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Cheap flights from London, ON to the United Kingdom from C$ 565

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
2 Jun — 9 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 3 May 2026.

Fri 12/610:05 a.m.
YXU
-
STN
2 stops26h 30m
Multiple Airlines
Fri 19/66:35 a.m.
STN
-
YXU
2 stops13h 22m
Multiple Airlines
Deal found 28/4C$ 1,033
Thu 11/63:30 p.m.
YXU
-
EDI
1 stop10h 50m
Air Canada
Mon 15/69:00 a.m.
EDI
-
YXU
1 stop10h 58m
Air Canada
Deal found 28/4C$ 1,041
Fri 12/610:05 a.m.
YXU
-
GLA
2 stops19h 05m
United Airlines
Tue 16/62:00 p.m.
GLA
-
YXU
2 stops32h 33m
United Airlines
Deal found 1/5C$ 1,046
Sun 6/93:30 p.m.
YXU
-
EDI
2 stops11h 10m
Air Canada
Thu 10/99:00 a.m.
EDI
-
YXU
1 stop10h 55m
Air Canada
Deal found 30/4C$ 1,049
Fri 2/103:30 p.m.
YXU
-
LHR
2 stops12h 50m
United Airlines
Tue 6/107:45 a.m.
LHR
-
YXU
2 stops18h 55m
United Airlines
Deal found 29/4C$ 1,074
Thu 28/59:30 a.m.
YXU
-
LHR
2 stops16h 45m
United Airlines
Thu 4/611:05 a.m.
LHR
-
YXU
2 stops26h 38m
United Airlines
Deal found 30/4C$ 1,075
Thu 14/59:30 a.m.
YXU
-
LHR
2 stops16h 15m
United Airlines
Tue 26/58:00 a.m.
LHR
-
YXU
2 stops18h 38m
United Airlines
Deal found 29/4C$ 1,076
Sun 14/610:05 a.m.
YXU
-
LHR
2 stops19h 35m
Lufthansa
Sun 21/612:15 p.m.
LHR
-
YXU
2 stops14h 22m
Lufthansa
Deal found 30/4C$ 1,082
Sun 3/55:10 a.m.
YXU
-
LHR
2 stops22h 50m
United Airlines
Sun 10/58:00 a.m.
LHR
-
YXU
2 stops18h 38m
United Airlines
Deal found 2/5C$ 1,083
Sun 6/910:05 a.m.
YXU
-
EDI
2 stops19h 30m
United Airlines
Thu 10/99:40 a.m.
EDI
-
YXU
2 stops34h 15m
United Airlines
Deal found 30/4C$ 1,116
Fri 12/610:05 a.m.
YXU
-
LHR
1 stop17h 30m
Air Canada
Fri 19/66:00 a.m.
LHR
-
YXU
2 stops20h 37m
Air Canada
Deal found 28/4C$ 1,128
Sun 14/63:30 p.m.
YXU
-
LHR
1 stop15h 20m
Multiple Airlines
Sun 21/612:15 p.m.
LHR
-
YXU
2 stops14h 22m
Multiple Airlines
Deal found 30/4C$ 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 3 May 2026.

Round-trip from

C$ 1,033

One-way from

C$ 565

Popular in

August

Cheapest in

July

Average price

C$ 1,008
12/6-19/6
  • 12/6-19/6
  • 4 total stops
  • 39h 52m total
  • London to United Kingdom
Search Deals
WestJet
  • WestJet
  • 12/6
  • 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$ 137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 3 May 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 11/6

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

1 stop10h 50m

Edinburgh Turnhouse

Mon 15/6

9:00 a.m.-2:58 p.m.

1 stop10h 58m

C$ 1,041
Quickest round-trip

LondonEdinburgh

YXU - EDI

YXUEDI

London

Sun 6/9

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

1 stop10h 50m

Edinburgh Turnhouse

Thu 10/9

9:00 a.m.-2:55 p.m.

1 stop10h 55m

C$ 1,042

LondonLondon

YXU - STN

YXUSTN

London

Fri 12/6

3:30 p.m.-2:15 p.m.

3 stops17h 45m

London Stansted

Fri 19/6

6:35 a.m.-2:57 p.m.

2 stops13h 22m

C$ 1,045

LondonGlasgow

YXU - GLA

YXUGLA

London

Fri 12/6

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

2 stops19h 05m

Glasgow Intl

Tue 16/6

2:00 p.m.-2:58 p.m.

2 stops29h 58m

C$ 1,046

LondonLondon

YXU - LHR

YXULHR

London

Thu 28/5

9:30 a.m.-7:15 a.m.

2 stops16h 45m

London Heathrow

Thu 4/6

11:05 a.m.-8:43 a.m.

2 stops26h 38m

C$ 1,075

LondonLondon

YXU - LHR

YXULHR

London

Sun 14/6

3:30 p.m.-9:35 p.m.

2 stops25h 05m

London Heathrow

Sun 21/6

4:40 p.m.-2:57 p.m.

2 stops27h 17m

C$ 1,075

LondonLondon

YXU - LHR

YXULHR

London

Thu 14/5

9:30 a.m.-6:45 a.m.

2 stops16h 15m

London Heathrow

Tue 26/5

8:00 a.m.-9:38 p.m.

2 stops18h 38m

C$ 1,076

LondonLondon

YXU - LHR

YXULHR

London

Fri 12/6

5:10 a.m.-5:55 a.m.

2 stops19h 45m

London Heathrow

Fri 19/6

9:30 a.m.-2:57 p.m.

2 stops34h 27m

C$ 1,076

LondonLondon

YXU - LHR

YXULHR

London

Fri 5/6

9:30 a.m.-10:40 a.m.

2 stops20h 10m

London Heathrow

Sun 21/6

4:40 p.m.-2:57 p.m.

2 stops27h 17m

C$ 1,078

LondonLondon

YXU - LHR

YXULHR

London

Fri 2/10

10:05 a.m.-5:55 a.m.

2 stops14h 50m

London Heathrow

Tue 6/10

7:45 a.m.-9:40 p.m.

2 stops18h 55m

C$ 1,078

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 60 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 3 May 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
10,993 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Boarding

7.3

Food

6.3

Entertainment

6.8

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
10,993 reviews
Air Canada
7.1
Good
10,993 reviews
Check prices

Comfort

7.1

Overall

7.1

Crew

7.8

Boarding

7.3

Food

6.3

Entertainment

6.8

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 10h 50m. 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 - London Heathrow or London - Birmingham, London - Glasgow Intl 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

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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 3 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 852AverageC$ 1,210FlexibilityNo 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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