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$235+ Cheap flights from O'Hare Intl (ORD) to the United Kingdom

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Find flight deals from O'Hare Intl to United Kingdom

Cheapest flights from O'Hare Intl to United Kingdom
Explore the most affordable flight options available from O'Hare Intl to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This oojo deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/306:30 pmORD - GLA
1 stop9h 25mIcelandair
Fri 12/512:35 pmGLA - ORD
1 stop10h 45mIcelandair
Deal found 10/15$489
This Mytrip deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:30 pmORD - EDI
2 stops14h 25mMultiple Airlines
Mon 12/87:55 amEDI - ORD
2 stops15h 25mMultiple Airlines
Deal found 10/14$494
This Mytrip deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:40 pmORD - EDI
1 stop16h 45mMultiple Airlines
Tue 11/188:40 amEDI - ORD
1 stop11h 20mMultiple Airlines
Deal found 10/14$503
This Cheapflightsfares deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:30 pmORD - GLA
1 stop9h 25mIcelandair
Tue 11/1812:35 pmGLA - ORD
1 stop10h 45mIcelandair
Deal found 10/14$505
This Mytrip deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:30 pmORD - MAN
2 stops20h 25mMultiple Airlines
Fri 12/56:45 amMAN - ORD
2 stops16h 35mMultiple Airlines
Deal found 10/13$506
This Mytrip deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:50 pmORD - EDI
1 stop10h 25mMultiple Airlines
Mon 11/1710:30 pmEDI - ORD
1 stop21h 30mMultiple Airlines
Deal found 10/14$506
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:30 pmORD - GLA
1 stop9h 25mIcelandair
Wed 11/1212:35 pmGLA - ORD
1 stop10h 45mIcelandair
Deal found 10/15$516
This CrystalTravel deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:30 pmORD - LHR
1 stop10h 20mIcelandair
Fri 1/912:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 10/13$526
This CrystalTravel deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 pmORD - LHR
1 stop10h 20mIcelandair
Thu 1/1512:15 pmLHR - ORD
1 stop11h 05mIcelandair
Deal found 10/16$527
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:30 pmORD - STN
2 stops22h 35mMultiple Airlines
Sat 12/136:30 amSTN - ORD
2 stops16h 50mMultiple Airlines
Deal found 10/15$527
This FlightHub deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:30 pmORD - GLA
1 stop9h 25mIcelandair
Thu 12/1812:35 pmGLA - ORD
1 stop10h 45mIcelandair
Deal found 10/16$528
This Mytrip deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:35 amORD - STN
3 stops24h 55mMultiple Airlines
Thu 12/46:15 amSTN - ORD
2 stops16h 30mMultiple Airlines
Deal found 10/14$528

Cheap flight deals from O'Hare Intl to United Kingdom

Keep the following information in mind while searching for O'Hare Intl to United Kingdom flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$489
(oojo)

One-way from

$235
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$669

Good round-trip deal

$661 or less

Good one-way deal

$446 or less
Provider with most accurate pricing for Chicago (CHI)-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-London (LON) flights.
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From Chicago O'Hare Intl to United Kingdom
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One-way flight from Chicago O'Hare Intl to United Kingdom
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to United Kingdom.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to United Kingdom.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to the United Kingdom that are best for you.

Fly from

O'Hare Intl

Fly to

United Kingdom

Route

Depart

Return

Price

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sun 11/30

6:30 pm-9:55 am

1 stop9h 25m

Glasgow Intl

Fri 12/5

12:35 pm-5:20 pm

1 stop10h 45m

$489

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 11/11

6:30 pm-9:55 am

1 stop9h 25m

Glasgow Intl

Tue 11/18

12:35 pm-5:20 pm

1 stop10h 45m

$505

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Fri 11/28

6:30 pm-8:55 pm

2 stops20h 25m

Manchester

Fri 12/5

6:45 am-5:20 pm

2 stops16h 35m

$506

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 11/6

6:30 pm-9:55 am

1 stop9h 25m

Glasgow Intl

Wed 11/12

12:35 pm-5:20 pm

1 stop10h 45m

$516

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 1/29

10:40 am-4:00 pm

2 stops23h 20m

London Heathrow

Fri 2/6

6:40 am-4:45 pm

1 stop16h 05m

$530

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 2/26

10:40 am-9:20 am

2 stops16h 40m

London Heathrow

Mon 3/2

6:40 am-4:45 pm

1 stop16h 05m

$531

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 11/7

7:20 pm-8:55 am

2 stops31h 35m

London Heathrow

Mon 11/10

6:40 am-4:45 pm

1 stop16h 05m

$535

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Mon 11/24

3:50 pm-9:50 am

1 stop12h 00m

London Stansted

Wed 12/3

8:30 am-5:55 pm

1 stop15h 25m

$540

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 11/12

3:50 pm-8:35 am

1 stop10h 45m

London Luton

Wed 11/19

6:50 am-2:00 pm

1 stop13h 10m

$542

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Thu 11/27

7:00 am-2:00 pm

3 stops25h 00m

London Luton

Sat 12/6

8:50 pm-4:45 pm

2 stops25h 55m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 60 results
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Best time to book a flight from O'Hare Intl to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to the United Kingdom

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to United Kingdom?

Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to United Kingdom (average of $391). Flying from Chicago O'Hare Intl Airport to United Kingdom in July is currently the most expensive (average of $603). 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 ORD to GB?

Find hourly flight availability from O'Hare Intl to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

When flying from Chicago O'Hare Intl Airport to United Kingdom, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight at noon.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to United Kingdom. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to United Kingdom flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago O'Hare Intl Airport to United Kingdom

Explore weekly flight availability from O'Hare Intl to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 16, 2025.

The most flights from ORD to GB0 are scheduled on a Monday (51 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (51 on average).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated October 16, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Icelandair from Chicago O'Hare Intl Airport to the United Kingdom. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,040 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Icelandair
7.0
Good
556 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Iberia
7.0
Good
2,994 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,457 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to United Kingdom?

    Icelandair, Scandinavian Airlines, and Finnair can get you from Chicago O'Hare Intl Airport to United Kingdom in just under 9h 25m. Your travel time can differ by up to 13h 55m. Chicago O'Hare Intl Airport and United Kingdom are separated by a distance of 3663 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to United Kingdom one-way?

    $238 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on JetBlue and SWISS, with prices starting from $279 and $404, respectively.

  • What are the most popular routes from Chicago O'Hare Intl Airport to United Kingdom?

    The most popular route from Chicago O'Hare Intl Airport to United Kingdom is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to United Kingdom?

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to United Kingdom are Royal Jordanian (80%), SriLankan Airlines (74%) and Gulf Air (74%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to United Kingdom?

    Looking at all options, your cheapest flight can be booked for $388. While the most popular route (Chicago O'Hare Intl - London Heathrow) can be booked for $439 on average, our data indicates $2,612 when flying from Chicago O'Hare Intl Airport to United Kingdom.

  • Can I find deals for flights from O'Hare Intl to United Kingdom that include hotel bookings?

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

  • How can I find direct flights from O'Hare Intl to United Kingdom?

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

  • Can I find deals for business class flights from O'Hare Intl to United Kingdom?

    Yes. Cheapflights offers flight deals from O'Hare Intl to United Kingdom 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 Chicago O'Hare Intl Airport to United Kingdom?

    Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to United Kingdom (average of $391). Flying from Chicago O'Hare Intl Airport to United Kingdom in July is currently the most expensive (average of $603). 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.

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Alternative routes for O'Hare Intl to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from O'Hare Intl to United Kingdom

Discover the top 10 airlines that operate flights from O'Hare Intl to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$795FlexibilityNo cancel feeOn-time62%
SWISSCheapest$257Average$626FlexibilityNo cancel feeOn-time79%
Scandinavian AirlinesCheapest$338Average$598FlexibilityNo cancel feeOn-time77%
DeltaCheapest$345Average$1,062FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$430Average$941FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$450Average$660FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$479Average$666FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$502Average$793FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$503Average$825FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$544Average$755FlexibilityNo cancel feeOn-time76%

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