manchester
Manchester1 stop$474
Birmingham
Birmingham2 stops$578
Belfast
Belfast1 stop$677
Inverness
Inverness1 stop$513
Bristol
Bristol1 stop$822
Aberdeen
Aberdeen1 stop$613
Leeds
Leeds2 stops$1,093
Liverpool
Liverpool1 stop$911
Cardiff
Cardiff1 stop$1,039
Newquay
Newquay3 stops$905
Grimsby
Grimsby1 stop$737
Exeter
Exeter1 stop$5,911
Darlington
Darlington1 stop$712

Good to know

Low season

January

High season

May

Cheapest flight

$224
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Chicago O'Hare Airport to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to 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 O'Hare Airport to United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to United Kingdom from Chicago O'Hare Airport 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 O'Hare Airport to 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 United Kingdom with an airline and back to Chicago O'Hare Airport with another airline.

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

  • Looking for a cheap flight? 25% of our users found tickets from Chicago O'Hare Airport to the following destinations at these prices or less: London $540 one-way - $734 round-trip
  • Morning departure is around 12% 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 5 airlines serving from O'Hare Intl to the United Kingdom

 
Need help choosing which airline to fly with from O'Hare Intl 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 10946 reviews
7.1Entertainment
7.7Boarding
7.2Comfort
6.7Food
8.1Crew
Airline reviews

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

8.0 ExcellentSusan, May 2024ORD - CDG
Read more about United Airlines reviews

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?

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

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.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

I don't like that I have to pay if I want extra leg room. The seats are so expensive; I sit in normal seats and my legs and knees cramp the entire flight. I never feel comfortable on AA flights.

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!

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

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

I would not fly with BA again. Packed in like sardines, constant request to turn down air conditioning due to freezing cold for hours and the food was pretty to look at but tasteless!

I’m hoping for WiFi included. Everything else was very good

Rude security cunts. However the lady that issued my boarding ticket when I was flying back from New York was lovely & helpful!!

Appalling! The flight was delayed by 3.5 hours and the American Airlines staff at the airport where nit very helpful. Once boarded, the flight crew were unhelpful, the food was poor and the aircraft was tatty.

I called prior to flying to confirm our baggage allowance which was 5 bags. On our outbound flight thee were no problems. On the return flight we were charged for each bag totaling $400! We are working with customer service to resolve the issue.

Late boarding. Delayed departure leading to rushed connection at Madrid Barajas. Not necessarily Iberia's fault but delay loading cargo didn't help.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working. - Expect to be woken up more than an hour before landing when they start dinging the bell and making announcements and turning on all cabin lights to serve a snack. I would prefer they remain quiet and only serve people who want to wake up.

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

It was ok, not as good as it used to be. The Heathrow connection was a disaster - complete anarchy, unknowledgable and skimpy assistance and signage. Gate crew at next flight was great, held the flight while my wife struggled through security.

It was great! The seats were comfortable, and they fed me during the transatlantic flight, something which I have been missing out on for the past 3 years as I travel to and from school.

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Book cheap flights from Chicago to the United Kingdom

Recent round-trip flight deals

10/27Sun
1 stopTAP AIR PORTUGAL
13h 45mORD-MAN
11/2Sat
1 stopTAP AIR PORTUGAL
28h 20mMAN-ORD
$474
10/9Wed
1 stopTAP AIR PORTUGAL
22h 00mORD-LHR
10/14Mon
1 stopTAP AIR PORTUGAL
16h 15mLHR-ORD
$478
11/5Tue
1 stopAer Lingus
10h 10mORD-LHR
11/12Tue
1 stopAer Lingus
13h 10mLHR-ORD
$572
10/8Tue
1 stopBritish Airways
11h 00mORD-MAN
10/22Tue
1 stopBritish Airways
12h 05mMAN-ORD
$573
10/7Mon
nonstopBritish Airways
7h 50mORD-LHR
10/14Mon
1 stopBritish Airways
22h 30mLHR-ORD
$576
11/6Wed
nonstopAmerican Airlines
7h 40mORD-LHR
11/15Fri
1 stopAmerican Airlines
14h 00mLHR-ORD
$577
10/1Tue
2 stopsAmerican Airlines
14h 25mORD-MAN
10/15Tue
1 stopAmerican Airlines
12h 45mMAN-ORD
$578
11/10Sun
nonstopIberia
7h 40mORD-LHR
11/21Thu
1 stopIberia
14h 05mLHR-ORD
$578
9/10Tue
nonstopIberia
7h 55mORD-LHR
9/19Thu
1 stopIberia
14h 05mLHR-ORD
$608
10/10Thu
1 stopAer Lingus
11h 20mORD-LHR
10/17Thu
1 stopAer Lingus
11h 40mLHR-ORD
$624

Search by stops

Search by airline

Search by price

Recent one-way flight deals

11/10Sun
1 stopIcelandair
10h 25mORD-LHR
$224
10/1Tue
1 stopIcelandair
10h 30mORD-LHR
$236
11/3Sun
nonstopUnited Airlines
8h 00mORD-LHR
$433
6/4Tue
nonstopUnited Airlines
8h 10mORD-LHR
$459
6/19Wed
1 stopBritish Airways
12h 30mORD-MAN
$504
6/26Wed
2 stopsAmerican Airlines
18h 20mORD-MAN
$515
10/9Wed
2 stopsBritish Airways
15h 20mORD-SOU
$527
8/5Mon
1 stopAer Lingus
10h 05mORD-EDI
$529
9/23Mon
2 stopsAmerican Airlines
17h 15mORD-GLA
$542
8/7Wed
1 stopAer Lingus
12h 30mORD-GLA
$595

Search by stops

Search by airline

Search by price

Last minute flights from O'Hare Intl to the United Kingdom

Last minute flight, train and bus deals

5/21Tue
nonstopFinnair
7h 50mORD-LHR
5/28Tue
nonstopFinnair
8h 40mLHR-ORD
$455
5/17Fri
nonstopFinnair
7h 50mORD-LHR
5/19Sun
nonstopFinnair
8h 40mLHR-ORD
$561
5/20Mon
nonstopAmerican Airlines
7h 50mORD-LHR
6/5Wed
multi-stopAmerican Airlines
13h 35mLHR-ORD
$636
5/19Sun
nonstopIberia
7h 45mORD-LHR
5/29Wed
multi-stopIberia
14h 05mLHR-ORD
$638
5/20Mon
multi-stopAmerican Airlines
11h 20mORD-LHR
6/5Wed
multi-stopAmerican Airlines
13h 35mLHR-ORD
$641
5/21Tue
multi-stopBritish Airways
9h 39mORD-LHR
5/28Tue
nonstopBritish Airways
8h 35mLHR-ORD
$660
5/17Fri
multi-stopBritish Airways
11h 50mORD-LHR
5/21Tue
nonstopBritish Airways
8h 35mLHR-ORD
$678
5/21Tue
multi-stopIberia
11h 46mORD-LHR
6/3Mon
nonstopIberia
8h 35mLHR-ORD
$710
5/20Mon
multi-stopAer Lingus
14h 35mORD-LCY
5/22Wed
multi-stopAer Lingus
13h 15mLCY-ORD
$2,084
5/20Mon
multi-stopAer Lingus
18h 40mORD-LCY
5/23Thu
multi-stopAer Lingus
13h 15mLCY-ORD
$2,120

Search by stops

Search by airline

Search by price

Chicago O'Hare Airport - United Kingdom Flights

Departure:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

United Kingdom - Chicago O'Hare Airport

Cabin classes:

$4,595
$2,712
$1,525
$585