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£254+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
— YXU
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Return from

£544

One-way from

£254

Popular in

December

Cheapest in

April

Average price

£517
Air Canada
  • Air Canada
  • 2/10-7/10
  • 4 total stops
  • 31h 52m total
  • London to London
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10/12
  • 10/12
  • 2 total stops
  • 40h 09m total
  • London to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£73 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
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Average for return flights in September 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 18 September 2025.

Thu 2/1006:50LHR - YXU
2 stops13h 12mAir Canada
Tue 7/1009:55YXU - LHR
2 stops18h 40mAir Canada
Deal found 16/9£544
Thu 9/1006:00LHR - YXU
2 stops32h 17mMultiple Airlines
Mon 13/1009:55YXU - LHR
2 stops15h 35mMultiple Airlines
Deal found 16/9£546
Thu 9/1006:50LHR - YXU
2 stops13h 12mAir Canada
Mon 13/1009:55YXU - LHR
2 stops18h 40mAir Canada
Deal found 17/9£550
Thu 2/1006:50LHR - YXU
2 stops13h 12mMultiple Airlines
Tue 7/1009:55YXU - LHR
1 stop15h 40mMultiple Airlines
Deal found 18/9£561
Sat 1/1109:00LHR - YXU
2 stops16h 21mAir Canada
Sat 8/1117:40YXU - LHR
2 stops21h 55mAir Canada
Deal found 17/9£561
Thu 30/1009:40LCY - YXU
2 stops27h 06mMultiple Airlines
Thu 6/1109:25YXU - LCY
2 stops26h 15mMultiple Airlines
Deal found 15/9£608
Thu 16/1008:45LCY - YXU
2 stops29h 32mMultiple Airlines
Thu 23/1006:15YXU - LCY
2 stops29h 10mMultiple Airlines
Deal found 16/9£624
Fri 31/1006:10STN - YXU
3 stops19h 11mMultiple Airlines
Fri 7/1109:25YXU - STN
3 stops24h 55mMultiple Airlines
Deal found 16/9£624
Thu 9/1008:45LCY - YXU
2 stops29h 32mMultiple Airlines
Mon 13/1015:40YXU - LCY
2 stops21h 55mMultiple Airlines
Deal found 17/9£633
Fri 31/1009:55LCY - YXU
2 stops15h 26mMultiple Airlines
Fri 7/1117:40YXU - LCY
2 stops42h 00mMultiple Airlines
Deal found 16/9£651
Sat 1/1107:15STN - YXU
3 stops30h 31mMultiple Airlines
Sat 8/1109:25YXU - STN
3 stops32h 45mMultiple Airlines
Deal found 17/9£651
Thu 9/1006:40STN - YXU
3 stops19h 47mMultiple Airlines
Mon 13/1006:15YXU - STN
3 stops25h 10mMultiple Airlines
Deal found 17/9£659

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 18 September 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 2/10

06:50-15:02

2 stops13h 12m

London

Tue 7/10

15:40-08:35

1 stop11h 55m

£545

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 9/10

08:40-09:17

2 stops29h 37m

London

Mon 13/10

15:40-06:35

1 stop9h 55m

£546

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 9/10

06:50-09:17

2 stops31h 27m

London

Mon 13/10

06:15-06:30

2 stops19h 15m

£553

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 2/10

06:50-15:02

2 stops13h 12m

London

Tue 7/10

09:55-06:35

1 stop15h 40m

£561

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 26/2

09:00-21:21

2 stops17h 21m

London

Mon 2/3

09:25-06:30

1 stop16h 05m

£565

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 16/10

15:50-21:27

1 stop10h 37m

London

Thu 23/10

15:40-06:35

1 stop9h 55m

£567

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Thu 12/3

18:40-21:21

2 stops30h 41m

London

Mon 16/3

17:40-17:50

2 stops20h 10m

£576

LondonLondon

LCY - YXU

LCYYXU

London City

Thu 26/2

09:40-17:05

2 stops36h 25m

London

Mon 2/3

17:40-16:40

2 stops42h 00m

£595

LondonLondon

LCY - YXU

LCYYXU

London City

Thu 16/10

08:45-09:17

2 stops29h 32m

London

Thu 23/10

06:15-16:25

2 stops29h 10m

£624

LondonLondon

STN - YXU

STNYXU

London Stansted

Fri 31/10

06:10-21:21

3 stops19h 11m

London

Fri 7/11

09:25-15:20

3 stops24h 55m

£624

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 39 results
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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 19 hours 20 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 £572

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 18 September 2025.
Check out reviews from past customers who have flown Air Canada to Canada to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
10.0
Excellent

janet,Sept 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
10.0
Excellent

janet,Sept 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

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 32 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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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London.

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

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Of course! You can track prices for flights 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 to set up your price alerts.

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