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 15h 52m. Fly via Air Canada, Lufthansa, or SWISS to get the fastest option. Airlines will cover a distance of 3631 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 inches per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

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

Most travelers choose London Heathrow - London, London City - London or London Gatwick - London when deciding on the best route from United Kingdom to London, Ontario.

What is the cheapest time of day to fly from GB to YXU?

When flying from United Kingdom to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to London from United Kingdom?

Located just 5.3 mi from the city center, London (YXU) is the airport most travelers will use when flying to London from United Kingdom.

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 holiday 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.

£357+ Cheap Flights from the United Kingdom to London, Ontario

Cheap flight deals from United Kingdom to London

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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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 19 September 2026.

Mon 2/1109:00 -

2 stops15h 52m

Mon 9/1109:15 -

1 stop18h 15m

Deal found 18/9£429

Sun 1/1120:15 -

2 stops28h 37m

Sun 8/1109:15 -

1 stop18h 15m

Deal found 17/9£434

Tue 3/1109:30 -

2 stops15h 22m

Tue 10/1115:25 -

2 stops16h 35m

Deal found 19/9£443

Mon 2/1109:00 -

2 stops15h 52m

Mon 9/1109:15 -

1 stop18h 15m

Deal found 18/9£447

Mon 19/1008:40 -

2 stops16h 00m

Mon 26/1015:25 -

2 stops17h 35m

Deal found 16/9£449

Fri 16/1006:00 -

2 stops18h 40m

Fri 23/1018:20 -

2 stops21h 40m

Deal found 18/9£449

Thu 15/1018:35 -

2 stops30h 05m

Wed 21/1015:30 -

2 stops35h 55m

Deal found 15/9£463

Tue 3/1108:40 -

3 stops28h 57m

Tue 10/1115:25 -

2 stops21h 25m

Deal found 19/9£468

Tue 3/1117:45 -

2 stops43h 52m

Tue 10/1115:25 -

2 stops21h 15m

Deal found 19/9£470

Tue 20/1018:35 -

2 stops30h 05m

Tue 27/1015:25 -

2 stops22h 25m

Deal found 16/9£470

Mon 2/1109:50 -

2 stops27h 47m

Mon 9/1115:25 -

2 stops22h 05m

Deal found 18/9£472

Fri 13/1109:50 -

2 stops17h 07m

Mon 16/1109:15 -

2 stops27h 25m

Deal found 17/9£482

Best flights from United Kingdom to London
Discover carefully curated flight deals from United Kingdom to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Mon 2/1109:00 -

2 stops15h 52m

Mon 9/1109:15 -

2 stops16h 55m

Deal found 18/9£431

Sun 1/1120:15 -

2 stops28h 37m

Sun 8/1109:15 -

1 stop18h 15m

Deal found 17/9£434

Tue 3/1109:30 -

2 stops15h 22m

Tue 10/1115:25 -

2 stops16h 35m

Deal found 19/9£443

Thu 8/1009:25 -

2 stops39h 15m

Mon 12/1015:30 -

2 stops21h 20m

Deal found 15/9£601

Thu 15/1008:45 -

2 stops15h 55m

Wed 21/1015:30 -

1 stop10h 05m

Deal found 16/9£455

Tue 3/1108:40 -

3 stops28h 57m

Tue 10/1115:25 -

2 stops21h 25m

Deal found 19/9£468

Tue 3/1111:10 -

1 stop13h 42m

Tue 10/1105:30 -

1 stop24h 50m

Deal found 19/9£460

Tue 3/1117:45 -

2 stops43h 52m

Tue 10/1115:25 -

2 stops21h 15m

Deal found 19/9£470

Mon 2/1109:50 -

2 stops39h 02m

Mon 9/1109:15 -

2 stops27h 25m

Deal found 18/9£523

Thu 15/1017:40 -

1 stop19h 45m

Thu 22/1015:30 -

1 stop13h 05m

Deal found 17/9£465

Mon 2/1109:50 -

2 stops27h 47m

Mon 9/1115:25 -

2 stops22h 05m

Deal found 18/9£472

Thu 15/1009:15 -

2 stops15h 25m

Thu 22/1015:30 -

2 stops16h 05m

Deal found 17/9£627

Fri 30/1013:00 -

2 stops23h 37m

Fri 6/1115:25 -

1 stop10h 05m

Deal found 15/9£473

Wed 21/1009:15 -

2 stops28h 10m

Wed 28/1009:15 -

2 stops20h 00m

Deal found 16/9£526

Fri 27/1111:10 -

1 stop15h 47m

Tue 1/1215:20 -

1 stop10h 10m

Deal found 17/9£483

Mon 19/1009:15 -

2 stops15h 25m

Mon 26/1020:30 -

2 stops17h 10m

Deal found 16/9£661

Fri 30/1011:40 -

2 stops22h 55m

Fri 6/1106:40 -

2 stops22h 05m

Deal found 15/9£548

Sun 1/1118:40 -

2 stops30h 12m

Sun 8/1109:15 -

2 stops27h 35m

Deal found 17/9£598

Thu 25/211:30 -

1 stop32h 12m

Mon 1/309:15 -

1 stop18h 45m

Deal found 17/9£605

Mon 2/1118:40 -

2 stops30h 12m

Mon 9/1115:25 -

2 stops19h 20m

Deal found 18/9£633

Mon 19/1018:30 -

2 stops42h 55m

Mon 26/1020:30 -

2 stops17h 10m

Deal found 17/9£648

Tue 3/1108:15 -

3 stops29h 22m

Tue 10/1115:25 -

2 stops21h 40m

Deal found 19/9£678

Thu 25/206:00 -

2 stops28h 35m

Mon 1/306:40 -

2 stops31h 00m

Deal found 17/9£2,950

Mon 2/1107:00 -

3 stops30h 37m

Mon 9/1115:25 -

3 stops23h 30m

Deal found 18/9£717

Sun 1/1121:25 -

2 stops27h 27m

Sun 8/1105:30 -

2 stops29h 05m

Deal found 17/9£722

Sat 31/1012:55 -

3 stops35h 57m

Sat 7/1109:15 -

2 stops25h 15m

Deal found 16/9£741

Mon 2/1120:15 -

2 stops28h 37m

Mon 9/1115:25 -

2 stops18h 05m

Deal found 18/9£779

Tue 13/1014:00 -

2 stops29h 50m

Sat 17/1020:20 -

2 stops56h 50m

Deal found 18/9£1,629

Sat 31/1005:55 -

2 stops17h 57m

Sat 7/1109:15 -

2 stops41h 40m

Deal found 16/9£963

Thu 15/1017:40 -

3 stops29h 03m

Wed 21/1006:10 -

2 stops25h 35m

Deal found 16/9£1,036

Find flight deals from United Kingdom to London

Round-trip from	£429
One-way from	£334

Air Canada
2/11-9/11
3 total stops
34h 07m total
United Kingdom to London

Search Deals

WestJet
28/10-31/12
1 total stop
19h 45m total
United Kingdom to London

Search Deals

Cheapflights Fare Finder

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 return flight

LondonLondon

LGW London Gatwick - YXU London

LGWYXU

London Gatwick

Tue 15/12

06:10-05:35

2 stops28h 25m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£360

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Tue 15/12

14:50-05:35

1 stop19h 45m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£364

LondonLondon

LGW London Gatwick - YXU London

LGWYXU

London Gatwick

Wed 21/10

18:35-19:40

2 stops30h 05m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£375

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 2/11

09:00-08:37

2 stops28h 37m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£379

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Tue 3/11

19:25-21:57

2 stops31h 32m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£382

LondonLondon

LGW London Gatwick - YXU London

LGWYXU

London Gatwick

Mon 2/11

18:40-19:52

2 stops30h 12m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£387

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 19/10

08:30-19:40

1 stop16h 10m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£387

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Mon 2/11

18:40-19:52

2 stops30h 12m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£388

LondonLondon

LHR London Heathrow - YXU London

LHRYXU

London Heathrow

Tue 15/12

07:40-21:52

2 stops19h 12m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£393

LondonLondon

LCY London City - YXU London

LCYYXU

London City

Tue 3/11

09:50-19:52

2 stops15h 02m

London

Wed 31/12

00:00-06:00

Nonstop0h 00m

£393

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LGW-YXU

LHR-YXU

LCY-YXU

GLA-YXU

STN-YXU

Estimated return 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

GB0-YXU

LGW-YXU

LHR-YXU

LCY-YXU

GLA-YXU

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing London

Read reviews from past customers who have flown with Air Canada from the United Kingdom to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Canada

7.1

Good

11,652 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sylvia,Aug 2026

YLW - YYZ

The fires impacted our trip. We sat in the plane for an hour with no air conditioning. We were a total of 5-hour delay but missed our connection. The staff tried to keep us aware of important information

Air Canada

7.1

Good

11,652 reviews

Air Canada

7.1

Good

11,652 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sylvia,Aug 2026

YLW - YYZ

Related info for your journey

What airport do you fly into for flights to London from United Kingdom?
Located just 5.3 mi from the city center, London (YXU) is the airport most travelers will use when flying to London from United Kingdom.
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 15h 52m. Fly via Air Canada, Lufthansa, or SWISS to get the fastest option. Airlines will cover a distance of 3631 mi. 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?
Most travelers choose London Heathrow - London, London City - London or London Gatwick - London when deciding on the best route from United Kingdom to London, Ontario.
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 holiday 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Ontario

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Alternative routes for United Kingdom to London

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Gatwick to London flights

London City to London flights

Liverpool to Pearson Intl flights

Top airline flying from United Kingdom to London

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£594	Average£760	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

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Deals for United Kingdom to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to London for you. Better yet — we are completely free to use.

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Cheap flights from the United Kingdom to London, Ontario from £357

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to London

Cheapest flights from United Kingdom to LondonExplore 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 19 September 2026.

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 19 September 2026.

Best flights from United Kingdom to LondonDiscover carefully curated flight deals from United Kingdom to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Discover carefully curated flight deals from United Kingdom to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Last-minute flights from United Kingdom to LondonDiscover last-minute flight deals from United Kingdom to London. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from United Kingdom to London. Data last updated 19 September 2026 and is based on user searches.

One-way flights from United Kingdom to LondonSearch for one-way flight options from United Kingdom to London. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Search for one-way flight options from United Kingdom to London. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.

Find flight deals from United Kingdom to London

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

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.

Cheapflights Insights

Reviews of airlines servicing London

Read reviews from past customers who have flown with Air Canada from the United Kingdom to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to London from United Kingdom?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Ontario

Book a non-stop flight to one of these other cities located in Ontario.

Search flights from United Kingdom to London by cabin class

Find flights from United Kingdom to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

United Kingdom and London flights

Browse other United Kingdom and London flight options. Last updated on 19 September 2026.

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United Kingdom to London flights

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

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

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

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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 19 September 2026.

Best flights from United Kingdom to London
Discover carefully curated flight deals from United Kingdom to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 September 2026.

Last-minute flights from United Kingdom to London
Discover last-minute flight deals from United Kingdom to London. Data last updated 19 September 2026 and is based on user searches.

One-way flights from United Kingdom to London
Search for one-way flight options from United Kingdom to London. Find affordable one-way fares based on user searches. Data last updated 19 September 2026.