£144+ 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 18/6. 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
23 Mar — 30 Mar1
1 adult
1 adult, Economy, 0 bags

What to know about flights from London

Discover essential information about flights departing from London, including flight schedules, destinations, airlines operating at the London airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 21 February 2026.

Good round-trip deal

£482 or less
Price to beat on a round-trip flight from London.
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Find flights from London

Enter your travel dates to find the best prices.

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 21 February 2026.

Tue 26/512:20
YXU
-
LHR
2 stops17h 05m
United Airlines
Sat 30/508:00
LHR
-
YXU
2 stops18h 38m
United Airlines
Deal found 21/2£532
Mon 6/409:25
YXU
-
LHR
2 stops18h 05m
United Airlines
Mon 13/416:40
LHR
-
YXU
2 stops29h 23m
United Airlines
Deal found 20/2£533
Sat 4/405:10
YXU
-
LHR
2 stops21h 05m
United Airlines
Sat 11/412:15
LHR
-
YXU
2 stops14h 03m
United Airlines
Deal found 18/2£549
Tue 7/417:40
YXU
-
LHR
2 stops12h 00m
Lufthansa
Tue 14/412:00
LHR
-
YXU
2 stops14h 18m
Lufthansa
Deal found 21/2£552
Mon 6/417:40
YXU
-
LHR
1 stop9h 55m
Lufthansa
Mon 13/407:25
LHR
-
YXU
2 stops14h 38m
Lufthansa
Deal found 20/2£562
Tue 17/309:40
YXU
-
LHR
2 stops16h 40m
United Airlines
Tue 24/309:10
LHR
-
YXU
2 stops16h 11m
United Airlines
Deal found 17/2£565
Fri 3/409:25
YXU
-
LHR
2 stops20h 15m
Lufthansa
Fri 10/408:00
LHR
-
YXU
2 stops18h 18m
Lufthansa
Deal found 17/2£569
Tue 26/518:10
YXU
-
LHR
1 stop12h 40m
Multiple Airlines
Sat 30/507:25
LHR
-
YXU
2 stops15h 08m
Multiple Airlines
Deal found 21/2£581
Tue 7/417:40
YXU
-
LHR
1 stop9h 55m
Multiple Airlines
Tue 14/410:50
LHR
-
YXU
2 stops15h 28m
Multiple Airlines
Deal found 21/2£586
Tue 26/512:20
YXU
-
LHR
1 stop13h 15m
Air Canada
Sat 30/508:30
LHR
-
YXU
1 stop14h 03m
Air Canada
Deal found 21/2£590
Wed 17/612:20
YXU
-
LHR
2 stops15h 15m
Air Canada
Fri 26/606:00
LHR
-
YXU
2 stops20h 37m
Air Canada
Deal found 19/2£592
Tue 7/409:25
YXU
-
EDI
1 stop16h 55m
Multiple Airlines
Tue 14/417:10
EDI
-
YXU
2 stops28h 53m
Multiple Airlines
Deal found 21/2£633

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 21 February 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Gatwick

Route

Depart

Return

Price

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

£532

LondonLondon

YXU - LHR

YXULHR

London

Mon 6/4

09:25-08:30

2 stops18h 05m

London Heathrow

Mon 13/4

16:40-17:03

2 stops29h 23m

£533

LondonLondon

YXU - LHR

YXULHR

London

Sat 4/4

05:10-07:15

2 stops21h 05m

London Heathrow

Sat 11/4

12:15-21:18

2 stops14h 03m

£549

LondonLondon

YXU - LHR

YXULHR

London

Tue 17/3

09:40-06:20

2 stops16h 40m

London Heathrow

Tue 24/3

09:10-21:21

2 stops16h 11m

£565

LondonLondon

YXU - LHR

YXULHR

London

Fri 3/4

09:25-10:40

2 stops20h 15m

London Heathrow

Fri 10/4

08:00-21:18

2 stops18h 18m

£569

LondonLondon

YXU - LHR

YXULHR

London

Tue 26/5

18:10-11:50

1 stop12h 40m

London Heathrow

Sat 30/5

07:25-17:33

2 stops15h 08m

£581

LondonLondon

YXU - LHR

YXULHR

London

Tue 7/4

17:40-08:35

1 stop9h 55m

London Heathrow

Tue 14/4

10:50-21:18

2 stops15h 28m

£586

LondonLondon

YXU - LHR

YXULHR

London

Tue 26/5

12:20-06:35

1 stop13h 15m

London Heathrow

Sat 30/5

08:30-17:33

1 stop14h 03m

£590

LondonLondon

YXU - LHR

YXULHR

London

Wed 17/6

12:20-08:35

2 stops15h 15m

London Heathrow

Fri 26/6

06:00-21:37

2 stops20h 37m

£592

LondonLondon

YXU - LHR

YXULHR

London

Mon 6/4

17:40-09:35

1 stop10h 55m

London Heathrow

Mon 13/4

06:00-17:03

2 stops16h 03m

£592

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 60 results
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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, March is the cheapest month in which you can book a flight from London, Ontario (average of £326). Flying from London, Ontario in July will prove the most costly (average of £442). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from London, Ontario?

If you’re flying from London, Ontario, these routes are more frequently taken by airlines Toronto (156 flights per day), Calgary (6 flights per day) and Cancún (1 flights per day).

Toronto
Toronto
From £388

What is the cheapest place to fly to from London, Ontario?

The cheapest city to fly to from London, Ontario is Toronto, with prices starting at £388. Explore other affordable destinations below.

Toronto
Toronto
From £388

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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 21 February 2026.

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

    This month, the top selected destinations from London, Ontario are Calgary, Cancún, Vancouver Intl Airport. 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 flight from London, Ontario to anywhere?

    Users have flown out of London, Ontario for as low as £388 to Toronto Pearson Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £486 to fly 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 March; 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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