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Cheap flights from London, ON to the United Kingdom from C$ 580

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from London to United Kingdom
Explore the most affordable flight options available from London to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Thu 23/79:10 p.m.
YXU
-
EDI
2 stops29h 30m
Air Canada
Thu 30/79:00 a.m.
EDI
-
YXU
1 stop10h 52m
Air Canada
Deal found 8/6C$ 943
Sun 16/85:40 a.m.
YXU
-
EDI
1 stop20h 40m
Air Canada
Thu 20/89:00 a.m.
EDI
-
YXU
1 stop29h 20m
Air Canada
Deal found 9/6C$ 966
Fri 12/63:30 p.m.
YXU
-
EDI
1 stop10h 50m
Air Canada
Tue 16/69:00 a.m.
EDI
-
YXU
1 stop29h 18m
Air Canada
Deal found 7/6C$ 968
Fri 12/65:10 a.m.
YXU
-
EDI
2 stops21h 55m
United Airlines
Tue 16/69:40 a.m.
EDI
-
YXU
2 stops34h 18m
United Airlines
Deal found 7/6C$ 1,040
Fri 2/105:40 a.m.
YXU
-
LHR
2 stops20h 05m
United Airlines
Tue 6/109:30 a.m.
LHR
-
YXU
2 stops17h 10m
United Airlines
Deal found 7/6C$ 1,086
Thu 11/610:05 a.m.
YXU
-
LHR
1 stop15h 30m
Air Canada
Wed 24/66:00 a.m.
LHR
-
YXU
2 stops16h 32m
Air Canada
Deal found 8/6C$ 1,100
Fri 2/106:20 p.m.
YXU
-
LHR
1 stop9h 15m
Air Canada
Tue 6/106:00 a.m.
LHR
-
YXU
2 stops16h 45m
Air Canada
Deal found 9/6C$ 1,138
Wed 15/76:10 a.m.
YXU
-
STN
2 stops35h 40m
Multiple Airlines
Wed 22/710:00 p.m.
STN
-
YXU
3 stops44h 50m
Multiple Airlines
Deal found 8/6C$ 1,224
Wed 15/76:10 a.m.
YXU
-
LGW
2 stops35h 40m
Multiple Airlines
Wed 22/78:50 p.m.
LGW
-
YXU
3 stops46h 00m
Multiple Airlines
Deal found 8/6C$ 1,314
Sat 13/63:30 p.m.
YXU
-
GLA
2 stops13h 40m
United Airlines
Wed 17/62:00 p.m.
GLA
-
YXU
2 stops32h 32m
United Airlines
Deal found 7/6C$ 1,372
Sat 13/63:30 p.m.
YXU
-
GLA
2 stops13h 40m
Air Canada
Wed 17/62:00 p.m.
GLA
-
YXU
2 stops36h 37m
Air Canada
Deal found 5/6C$ 1,375
Sun 13/910:05 a.m.
YXU
-
GLA
2 stops19h 05m
United Airlines
Thu 17/92:00 p.m.
GLA
-
YXU
2 stops32h 43m
United Airlines
Deal found 8/6C$ 1,401

Find flight deals from London to United Kingdom

Keep the following information in mind while searching for London to United Kingdom flight deals. Data was last updated 10 June 2026.

Round-trip from

C$ 943

One-way from

C$ 580
Air Canada
  • Air Canada
  • 23/7-30/7
  • 3 total stops
  • 40h 22m total
  • London to United Kingdom
Search Deals
WestJet
  • WestJet
  • 21/7
  • 2 total stops
  • 38h 00m total
  • London to United Kingdom
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London 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 629,999 searches. Data last updated 10 June 2026.
Use the filters below to find and compare flights from London to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonEdinburgh

YXU - EDI

YXUEDI

London

Thu 23/7

9:10 p.m.-7:40 a.m.

2 stops29h 30m

Edinburgh Turnhouse

Thu 30/7

9:00 a.m.-2:52 p.m.

1 stop10h 52m

C$ 943

LondonEdinburgh

YXU - EDI

YXUEDI

London

Sun 16/8

10:05 a.m.-7:20 a.m.

1 stop16h 15m

Edinburgh Turnhouse

Thu 20/8

9:00 a.m.-9:20 a.m.

1 stop29h 20m

C$ 966

LondonEdinburgh

YXU - EDI

YXUEDI

London

Thu 23/7

3:30 p.m.-8:05 a.m.

2 stops35h 35m

Edinburgh Turnhouse

Thu 30/7

9:40 a.m.-2:52 p.m.

2 stops34h 12m

C$ 1,040

LondonLondon

YXU - LHR

YXULHR

London

Fri 2/10

10:05 a.m.-9:00 a.m.

2 stops17h 55m

London Heathrow

Tue 6/10

8:00 a.m.-9:40 p.m.

2 stops18h 40m

C$ 1,086

LondonLondon

YXU - LHR

YXULHR

London

Fri 2/10

6:20 p.m.-8:35 a.m.

1 stop9h 15m

London Heathrow

Tue 6/10

6:00 a.m.-5:45 p.m.

2 stops16h 45m

C$ 1,138

LondonLondon

YXU - STN

YXUSTN

London

Wed 15/7

6:10 a.m.-10:50 p.m.

2 stops35h 40m

London Stansted

Wed 22/7

10:00 p.m.-1:50 p.m.

3 stops44h 50m

C$ 1,224

LondonLondon

YXU - LHR

YXULHR

London

Wed 15/7

10:05 a.m.-11:50 a.m.

1 stop20h 45m

London Heathrow

Wed 22/7

9:30 a.m.-8:32 p.m.

2 stops16h 02m

C$ 1,277

LondonLondon

YXU - LGW

YXULGW

London

Wed 15/7

6:10 a.m.-10:50 p.m.

2 stops35h 40m

London Gatwick

Wed 22/7

8:50 p.m.-1:50 p.m.

3 stops46h 00m

C$ 1,314

LondonGlasgow

YXU - GLA

YXUGLA

London

Sun 13/9

10:05 a.m.-10:10 a.m.

2 stops19h 05m

Glasgow Intl

Thu 17/9

2:00 p.m.-5:43 p.m.

2 stops32h 43m

C$ 1,401

LondonGlasgow

YXU - GLA

YXUGLA

London

Sun 13/9

10:05 a.m.-10:10 a.m.

2 stops19h 05m

Glasgow Intl

Thu 17/9

2:00 p.m.-5:43 p.m.

2 stops32h 43m

C$ 1,401

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 59 resultsSorted by cheapest first
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Best time to book a flight from London to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from London 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 London to the United Kingdom
No data available for this route at this time. Please check back soon.

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 10 June 2026.
Get a feel of what it's like to fly with Air Canada from London to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,154 reviews
Check prices

Overall

7.1

Food

6.3

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!
Air Canada
7.1
Good
11,154 reviews
Air Canada
7.1
Good
11,154 reviews
Check prices

Overall

7.1

Food

6.3

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!

Related info for your journey

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

  • What airport do you fly from for flights from London to United Kingdom?

    London (YXU) is the airport you will fly out of if you book a flight from London to United Kingdom. It is only a 8.6 km journey to London (YXU) from London’s city centre.

  • How long is the flight from London, Ontario to United Kingdom?

    There are many flights that can get you from London, Ontario to United Kingdom in 17h 55m. Fly via Air Canada, United Airlines, or WestJet to get the fastest option. London, Ontario and United Kingdom are separated by a distance of 5844 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from London, Ontario to United Kingdom?

    While some choose either London - Edinburgh Turnhouse or London - London Gatwick, London - London Heathrow is the most popular route from London, Ontario to United Kingdom.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

See more FAQs

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Alternative routes for London to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to United Kingdom

Discover the top airline that operate flights from London 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 629,999 searches. Data last updated 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 874AverageC$ 1,253FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to United Kingdom?

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Can Cheapflights find flights from London to United Kingdom with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to United Kingdom, users can toggle the no change fees filter when performing a flight search.

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