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£326+ 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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
— YXU
2 Jan — 9 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to London, ON in 2025

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 3 December 2025.

Fri 5/1211:10LHR - YXU
1 stop26h 36mAir Canada
Wed 10/1205:10YXU - LHR
1 stop22h 20mAir Canada
Deal found 2/12£557
Fri 5/1206:00LHR - YXU
2 stops31h 46mMultiple Airlines
Tue 6/117:40YXU - LHR
2 stops45h 55mMultiple Airlines
Deal found 2/12£569
Fri 5/1218:00LHR - YXU
1 stop28h 05mAir Canada
Tue 6/117:40YXU - LHR
2 stops45h 55mAir Canada
Deal found 2/12£589
Tue 30/1209:00LHR - YXU
2 stops37h 05mAir Canada
Tue 6/117:40YXU - LHR
2 stops32h 30mAir Canada
Deal found 2/12£711
Tue 30/1209:00LHR - YXU
2 stops28h 46mMultiple Airlines
Tue 6/117:40YXU - LHR
1 stop31h 50mMultiple Airlines
Deal found 2/12£770
Fri 5/1218:40LGW - YXU
2 stops43h 06mMultiple Airlines
Tue 6/109:50YXU - LGW
2 stops27h 00mMultiple Airlines
Deal found 2/12£917
Fri 5/1218:40LGW - YXU
2 stops31h 41mMultiple Airlines
Wed 10/1217:40YXU - LGW
2 stops35h 10mMultiple Airlines
Deal found 2/12£1,028
Tue 30/1221:40LGW - YXU
3 stops24h 25mMultiple Airlines
Tue 6/120:10YXU - LGW
2 stops32h 35mMultiple Airlines
Deal found 2/12£1,140
Tue 30/1209:50LCY - YXU
2 stops16h 31mMultiple Airlines
Tue 6/117:40YXU - LCY
2 stops14h 15mMultiple Airlines
Deal found 2/12£1,423
Sun 28/1211:40LGW - YXU
1 stop14h 41mMultiple Airlines
Sun 4/117:40YXU - LGW
1 stop11h 05mMultiple Airlines
Deal found 30/11£1,466

Find flight deals to London

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 3 December 2025.

Return from

£465

One-way from

£326

Popular in

December

Cheapest in

April

Average price

£757
14/1-21/1
  • 14/1-21/1
  • 4 total stops
  • 55h 44m total
  • London to London
Search Deals
WestJet
  • WestJet
  • 15/1
  • 1 total stop
  • 20h 44m 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 December 2025
Search Deals

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 3 December 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 15/1

06:00-06:34

3 stops29h 34m

London

Thu 22/1

20:10-07:10

2 stops30h 00m

£479

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 20/1

15:00-06:34

1 stop20h 34m

London

Wed 28/1

20:10-11:50

2 stops34h 40m

£482

LondonLondon

STN - YXU

STNYXU

London Stansted

Fri 16/1

06:30-21:20

3 stops19h 50m

London

Fri 23/1

17:40-20:05

2 stops21h 25m

£482

LondonLondon

STN - YXU

STNYXU

London Stansted

Thu 15/1

06:30-08:46

3 stops31h 16m

London

Thu 22/1

17:40-23:20

3 stops24h 40m

£487

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Thu 15/1

08:50-08:46

3 stops28h 56m

London

Thu 22/1

17:40-21:00

3 stops22h 20m

£497

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 16/1

06:30-17:05

2 stops15h 35m

London

Fri 23/1

09:50-06:30

1 stop15h 40m

£518

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Thu 15/1

07:40-17:05

2 stops14h 25m

London

Thu 22/1

09:50-06:30

1 stop15h 40m

£526

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Wed 14/1

18:40-08:46

2 stops43h 06m

London

Wed 21/1

05:10-17:50

2 stops31h 40m

£544

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Fri 16/1

18:40-21:20

2 stops31h 40m

London

Fri 23/1

17:40-17:50

2 stops19h 10m

£555

LondonLondon

LCY - YXU

LCYYXU

London City

Tue 20/1

09:15-21:21

2 stops17h 06m

London

Wed 28/1

17:40-12:55

2 stops14h 15m

£572

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 37 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 46 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 £433

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 3 December 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
10,496 reviews
Check prices

Boarding

7.3

Food

6.3

Entertainment

6.8

Overall

7.1

Comfort

7.1

Crew

7.8

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
10,496 reviews
Air Canada
7.1
Good
10,496 reviews
Check prices

Boarding

7.3

Food

6.3

Entertainment

6.8

Overall

7.1

Comfort

7.1

Crew

7.8

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 (15 hours 13 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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