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£394+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
— YXU
19 Dec — 26 Dec1
1 adult
1 adult, Economy, 0 bags

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 19 November 2025.

Return from

£528

One-way from

£394

Popular in

December

Cheapest in

April

Average price

£572
Lufthansa
  • Lufthansa
  • 5/12-7/12
  • 3 total stops
  • 25h 20m total
  • London to London
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3/12
  • 3/12
  • 2 total stops
  • 22h 56m total
  • London to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£40 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
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Find flight deals to London

Enter your travel dates to find the best prices.

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 19 November 2025.

Fri 5/1206:35LHR - YXU
2 stops15h 30mLufthansa
Sun 7/1217:40YXU - LHR
1 stop9h 50mLufthansa
Deal found 17/11£528
Fri 5/1209:00LHR - YXU
2 stops28h 46mAir Canada
Sun 7/1217:40YXU - LHR
2 stops33h 25mAir Canada
Deal found 17/11£536
Wed 19/1118:00LHR - YXU
1 stop19h 46mAir Canada
Wed 26/1109:25YXU - LHR
2 stops16h 45mAir Canada
Deal found 18/11£550
Fri 5/1214:30LHR - YXU
3 stops23h 16mMultiple Airlines
Sun 7/1220:10YXU - LHR
2 stops34h 40mMultiple Airlines
Deal found 17/11£704
Wed 19/1109:20LCY - YXU
2 stops28h 26mMultiple Airlines
Wed 26/1109:25YXU - LCY
2 stops22h 30mMultiple Airlines
Deal found 18/11£744
Fri 5/1218:45STN - YXU
2 stops31h 36mMultiple Airlines
Sun 14/1209:25YXU - STN
3 stops34h 25mMultiple Airlines
Deal found 17/11£981
Wed 19/1114:50LHR - YXU
3 stops22h 56mMultiple Airlines
Wed 26/1105:15YXU - LHR
3 stops26h 35mMultiple Airlines
Deal found 18/11£1,136
Wed 31/1209:20LCY - YXU
3 stops28h 26mMultiple Airlines
Wed 7/109:25YXU - LCY
3 stops18h 15mMultiple Airlines
Deal found 16/11£1,168
Wed 19/1111:55LGW - YXU
2 stops14h 26mMultiple Airlines
Wed 26/1109:25YXU - LGW
3 stops19h 50mMultiple Airlines
Deal found 18/11£1,544
Mon 15/1207:55LHR - YXU
2 stops18h 26mUnited Airlines
Mon 22/1209:25YXU - LHR
2 stops15h 55mUnited Airlines
Deal found 17/11£1,803

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 19 November 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

Fri 5/12

11:10-17:05

1 stop10h 55m

London

Sun 7/12

17:40-08:30

1 stop9h 50m

£554

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 26/2

13:45-21:21

2 stops36h 36m

London

Mon 2/3

17:40-20:35

2 stops21h 55m

£560

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 20/2

07:40-17:05

2 stops14h 25m

London

Tue 24/2

17:40-08:30

1 stop9h 50m

£563

LondonLondon

LCY - YXU

LCYYXU

London City

Thu 12/3

09:40-21:21

2 stops39h 41m

London

Mon 16/3

17:40-17:35

2 stops43h 55m

£587

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 26/2

13:00-21:21

1 stop13h 21m

London

Mon 2/3

09:25-11:20

1 stop20h 55m

£587

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 1/1

13:25-08:46

2 stops24h 21m

London

Thu 8/1

05:10-07:10

2 stops21h 00m

£617

LondonLondon

STN - YXU

STNYXU

London Stansted

Fri 5/12

18:45-21:21

2 stops31h 36m

London

Sun 14/12

09:25-00:50

3 stops34h 25m

£981

LondonLondon

STN - YXU

STNYXU

London Stansted

Thu 1/1

05:55-08:46

3 stops31h 51m

London

Thu 8/1

17:40-00:05

3 stops25h 25m

£1,064

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Thu 1/1

18:40-17:05

3 stops27h 25m

London

Thu 8/1

17:40-17:50

3 stops19h 10m

£1,084

LondonLondon

LCY - YXU

LCYYXU

London City

Wed 31/12

09:20-08:46

3 stops28h 26m

London

Wed 7/1

09:25-08:40

3 stops18h 15m

£1,168

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 38 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 18 hours 7 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 £435

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 19 November 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
10,462 reviews
Check prices

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Boarding

7.3

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sept 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,462 reviews
Air Canada
7.1
Good
10,462 reviews
Check prices

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Boarding

7.3

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Shawna,Sept 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

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 (13 hours 7 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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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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