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Cheap flights from Windsor, Ontario to London Heathrow Airport from £309

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/5. Fares are subject to change and may not be available on all flights or dates of travel.
YQG — LHR
9 May — 16 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Windsor to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Windsor to Heathrow
Explore the most affordable flight options available from Windsor to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 April 2026.

Fri 22/516:05
YQG
-
LHR
1 stop9h 30m
Air Canada
Fri 29/506:00
LHR
-
YQG
2 stops18h 09m
Air Canada
Deal found 7/4£633
Fri 17/419:45
YQG
-
LHR
1 stop11h 05m
Multiple Airlines
Thu 30/418:40
LHR
-
YQG
2 stops29h 29m
Multiple Airlines
Deal found 6/4£642
Mon 11/516:05
YQG
-
LHR
1 stop14h 45m
Air Canada
Fri 15/506:00
LHR
-
YQG
2 stops32h 24m
Air Canada
Deal found 5/4£645
Wed 15/409:45
YQG
-
LHR
2 stops17h 50m
Multiple Airlines
Wed 29/409:30
LHR
-
YQG
2 stops14h 39m
Multiple Airlines
Deal found 6/4£647
Fri 15/519:45
YQG
-
LHR
1 stop29h 50m
Multiple Airlines
Sun 31/508:30
LHR
-
YQG
1 stop11h 54m
Multiple Airlines
Deal found 6/4£650
Tue 9/610:05
YQG
-
LHR
1 stop15h 30m
Air Canada
Mon 29/612:05
LHR
-
YQG
1 stop12h 02m
Air Canada
Deal found 5/4£657

Find flight deals from Windsor to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Windsor (YQG) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 April 2026.

Round-trip from

£633

One-way from

£309

Popular in

December

Cheapest in

March

Average price

£647
Air Canada
  • Air Canada
  • 22/5-29/5
  • 3 total stops
  • 27h 39m total
  • Windsor to London
Search Deals
22/5
  • 22/5
  • 3 total stops
  • 22h 50m total
  • Windsor to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£36 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Windsor to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 April 2026.
Use the filters below to find and compare flights from Windsor to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Fri 22/5

10:05-06:30

2 stops15h 25m

London Heathrow

Fri 29/5

08:40-19:09

2 stops15h 29m

£636

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Mon 11/5

10:05-06:35

1 stop15h 30m

London Heathrow

Fri 15/5

06:00-09:24

2 stops32h 24m

£646
Fastest return journey

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Wed 2/9

16:05-06:35

1 stop9h 30m

London Heathrow

Sun 6/9

09:30-19:07

2 stops14h 37m

£660

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Mon 27/4

19:45-21:00

2 stops20h 15m

London Heathrow

Wed 6/5

20:05-19:09

2 stops28h 04m

£674

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Fri 1/5

10:05-08:35

1 stop17h 30m

London Heathrow

Fri 8/5

08:40-19:09

2 stops15h 29m

£677

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Sun 31/5

10:05-21:00

2 stops29h 55m

London Heathrow

Thu 4/6

17:15-09:24

2 stops45h 09m

£677

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Mon 20/4

19:45-11:50

1 stop11h 05m

London Heathrow

Wed 29/4

14:05-09:04

2 stops23h 59m

£687

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Thu 11/6

16:05-06:35

1 stop9h 30m

London Heathrow

Tue 23/6

09:30-19:07

2 stops14h 37m

£687
Cheapest one-way

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Fri 22/5

16:30-20:20

3 stops22h 50m

£309

WindsorLondon

YQG - LHR

YQGLHR

Windsor

Sun 24/5

16:30-13:30

3 stops40h 00m

£388

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Windsor to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Windsor 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.

Cheapflights Insights

Everything you need to know about your flight from Windsor to London Heathrow Airport

What is the cheapest month to book a flight from Windsor, Ontario to London Heathrow Airport?

Currently, December is the cheapest month in which you can book a flight from Windsor, Ontario to London Heathrow Airport (average of £526). Flying from Windsor, Ontario to London Heathrow Airport in September is currently the most expensive (average of £671). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Windsor, Ontario to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 9 April 2026.
See what other customers who have flown with Air Canada from Windsor to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,907 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Food

6.3

Overall

7.1

Crew

7.8

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,907 reviews
Air Canada
7.1
Good
10,907 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Food

6.3

Overall

7.1

Crew

7.8

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

Find useful and relevant information for your journey from Windsor to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Windsor to London Heathrow?

    Located just 5.0 mi from the city center, Windsor is the airport most travelers will use when flying to London Heathrow from Windsor. Booking flights from Windsor (YQG) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 1 airline.

  • How long is the flight from Windsor, Ontario to London Heathrow Airport?

    Airlines like Air Canada fly from Windsor, Ontario to London Heathrow Airport in about 15h 25m. The time it takes to get you to your destination can typically vary by up to . The distance between Windsor, Ontario and London Heathrow Airport is about 3736 mi.

  • What is the cheapest airline to fly from Windsor, Ontario to London Heathrow Airport round-trip?

    Currently priced at £612, Air Canada will fly you from Windsor, Ontario to London Heathrow Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Air Canada is 11% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Windsor to Heathrow that include hotel bookings?

    Yes. In addition to deals on Windsor to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Windsor to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Windsor to Heathrow.

  • Can I find deals for business class flights from Windsor to Heathrow?

    Yes. Cheapflights offers flight deals from Windsor to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Windsor, Ontario to London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from Windsor, Ontario to London Heathrow Airport (average of £526). Flying from Windsor, Ontario to London Heathrow Airport in September is currently the most expensive (average of £671). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Gatwick
Luton
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Chelmsford
Ipswich
Southend-on-Sea

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Windsor to Heathrow

Discover the top airline that operate flights from Windsor to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£612Average£897FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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 Windsor to Heathrow?

Cheapflights helps you search for flights from Windsor to Heathrow 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 Windsor to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Windsor to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Windsor to Heathrow with no change fees?

Yes, we can. To see specific flights from Windsor to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Windsor to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Windsor to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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