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

The cheapet airlines for a one-way flight from United Kingdom to London, Ontario are Air Canada (£298), Lufthansa (£432), and WestJet (£488).

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

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

What is the cheapest month to fly from United Kingdom to London, Ontario?

The best pricing can be found in the month of March. Prices to London, Ontario from United Kingdom average £613. You can even find prices in March for less than £613, as users have found deals to London, Ontario from as low as £427. The month of December appears to be one of the more expensive times to travel to London, Ontario from United Kingdom. Flying in the targeted month can save you up to 64%.

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.

£732+ Flights from the United Kingdom to London, Ontario

Cheap flight deals from United Kingdom to London

Round-trip from	£416
One-way from	£270
Popular in	December
Cheapest in	March
Average price	£500

Air Canada
11/6-18/6
3 total stops
36h 08m total
United Kingdom to London

Search Deals

14/6
2 total stops
37h 09m total
United Kingdom to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£95 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£27 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 30 April 2025.

Wed 11/606:00LHR - YXU

2 stops20h 28mAir Canada

Wed 18/609:55YXU - LHR

1 stop15h 40mAir Canada

Deal found 29/4£416

Fri 13/606:00LHR - YXU

2 stops32h 19mMultiple Airlines

Fri 20/615:35YXU - LHR

1 stop10h 00mMultiple Airlines

Deal found 29/4£419

Tue 10/617:40LHR - YXU

1 stop26h 19mLufthansa

Tue 17/615:35YXU - LHR

1 stop13h 00mLufthansa

Deal found 29/4£455

Fri 13/608:55LCY - YXU

2 stops29h 23mMultiple Airlines

Fri 20/609:55YXU - LCY

2 stops17h 50mMultiple Airlines

Deal found 29/4£485

Thu 12/618:40LGW - YXU

2 stops49h 19mMultiple Airlines

Thu 19/609:55YXU - LGW

2 stops26h 55mMultiple Airlines

Deal found 29/4£515

Fri 13/608:30STN - YXU

3 stops35h 28mMultiple Airlines

Fri 20/615:35YXU - STN

2 stops21h 50mMultiple Airlines

Deal found 29/4£606

Sun 8/613:10GLA - YXU

2 stops49h 08mMultiple Airlines

Sun 15/609:55YXU - GLA

2 stops21h 30mMultiple Airlines

Deal found 29/4£645

Fri 13/614:10LHR - YXU

2 stops24h 08mUnited Airlines

Fri 20/615:35YXU - LHR

2 stops14h 50mUnited Airlines

Deal found 29/4£670

Sat 14/606:10GLA - YXU

2 stops20h 18mLufthansa

Mon 16/609:55YXU - GLA

2 stops21h 25mLufthansa

Deal found 29/4£694

Tue 10/610:45LGW - YXU

2 stops23h 29mWestJet

Tue 17/606:00YXU - LGW

2 stops46h 25mWestJet

Deal found 30/4£927

Sun 31/814:10LHR - YXU

1 stop20h 04mWestJet

Fri 5/906:00YXU - LHR

1 stop25h 05mWestJet

Deal found 30/4£931

Tue 10/619:10LCY - YXU

2 stops31h 18mLufthansa

Tue 17/615:35YXU - LCY

2 stops22h 00mLufthansa

Deal found 30/4£952

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 30 April 2025.

Wed 11/606:00LHR - YXU

2 stops20h 28mAir Canada

Wed 18/609:55YXU - LHR

1 stop15h 40mAir Canada

Deal found 29/4£416

Fri 13/606:00LHR - YXU

2 stops32h 19mMultiple Airlines

Fri 20/615:35YXU - LHR

1 stop10h 00mMultiple Airlines

Deal found 29/4£419

Tue 10/617:40LHR - YXU

1 stop26h 19mLufthansa

Tue 17/615:35YXU - LHR

1 stop13h 00mLufthansa

Deal found 29/4£455

Fri 13/614:10LHR - YXU

2 stops24h 08mUnited Airlines

Fri 20/615:35YXU - LHR

2 stops14h 50mUnited Airlines

Deal found 29/4£670

Tue 10/610:45LGW - YXU

2 stops23h 29mWestJet

Tue 17/620:00YXU - LGW

2 stops32h 25mWestJet

Deal found 30/4£927

Fri 13/608:55LCY - YXU

2 stops29h 23mMultiple Airlines

Fri 20/609:55YXU - LCY

2 stops17h 50mMultiple Airlines

Deal found 29/4£485

Thu 12/618:40LGW - YXU

2 stops49h 19mMultiple Airlines

Thu 19/609:55YXU - LGW

2 stops26h 55mMultiple Airlines

Deal found 29/4£515

Sun 31/820:05LHR - YXU

3 stops30h 22mSWISS

Fri 5/915:35YXU - LHR

3 stops21h 55mSWISS

Deal found 30/4£1,342

Sat 14/606:10GLA - YXU

2 stops20h 18mLufthansa

Mon 16/609:55YXU - GLA

2 stops21h 25mLufthansa

Deal found 29/4£694

Fri 13/608:30STN - YXU

3 stops35h 28mMultiple Airlines

Fri 20/615:35YXU - STN

2 stops21h 50mMultiple Airlines

Deal found 29/4£606

Sun 8/613:10GLA - YXU

2 stops49h 08mMultiple Airlines

Sun 15/609:55YXU - GLA

2 stops21h 30mMultiple Airlines

Deal found 29/4£645

Sun 31/814:10LHR - YXU

1 stop20h 04mWestJet

Fri 5/906:00YXU - LHR

1 stop25h 05mWestJet

Deal found 30/4£931

Last-minute flights from United Kingdom to London
Discover last-minute flight deals from United Kingdom to London. Data last updated 30 April 2025 and is based on user searches.

Thu 1/520:05LHR - YXU

2 stops30h 23mMultiple Airlines

Thu 8/515:45YXU - LHR

1 stop15h 05mMultiple Airlines

Deal found 29/4£573

Thu 1/514:00LGW - YXU

2 stops24h 18mMultiple Airlines

Thu 8/515:45YXU - LGW

2 stops24h 40mMultiple Airlines

Deal found 29/4£1,010

Thu 1/506:55STN - YXU

2 stops13h 08mMultiple Airlines

Thu 8/515:45YXU - STN

2 stops25h 40mMultiple Airlines

Deal found 29/4£1,175

Fri 2/509:30LHR - YXU

3 stops16h 58mUnited Airlines

Thu 8/515:45YXU - LHR

2 stops15h 00mUnited Airlines

Deal found 29/4£1,822

Tue 13/507:20BRS - YXU

2 stops19h 09mMultiple Airlines

Fri 16/515:45YXU - BRS

2 stops22h 30mMultiple Airlines

Deal found 29/4£983

Wed 28/506:50LHR - YXU

2 stops13h 13mAir Canada

Wed 4/606:15YXU - LHR

1 stop22h 20mAir Canada

Deal found 30/4£506

Wed 28/508:45LCY - YXU

3 stops29h 33mMultiple Airlines

Wed 4/609:55YXU - LCY

3 stops21h 35mMultiple Airlines

Deal found 30/4£620

Wed 28/510:45LGW - YXU

2 stops47h 29mWestJet

Wed 4/606:00YXU - LGW

2 stops22h 25mWestJet

Deal found 30/4£1,164

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 30 April 2025.

Sat 14/621:05LGW - YXU

2 stops37h 09mMultiple Airlines

Deal found 30/4£270

Fri 13/616:00LHR - YXU

1 stop10h 28mAir Canada

Deal found 29/4£298

Fri 13/619:50STN - YXU

3 stops38h 24mMultiple Airlines

Deal found 30/4£352

Fri 13/609:30LHR - YXU

2 stops16h 59mLufthansa

Deal found 30/4£432

Fri 13/614:10LHR - YXU

1 stop33h 59mWestJet

Deal found 29/4£488

Thu 31/721:25LHR - YXU

2 stops26h 44mMultiple Airlines

Deal found 29/4£522

Fri 13/610:45LGW - YXU

2 stops47h 29mWestJet

Deal found 29/4£618

Fri 13/608:55LCY - YXU

2 stops17h 34mLufthansa

Deal found 30/4£747

Wed 30/719:20LCY - YXU

2 stops26h 47mSWISS

Deal found 29/4£1,407

Fri 13/609:25LCY - YXU

2 stops28h 53mMultiple Airlines

Deal found 29/4£1,415

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

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 11/6

06:00-21:28

2 stops20h 28m

London

Wed 18/6

09:55-06:35

1 stop15h 40m

£416

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 13/6

06:00-09:19

2 stops32h 19m

London

Fri 20/6

15:35-06:35

1 stop10h 00m

£419

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 10/6

17:40-14:59

1 stop26h 19m

London

Tue 17/6

15:35-09:35

1 stop13h 00m

£455

LondonLondon

LCY - YXU

LCYYXU

London City

Fri 13/6

08:55-09:18

2 stops29h 23m

London

Fri 20/6

09:55-08:45

2 stops17h 50m

£485

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Thu 12/6

18:40-14:59

2 stops49h 19m

London

Thu 19/6

09:55-17:50

2 stops26h 55m

£515

LondonLondon

STN - YXU

STNYXU

London Stansted

Fri 13/6

08:30-14:58

3 stops35h 28m

London

Fri 20/6

15:35-18:25

2 stops21h 50m

£606

GlasgowLondon

GLA - YXU

GLAYXU

Glasgow Intl

Sun 8/6

13:10-09:18

2 stops49h 08m

London

Sun 15/6

09:55-12:25

2 stops21h 30m

£645

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 13/6

14:10-09:18

2 stops24h 08m

London

Fri 20/6

15:35-11:25

2 stops14h 50m

£670

GlasgowLondon

GLA - YXU

GLAYXU

Glasgow Intl

Sat 14/6

06:10-21:28

2 stops20h 18m

London

Mon 16/6

09:55-12:20

2 stops21h 25m

£694

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Tue 10/6

10:45-05:14

2 stops23h 29m

London

Tue 17/6

06:00-09:25

2 stops46h 25m

£927

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 25 results

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 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

Rainfall in London by month

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.

Temperature in London by month

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).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from United Kingdom to London, such as SWISS, United Airlines and WestJet. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

SWISS

7.5

Good

1,588 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

SWISS

7.5

Good

1,588 reviews

SWISS

7.5

Good

1,588 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

United Airlines

7.4

Good

8,696 reviews

SWISS

7.5

Good

1,588 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

WestJet

7.2

Good

2,826 reviews

SWISS

7.5

Good

1,588 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Air Canada

7.0

Good

9,244 reviews

SWISS

7.5

Good

1,588 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

Lufthansa

6.7

Okay

7,044 reviews

SWISS

7.5

Good

1,588 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

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.
What are the cheapest airlines to fly from United Kingdom to London, Ontario one-way?
The cheapet airlines for a one-way flight from United Kingdom to London, Ontario are Air Canada (£298), Lufthansa (£432), and WestJet (£488).
What are the most popular routes from United Kingdom to London, Ontario?
Most travelers choose London Heathrow - London, London Gatwick - London or London Stansted - 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 for United Kingdom to London

Heathrow to Pearson Intl flights

Gatwick to Pearson Intl flights

Heathrow to Toronto Island flights

London City to Pearson Intl flights

Gatwick to Toronto Island flights

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Stansted to Pearson Intl flights

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Gatwick to Pierre Elliott Trudeau Intl flights

Heathrow to Ottawa flights

Edinburgh to Pearson Intl flights

Southend to Pearson Intl flights

Manchester to Toronto Island flights

London City to Pierre Elliott Trudeau Intl flights

Luton to Pierre Elliott Trudeau Intl flights

Stansted to Pierre Elliott Trudeau Intl flights

Belfast Intl to Pearson Intl flights

Gatwick to Ottawa flights

Dublin to Pearson Intl flights

Istanbul to Pearson Intl flights

Birmingham to Pearson Intl flights

London City to Ottawa flights

Edinburgh to Toronto Island flights

Glasgow Intl to Pearson Intl flights

Belfast City to Pearson Intl flights

Leeds to Pearson Intl flights

Manchester to Pierre Elliott Trudeau Intl flights

Newcastle upon Tyne to Pearson Intl flights

Dublin to Toronto Island flights

Gatwick to Region of Waterloo Intl flights

Birmingham to Toronto Island flights

Heathrow to London flights

Bristol to Pearson Intl flights

Heathrow to Windsor flights

Edinburgh to Pierre Elliott Trudeau Intl flights

Manchester to Ottawa flights

Aberdeen to Pearson Intl flights

Gatwick to London flights

Stansted to London flights

Inverness to Pearson Intl flights

Top airline flying from United Kingdom to London

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£472	Average£571	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

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

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.

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

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.

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

Yes, we can. To see specific flights from United Kingdom to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from United Kingdom to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from the United Kingdom to London, Ontario from £270

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 14/6. 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

Keep the following information in mind while searching for United Kingdom to London flight deals. Data was last updated 30 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 30 April 2025.

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 30 April 2025.

Cheapflights Fare Finder

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

Everything you need to know about your flight from the United Kingdom to London

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 30 April 2025.

Read through reviews of airlines operating flights from United Kingdom to London, such as SWISS, United Airlines and WestJet. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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.

Top airline flying from United Kingdom to London

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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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Book with Flexibility

Travel Smart

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 30 April 2025.