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Find cheap flights from Chicago to the United Kingdom from $154

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 4/17. 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
Thu 4/18
Thu 4/25

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Best United Kingdom Flight Deals

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

London
London1 stop$453
Edinburgh
Edinburgh2 stops$625
Manchester
Manchester1 stop$546
Birmingham
Birmingham1 stop$648
Inverness
Inverness1 stop$493
Bristol
Bristol1 stop$674
Cardiff
Cardiff1 stop$751

Good to know

Low season

January

High season

June

Cheapest flight

$154
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 62% increase in price.
Flight from Chicago Midway 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 39% 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 KAYAK reviews.
7.3
American AirlinesOverall score based on 15312 reviews
76boarding
71entertainment
73overall
72comfort
80crew
67food
Airline reviews

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.

Read more about American Airlines

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.

It was good, the staff was friendly and it was a typical flight to Europe.

Flight was delayed at departure due to weather and the need for de-icing. The flight was smooth but there was a delay at arrival due to weather. We were in a hold for 20 minutes or more. The flight arrived more than 30 minutes late. Airlines have no control over the weather and I'm glad that they follow all safety procedures. Had to wait a long time for my checked luggage. Whole process was slow and the bags arrived wet due to the rain. The onboard wifi and entertainment access was spotty and the signal was dropped several times. Otherwise the crew was great and friendly. They tried to get everyone's bags stowed and seated so we could take off.

Regarding the boarding: it needs more efforts to make it more convenient

Deicing in Denver took forever and I almost missed my connection. De-ice faster! Not Americans fault.

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Great hospitality and service! Seats are better cushioned then some

The vegan meal was pretty horrible tasting and the staff did not bring me breakfast and no coffee and asked. the connecting flight from dublin to bristol was much delayed.

Pretty darn good. Food was typical airline food. Not anyone’s favorite.

As four hour wait with no explanation as to why the delay Very unacceptable

My luggage was missing for 3 days. It’s not acceptable

Air Lingus flights were delayed on each of the three flights we took. Not a very good , and organized airline.

The family sitting beside me had a one year old constantly crying and another kid kicking my chair. I understand it’s nothing the airlines could do or it’s fault

The seating area was small and uncomfortable. The person in front of me put her seat back and my area got even smaller!!

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Pros: "I liked the northern lights look after boarding upon introduction of the captain and crew members. Everyone was super personal and uninformed looked great. The best part was when they started boarding from the last row, which is the most logical and efficient way to do it"
Pros: "Got assisted to the plane by airport staff as I was in a wheelchair"
Cons: "Food on board was awful. Ordered hamburger but not availabe having already pre paid. Pizza was poor quality and had no taste. Range of food disappointing"
Pros: "The crew was friendly, the planes clean, flights on time. The blankets were a very nice touch."
Cons: "On my first flight, I paid for use of wifi, but it kept kicking me off the connection. Repeatedly, the entire time. On the second flight, there was no option for wifi at all. It would have been nice to pay for wifi once for use all the way to my destination."

Pros: they tried to accommodate bc they forgot my gluten free meal Negatives: The flight was freeeeeezing Iberia didn’t communicate my gluten free meal

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.

The food is really eco only level. Breakfast was shameful. I am considering to stop flying with Iberia. Business prices are as expensive as other companies with much better service.

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.

it would good to have at least something to drink...

Everything was fantastic except the Iberia website and app… they left a lot of questions and induced much stress. But once on the plane, all was awesome.

Everything was great, except the food, which could have been flavorful.

Took too long to tak off but besides that it was good

Seating was very tight and not comfortable. Would rather pay extra to get more leg room. Overall, the flight was not as nice as expected. It’s comparable to flying Spirit Airlines or Frontier airlines in America. Even as a budget airlines, Iberia should at least serve water or light snacks, especially for international legs, no matter how short the flights are. We were flying from London, Heathrow to Madrid Spain on a 2-hour flight without offering water, unless you want to pay for the water.

The crew on this flight were attentive, efficient and friendly. It really made for an enjoyable flight.

They canceled my flight , they put me on a different flight that was delayed and the connection was lost . They lost my luggage. And now I’m stuck with any of my belongings.

British Airways canceled our plane and gave us a new flight scheduled to leave in only three hours, so we had to drop everything and rush to the airport. The new itinerary only left us a one hour layover in Madrid, which was too short because the plane landed late and so we missed our connecting flight. We were then booked onto a flight scheduled to take off 8 hours later, and were not given any compensation or remedial measures.

Seat layout, flight/club attendant service, food variety and quality could have been better. Business class Standard is visibly low compared with 6 other airlines that we have traveled for the past two years.

Despite many attempts to work out a change, neither British Airways nor Kayak nor Chatdeal would allow us to cancel or change this flight so we lost all of the payments when we were not able to fly. Absolutely terrible customer service. We will never use either of the services again.

It said that there was wifi. During the flight there was no wifi and while waiting at the gate the phone services already got cut off so I wasn’t able to say I am taxiing from the gate to my husband. This left me with an uncomfortable feeling. So I was waiting on the WiFi connection during flight and that never happened.

Asked for a wheelchair multiple times. Got denied the wheelchair in London layover.

They sell 1h /1h30min connection ticket that are impossible to make

Suite door was jammed but seat itself was very comfortable.

Yogurt only for the last meal was not what I could eat. choice of a croissant or other item would be preferred. It's a busy time, though, so i understand.

Book cheap flights from Chicago to the United Kingdom

Recent round-trip flight deals

5/1Wed
1 stop
29h 43mMDW-LGW
6/5Wed
1 stop
15h 18mLGW-MDW
$453
4/3Wed
1 stop
19h 55mMDW-LGW
4/17Wed
2 stops
24h 36mLGW-MDW
$463
4/3Wed
1 stop
19h 55mMDW-LGW
4/10Wed
2 stops
24h 36mLGW-MDW
$464
5/1Wed
2 stopsAmerican Airlines
16h 40mORD-LGW
5/8Wed
2 stopsAmerican Airlines
24h 26mLGW-ORD
$578
4/17Wed
1 stopAmerican Airlines
12h 20mORD-MAN
4/24Wed
2 stopsAmerican Airlines
17h 30mMAN-ORD
$589
4/17Wed
nonstopBritish Airways
7h 45mORD-LHR
4/24Wed
nonstopBritish Airways
8h 40mLHR-ORD
$598
4/29Mon
1 stopIberia
10h 51mORD-LHR
5/8Wed
nonstopIberia
8h 35mLHR-ORD
$602
3/26Tue
1 stopAer Lingus
12h 25mORD-LHR
4/7Sun
1 stopAer Lingus
13h 15mLHR-ORD
$613
4/17Wed
nonstopBritish Airways
7h 45mORD-LHR
4/22Mon
1 stopBritish Airways
24h 20mLHR-ORD
$614
4/20Sat
1 stopAer Lingus
9h 50mORD-MAN
5/5Sun
1 stopAer Lingus
10h 40mMAN-ORD
$629

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Recent one-way flight deals

4/17Wed
1 stop
29h 43mMDW-LGW
$154
5/1Wed
1 stop
29h 43mMDW-LGW
$156
4/17Wed
nonstopIberia
7h 50mORD-LHR
$419
4/17Wed
nonstopBritish Airways
7h 40mORD-LHR
$433
4/21Sun
1 stopAmerican Airlines
11h 25mORD-MAN
$436
4/24Wed
2 stopsBritish Airways
13h 40mORD-LHR
$439
4/21Sun
2 stopsAmerican Airlines
15h 35mORD-MAN
$439
4/19Fri
nonstopIberia
7h 45mORD-LHR
$519
4/27Sat
1 stopAer Lingus
28h 55mORD-EDI
$524
5/16Thu
1 stopAer Lingus
23h 05mORD-LCY
$560

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Last minute flights from Chicago to the United Kingdom

Last minute flight, train and bus deals

3/19Tue
multi-stopScandinavian Airlines
17h 50mORD-LHR
3/26Tue
multi-stopScandinavian Airlines
17h 00mLHR-ORD
$624
3/19Tue
multi-stopScandinavian Airlines
12h 15mORD-LHR
3/26Tue
multi-stopScandinavian Airlines
17h 25mLHR-ORD
$625
3/20Wed
nonstopAmerican Airlines
7h 45mORD-LHR
4/10Wed
multi-stopAmerican Airlines
13h 35mLHR-ORD
$647
3/20Wed
nonstopBritish Airways
7h 45mORD-LHR
4/10Wed
nonstopBritish Airways
8h 40mLHR-ORD
$658
3/21Thu
multi-stopAmerican Airlines
12h 31mORD-LHR
4/10Wed
multi-stopAmerican Airlines
13h 35mLHR-ORD
$702
3/21Thu
multi-stopIberia
12h 31mORD-LHR
4/10Wed
nonstopIberia
8h 40mLHR-ORD
$709
3/22Fri
nonstopBritish Airways
7h 45mORD-LHR
3/28Thu
multi-stopBritish Airways
24h 01mLHR-ORD
$728
3/21Thu
nonstopIberia
7h 45mORD-LHR
3/28Thu
nonstopIberia
8h 55mLHR-ORD
$935
3/19Tue
multi-stopAer Lingus
12h 30mORD-LGW
3/23Sat
multi-stopAer Lingus
12h 50mLGW-ORD
$1,195
3/20Wed
multi-stopAer Lingus
10h 40mORD-LGW
3/22Fri
multi-stopAer Lingus
11h 25mLGW-ORD
$1,222

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Flights to the United Kingdom