Chicago

$384+ Cheap flights from the United Kingdom to Chicago (CHI)

LHR — CHI
Dec 5 — Dec 121
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Cheap flight deals from United Kingdom to Chicago

Cheapest flights from United Kingdom to Chicago

Fri 11/68:10 am -
1 stop12h 00m
Wed 11/113:55 pm -
1 stop9h 40m
Deal found 11/3$620
Sat 11/78:10 am -
1 stop12h 00m
Thu 11/123:55 pm -
1 stop9h 40m
Deal found 11/3$621
Fri 11/68:10 am -
1 stop12h 00m
Mon 11/93:55 pm -
1 stop9h 40m
Deal found 11/3$622
Fri 11/68:10 am -
1 stop12h 00m
Fri 11/133:55 pm -
1 stop9h 40m
Deal found 11/3$624
Thu 11/58:10 am -
1 stop12h 00m
Tue 11/103:55 pm -
1 stop9h 40m
Deal found 11/3$629
Thu 11/58:10 am -
1 stop12h 00m
Thu 11/123:55 pm -
1 stop9h 40m
Deal found 11/3$631
Thu 11/58:10 am -
1 stop12h 00m
Sun 11/83:55 pm -
1 stop9h 40m
Deal found 11/3$632
Wed 11/48:10 am -
1 stop12h 00m
Mon 11/93:55 pm -
1 stop9h 40m
Deal found 11/3$636
Fri 11/68:10 am -
1 stop12h 00m
Sun 11/83:55 pm -
1 stop11h 20m
Deal found 11/3$637
Fri 11/68:10 am -
1 stop12h 00m
Thu 11/123:55 pm -
1 stop11h 20m
Deal found 11/3$639
Fri 11/68:10 am -
1 stop12h 00m
Sat 11/143:55 pm -
1 stop11h 20m
Deal found 11/3$640
Thu 11/58:10 am -
1 stop12h 00m
Wed 11/113:55 pm -
1 stop11h 20m
Deal found 11/3$643

Find flight deals from United Kingdom to Chicago

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$654
(Booking.com)

One-way from

$384
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$791

Good round-trip deal

$789 or less

Good one-way deal

$749 or less
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
From United Kingdom to Chicago (CHI)
One-way flight from United Kingdom to Chicago (CHI)
Highest demand for flights based on searches. 10% potential increase in price ($102 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from United Kingdom to Chicago (CHI).
Price to beat on a one-way flight from United Kingdom to Chicago (CHI).

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Fri 1/15

8:20 pm-5:20 pm

3 stops51h 00m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$398

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sun 1/24

10:25 pm-5:20 pm

3 stops48h 55m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$399

BristolChicago

BRS Bristol - ORD Chicago O'Hare Intl

BRSORD

Bristol

Tue 12/15

1:40 pm-3:30 pm

2 stops31h 50m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$406

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Mon 11/16

6:35 pm-5:20 pm

2 stops28h 45m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$410

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Wed 11/18

6:15 pm-5:20 pm

2 stops29h 05m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$423

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sat 1/16

10:35 am-5:20 pm

2 stops36h 45m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$434

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 1/20

7:00 am-5:20 pm

3 stops40h 20m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$435

ManchesterChicago

MAN Manchester - ORD Chicago O'Hare Intl

MANORD

Manchester

Tue 11/10

8:10 am-3:30 pm

2 stops37h 20m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$436

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 4/11

8:00 am-4:00 pm

1 stop14h 00m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$557

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Wed 4/7

8:00 am-4:00 pm

1 stop14h 00m

Chicago O'Hare Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from United Kingdom with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Chicago

What is the cheapest month to book a flight from United Kingdom to Chicago?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of $675). Flying from United Kingdom to Chicago in August is currently the most expensive (average of $1,077). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to CHI?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Chicago as you normally would.

Weekly flight availability from United Kingdom to Chicago

The most flights from GB0 to CHI are scheduled on a Monday (43 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (35 on average).

How often are flights from the United Kingdom to Chicago delayed?

About 8% of weekly flights between United Kingdom and Chicago have experienced delays in the past year, with the average delay time being 179 minutes.

What is the most punctual flight time for the United Kingdom to Chicago flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Chicago flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 5% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Chicago?

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Chicago

See what other customers who have flown with Aer Lingus,United Airlines, andIcelandair from the United Kingdom to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.2

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.7

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Comfort

7.2

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.7

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Comfort

7.2

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.7

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Comfort

7.2

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.7

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Comfort

7.2

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.7

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Comfort

7.2

Overall

7.3

Crew

8.1

Entertainment

7.0

Food

6.7

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Related info for your journey

  • How long is the flight from United Kingdom to Chicago?

    Air Canada, Icelandair, and Scandinavian Airlines can get you from United Kingdom to Chicago in just under 12h 25m. Your travel time can differ by up to 14h 20m. United Kingdom and Chicago are separated by a distance of 3939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to Chicago one-way?

    The cheapest airlines for a one-way flight from United Kingdom to Chicago are Icelandair ($380), Aer Lingus ($462), and JetBlue ($471).

  • What are the most popular routes from United Kingdom to Chicago?

  • What are the most reliable airlines from United Kingdom to Chicago?

    Consider Royal Jordanian (100%), SriLankan Airlines (91%) or Air Canada (89%) when booking your flight. These represent the most reliable airlines when flying from United Kingdom to Chicago.

  • What are the cheapest flights from United Kingdom to Chicago?

    Looking for the cheapest flight from United Kingdom to Chicago? While on average our users pay $2,384, our data indicates the cheapest price to be $576. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around $536.

  • Can I find deals for flights from United Kingdom to Chicago that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chicago.

  • Can I find deals for business class flights from United Kingdom to Chicago?

    Yes. Cheapflights offers flight deals from United Kingdom to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Chicago?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to Chicago (average of $675). Flying from United Kingdom to Chicago in August is currently the most expensive (average of $1,077). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Benton Harbor
Merrillville
Lansing
Valparaiso
Hammond
Saint Joseph
Porter

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from United Kingdom to Chicago

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$421Average$662FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$583Average$900FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$614Average$1,023FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$655Average$954FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$666Average$696FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$703Average$848FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$895Average$1,140FlexibilityNo cancel feeOn-time69%

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