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Cheap flights from London, ON to the United Kingdom from C$ 566

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
26 May — 2 Jun1
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 26 April 2026.

Thu 11/610:05 a.m.
YXU
-
EDI
1 stop16h 15m
Air Canada
Mon 15/69:00 a.m.
EDI
-
YXU
1 stop10h 58m
Air Canada
Deal found 24/4C$ 1,044
Sun 14/63:30 p.m.
YXU
-
EDI
1 stop10h 50m
Air Canada
Thu 18/69:00 a.m.
EDI
-
YXU
1 stop17h 37m
Air Canada
Deal found 21/4C$ 1,047
Mon 25/59:30 a.m.
YXU
-
EDI
1 stop16h 50m
Multiple Airlines
Mon 1/67:40 p.m.
EDI
-
YXU
2 stops26h 53m
Multiple Airlines
Deal found 25/4C$ 1,062
Sun 18/105:40 a.m.
YXU
-
LHR
2 stops22h 20m
United Airlines
Thu 22/109:30 a.m.
LHR
-
YXU
2 stops17h 10m
United Airlines
Deal found 23/4C$ 1,080
Sun 7/65:10 a.m.
YXU
-
LHR
2 stops22h 10m
United Airlines
Sun 14/64:40 p.m.
LHR
-
YXU
2 stops27h 18m
United Airlines
Deal found 24/4C$ 1,081
Sun 14/610:05 a.m.
YXU
-
LHR
2 stops19h 35m
United Airlines
Wed 24/68:00 a.m.
LHR
-
YXU
2 stops18h 37m
United Airlines
Deal found 26/4C$ 1,082
Sat 6/69:30 a.m.
YXU
-
LHR
2 stops16h 25m
United Airlines
Sat 13/69:30 a.m.
LHR
-
YXU
2 stops28h 13m
United Airlines
Deal found 22/4C$ 1,084
Mon 27/73:30 p.m.
YXU
-
EDI
1 stop10h 50m
Air Canada
Sun 2/89:00 a.m.
EDI
-
YXU
1 stop10h 55m
Air Canada
Deal found 21/4C$ 1,084
Mon 27/712:20 p.m.
YXU
-
EDI
2 stops14h 20m
Air Canada
Mon 3/89:00 a.m.
EDI
-
YXU
1 stop10h 55m
Air Canada
Deal found 21/4C$ 1,088
Sun 7/66:10 p.m.
YXU
-
LHR
1 stop9h 25m
Air Canada
Sun 14/66:00 a.m.
LHR
-
YXU
2 stops16h 33m
Air Canada
Deal found 23/4C$ 1,127
Wed 20/55:10 a.m.
YXU
-
LHR
1 stop20h 25m
Air Canada
Wed 27/58:30 a.m.
LHR
-
YXU
1 stop14h 03m
Air Canada
Deal found 22/4C$ 1,141
Sat 2/56:10 p.m.
YXU
-
LHR
1 stop12h 40m
Air Canada
Fri 15/58:40 a.m.
LHR
-
YXU
2 stops17h 58m
Air Canada
Deal found 26/4C$ 1,142

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 26 April 2026.

Round-trip from

C$ 1,044

One-way from

C$ 566

Popular in

August

Cheapest in

July

Average price

C$ 1,142
Air Canada
  • Air Canada
  • 11/6-15/6
  • 2 total stops
  • 27h 13m total
  • London to United Kingdom
Search Deals
WestJet
  • WestJet
  • 7/6
  • 2 total stops
  • 37h 45m total
  • London to United Kingdom
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 139 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 85 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 26 April 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

Sun 14/6

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

1 stop16h 15m

Edinburgh Turnhouse

Thu 18/6

9:00 a.m.-9:37 p.m.

1 stop17h 37m

C$ 1,044

LondonEdinburgh

YXU - EDI

YXUEDI

London

Thu 11/6

3:30 p.m.-7:20 a.m.

1 stop10h 50m

Edinburgh Turnhouse

Mon 15/6

9:00 a.m.-9:38 p.m.

1 stop17h 38m

C$ 1,045

LondonEdinburgh

YXU - EDI

YXUEDI

London

Mon 25/5

9:30 a.m.-7:20 a.m.

1 stop16h 50m

Edinburgh Turnhouse

Mon 1/6

7:40 p.m.-5:33 p.m.

2 stops26h 53m

C$ 1,062

LondonLondon

YXU - LHR

YXULHR

London

Fri 22/5

9:30 a.m.-8:40 p.m.

2 stops30h 10m

London Heathrow

Sun 31/5

4:40 p.m.-2:58 p.m.

2 stops27h 18m

C$ 1,080

LondonLondon

YXU - LHR

YXULHR

London

Tue 9/6

9:30 a.m.-6:55 a.m.

2 stops16h 25m

London Heathrow

Tue 16/6

9:30 a.m.-8:43 a.m.

2 stops28h 13m

C$ 1,080

LondonLondon

YXU - LHR

YXULHR

London

Sun 18/10

5:40 a.m.-9:00 a.m.

2 stops22h 20m

London Heathrow

Thu 22/10

9:30 a.m.-9:40 p.m.

2 stops17h 10m

C$ 1,080

LondonLondon

YXU - LHR

YXULHR

London

Sun 7/6

5:10 a.m.-8:20 a.m.

2 stops22h 10m

London Heathrow

Sun 14/6

4:40 p.m.-2:58 p.m.

2 stops27h 18m

C$ 1,081

LondonLondon

YXU - LHR

YXULHR

London

Sun 14/6

10:05 a.m.-10:40 a.m.

2 stops19h 35m

London Heathrow

Wed 24/6

8:00 a.m.-9:37 p.m.

2 stops18h 37m

C$ 1,082

LondonLondon

YXU - LHR

YXULHR

London

Thu 21/5

6:10 p.m.-6:55 a.m.

2 stops31h 45m

London Heathrow

Thu 28/5

8:00 a.m.-8:53 a.m.

2 stops29h 53m

C$ 1,082

LondonLondon

YXU - LHR

YXULHR

London

Mon 15/6

5:10 a.m.-7:15 a.m.

2 stops21h 05m

London Heathrow

Fri 26/6

8:00 a.m.-9:37 p.m.

2 stops18h 37m

C$ 1,082

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 26 April 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
10,970 reviews
Check prices

Food

6.3

Boarding

7.3

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Thomas,Apr 2026

YYZ - LHR

Food is sub par. I travel a lot and AC food is not good
Air Canada
7.1
Good
10,970 reviews
Air Canada
7.1
Good
10,970 reviews
Check prices

Food

6.3

Boarding

7.3

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
6.0
Good

Thomas,Apr 2026

YYZ - LHR

Food is sub par. I travel a lot and AC food is not good

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 16h 15m. Fly via Air Canada, United Airlines, or WestJet to get the fastest option. London, Ontario and United Kingdom are separated by a distance of 5478 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 - Birmingham 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

Browse thousands of different options on Cheapflights for your next trip

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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 26 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 856AverageC$ 1,217FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to United Kingdom from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to United Kingdom?

Millions of users choose and trust Cheapflights to book the best flight deals from London to United Kingdom for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

Can Cheapflights notify me if prices for flights from London to United Kingdom become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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