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£299+ 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 13/6. Fares are subject to change and may not be available on all flights or dates of travel.
— YXU
4 May — 11 May1
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 29 April 2025.

Return from

£406

One-way from

£299

Popular in

December

Cheapest in

March

Average price

£501
Air Canada
  • Air Canada
  • 11/6-18/6
  • 3 total stops
  • 43h 18m total
  • London to London
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Air Canada
  • Air Canada
  • 13/6
  • 1 total stop
  • 10h 28m total
  • London to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£95 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 29 April 2025.

Wed 11/617:10LHR - YXU
2 stops33h 18mAir Canada
Wed 18/615:35YXU - LHR
1 stop10h 00mAir Canada
Deal found 28/4£406
Tue 10/608:45LHR - YXU
2 stops29h 33mMultiple Airlines
Tue 17/615:35YXU - LHR
1 stop10h 00mMultiple Airlines
Deal found 28/4£426
Wed 11/609:30LHR - YXU
1 stop10h 28mLufthansa
Wed 18/615:35YXU - LHR
1 stop10h 00mLufthansa
Deal found 28/4£457
Wed 11/618:35LGW - YXU
2 stops43h 43mMultiple Airlines
Sun 15/609:55YXU - LGW
2 stops26h 55mMultiple Airlines
Deal found 28/4£486
Fri 13/608:55LCY - YXU
2 stops29h 23mMultiple Airlines
Fri 20/609:55YXU - LCY
2 stops17h 50mMultiple Airlines
Deal found 29/4£486
Tue 10/615:20LHR - YXU
2 stops22h 58mUnited Airlines
Tue 17/615:35YXU - LHR
2 stops14h 50mUnited Airlines
Deal found 28/4£553
Thu 12/606:55STN - YXU
2 stops13h 03mMultiple Airlines
Thu 19/615:35YXU - STN
2 stops20h 05mMultiple Airlines
Deal found 28/4£602
Tue 10/614:10LHR - YXU
1 stop20h 04mWestJet
Tue 17/620:00YXU - LHR
1 stop35h 05mWestJet
Deal found 28/4£954
Wed 11/610:45LGW - YXU
2 stops47h 29mWestJet
Wed 18/606:00YXU - LGW
2 stops22h 25mWestJet
Deal found 28/4£972

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 29 April 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

Wed 11/6

17:10-21:28

2 stops33h 18m

London

Wed 18/6

15:35-06:35

1 stop10h 00m

£406

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 11/6

17:10-21:28

2 stops33h 18m

London

Wed 18/6

15:35-06:35

1 stop10h 00m

£418

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Wed 11/6

09:30-14:58

1 stop10h 28m

London

Wed 18/6

15:35-06:35

1 stop10h 00m

£457

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Wed 11/6

18:35-09:18

2 stops43h 43m

London

Sun 15/6

09:55-17:50

2 stops26h 55m

£486

LondonLondon

LCY - YXU

LCYYXU

London City

Fri 13/6

08:55-09:18

2 stops29h 23m

London

Fri 20/6

09:55-08:45

2 stops17h 50m

£486

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 10/6

14:10-09:18

2 stops24h 08m

London

Tue 17/6

15:35-11:25

2 stops14h 50m

£553

LondonLondon

STN - YXU

STNYXU

London Stansted

Thu 12/6

06:55-14:58

2 stops13h 03m

London

Thu 19/6

15:35-16:40

2 stops20h 05m

£602

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Tue 10/6

14:10-05:14

1 stop20h 04m

London

Tue 17/6

20:00-12:05

1 stop35h 05m

£954

LondonLondon

LGW - YXU

LGWYXU

London Gatwick

Wed 11/6

10:45-05:14

2 stops47h 29m

London

Wed 18/6

06:00-09:25

2 stops22h 25m

£972

LondonLondon

LHR - YXU

LHRYXU

London Heathrow

Fri 13/6

16:00-21:28

1 stop10h 28m

£299

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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 16 hours 45 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 £632

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 29 April 2025.
United Airlines
7.4
Good
8,696 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
WestJet
7.2
Good
2,823 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.0
Good
9,240 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Lufthansa
6.7
Okay
7,042 reviews
United Airlines
7.4
Good
8,696 reviews
Check prices

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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 3 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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