£168+ 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 23/5. 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
11 Apr — 18 Apr1
1 adult
1 adult, Economy, 0 bags

Find flights from London

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Cheapest flights from London
Explore the most affordable flight options available from London. Find the lowest fares based on data from user searches, with prices last updated on 12 March 2026.

Tue 21/405:10
YXU
-
LHR
2 stops20h 35m
United Airlines
Tue 28/416:40
LHR
-
YXU
2 stops21h 04m
United Airlines
Deal found 7/3£562
Sat 2/512:20
YXU
-
LHR
2 stops15h 10m
United Airlines
Wed 6/512:00
LHR
-
YXU
2 stops14h 38m
United Airlines
Deal found 6/3£562
Thu 23/405:10
YXU
-
LHR
2 stops20h 35m
Lufthansa
Thu 30/411:05
LHR
-
YXU
2 stops26h 48m
Lufthansa
Deal found 9/3£573
Fri 24/417:40
YXU
-
LHR
2 stops22h 20m
Air Canada
Fri 1/506:00
LHR
-
YXU
2 stops20h 38m
Air Canada
Deal found 10/3£589
Sat 25/405:10
YXU
-
LHR
2 stops25h 45m
United Airlines
Sat 2/511:05
LHR
-
YXU
2 stops15h 33m
United Airlines
Deal found 11/3£591
Tue 7/417:40
YXU
-
LHR
2 stops12h 00m
United Airlines
Tue 14/411:05
LHR
-
YXU
2 stops15h 14m
United Airlines
Deal found 10/3£591
Thu 23/409:25
YXU
-
LHR
2 stops16h 30m
United Airlines
Thu 30/414:10
LHR
-
YXU
2 stops23h 43m
United Airlines
Deal found 9/3£592
Tue 21/409:25
YXU
-
LHR
2 stops31h 00m
Multiple Airlines
Tue 28/408:45
LHR
-
YXU
2 stops17h 34m
Multiple Airlines
Deal found 7/3£597
Thu 23/417:40
YXU
-
LHR
1 stop9h 55m
Air Canada
Thu 30/408:45
LHR
-
YXU
2 stops17h 34m
Air Canada
Deal found 8/3£603
Tue 21/409:25
YXU
-
LHR
1 stop16h 10m
Air Canada
Tue 28/406:00
LHR
-
YXU
2 stops16h 04m
Air Canada
Deal found 7/3£605
Wed 8/409:25
YXU
-
LHR
2 stops20h 15m
Lufthansa
Wed 15/414:10
LHR
-
YXU
2 stops23h 34m
Lufthansa
Deal found 11/3£606
Mon 11/509:30
YXU
-
EDI
2 stops20h 05m
United Airlines
Fri 15/509:40
EDI
-
YXU
2 stops16h 58m
United Airlines
Deal found 8/3£637

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 12 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 - LHR

YXULHR

London

Tue 21/4

05:10-06:45

2 stops20h 35m

London Heathrow

Tue 28/4

16:40-08:44

2 stops21h 04m

£562

LondonLondon

YXU - LHR

YXULHR

London

Sat 2/5

12:20-08:30

2 stops15h 10m

London Heathrow

Wed 6/5

12:00-21:38

2 stops14h 38m

£562

LondonLondon

YXU - LHR

YXULHR

London

Mon 6/4

17:40-06:45

2 stops32h 05m

London Heathrow

Mon 13/4

16:40-17:04

2 stops29h 24m

£565

LondonLondon

YXU - LHR

YXULHR

London

Wed 22/4

09:25-06:45

2 stops16h 20m

London Heathrow

Wed 29/4

08:00-21:19

2 stops18h 19m

£565

LondonLondon

YXU - LHR

YXULHR

London

Wed 13/5

09:30-07:15

2 stops16h 45m

London Heathrow

Mon 18/5

10:25-21:38

2 stops16h 13m

£565

LondonLondon

YXU - LHR

YXULHR

London

Sun 5/4

17:40-10:40

2 stops12h 00m

London Heathrow

Sun 12/4

14:10-08:44

2 stops23h 34m

£565

LondonLondon

YXU - LHR

YXULHR

London

Sat 25/4

05:10-11:55

2 stops25h 45m

London Heathrow

Sat 2/5

11:05-21:38

2 stops15h 33m

£591

LondonEdinburgh

YXU - EDI

YXUEDI

London

Mon 11/5

05:40-10:35

2 stops23h 55m

Edinburgh Turnhouse

Fri 15/5

09:40-21:38

2 stops16h 58m

£634

LondonEdinburgh

YXU - EDI

YXUEDI

London

Mon 11/5

09:30-10:35

2 stops20h 05m

Edinburgh Turnhouse

Fri 15/5

09:40-21:38

2 stops16h 58m

£637

LondonLondon

YXU - LGW

YXULGW

London

Tue 21/4

09:25-06:20

2 stops15h 55m

London Gatwick

Tue 28/4

08:50-05:20

2 stops25h 30m

£667

Flights are sorted by cheapest return flights first.

Deals found on 11/3

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 £362). Flying from London, Ontario in July will prove the most costly (average of £492). 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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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 12 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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