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£313+ Cheap flights to London, Ontario

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
— YXU
30 Mar — 6 Apr1
1 adult

Flights to London, ON in 2025

Find the latest flights to London in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 25 March 2025.

Return from

£459

One-way from

£313

Popular in

December

Cheapest in

March

Average price

£447
Air Canada
  • Air Canada
  • 8/5-15/5
  • 3 total stops
  • 42h 23m total
  • London to London
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8/5
  • 8/5
  • 2 total stops
  • 26h 39m total
  • London to London
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Highest demand for flights based on searches. 17% potential increase in price (£103 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
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Average for return flights in March 2025
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Find flight deals to London

Cheapest flights to London
Explore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on 25 March 2025.

Thu 8/508:40LHR - YXU
2 stops17h 48mAir Canada
Thu 15/506:15YXU - LHR
1 stop24h 35mAir Canada
Deal found 24/3£459
Tue 6/518:35LGW - YXU
2 stops31h 53mMultiple Airlines
Tue 13/506:15YXU - LGW
2 stops30h 35mMultiple Airlines
Deal found 24/3£491
Fri 9/508:40LHR - YXU
2 stops17h 48mMultiple Airlines
Fri 16/515:35YXU - LHR
1 stop13h 00mMultiple Airlines
Deal found 24/3£493
Tue 6/508:45LCY - YXU
2 stops29h 33mMultiple Airlines
Tue 13/506:15YXU - LCY
2 stops29h 10mMultiple Airlines
Deal found 24/3£514
Sat 3/506:55LHR - YXU
2 stops19h 33mLufthansa
Sat 10/515:35YXU - LHR
2 stops13h 25mLufthansa
Deal found 24/3£534
Thu 8/506:55STN - YXU
2 stops19h 33mMultiple Airlines
Thu 15/509:55YXU - STN
3 stops31h 30mMultiple Airlines
Deal found 24/3£547
Thu 8/514:10LHR - YXU
2 stops24h 08mUnited Airlines
Thu 15/515:35YXU - LHR
2 stops12h 45mUnited Airlines
Deal found 24/3£633
Thu 8/508:45LCY - YXU
2 stops35h 13mLufthansa
Thu 15/509:55YXU - LCY
2 stops25h 30mLufthansa
Deal found 24/3£733
Thu 8/510:45LGW - YXU
3 stops37h 24mWestJet
Thu 15/506:00YXU - LGW
3 stops70h 25mWestJet
Deal found 23/3£1,018
Fri 9/514:10LHR - YXU
1 stop33h 59mWestJet
Fri 16/520:00YXU - LHR
1 stop35h 05mWestJet
Deal found 24/3£1,099

Cheapflights Fare Finder

Locate flights to London that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 25 March 2025.
Use the filters below to find and compare flights to London that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 8/5

08:40-21:28

2 stops17h 48m

London

Thu 15/5

06:15-11:50

1 stop24h 35m

£459

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Tue 6/5

18:35-21:28

2 stops31h 53m

London

Tue 13/5

06:15-17:50

2 stops30h 35m

£491

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 9/5

08:40-21:28

2 stops17h 48m

London

Fri 16/5

15:35-09:35

1 stop13h 00m

£493

LondonLondon

LCY - YXU

LCYYXU

London City

Tue 6/5

08:45-09:18

2 stops29h 33m

London

Tue 13/5

06:15-16:25

2 stops29h 10m

£514

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Sat 3/5

06:55-21:28

2 stops19h 33m

London

Sat 10/5

15:35-10:00

2 stops13h 25m

£534

LondonLondon

STN - YXU

STNYXU

London Stansted

Thu 8/5

06:55-21:28

2 stops19h 33m

London

Thu 15/5

09:55-22:25

3 stops31h 30m

£547

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 8/5

14:10-09:18

2 stops24h 08m

London

Thu 15/5

15:35-09:20

2 stops12h 45m

£633

LondonLondon

LCY - YXU

LCYYXU

London City

Thu 8/5

08:45-14:58

2 stops35h 13m

London

Thu 15/5

09:55-16:25

2 stops25h 30m

£733

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Thu 8/5

10:45-19:09

3 stops37h 24m

London

Thu 15/5

06:00-09:25

3 stops70h 25m

£1,018

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 9/5

14:10-19:09

1 stop33h 59m

London

Fri 16/5

20:00-12:05

1 stop35h 05m

£1,099

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 18 results
1
2

Best time to book a flight to London

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

How long is the flight to London?

On average, a flight from London to London takes 17 hours 10 minutes. Flights to London from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to London?

The most popular airline flying from London to London is Air Canada.

Air Canada

Air Canada

From £598

What are the cheapest airlines that fly to London?

The cheapest airline flying from London to London is Air Canada.

Rainfall in London by month

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

In terms of precipitation, rainfall in London 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 when rainfall is around 70.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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

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 25 March 2025.
Peruse reviews from past customers who have flown United Airlines, WestJet and Air Canada to London to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,605 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
United Airlines
7.4
Good
8,605 reviews
United Airlines
7.4
Good
8,605 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
WestJet
7.2
Good
2,785 reviews
United Airlines
7.4
Good
8,605 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Air Canada
7.0
Good
8,957 reviews
United Airlines
7.4
Good
8,605 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Lufthansa
6.7
Okay
6,949 reviews
United Airlines
7.4
Good
8,605 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.0

Boarding

7.7

Food

6.6

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

FAQs about flying to London

London insider information

  • Storybook Gardens has the type of entrance gate you would expect – a turreted castle. There are 54 attractions and eight “chapters” of interactive fun including Storybook Valley, Pirates’ Island and Old McDonald’s Farm. The Storybook Mascots – Slippery Seal, Lucy Seal, Waagosh the fox, and Pirate Pete the parrot – that wander around the grounds delight younger visitors.
  • Covent Garden Market is one of London’s most treasured landmarks. Established in 1845, it sells the best of the area’s organic foods, meats, ethnic foods and Southwestern Ontario’s largest selection of cheese. The outdoor farmers’ market takes place on Thursdays and Saturdays (May to November). There’s a lively busker program and the market hosts several festivals throughout the year.
  • Eldon House is London’s oldest residence. This splendid residence was built in 1834 for Captain John and Amelia Harris and given to the city in 1959, complete with family furnishings. Its recreated 19th-century gardens are beautiful and host traditional afternoon teas in the summer time.

  • What is the climate like in London?

    The climate is continental. Summers (June to August) are warm to hot and humid. The winters are cold. London has the most thunderstorms of any Canadian city.

  • When is the best time to fly to London?

    Peak Season:The summer months of June to August are high season. This is when most travellers visit London as the weather is at its best and school holidays take place. Off Season:Winter is generally the low season due to the cold weather.

  • What is the best way to travel around London?

    For travellers who intend to travel around Ontario, renting a car is best. London is an easily navigable city with a north-south/east-west grid layout. The London Transit Commission offers regular bus services throughout the city. There are well-marked bike and walking trails throughout London as well if you prefer a more active way of exploring the city.

  • What airport do you fly into for flights to London?

    If you book a flight to London, you will be flying into London, which is the city’s only airport. London (YXU) is located 5.3 mi from the center of London.

  • Can I find cheaper flights to London if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to London on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to London?

    Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to London.

  • Where does the fastest flight to London depart from?

    For those looking to save time traveling to London, London offers the quickest one-way flight (11 hours 18 minutes).

  • Does London have car hire?

    Yes. Those touching down at London can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London?

    Yes. London has hotels nearby for those requiring accommodations. Best Western London Airport Inn & Suites is the closest property to London (1.0 mi away from London).

See more FAQs

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