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 15h 35m. Fly via United Airlines or Air Canada 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.

In terms of precipitation, rainfall in United Kingdom ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit United Kingdom when rainfall is around 40.0 mm.

If weather is an important factor for your trip to United Kingdom, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

While some choose either London - Edinburgh Turnhouse or London - Birmingham, London - London Heathrow is the most popular route from London, Ontario to United Kingdom.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to United Kingdom as you normally would.

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.

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.

C$ 513+ Cheap Flights from London, ON to the United Kingdom

Cheap flight deals from London to United Kingdom

Enter your travel dates to find the best prices.

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Best

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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 28 September 2026.

Tue 10/113:25 p.m. -

2 stops15h 35m

Tue 17/113:10 p.m. -

2 stops22h 27m

Deal found 26/9C$ 1,087

Fri 23/109:05 a.m. -

2 stops16h 40m

Fri 30/1012:00 p.m. -

2 stops24h 37m

Deal found 25/9C$ 1,089

Sun 8/115:30 a.m. -

2 stops19h 25m

Sun 15/111:35 p.m. -

2 stops24h 02m

Deal found 24/9C$ 1,092

Sat 7/115:30 a.m. -

2 stops19h 25m

Sat 14/1112:05 p.m. -

2 stops31h 42m

Deal found 23/9C$ 1,096

Thu 15/106:20 p.m. -

2 stops35h 05m

Mon 19/104:40 p.m. -

2 stops27h 10m

Deal found 25/9C$ 1,199

Wed 11/115:30 a.m. -

1 stop20h 00m

Wed 18/1111:10 a.m. -

1 stop15h 42m

Deal found 27/9C$ 1,236

Sun 18/108:20 p.m. -

1 stop30h 00m

Thu 22/109:40 a.m. -

2 stops27h 45m

Deal found 26/9C$ 1,242

Tue 10/113:25 p.m. -

1 stop14h 55m

Tue 17/119:00 a.m. -

2 stops17h 52m

Deal found 26/9C$ 1,247

Thu 15/106:20 p.m. -

1 stop9h 15m

Mon 19/109:30 a.m. -

2 stops15h 10m

Deal found 25/9C$ 1,251

Sun 8/119:15 a.m. -

1 stop18h 15m

Sun 15/116:00 a.m. -

2 stops20h 57m

Deal found 24/9C$ 1,256

Mon 9/119:15 a.m. -

2 stops17h 40m

Mon 16/119:25 a.m. -

2 stops17h 32m

Deal found 25/9C$ 1,266

Sun 18/106:20 p.m. -

2 stops32h 45m

Thu 22/1012:30 p.m. -

2 stops34h 13m

Deal found 25/9C$ 1,274

Best flights from London to United Kingdom
Discover carefully curated flight deals from London to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Wed 11/119:15 a.m. -

2 stops16h 05m

Wed 18/113:10 p.m. -

2 stops22h 27m

Deal found 27/9C$ 1,087

Sun 18/108:20 p.m. -

1 stop30h 00m

Thu 22/109:40 a.m. -

2 stops27h 45m

Deal found 26/9C$ 1,242

Sun 18/106:10 a.m. -

1 stop22h 40m

Thu 22/1011:50 a.m. -

1 stop22h 30m

Deal found 27/9C$ 1,325

Fri 20/113:25 p.m. -

2 stops35h 30m

Sun 22/117:10 p.m. -

2 stops31h 47m

Deal found 23/9C$ 1,423

Sat 24/103:30 p.m. -

2 stops15h 20m

Sat 31/1010:25 a.m. -

2 stops27h 12m

Deal found 26/9C$ 1,087

Tue 10/113:25 p.m. -

2 stops15h 35m

Tue 17/111:35 p.m. -

2 stops24h 02m

Deal found 27/9C$ 1,087

Fri 23/109:05 a.m. -

2 stops16h 40m

Fri 30/1012:00 p.m. -

2 stops24h 37m

Deal found 25/9C$ 1,089

Thu 22/106:20 p.m. -

2 stops30h 35m

Thu 29/103:10 p.m. -

2 stops27h 37m

Deal found 24/9C$ 1,092

Sun 8/115:30 a.m. -

2 stops19h 25m

Sun 15/111:35 p.m. -

2 stops24h 02m

Deal found 24/9C$ 1,092

Sat 7/115:30 a.m. -

2 stops19h 25m

Sat 14/1112:05 p.m. -

2 stops31h 42m

Deal found 23/9C$ 1,096

Thu 18/35:30 a.m. -

2 stops11h 50m

Wed 21/412:15 p.m. -

2 stops14h 29m

Deal found 26/9C$ 1,109

Mon 22/35:30 a.m. -

2 stops11h 50m

Wed 21/47:45 a.m. -

2 stops18h 59m

Deal found 26/9C$ 1,109

Sun 18/106:20 p.m. -

2 stops32h 45m

Thu 22/1012:30 p.m. -

2 stops34h 13m

Deal found 27/9C$ 1,274

Find flight deals from London to United Kingdom

Round-trip from	C$ 1,087
One-way from	C$ 513

United Airlines
10/11-17/11
4 total stops
38h 02m total
London to United Kingdom

Search Deals

19/11-31/12
2 total stops
36h 10m total
London to United Kingdom

Search Deals

Cheapflights Fare Finder

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

LondonEdinburgh

YXU London - EDI Edinburgh Turnhouse

YXUEDI

London

Thu 19/11

6:40 a.m.-11:50 p.m.

2 stops36h 10m

Edinburgh Turnhouse

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 513

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sat 7/11

9:15 a.m.-11:20 a.m.

1 stop21h 05m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 520

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sun 8/11

5:30 a.m.-11:20 a.m.

1 stop24h 50m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 522

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 11/11

9:15 a.m.-11:20 a.m.

1 stop21h 05m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 525

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sun 8/11

9:15 a.m.-6:30 a.m.

2 stops40h 15m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 530

Quickest round-trip

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Thu 22/10

3:30 p.m.-6:35 a.m.

1 stop10h 05m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 532

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Wed 11/11

3:25 p.m.-9:00 p.m.

2 stops24h 35m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 532

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Mon 9/11

5:30 a.m.-6:30 a.m.

2 stops20h 00m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 532

LondonLondon

YXU London - LHR London Heathrow

YXULHR

London

Sat 7/11

9:15 a.m.-6:30 a.m.

2 stops16h 15m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 534

LondonEdinburgh

YXU London - EDI Edinburgh Turnhouse

YXUEDI

London

Tue 10/11

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

2 stops37h 00m

Edinburgh Turnhouse

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 564

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/9

Showing 1-10 of 28 resultsSorted by cheapest first

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.

YXU-LHR

YXU-EDI

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

YXU-GB0

YXU-LHR

YXU-EDI

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

Related info for your journey

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 15h 35m. Fly via United Airlines or Air Canada 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 - Edinburgh Turnhouse or London - Birmingham, 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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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.

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Cheap flights from London, ON to the United Kingdom from C$ 513

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to United Kingdom

Cheapest flights from London to United KingdomExplore 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 28 September 2026.

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 28 September 2026.

Best flights from London to United KingdomDiscover carefully curated flight deals from London to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Discover carefully curated flight deals from London to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Last-minute flights from London to United KingdomDiscover last-minute flight deals from London to United Kingdom. Data last updated 28 September 2026 and is based on user searches.

Discover last-minute flight deals from London to United Kingdom. Data last updated 28 September 2026 and is based on user searches.

One-way flights from London to United KingdomSearch for one-way flight options from London to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.

Search for one-way flight options from London to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.

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

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.

Cheapflights Insights

Related info for your journey

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

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

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

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

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

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

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 London to United Kingdom

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Complete your trip

Complete your trip to United Kingdom by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to

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

Search flights from London to United Kingdom by cabin class

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

London and United Kingdom flights

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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 28 September 2026.

Best flights from London to United Kingdom
Discover carefully curated flight deals from London to United Kingdom that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Last-minute flights from London to United Kingdom
Discover last-minute flight deals from London to United Kingdom. Data last updated 28 September 2026 and is based on user searches.

One-way flights from London to United Kingdom
Search for one-way flight options from London to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.