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Cheap flights from London, ON to the United Kingdom from C$ 620

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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
4 Jul — 11 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 4 June 2026.

Fri 12/65:10 a.m.
YXU
-
EDI
1 stop21h 10m
Air Canada
Tue 16/69:00 a.m.
EDI
-
YXU
1 stop17h 38m
Air Canada
Deal found 3/6C$ 967
Mon 15/610:05 a.m.
YXU
-
EDI
1 stop16h 15m
Air Canada
Fri 19/69:00 a.m.
EDI
-
YXU
1 stop10h 57m
Air Canada
Deal found 2/6C$ 968
Wed 15/76:20 p.m.
YXU
-
STN
2 stops12h 15m
Multiple Airlines
Wed 22/76:30 a.m.
STN
-
YXU
2 stops13h 22m
Multiple Airlines
Deal found 31/5C$ 1,035
Fri 12/66:10 p.m.
YXU
-
EDI
2 stops33h 15m
United Airlines
Tue 16/69:40 a.m.
EDI
-
YXU
2 stops34h 18m
United Airlines
Deal found 3/6C$ 1,039
Mon 15/65:10 a.m.
YXU
-
EDI
2 stops21h 55m
United Airlines
Fri 19/611:30 a.m.
EDI
-
YXU
2 stops26h 47m
United Airlines
Deal found 30/5C$ 1,043
Sat 13/610:05 a.m.
YXU
-
GLA
2 stops19h 05m
United Airlines
Wed 17/62:00 p.m.
GLA
-
YXU
2 stops32h 32m
United Airlines
Deal found 3/6C$ 1,048
Wed 2/910:05 a.m.
YXU
-
GLA
2 stops19h 05m
United Airlines
Sun 6/92:00 p.m.
GLA
-
YXU
2 stops36h 40m
United Airlines
Deal found 1/6C$ 1,051
Sun 4/106:20 p.m.
YXU
-
MAN
2 stops35h 05m
Air Canada
Thu 8/106:05 a.m.
MAN
-
YXU
2 stops16h 40m
Air Canada
Deal found 2/6C$ 1,062
Fri 2/1010:05 a.m.
YXU
-
LHR
2 stops16h 10m
United Airlines
Tue 6/107:45 a.m.
LHR
-
YXU
2 stops18h 55m
United Airlines
Deal found 2/6C$ 1,086
Tue 6/105:40 a.m.
YXU
-
LHR
2 stops22h 20m
United Airlines
Sat 10/107:45 a.m.
LHR
-
YXU
2 stops18h 55m
United Airlines
Deal found 1/6C$ 1,087
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 2/6C$ 1,140
Tue 6/103:30 p.m.
YXU
-
LHR
1 stop10h 05m
Air Canada
Sat 10/106:00 a.m.
LHR
-
YXU
2 stops16h 45m
Air Canada
Deal found 1/6C$ 1,141

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 4 June 2026.

Round-trip from

C$ 968

One-way from

C$ 620

Popular in

December

Cheapest in

February

Average price

C$ 925
Air Canada
  • Air Canada
  • 15/6-19/6
  • 2 total stops
  • 27h 12m total
  • London to United Kingdom
Search Deals
15/7
  • 15/7
  • 3 total stops
  • 33h 20m total
  • London to United Kingdom
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 4 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
Quickest round-trip

LondonEdinburgh

YXU - EDI

YXUEDI

London

Mon 15/6

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

1 stop10h 50m

Edinburgh Turnhouse

Fri 19/6

9:00 a.m.-2:57 p.m.

1 stop10h 57m

C$ 968

LondonLondon

YXU - STN

YXUSTN

London

Wed 15/7

6:20 p.m.-11:35 a.m.

2 stops12h 15m

London Stansted

Wed 22/7

6:30 a.m.-2:52 p.m.

2 stops13h 22m

C$ 1,035

LondonEdinburgh

YXU - EDI

YXUEDI

London

Mon 15/6

5:10 a.m.-8:05 a.m.

2 stops21h 55m

Edinburgh Turnhouse

Fri 19/6

11:30 a.m.-9:17 a.m.

2 stops26h 47m

C$ 1,043

LondonGlasgow

YXU - GLA

YXUGLA

London

Wed 2/9

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

2 stops19h 05m

Glasgow Intl

Sun 6/9

2:00 p.m.-9:40 p.m.

2 stops36h 40m

C$ 1,051

LondonManchester

YXU - MAN

YXUMAN

London

Sun 4/10

6:20 p.m.-10:25 a.m.

2 stops35h 05m

Manchester

Thu 8/10

6:05 a.m.-5:45 p.m.

2 stops16h 40m

C$ 1,062

LondonLondon

YXU - LHR

YXULHR

London

Fri 2/10

10:05 a.m.-7:15 a.m.

2 stops16h 10m

London Heathrow

Tue 6/10

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

2 stops18h 55m

C$ 1,086

LondonLondon

YXU - LHR

YXULHR

London

Tue 6/10

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

2 stops22h 20m

London Heathrow

Sat 10/10

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

2 stops18h 55m

C$ 1,087

LondonLondon

YXU - LHR

YXULHR

London

Sun 14/6

5:10 a.m.-10:40 a.m.

2 stops24h 30m

London Heathrow

Wed 17/6

2:10 p.m.-9:17 a.m.

2 stops24h 07m

C$ 1,201

LondonLondon

YXU - LHR

YXULHR

London

Tue 6/10

6:20 p.m.-11:50 a.m.

1 stop12h 30m

London Heathrow

Sat 10/10

8:30 a.m.-2:55 p.m.

1 stop11h 25m

C$ 1,202

LondonLondon

YXU - LHR

YXULHR

London

Fri 7/8

5:40 a.m.-6:35 a.m.

1 stop19h 55m

London Heathrow

Thu 27/8

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

2 stops16h 45m

C$ 1,277

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/5

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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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 4 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
11,126 reviews
Check prices

Crew

7.8

Entertainment

6.8

Food

6.3

Boarding

7.3

Overall

7.1

Comfort

7.1

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
11,126 reviews
Air Canada
7.1
Good
11,126 reviews
Check prices

Crew

7.8

Entertainment

6.8

Food

6.3

Boarding

7.3

Overall

7.1

Comfort

7.1

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 16h 05m. Fly via Air Canada, United Airlines, or SWISS to get the fastest option. London, Ontario and United Kingdom are separated by a distance of 5874 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 Gatwick or London - London Stansted, 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

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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 4 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 869AverageC$ 1,246FlexibilityNo 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!

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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?

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