£276+ Cheap flights from London, Ontario

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YXU — LHR
25 Apr — 2 May1
1 adult
1 adult, Economy, 0 bags

Find flights from London within your budget

 
Find flights departing from London that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 26 March 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLondon

YXU - STN

YXUSTN

London

Sat 9/5

18:10-12:55

2 stops13h 45m

London Stansted

Sat 16/5

06:35-21:38

2 stops20h 03m

£550

LondonLondon

YXU - LHR

YXULHR

London

Wed 3/6

09:30-06:55

2 stops16h 25m

London Heathrow

Sun 7/6

16:40-08:53

2 stops21h 13m

£585

LondonLondon

YXU - LHR

YXULHR

London

Sat 9/5

09:30-06:45

2 stops16h 15m

London Heathrow

Sat 16/5

14:10-08:53

2 stops23h 43m

£586

LondonLondon

YXU - LHR

YXULHR

London

Wed 22/4

09:25-06:55

2 stops16h 30m

London Heathrow

Wed 29/4

14:10-08:44

2 stops23h 34m

£586

LondonLondon

YXU - LHR

YXULHR

London

Tue 5/5

09:30-06:45

2 stops16h 15m

London Heathrow

Tue 12/5

12:15-21:38

2 stops14h 23m

£588

LondonLondon

YXU - LHR

YXULHR

London

Sat 18/4

17:40-06:45

2 stops32h 05m

London Heathrow

Sat 25/4

08:00-17:04

2 stops38h 04m

£588

LondonLondon

YXU - LHR

YXULHR

London

Thu 30/4

17:40-06:55

2 stops32h 15m

London Heathrow

Mon 11/5

12:15-08:53

2 stops25h 38m

£588

LondonLondon

YXU - LHR

YXULHR

London

Thu 7/5

09:30-08:30

2 stops18h 00m

London Heathrow

Thu 14/5

15:20-11:43

2 stops25h 23m

£588

LondonLondon

YXU - LHR

YXULHR

London

Fri 22/5

05:10-07:15

2 stops21h 05m

London Heathrow

Tue 26/5

14:10-08:53

2 stops23h 43m

£588

LondonLondon

YXU - LHR

YXULHR

London

Tue 26/5

12:20-10:25

2 stops17h 05m

London Heathrow

Sat 30/5

08:00-21:38

2 stops18h 38m

£588

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from London

Get recent, data-driven insights about flights from London including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from London, Ontario?

Currently, May is the cheapest month in which you can book a flight from London, Ontario (average of £364). Flying from London, Ontario in July will prove the most costly (average of £494). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Direct flights from Canada

Book a direct flight from one of these other cities located in Canada.
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Related info for your journey

Access useful and relevant information related to your journey from London. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 26 March 2026.

  • What are the most popular destinations to fly to from London, Ontario?

    This month, the top selected destinations from London, Ontario are Calgary, Vancouver Intl Airport, Cancún. Throughout the year, Calgary, Vancouver Intl Airport, Edmonton are some of the top choices made by users flying from London, Ontario.

  • What is the cheapest month to fly from London, Ontario?

    At the present moment the cheapest month to fly from London, Ontario is currently May; with July being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • How does Cheapflights help users find flights from London?

    Cheapflights helps you search for flights from London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from London?

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

  • Can Cheapflights find flights from London with no change fees?

    Need flexible booking options for your flight from London ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from London become cheaper?

    Yes, Cheapflights offers price alerts on flights from London so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London?

Cheapflights helps you search for flights from London via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London?

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

Can Cheapflights find flights from London with no change fees?

Need flexible booking options for your flight from London ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London become cheaper?

Yes, Cheapflights offers price alerts on flights from London so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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