£122+ 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 12/2. 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
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

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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 30 December 2025.

Mon 9/209:25YXU - LHR
2 stops30h 10mAir Canada
Mon 16/209:00LHR - YXU
2 stops17h 21mAir Canada
Deal found 28/12£501
Tue 10/205:10YXU - LHR
1 stop22h 20mAir Canada
Tue 17/209:00LHR - YXU
2 stops17h 21mAir Canada
Deal found 28/12£524
Thu 12/205:10YXU - LHR
2 stops21h 45mUnited Airlines
Thu 19/207:40LHR - YXU
2 stops30h 06mUnited Airlines
Deal found 29/12£527
Mon 23/209:25YXU - LHR
1 stop18h 05mAir Canada
Fri 27/209:00LHR - YXU
2 stops28h 46mAir Canada
Deal found 27/12£556
Wed 6/518:10YXU - LHR
1 stop10h 25mAir Canada
Sun 24/514:10LHR - YXU
1 stop12h 28mAir Canada
Deal found 28/12£570
Tue 10/209:25YXU - EDI
2 stops24h 20mMultiple Airlines
Tue 17/215:20EDI - YXU
3 stops30h 45mMultiple Airlines
Deal found 29/12£604
Thu 12/209:25YXU - LGW
3 stops26h 15mMultiple Airlines
Thu 19/207:00LGW - YXU
2 stops15h 05mMultiple Airlines
Deal found 29/12£637
Mon 16/205:10YXU - EDI
2 stops25h 50mMultiple Airlines
Wed 11/311:30EDI - YXU
2 stops25h 16mMultiple Airlines
Deal found 29/12£640
Fri 22/506:00YXU - MAN
2 stops23h 25mAir Canada
Tue 26/506:05MAN - YXU
2 stops31h 48mAir Canada
Deal found 30/12£658
Tue 10/209:25YXU - EDI
2 stops17h 30mAir Canada
Tue 17/209:25EDI - YXU
2 stops16h 56mAir Canada
Deal found 29/12£659
Sun 5/405:10YXU - EDI
2 stops24h 25mUnited Airlines
Thu 9/412:30EDI - YXU
2 stops13h 48mUnited Airlines
Deal found 28/12£674
Thu 12/209:25YXU - GLA
2 stops21h 40mMultiple Airlines
Thu 19/212:50GLA - YXU
2 stops24h 56mMultiple Airlines
Deal found 29/12£682

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 30 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

Mon 9/2

17:40-08:30

1 stop9h 50m

London Heathrow

Mon 16/2

09:00-21:21

2 stops17h 21m

£504

LondonLondon

YXU - LHR

YXULHR

London

Tue 10/2

05:10-08:30

1 stop22h 20m

London Heathrow

Tue 17/2

09:00-21:21

2 stops17h 21m

£524

LondonLondon

YXU - LHR

YXULHR

London

Fri 13/2

09:25-10:50

2 stops20h 25m

London Heathrow

Fri 20/2

07:25-17:05

2 stops38h 40m

£526

LondonLondon

YXU - LHR

YXULHR

London

Mon 23/2

09:25-06:20

2 stops15h 55m

London Heathrow

Fri 27/2

07:25-08:46

2 stops30h 21m

£526

LondonLondon

YXU - LHR

YXULHR

London

Thu 12/2

05:10-07:55

2 stops21h 45m

London Heathrow

Thu 19/2

07:40-08:46

2 stops30h 06m

£527

LondonLondon

YXU - LHR

YXULHR

London

Wed 11/2

09:25-10:50

2 stops20h 25m

London Heathrow

Wed 18/2

09:10-21:21

2 stops17h 11m

£527

LondonEdinburgh

YXU - EDI

YXUEDI

London

Tue 10/2

09:25-14:45

2 stops24h 20m

Edinburgh Turnhouse

Tue 17/2

15:20-17:05

3 stops30h 45m

£604

LondonLondon

YXU - LGW

YXULGW

London

Thu 12/2

09:25-16:40

3 stops26h 15m

London Gatwick

Thu 19/2

07:00-17:05

2 stops15h 05m

£637

LondonManchester

YXU - MAN

YXUMAN

London

Fri 22/5

12:20-10:25

2 stops17h 05m

Manchester

Tue 26/5

06:05-08:53

2 stops31h 48m

£659

LondonEdinburgh

YXU - EDI

YXUEDI

London

Sun 5/4

05:10-10:35

2 stops24h 25m

Edinburgh Turnhouse

Thu 9/4

12:30-21:18

2 stops13h 48m

£674

Flights are sorted by cheapest return flights first.

Deals found on 28/12

Showing 1-10 of 47 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 £356). Flying from London, Ontario in July will prove the most costly (average of £493). 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 30 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 £914
    London to Toronto Pearson Intl Airport from £1,016

  • 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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