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Cheap flights from London, ON to the United Kingdom from C$ 528

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — LHR
5 Sep — 12 Sep1
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 6 August 2026.

Mon 5/106:20 p.m. -
1 stop31h 10m
Fri 9/109:00 a.m. -
1 stop10h 55m
Deal found 3/8C$ 989
Thu 17/93:30 p.m. -
2 stops24h 50m
Thu 24/96:30 a.m. -
2 stops20h 10m
Deal found 3/8C$ 990
Thu 10/93:30 p.m. -
1 stop10h 00m
Sun 13/99:00 a.m. -
1 stop17h 40m
Deal found 1/8C$ 992
Sun 18/103:30 p.m. -
1 stop10h 50m
Thu 22/109:00 a.m. -
1 stop13h 45m
Deal found 3/8C$ 1,014
Fri 18/93:30 p.m. -
2 stops16h 45m
Fri 25/96:15 a.m. -
2 stops13h 35m
Deal found 4/8C$ 1,043
Sun 18/105:40 a.m. -
2 stops21h 45m
Thu 22/1011:30 a.m. -
2 stops26h 50m
Deal found 3/8C$ 1,087
Mon 14/95:40 a.m. -
2 stops23h 55m
Mon 21/912:30 p.m. -
2 stops34h 13m
Deal found 4/8C$ 1,088
Sun 4/1010:05 a.m. -
2 stops20h 50m
Thu 8/103:20 p.m. -
2 stops28h 35m
Deal found 4/8C$ 1,090
Wed 16/910:05 a.m. -
2 stops15h 50m
Tue 6/1010:25 a.m. -
2 stops16h 15m
Deal found 1/8C$ 1,091
Tue 1/910:05 a.m. -
2 stops16h 10m
Tue 8/912:15 p.m. -
2 stops26h 05m
Deal found 4/8C$ 1,105
Fri 2/106:20 p.m. -
1 stop12h 30m
Sun 4/1011:05 a.m. -
2 stops32h 50m
Deal found 31/7C$ 1,156
Wed 2/96:20 p.m. -
1 stop31h 10m
Wed 16/99:00 a.m. -
1 stop13h 43m
Deal found 4/8C$ 1,185

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 6 August 2026.

Round-trip from

C$ 989

One-way from

C$ 528
Air Canada
  • Air Canada
  • 5/10-9/10
  • 2 total stops
  • 42h 05m total
  • London to United Kingdom
Search Deals
12/9
  • 12/9
  • 2 total stops
  • 46h 55m 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 6 August 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

LondonManchester

YXU London - MAN Manchester

YXUMAN

London

Mon 5/10

6:20 p.m.-6:30 a.m.

1 stop31h 10m

Manchester

Fri 9/10

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

1 stop10h 55m

C$ 989
Quickest round-trip

LondonEdinburgh

YXU London - EDI Edinburgh Turnhouse

YXUEDI

London

Sun 18/10

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

1 stop10h 50m

Edinburgh Turnhouse

Thu 22/10

9:00 a.m.-5:45 p.m.

1 stop13h 45m

C$ 1,014

LondonEdinburgh

YXU London - EDI Edinburgh Turnhouse

YXUEDI

London

Sun 18/10

5:40 a.m.-8:25 a.m.

2 stops21h 45m

Edinburgh Turnhouse

Thu 22/10

11:30 a.m.-9:20 a.m.

2 stops26h 50m

C$ 1,087

LondonEdinburgh

YXU London - EDI Edinburgh Turnhouse

YXUEDI

London

Mon 14/9

5:40 a.m.-10:35 a.m.

2 stops23h 55m

Edinburgh Turnhouse

Mon 21/9

12:30 p.m.-5:43 p.m.

2 stops34h 13m

C$ 1,088

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sun 4/10

10:05 a.m.-11:55 a.m.

2 stops20h 50m

London Heathrow

Thu 8/10

3:20 p.m.-2:55 p.m.

2 stops28h 35m

C$ 1,090

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Thu 17/9

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

2 stops16h 10m

London Heathrow

Thu 24/9

7:45 a.m.-5:43 p.m.

2 stops14h 58m

C$ 1,090

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Mon 31/8

3:30 p.m.-9:25 p.m.

2 stops24h 55m

London Heathrow

Mon 7/9

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

2 stops18h 40m

C$ 1,091

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Tue 1/9

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

2 stops16h 10m

London Heathrow

Tue 8/9

2:10 p.m.-9:20 a.m.

2 stops24h 10m

C$ 1,091

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sat 12/9

5:40 a.m.-5:55 a.m.

2 stops19h 15m

London Heathrow

Sat 19/9

7:45 a.m.-5:43 p.m.

2 stops14h 58m

C$ 1,091

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 16/9

6:20 p.m.-9:20 p.m.

2 stops22h 00m

London Heathrow

Wed 7/10

7:45 a.m.-5:45 p.m.

2 stops15h 00m

C$ 1,091

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

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.

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 20h 50m. Fly via Air Canada or United Airlines 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 - London Heathrow or London - Glasgow Intl, London - Edinburgh Turnhouse 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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