£127+ 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 26/2. 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
16 Jan — 23 Jan1
1 adult
1 adult, Economy, 0 bags

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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 17 December 2025.

Fri 30/107:30YXU - LHR
1 stop24h 20mMultiple Airlines
Fri 6/219:25LHR - YXU
2 stops52h 48mMultiple Airlines
Deal found 16/12£488
Thu 29/117:40YXU - LHR
1 stop9h 50mAir Canada
Thu 5/209:00LHR - YXU
2 stops17h 21mAir Canada
Deal found 15/12£511
Fri 30/117:40YXU - LHR
1 stop9h 50mAir Canada
Fri 6/209:00LHR - YXU
2 stops17h 21mAir Canada
Deal found 16/12£513
Wed 28/105:10YXU - LHR
1 stop20h 20mAir Canada
Wed 4/209:00LHR - YXU
2 stops28h 46mAir Canada
Deal found 14/12£523
Fri 30/109:50YXU - LHR
2 stops15h 30mUnited Airlines
Fri 6/209:10LHR - YXU
2 stops17h 11mUnited Airlines
Deal found 16/12£526
Thu 29/109:50YXU - LHR
2 stops15h 05mUnited Airlines
Thu 5/212:00LHR - YXU
2 stops14h 21mUnited Airlines
Deal found 15/12£527
Mon 19/105:10YXU - LHR
1 stop25h 10mAir Canada
Thu 22/113:45LHR - YXU
2 stops36h 35mAir Canada
Deal found 13/12£529
Wed 28/109:50YXU - STN
3 stops31h 50mMultiple Airlines
Wed 4/208:05STN - YXU
3 stops18h 15mMultiple Airlines
Deal found 14/12£539
Wed 28/117:40YXU - LCY
2 stops14h 15mMultiple Airlines
Wed 4/209:20LCY - YXU
2 stops17h 00mMultiple Airlines
Deal found 14/12£557
Fri 30/107:30YXU - LGW
2 stops26h 20mMultiple Airlines
Fri 6/208:15LGW - YXU
3 stops29h 31mMultiple Airlines
Deal found 16/12£592
Wed 28/109:50YXU - LGW
3 stops23h 20mMultiple Airlines
Wed 4/208:40LGW - YXU
3 stops17h 40mMultiple Airlines
Deal found 14/12£600
Fri 30/109:50YXU - EDI
2 stops17h 05mAir Canada
Fri 6/209:25EDI - YXU
2 stops16h 56mAir Canada
Deal found 16/12£619

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 17 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

LondonLondon

YXU - LHR

YXULHR

London

Fri 30/1

07:30-12:50

1 stop24h 20m

London Heathrow

Fri 6/2

19:25-19:13

2 stops52h 48m

£488

LondonLondon

YXU - LHR

YXULHR

London

Fri 30/1

05:10-09:20

2 stops23h 10m

London Heathrow

Fri 6/2

09:00-21:21

2 stops17h 21m

£511

LondonLondon

YXU - LHR

YXULHR

London

Thu 29/1

17:40-08:30

1 stop9h 50m

London Heathrow

Thu 5/2

09:00-21:21

2 stops17h 21m

£511

LondonLondon

YXU - LHR

YXULHR

London

Wed 28/1

05:10-06:30

1 stop20h 20m

London Heathrow

Wed 4/2

09:00-08:46

2 stops28h 46m

£523

LondonLondon

YXU - LHR

YXULHR

London

Tue 3/2

09:50-06:30

1 stop15h 40m

London Heathrow

Wed 11/2

09:00-21:21

2 stops17h 21m

£523

LondonLondon

YXU - LHR

YXULHR

London

Fri 30/1

17:40-10:50

2 stops12h 10m

London Heathrow

Fri 6/2

12:00-21:21

2 stops14h 21m

£526

LondonLondon

YXU - LHR

YXULHR

London

Wed 28/1

09:50-07:55

2 stops17h 05m

London Heathrow

Wed 4/2

07:25-21:20

2 stops18h 55m

£527

LondonLondon

YXU - LCY

YXULCY

London

Wed 28/1

17:40-12:55

2 stops14h 15m

London City

Wed 4/2

09:20-21:20

2 stops17h 00m

£557

LondonLondon

YXU - LGW

YXULGW

London

Fri 30/1

07:30-14:50

2 stops26h 20m

London Gatwick

Fri 6/2

08:15-08:46

3 stops29h 31m

£592

LondonLondon

YXU - LGW

YXULGW

London

Wed 28/1

09:50-14:10

3 stops23h 20m

London Gatwick

Wed 4/2

08:40-21:20

3 stops17h 40m

£600

Flights are sorted by cheapest return flights first.

Deals found on 14/12

Showing 1-10 of 52 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 £357). Flying from London, Ontario in July will prove the most costly (average of £496). 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

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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 17 December 2025.

  • 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, Cancún are some of the top choices made by users flying from London, Ontario.

  • What is the cheapest premium economy flight from London, Ontario?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from London, Ontario.
    London to Calgary from £920
    London to Toronto Pearson Intl Airport from £1,023

  • 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.

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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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