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£412+ 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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
— YXU
11 Dec — 18 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 11 November 2025.

Return from

£517

One-way from

£412

Popular in

December

Cheapest in

April

Average price

£571
Lufthansa
  • Lufthansa
  • 4/12-8/12
  • 3 total stops
  • 27h 05m total
  • London to London
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23/3
  • 23/3
  • 2 total stops
  • 29h 36m 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).
Search Deals
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 11 November 2025.

Thu 4/1207:40LHR - YXU
2 stops14h 25mLufthansa
Mon 8/1217:40YXU - LHR
1 stop12h 40mLufthansa
Deal found 9/11£517
Mon 17/1119:15LHR - YXU
2 stops26h 50mLufthansa
Wed 10/1209:25YXU - LHR
1 stop16h 05mLufthansa
Deal found 10/11£535
Mon 17/1119:25LHR - YXU
2 stops26h 40mAir Canada
Wed 10/1209:25YXU - LHR
2 stops16h 45mAir Canada
Deal found 10/11£544
Thu 27/1113:30LHR - YXU
2 stops32h 35mMultiple Airlines
Mon 1/1217:40YXU - LHR
2 stops17h 40mMultiple Airlines
Deal found 9/11£548
Thu 27/1112:05LHR - YXU
2 stops38h 16mAir Canada
Mon 1/1205:10YXU - LHR
1 stop25h 10mAir Canada
Deal found 9/11£553
Fri 5/1209:00LHR - YXU
2 stops17h 21mAir Canada
Sun 14/1209:25YXU - LHR
2 stops20h 50mAir Canada
Deal found 11/11£559
Fri 14/1109:00LHR - YXU
2 stops37h 05mAir Canada
Tue 18/1117:40YXU - LHR
1 stop9h 50mAir Canada
Deal found 8/11£562
Fri 5/1206:35LHR - YXU
2 stops15h 30mMultiple Airlines
Sun 14/1209:25YXU - LHR
2 stops18h 00mMultiple Airlines
Deal found 11/11£570
Mon 8/1211:10LHR - YXU
1 stop10h 55mMultiple Airlines
Mon 15/1209:25YXU - LHR
1 stop16h 05mMultiple Airlines
Deal found 10/11£580
Thu 27/1116:05STN - YXU
3 stops34h 16mMultiple Airlines
Mon 1/1217:40YXU - STN
2 stops25h 15mMultiple Airlines
Deal found 9/11£680
Thu 27/1120:05LGW - YXU
3 stops30h 16mMultiple Airlines
Mon 1/1217:40YXU - LGW
3 stops32h 30mMultiple Airlines
Deal found 9/11£784
Wed 24/1209:50LCY - YXU
2 stops36h 15mMultiple Airlines
Wed 31/1205:10YXU - LCY
2 stops31h 30mMultiple Airlines
Deal found 9/11£813

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 11 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

Thu 27/11

13:30-17:05

2 stops32h 35m

London

Mon 1/12

05:10-13:00

2 stops26h 50m

£548

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 27/11

12:05-21:21

2 stops38h 16m

London

Mon 1/12

05:10-11:20

1 stop25h 10m

£553

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 4/12

13:00-21:21

1 stop13h 21m

London

Mon 8/12

17:40-11:20

1 stop12h 40m

£554

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 26/2

13:45-21:21

2 stops36h 36m

London

Mon 2/3

05:10-08:30

1 stop22h 20m

£560

LondonLondon

LCY - YXU

LCYYXU

London City

Thu 26/2

09:40-17:05

2 stops36h 25m

London

Mon 2/3

09:25-17:40

2 stops27h 15m

£588

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 26/2

11:10-21:21

1 stop15h 11m

London

Mon 2/3

09:25-08:30

1 stop18h 05m

£588

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Mon 8/12

09:00-08:46

2 stops28h 46m

London

Mon 15/12

09:25-07:10

2 stops16h 45m

£593

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

£630

LondonLondon

STN - YXU

STNYXU

London Stansted

Thu 27/11

16:05-21:21

3 stops34h 16m

London

Mon 1/12

17:40-23:55

2 stops25h 15m

£680

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Thu 27/11

20:05-21:21

3 stops30h 16m

London

Mon 1/12

17:40-07:10

3 stops32h 30m

£784

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 42 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 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 £434

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 11 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
10,437 reviews
Check prices

Crew

7.8

Comfort

7.1

Boarding

7.3

Entertainment

6.8

Food

6.3

Overall

7.1

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
10,437 reviews
Air Canada
7.1
Good
10,437 reviews
Check prices

Crew

7.8

Comfort

7.1

Boarding

7.3

Entertainment

6.8

Food

6.3

Overall

7.1

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 (14 hours 25 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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