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Cheap flights from Ontario to London, ON from C$ 203

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — YXU
17 Mar — 24 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to London

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to London
Explore the most affordable flight options available from Ontario to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 February 2026.

Mon 1/610:00 a.m.
YYZ
-
YXU
1 stop27h 45m
WestJet
Sun 7/62:20 p.m.
YXU
-
YYZ
1 stop5h 35m
WestJet
Deal found 13/2C$ 373
Mon 16/37:30 p.m.
YUL
-
YXU
1 stop11h 05m
WestJet
Mon 23/38:10 p.m.
YXU
-
YUL
1 stop10h 55m
WestJet
Deal found 14/2C$ 448
Sat 9/58:00 p.m.
YYZ
-
YXU
1 stop9h 20m
WestJet
Sat 16/56:10 a.m.
YXU
-
YYZ
1 stop24h 45m
WestJet
Deal found 12/2C$ 466
Sat 2/56:30 p.m.
YYZ
-
YXU
1 stop10h 50m
WestJet
Sat 9/56:10 a.m.
YXU
-
YYZ
2 stops13h 25m
WestJet
Deal found 11/2C$ 467
Sun 5/46:30 p.m.
YYZ
-
YXU
1 stop12h 05m
WestJet
Mon 13/48:10 p.m.
YXU
-
YYZ
1 stop21h 18m
WestJet
Deal found 11/2C$ 470
Thu 5/35:00 p.m.
YYZ
-
YXU
1 stop13h 35m
WestJet
Wed 25/38:10 p.m.
YXU
-
YYZ
1 stop27h 01m
WestJet
Deal found 11/2C$ 479
Thu 5/34:15 p.m.
YYZ
-
YXU
Nonstop0h 50m
Air Canada
Wed 25/39:40 a.m.
YXU
-
YYZ
Nonstop0h 50m
Air Canada
Deal found 11/2C$ 483
Sat 14/38:30 p.m.
YYZ
-
YXU
Nonstop0h 51m
Air Canada
Sat 21/35:10 a.m.
YXU
-
YYZ
Nonstop0h 54m
Air Canada
Deal found 14/2C$ 485
Fri 27/27:55 a.m.
YYZ
-
YXU
Nonstop0h 51m
Multiple Airlines
Sun 1/38:10 p.m.
YXU
-
YYZ
1 stop10h 03m
Multiple Airlines
Deal found 13/2C$ 489
Wed 25/37:30 p.m.
YUL
-
YXU
1 stop11h 05m
WestJet
Tue 31/38:10 p.m.
YXU
-
YUL
1 stop10h 55m
WestJet
Deal found 11/2C$ 489
Sun 5/45:10 p.m.
YYZ
-
YXU
1 stop13h 25m
Multiple Airlines
Mon 13/48:10 p.m.
YXU
-
YYZ
2 stops19h 40m
Multiple Airlines
Deal found 11/2C$ 497
Fri 20/38:30 p.m.
YYZ
-
YXU
Nonstop0h 51m
Air Canada
Sun 12/49:25 a.m.
YXU
-
YYZ
Nonstop0h 48m
Air Canada
Deal found 12/2C$ 498

Find flight deals from Ontario to London

Keep the following information in mind while searching for Ontario to London flight deals. Data was last updated 15 February 2026.

Round-trip from

C$ 373

One-way from

C$ 203

Popular in

February

Cheapest in

January

Average price

C$ 859

Good round-trip deal

C$ 510 or less
WestJet
  • WestJet
  • 1/6-7/6
  • 2 total stops
  • 33h 20m total
  • Ontario to London
Search Deals
WestJet
  • WestJet
  • 20/4
  • 1 total stop
  • 12h 05m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Ontario to London.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to London 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 629,999 searches. Data last updated 15 February 2026.
Use the filters below to find and compare flights from Ontario to London that are best for you.

Fly from

Ontario

Fly to

London

Route

Depart

Return

Price

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Mon 1/6

10:00 a.m.-1:45 p.m.

1 stop27h 45m

London

Sun 7/6

2:20 p.m.-7:55 p.m.

1 stop5h 35m

C$ 373

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 16/3

7:30 p.m.-6:35 a.m.

1 stop11h 05m

London

Mon 23/3

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 448

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sat 9/5

8:00 p.m.-5:20 a.m.

1 stop9h 20m

London

Sat 16/5

6:10 a.m.-6:55 a.m.

1 stop24h 45m

C$ 466

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sun 5/4

6:30 p.m.-6:35 a.m.

1 stop12h 05m

London

Mon 13/4

8:10 p.m.-5:28 p.m.

1 stop21h 18m

C$ 470

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sat 2/5

8:00 p.m.-5:20 a.m.

1 stop9h 20m

London

Sat 9/5

6:10 a.m.-3:30 p.m.

1 stop9h 20m

C$ 474

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sat 2/5

10:55 a.m.-11:43 a.m.

Nonstop0h 48m

London

Sat 9/5

9:30 a.m.-10:18 a.m.

Nonstop0h 48m

C$ 483

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Thu 12/3

7:55 a.m.-8:46 a.m.

Nonstop0h 51m

London

Thu 19/3

5:10 a.m.-6:04 a.m.

Nonstop0h 54m

C$ 483

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

7:30 p.m.-6:35 a.m.

1 stop11h 05m

London

Tue 31/3

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 489

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sun 5/4

5:10 p.m.-6:35 a.m.

1 stop13h 25m

London

Mon 13/4

8:10 p.m.-3:50 p.m.

2 stops19h 40m

C$ 497

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Fri 20/3

8:30 p.m.-9:21 p.m.

Nonstop0h 51m

London

Tue 24/3

9:40 a.m.-10:30 a.m.

Nonstop0h 50m

C$ 498

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/2

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to London

Have a flexible travel schedule? Discover the best time to fly to London from Ontario with our price prediction graph.
Estimated round-trip 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 Ontario to London

What is the cheapest month to book a flight from Region of Ontario to London, Ontario?

Currently, May is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 84). Flying from Region of Ontario to London, Ontario in December is currently the most expensive (average of C$ 158). 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.

What is the cheapest time of day to fly from ON to YXU?

Find hourly flight availability from Ontario to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 February 2026.

One of the essential ways to save on airfare from Region of Ontario to London, Ontario is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 10% on airfare.

What is the cheapest day to fly from Region of Ontario to London, Ontario?

Use this chart to determine the cheapest time to fly round-trip from Ontario to London. Price data was last updated on 7 February 2026.

Travelers seeking maximum savings on their Region of Ontario to London, Ontario flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Region of Ontario to London, Ontario

Explore weekly flight availability from Ontario to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 February 2026.

The most flights from CAON to YXU are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

How much does it cost to fly round-trip from Region of Ontario to London, Ontario?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 15 February 2026.
Check out reviews from past customers who have flown with WestJet and Air Canada from Ontario to London to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
3,262 reviews
Check prices

Boarding

7.4

Overall

7.2

Comfort

7.0

Food

6.2

Entertainment

6.1

Crew

7.9

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
3,262 reviews
WestJet
7.2
Good
3,262 reviews
Check prices

Boarding

7.4

Overall

7.2

Comfort

7.0

Food

6.2

Entertainment

6.1

Crew

7.9

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
Air Canada
7.1
Good
10,718 reviews
WestJet
7.2
Good
3,262 reviews
Check prices

Boarding

7.4

Overall

7.2

Comfort

7.0

Food

6.2

Entertainment

6.1

Crew

7.9

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Related info for your journey

Find useful and relevant information for your journey from Ontario to London. 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 into for flights to London from Ontario?

    London (YXU), located 8.6 km from the city centre, is the airport you fly into when you book flights from Ontario to London.

  • How long is the flight from Region of Ontario to London, Ontario?

    Airlines like WestJet and Air Canada fly from Region of Ontario to London, Ontario in about 3h. The time it takes to get you to your destination can typically vary by up to 24h 45m. Region of Ontario and London, Ontario are separated by a distance of 505 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Region of Ontario to London, Ontario?

    Most travellers choose Toronto Pearson Intl - London, Ottawa - London or Montreal Pierre Elliott Trudeau Intl - London when deciding on the best route from Region of Ontario to London, Ontario.

  • What are the most reliable airlines from Region of Ontario to London, Ontario?

    Consider Emirates (49%), Avianca (49%) or United Airlines (43%) when booking your flight. These represent the most reliable airlines when flying from Region of Ontario to London, Ontario.

  • What are the cheapest flights from Region of Ontario to London, Ontario?

    Looking at all options, your cheapest flight can be booked for C$ 440. While the most popular route (Toronto Pearson Intl - London) can be booked for C$ 483 on average, our data indicates C$ 617 when flying from Region of Ontario to London, Ontario.

  • Can I find deals for flights from Ontario to London that include hotel bookings?

    Yes. In addition to deals on Ontario to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to London?

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

  • Can I find deals for business class flights from Ontario to London?

    Yes. Cheapflights offers flight deals from Ontario to London 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 Region of Ontario to London, Ontario?

    Currently, May is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 84). Flying from Region of Ontario to London, Ontario in December is currently the most expensive (average of C$ 158). 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?

Book flights to London if you plan to visit one of these locations
Port Stanley
Grand Bend

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Alternative routes for Ontario to London

See prices for flight routes from nearby airports that may be better suited for you.
Vancouver Intl to Pearson Intl flights
Vancouver Intl to Hamilton flights
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Calgary to Hamilton flights
Calgary to Region of Waterloo Intl flights
Abbotsford to Hamilton flights
Abbotsford to Region of Waterloo Intl flights
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Pierre Elliott Trudeau Intl to Toronto Island flights
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Halifax to Pierre Elliott Trudeau Intl flights
Edmonton to Toronto Island flights
Halifax to Hamilton flights
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Winnipeg to Toronto Island flights
Vancouver Intl to Ottawa flights
Edmonton to Pierre Elliott Trudeau Intl flights
Calgary to Pierre Elliott Trudeau Intl flights
Victoria to Pearson Intl flights
Kelowna to Pearson Intl flights
Regina to Pearson Intl flights
St. John's to Pearson Intl flights
Halifax to Ottawa flights
Québec City to Pearson Intl flights
Abbotsford to Pierre Elliott Trudeau Intl flights
Toronto Island to Ottawa flights
Pearson Intl to Ottawa flights
Pearson Intl to Thunder Bay flights
Calgary to Ottawa flights
Winnipeg to Pierre Elliott Trudeau Intl flights
Ottawa to Pearson Intl flights
Fredericton to Toronto Island flights
Moncton to Toronto Island flights
Winnipeg to Ottawa flights
Moncton to Pearson Intl flights
Ottawa to Toronto Island flights
Thunder Bay to Pearson Intl flights
Thunder Bay to Toronto Island flights

Top 2 airlines flying from Ontario to London

Discover the top 2 airlines that operate flights from Ontario to London. 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 629,999 searches. Data last updated 15 February 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 324AverageC$ 373FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 437AverageC$ 901FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to London?

Cheapflights helps you search for flights from Ontario to 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 Ontario to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to London with no change fees?

Yes, we can. To see specific flights from Ontario to London 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 Ontario to London become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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