£275+ Cheap flights from 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 30/5. 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 — LGW
16 May — 23 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 16 April 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

Thu 28/5

09:30-21:20

2 stops30h 50m

London Stansted

Thu 4/6

06:30-17:33

2 stops16h 03m

£534

LondonEdinburgh

YXU - EDI

YXUEDI

London

Tue 26/5

09:30-07:20

1 stop16h 50m

Edinburgh Turnhouse

Tue 2/6

09:00-17:33

1 stop13h 33m

£563

LondonLondon

YXU - LHR

YXULHR

London

Sun 3/5

05:10-06:45

2 stops20h 35m

London Heathrow

Thu 7/5

11:05-11:43

2 stops29h 38m

£577

LondonLondon

YXU - LHR

YXULHR

London

Wed 27/5

09:30-06:45

2 stops16h 15m

London Heathrow

Wed 3/6

16:40-11:43

2 stops24h 03m

£577

LondonLondon

YXU - LHR

YXULHR

London

Mon 11/5

09:30-06:45

2 stops16h 15m

London Heathrow

Mon 18/5

12:15-21:38

2 stops14h 23m

£577

LondonLondon

YXU - LHR

YXULHR

London

Tue 26/5

09:30-09:00

2 stops18h 30m

London Heathrow

Tue 2/6

08:00-21:38

2 stops18h 38m

£578

LondonLondon

YXU - LHR

YXULHR

London

Mon 8/6

12:20-06:55

2 stops13h 35m

London Heathrow

Fri 12/6

08:00-08:53

2 stops29h 53m

£578

LondonLondon

YXU - LHR

YXULHR

London

Thu 4/6

09:30-06:55

2 stops16h 25m

London Heathrow

Tue 9/6

08:00-21:38

2 stops18h 38m

£578

LondonLondon

YXU - LHR

YXULHR

London

Tue 26/5

09:30-09:00

2 stops18h 30m

London Heathrow

Sat 30/5

08:00-21:38

2 stops18h 38m

£579

LondonLondon

YXU - LHR

YXULHR

London

Fri 29/5

09:30-06:45

2 stops16h 15m

London Heathrow

Fri 5/6

15:20-08:53

2 stops22h 33m

£579

Flights are sorted by cheapest return flights first.

Deals found on 15/4

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

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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 16 April 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.

  • 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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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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