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Cheap flights from the United Kingdom to London, ON from C$ 605

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YXU
17 oct. — 24 oct.1
1 adult
1 adult, Economy

Cheap 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 17 septiembre 2025.

Round-trip from

C$ 1,021

One-way from

C$ 605

Popular in

December

Cheapest in

April

Average price

C$ 971
Air Canada
  • Air Canada
  • 2/10-7/10
  • 4 total stops
  • 31h 52m total
  • United Kingdom to London
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WestJet
  • WestJet
  • 10/12
  • 1 total stop
  • 33h 22m total
  • United Kingdom to London
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Highest demand for flights based on searches. 13% potential increase in price (C$ 256 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 87 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from United Kingdom to London

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 17 septiembre 2025.

jue. 2/106:50 a.m.LHR - YXU
2 stops13h 12mAir Canada
mar. 7/109:55 a.m.YXU - LHR
2 stops18h 40mAir Canada
Deal found 16/9C$ 1,021
jue. 9/108:40 a.m.LHR - YXU
2 stops29h 37mMultiple Airlines
lun. 13/103:40 p.m.YXU - LHR
1 stop9h 55mMultiple Airlines
Deal found 16/9C$ 1,025
jue. 9/106:50 a.m.LHR - YXU
2 stops13h 12mAir Canada
lun. 13/109:55 a.m.YXU - LHR
2 stops18h 40mAir Canada
Deal found 17/9C$ 1,033
sáb. 1/119:00 a.m.LHR - YXU
2 stops16h 21mAir Canada
sáb. 8/115:40 p.m.YXU - LHR
2 stops21h 55mAir Canada
Deal found 17/9C$ 1,054
jue. 16/108:45 a.m.LCY - YXU
2 stops29h 32mMultiple Airlines
jue. 23/106:15 a.m.YXU - LCY
2 stops29h 10mMultiple Airlines
Deal found 16/9C$ 1,171
jue. 9/108:45 a.m.LCY - YXU
2 stops29h 32mMultiple Airlines
lun. 13/103:40 p.m.YXU - LCY
2 stops21h 55mMultiple Airlines
Deal found 17/9C$ 1,189
vie. 31/109:55 a.m.LCY - YXU
2 stops15h 26mMultiple Airlines
vie. 7/115:40 p.m.YXU - LCY
2 stops42h 00mMultiple Airlines
Deal found 16/9C$ 1,223
vie. 31/105:45 a.m.MAN - YXU
3 stops31h 01mMultiple Airlines
vie. 7/115:15 a.m.YXU - MAN
3 stops30h 05mMultiple Airlines
Deal found 16/9C$ 1,226
jue. 2/108:45 a.m.LCY - YXU
3 stops29h 32mMultiple Airlines
mar. 7/109:55 a.m.YXU - LCY
3 stops21h 35mMultiple Airlines
Deal found 17/9C$ 1,308
vie. 31/1012:50 p.m.GLA - YXU
2 stops23h 56mMultiple Airlines
vie. 7/115:40 p.m.YXU - GLA
2 stops48h 30mMultiple Airlines
Deal found 16/9C$ 1,406
sáb. 1/119:10 a.m.MAN - YXU
3 stops28h 36mMultiple Airlines
sáb. 8/115:40 p.m.YXU - MAN
2 stops19h 10mMultiple Airlines
Deal found 17/9C$ 1,421
sáb. 1/116:00 a.m.GLA - YXU
2 stops19h 21mMultiple Airlines
sáb. 8/115:40 p.m.YXU - GLA
2 stops24h 30mMultiple Airlines
Deal found 17/9C$ 1,443

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 17 septiembre 2025.
Use the filters below to find and compare flights from the United Kingdom to London that are best for you.

Fly from

United Kingdom

Fly to

London

Route

Depart

Return

Price

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

jue. 2/10

6:50 a.m.-3:02 p.m.

2 stops13h 12m

London

mar. 7/10

3:40 p.m.-8:35 a.m.

1 stop11h 55m

C$ 1,023

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

jue. 9/10

8:40 a.m.-9:17 a.m.

2 stops29h 37m

London

lun. 13/10

3:40 p.m.-6:35 a.m.

1 stop9h 55m

C$ 1,025

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

jue. 9/10

6:50 a.m.-9:17 a.m.

2 stops31h 27m

London

lun. 13/10

6:15 a.m.-6:30 a.m.

2 stops19h 15m

C$ 1,039

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

jue. 16/10

3:50 p.m.-9:27 p.m.

1 stop10h 37m

London

jue. 23/10

3:40 p.m.-6:35 a.m.

1 stop9h 55m

C$ 1,065

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

jue. 26/2

9:00 a.m.-9:21 p.m.

2 stops17h 21m

London

lun. 2/3

9:25 a.m.-8:35 p.m.

2 stops30h 10m

C$ 1,065

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

sáb. 1/11

9:00 a.m.-9:21 p.m.

2 stops16h 21m

London

sáb. 8/11

5:40 p.m.-8:35 p.m.

2 stops21h 55m

C$ 1,076

LondonLondon

LCY - YXU

LCYYXU

London City

jue. 26/2

9:40 a.m.-5:05 p.m.

2 stops36h 25m

London

lun. 2/3

5:40 p.m.-4:40 p.m.

2 stops42h 00m

C$ 1,117

LondonLondon

LCY - YXU

LCYYXU

London City

jue. 16/10

8:45 a.m.-9:17 a.m.

2 stops29h 32m

London

jue. 23/10

6:15 a.m.-4:25 p.m.

2 stops29h 10m

C$ 1,171

LondonLondon

LCY - YXU

LCYYXU

London City

jue. 9/10

8:45 a.m.-9:17 a.m.

2 stops29h 32m

London

lun. 13/10

3:40 p.m.-6:35 p.m.

2 stops21h 55m

C$ 1,189

LondonLondon

LCY - YXU

LCYYXU

London City

vie. 31/10

9:55 a.m.-9:21 p.m.

2 stops15h 26m

London

vie. 7/11

5:40 p.m.-4:40 p.m.

2 stops42h 00m

C$ 1,223

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 34 results
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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, October is the cheapest month in which you can book a flight from United Kingdom to London, Ontario (average of C$ 243). Flying from United Kingdom to London, Ontario in December is currently the most expensive (average of C$ 478). 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 31h 27m. Fly via Air Canada or Lufthansa to get the fastest option. There are 5844 km between United Kingdom and London, Ontario. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to London, Ontario one-way?

    C$ 605 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Lufthansa and SWISS, with prices starting from C$ 1,255 and C$ 1,388, respectively.

  • 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 City - London, London Heathrow - London and Manchester - 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, October is the cheapest month in which you can book a flight from United Kingdom to London, Ontario (average of C$ 243). Flying from United Kingdom to London, Ontario in December is currently the most expensive (average of C$ 478). 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
Grand Bend
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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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