£173+ 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 18/11. 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 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

Fri 20/217:40YXU - LHR
2 stops21h 55mAir Canada
Tue 24/213:45LHR - YXU
2 stops36h 36mAir Canada
Deal found 16/10£485
Fri 20/209:25YXU - LHR
1 stop16h 05mLufthansa
Tue 24/211:10LHR - YXU
1 stop15h 11mLufthansa
Deal found 14/10£498
Wed 12/1109:25YXU - LHR
2 stops16h 45mMultiple Airlines
Wed 19/1107:40LHR - YXU
2 stops14h 25mMultiple Airlines
Deal found 15/10£503
Mon 10/1105:15YXU - LHR
1 stop25h 05mAir Canada
Mon 17/1109:00LHR - YXU
2 stops28h 46mAir Canada
Deal found 15/10£509
Mon 10/1105:15YXU - LHR
1 stop22h 15mMultiple Airlines
Mon 17/1111:10LHR - YXU
1 stop10h 55mMultiple Airlines
Deal found 15/10£515
Sun 30/1117:40YXU - STN
2 stops21h 25mMultiple Airlines
Sun 7/1206:30STN - YXU
3 stops19h 51mMultiple Airlines
Deal found 16/10£518
Sun 23/1117:40YXU - LHR
1 stop31h 50mAir Canada
Thu 27/1113:45LHR - YXU
2 stops36h 36mAir Canada
Deal found 15/10£520
Mon 1/1209:25YXU - LHR
1 stop18h 05mMultiple Airlines
Mon 8/1206:35LHR - YXU
2 stops19h 46mMultiple Airlines
Deal found 17/10£524
Mon 1/1209:25YXU - LHR
1 stop16h 05mAir Canada
Mon 8/1213:00LHR - YXU
1 stop13h 21mAir Canada
Deal found 17/10£533
Sun 30/1105:15YXU - LHR
2 stops34h 20mAir Canada
Sun 7/1206:00LHR - YXU
2 stops20h 21mAir Canada
Deal found 16/10£536
Fri 20/217:40YXU - LCY
2 stops42h 00mLufthansa
Tue 24/218:15LCY - YXU
2 stops51h 50mLufthansa
Deal found 16/10£570
Mon 1/1217:40YXU - LCY
2 stops14h 10mMultiple Airlines
Mon 8/1209:50LCY - YXU
2 stops16h 31mMultiple Airlines
Deal found 17/10£591

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 October 2025. 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

Fri 20/2

09:25-20:35

2 stops30h 10m

London Heathrow

Tue 24/2

13:45-21:21

2 stops36h 36m

£485

LondonLondon

YXU - LHR

YXULHR

London

Fri 20/2

09:25-06:30

1 stop16h 05m

London Heathrow

Tue 24/2

11:10-21:21

1 stop15h 11m

£498

LondonLondon

YXU - LHR

YXULHR

London

Wed 12/11

09:25-06:30

1 stop16h 05m

London Heathrow

Wed 19/11

06:35-17:05

2 stops15h 30m

£505

LondonLondon

YXU - LHR

YXULHR

London

Mon 10/11

05:15-11:20

1 stop25h 05m

London Heathrow

Mon 17/11

09:00-08:46

2 stops28h 46m

£509

LondonLondon

YXU - LHR

YXULHR

London

Mon 10/11

05:15-08:30

1 stop22h 15m

London Heathrow

Mon 17/11

11:10-17:05

1 stop10h 55m

£515

LondonLondon

YXU - STN

YXUSTN

London

Sun 30/11

17:40-20:05

2 stops21h 25m

London Stansted

Sun 7/12

06:30-21:21

3 stops19h 51m

£518

LondonLondon

YXU - LHR

YXULHR

London

Sun 23/11

17:40-06:30

1 stop31h 50m

London Heathrow

Thu 27/11

13:45-21:21

2 stops36h 36m

£520

LondonLondon

YXU - LHR

YXULHR

London

Mon 1/12

09:25-08:30

1 stop18h 05m

London Heathrow

Mon 8/12

06:35-21:21

2 stops19h 46m

£524

LondonLondon

YXU - LCY

YXULCY

London

Fri 20/2

17:40-16:40

2 stops42h 00m

London City

Tue 24/2

18:15-17:05

2 stops51h 50m

£570

LondonLondon

YXU - LCY

YXULCY

London

Mon 1/12

17:40-12:50

2 stops14h 10m

London City

Mon 8/12

09:50-21:21

2 stops16h 31m

£591

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 45 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 £305). Flying from London, Ontario in July will prove the most costly (average of £444). 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 17 October 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, Edmonton. 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 £918
    London to Toronto Pearson Intl Airport from £1,021

  • What is the cheapest first class flight from London, Ontario?

    If you’re looking for a cheap first-class flight from London, Ontario, consider Toronto. Prices start at £1,668 so you can fly first-class even on a budget.

  • 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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