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Cheap flights from the United Kingdom to London, ON from C$ 721

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
28 Jul — 4 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to London

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to London
Explore the most affordable flight options available from United Kingdom to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 June 2026.

Wed 14/108:40 a.m.
LHR
-
YXU
2 stops18h 00m
Air Canada
Sun 18/106:20 p.m.
YXU
-
LHR
1 stop10h 15m
Air Canada
Deal found 24/6C$ 979
Wed 7/108:40 a.m.
LHR
-
YXU
2 stops18h 00m
Air Canada
Sun 11/1010:05 a.m.
YXU
-
LHR
2 stops20h 15m
Air Canada
Deal found 25/6C$ 981
Wed 7/109:00 a.m.
MAN
-
YXU
1 stop10h 55m
Air Canada
Sun 11/106:20 p.m.
YXU
-
MAN
2 stops35h 05m
Air Canada
Deal found 24/6C$ 1,005
Wed 1/712:40 p.m.
LHR
-
YXU
2 stops14h 00m
Air Canada
Fri 10/79:10 p.m.
YXU
-
LHR
1 stop28h 25m
Air Canada
Deal found 24/6C$ 1,035
Sat 29/86:50 a.m.
LHR
-
YXU
2 stops13h 00m
Air Canada
Mon 31/85:40 a.m.
YXU
-
LHR
2 stops19h 50m
Air Canada
Deal found 24/6C$ 1,186
Sat 29/86:50 a.m.
LHR
-
YXU
2 stops13h 00m
Multiple Airlines
Mon 31/810:05 a.m.
YXU
-
LHR
1 stop17h 30m
Multiple Airlines
Deal found 24/6C$ 1,189
Fri 21/85:40 p.m.
LHR
-
YXU
1 stop20h 40m
Air Canada
Mon 31/86:20 p.m.
YXU
-
LHR
1 stop10h 15m
Air Canada
Deal found 25/6C$ 1,196
Wed 8/79:00 a.m.
MAN
-
YXU
1 stop16h 32m
Multiple Airlines
Sun 12/79:10 p.m.
YXU
-
MAN
2 stops43h 40m
Multiple Airlines
Deal found 26/6C$ 1,202
Thu 8/102:00 p.m.
GLA
-
YXU
2 stops24h 20m
Air Canada
Mon 12/105:40 a.m.
YXU
-
GLA
2 stops23h 30m
Air Canada
Deal found 24/6C$ 1,248
Tue 11/88:40 p.m.
GLA
-
YXU
3 stops30h 00m
Multiple Airlines
Tue 18/82:40 p.m.
YXU
-
GLA
3 stops26h 30m
Multiple Airlines
Deal found 27/6C$ 1,399
Wed 12/81:10 p.m.
LCY
-
YXU
2 stops33h 32m
Multiple Airlines
Wed 19/86:20 p.m.
YXU
-
LCY
2 stops18h 35m
Multiple Airlines
Deal found 28/6C$ 1,467
Thu 16/77:15 p.m.
LCY
-
YXU
2 stops27h 27m
Multiple Airlines
Mon 20/76:20 p.m.
YXU
-
LCY
2 stops33h 20m
Multiple Airlines
Deal found 27/6C$ 1,530

Find flight deals from United Kingdom to London

Keep the following information in mind while searching for United Kingdom to London flight deals. Data was last updated 28 June 2026.

Round-trip from

C$ 979

One-way from

C$ 721

Popular in

August

Cheapest in

January

Average price

C$ 1,255
Air Canada
  • Air Canada
  • 14/10-18/10
  • 4 total stops
  • 37h 55m total
  • United Kingdom to London
Search Deals
Air Canada
  • Air Canada
  • 14/9
  • 2 total stops
  • 15h 53m total
  • United Kingdom to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 212 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 65 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 United Kingdom to London 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 28 June 2026.
Use the filters below to find and compare flights from the United Kingdom to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 14/10

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

2 stops18h 00m

London

Sun 18/10

6:20 p.m.-9:35 a.m.

1 stop10h 15m

C$ 979

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 7/10

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

2 stops18h 00m

London

Sun 11/10

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

1 stop12h 30m

C$ 982

ManchesterLondon

MAN - YXU

MANYXU

Manchester

Wed 7/10

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

1 stop10h 55m

London

Sun 11/10

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

2 stops35h 05m

C$ 1,005

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sat 29/8

6:50 a.m.-5:42 p.m.

2 stops15h 52m

London

Mon 31/8

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

1 stop12h 30m

C$ 1,209

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 21/8

12:40 p.m.-9:40 p.m.

2 stops14h 00m

London

Mon 31/8

6:20 p.m.-9:00 p.m.

2 stops21h 40m

C$ 1,213
Quickest round-trip

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 16/7

8:30 a.m.-2:52 p.m.

1 stop11h 22m

London

Mon 20/7

10:05 a.m.-6:30 a.m.

2 stops15h 25m

C$ 1,233

GlasgowLondon

GLA - YXU

GLAYXU

Glasgow Intl

Thu 8/10

2:00 p.m.-9:20 a.m.

2 stops24h 20m

London

Mon 12/10

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

2 stops23h 30m

C$ 1,248

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sat 29/8

6:50 a.m.-2:50 p.m.

2 stops13h 00m

London

Mon 31/8

10:05 a.m.-6:30 a.m.

2 stops15h 25m

C$ 1,253

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 16/7

10:25 a.m.-2:52 p.m.

2 stops33h 27m

London

Mon 20/7

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

1 stop13h 05m

C$ 1,333

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 24/7

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

2 stops16h 02m

London

Tue 4/8

3:30 p.m.-9:00 p.m.

2 stops24h 30m

C$ 1,382

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/6

Showing 1-10 of 44 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to London

Have a flexible travel schedule? Discover the best time to fly to London from United Kingdom 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 the United Kingdom to London

What is the cheapest month to book a flight from United Kingdom to London, Ontario?

Currently, April is the cheapest month in which you can book a flight from United Kingdom to London, Ontario (average of C$ 816). Flying from United Kingdom to London, Ontario in August is currently the most expensive (average of C$ 1,309). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to London. 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 into for flights to London from United Kingdom?

    If you book a flight to London from United Kingdom, you will be flying to London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London.

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

    There are many flights that can get you from United Kingdom to London, Ontario in 16h 17m. Fly via Air Canada, Lufthansa, or United Airlines to get the fastest option. There are 5874 km between United Kingdom and London, Ontario. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular flight routes from United Kingdom to London, Ontario are London Heathrow - London, London City - London and Bristol - London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to London, Ontario?

    Currently, April is the cheapest month in which you can book a flight from United Kingdom to London, Ontario (average of C$ 816). Flying from United Kingdom to London, Ontario in August is currently the most expensive (average of C$ 1,309). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

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Fly with Cheapflights

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

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

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

Need flexible booking options for your flight to London from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on United Kingdom to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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