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Cheap flights from Ontario to London, ON from C$ 255

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — YXU
3 May — 10 May1
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 3 April 2026.

Fri 17/47:55 a.m.
YYZ
-
YXU
Nonstop0h 49m
Air Canada
Sun 19/45:10 a.m.
YXU
-
YYZ
Nonstop0h 53m
Air Canada
Deal found 30/3C$ 495
Sun 26/48:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Sun 3/56:10 a.m.
YXU
-
YUL
1 stop10h 20m
WestJet
Deal found 29/3C$ 499
Sat 2/510:55 a.m.
YYZ
-
YXU
Nonstop0h 48m
Air Canada
Sat 16/56:10 p.m.
YXU
-
YYZ
Nonstop0h 48m
Air Canada
Deal found 3/4C$ 509
Tue 28/47:55 a.m.
YYZ
-
YXU
Nonstop0h 49m
Air Canada
Tue 5/55:10 a.m.
YXU
-
YYZ
Nonstop0h 48m
Air Canada
Deal found 31/3C$ 515
Tue 28/48:30 p.m.
YYZ
-
YXU
Nonstop0h 49m
Air Canada
Sat 2/59:30 a.m.
YXU
-
YYZ
Nonstop0h 48m
Air Canada
Deal found 30/3C$ 516
Tue 28/48:30 p.m.
YYZ
-
YXU
Nonstop0h 49m
Air Canada
Thu 30/45:40 p.m.
YXU
-
YYZ
Nonstop0h 49m
Air Canada
Deal found 30/3C$ 522
Fri 8/58:50 p.m.
YYZ
-
YXU
Nonstop0h 48m
Air Canada
Mon 11/55:10 a.m.
YXU
-
YYZ
Nonstop0h 48m
Air Canada
Deal found 31/3C$ 536
Fri 17/47:55 a.m.
YYZ
-
YXU
Nonstop0h 49m
Air Canada
Thu 23/45:40 p.m.
YXU
-
YYZ
Nonstop0h 49m
Air Canada
Deal found 30/3C$ 538
Mon 15/610:55 a.m.
YYZ
-
YXU
Nonstop0h 48m
Air Canada
Fri 3/73:30 p.m.
YXU
-
YYZ
Nonstop0h 45m
Air Canada
Deal found 1/4C$ 541
Fri 12/68:00 p.m.
YUL
-
YXU
1 stop9h 20m
WestJet
Wed 17/66:10 a.m.
YXU
-
YUL
1 stop17h 35m
WestJet
Deal found 30/3C$ 541
Thu 4/612:25 p.m.
YOW
-
YXU
1 stop25h 25m
WestJet
Sun 7/62:40 p.m.
YXU
-
YOW
2 stops9h 40m
WestJet
Deal found 30/3C$ 541
Mon 18/54:45 p.m.
YYZ
-
YXU
Nonstop0h 48m
Air Canada
Mon 25/55:10 a.m.
YXU
-
YYZ
Nonstop0h 48m
Air Canada
Deal found 3/4C$ 554

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 3 April 2026.

Round-trip from

C$ 495

One-way from

C$ 255

Popular in

February

Cheapest in

January

Average price

C$ 644

Good round-trip deal

C$ 490 or less
Air Canada
  • Air Canada
  • 17/4-19/4
  • Nonstop
  • 1h 42m total
  • Ontario to London
Search Deals
WestJet
  • WestJet
  • 27/4
  • 1 total stop
  • 9h 20m total
  • Ontario to London
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 3 April 2026.
Use the filters below to find and compare flights from Ontario to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sun 26/4

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

1 stop9h 20m

London

Sun 3/5

6:10 a.m.-4:30 p.m.

1 stop10h 20m

C$ 499

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Mon 18/5

8:50 p.m.-9:38 p.m.

Nonstop0h 48m

London

Mon 25/5

5:10 a.m.-5:58 a.m.

Nonstop0h 48m

C$ 509

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Tue 28/4

8:30 p.m.-9:19 p.m.

Nonstop0h 49m

London

Thu 30/4

5:40 p.m.-6:29 p.m.

Nonstop0h 49m

C$ 522

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Fri 8/5

8:50 p.m.-9:38 p.m.

Nonstop0h 48m

London

Mon 11/5

5:10 a.m.-5:58 a.m.

Nonstop0h 48m

C$ 536

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Thu 4/6

12:25 p.m.-1:50 p.m.

1 stop25h 25m

London

Sun 7/6

2:40 p.m.-12:20 a.m.

2 stops9h 40m

C$ 541
Quickest round-trip

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Mon 15/6

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

Nonstop0h 48m

London

Fri 3/7

3:30 p.m.-4:15 p.m.

Nonstop0h 45m

C$ 541

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Tue 21/4

4:15 p.m.-5:04 p.m.

Nonstop0h 49m

London

Mon 27/4

5:40 p.m.-6:29 p.m.

Nonstop0h 49m

C$ 563

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sun 26/4

4:55 p.m.-5:20 a.m.

2 stops12h 25m

London

Wed 6/5

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

1 stop11h 00m

C$ 594

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Wed 24/6

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

1 stop9h 20m

London

Tue 30/6

2:40 p.m.-9:35 p.m.

1 stop6h 55m

C$ 605

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Mon 8/6

11:10 p.m.-1:50 p.m.

1 stop14h 40m

London

Thu 11/6

5:55 p.m.-9:15 p.m.

1 stop27h 20m

C$ 615

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/3

Showing 1-10 of 57 resultsSorted by cheapest first
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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, June is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 111). Flying from Region of Ontario to London, Ontario in December is currently the most expensive (average of C$ 161). 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 3 April 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 at noon 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 28 March 2026.

Travelers seeking maximum savings on their Region of Ontario to London, Ontario flight should consider departing on Sunday at noon 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 3 April 2026.

The most flights from CAON to YXU are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 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 3 April 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
3,310 reviews
Check prices

Boarding

7.4

Comfort

7.0

Food

6.2

Crew

7.9

Overall

7.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Janice,Mar 2026

TQO - YYZ

I had a very happy experience with fast boarding, an early flight and landing, and a quick baggage claim.
WestJet
7.2
Good
3,310 reviews
WestJet
7.2
Good
3,310 reviews
Check prices

Boarding

7.4

Comfort

7.0

Food

6.2

Crew

7.9

Overall

7.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Janice,Mar 2026

TQO - YYZ

I had a very happy experience with fast boarding, an early flight and landing, and a quick baggage claim.
Air Canada
7.1
Good
10,886 reviews
WestJet
7.2
Good
3,310 reviews
Check prices

Boarding

7.4

Comfort

7.0

Food

6.2

Crew

7.9

Overall

7.2

Entertainment

6.1

Reviews

1 / 20
10.0
Excellent

Janice,Mar 2026

TQO - YYZ

I had a very happy experience with fast boarding, an early flight and landing, and a quick baggage claim.

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 48m. The time it takes to get you to your destination can typically vary by up to 8h 32m. Region of Ontario and London, Ontario are separated by a distance of 143 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 Montreal Pierre Elliott Trudeau Intl - London, Toronto Pearson Intl - London or Ottawa - 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 SWISS (71%), United Airlines (65%) or Lufthansa (61%) 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$ 488. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London) can be booked for C$ 636 on average, our data indicates C$ 574 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, June is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 111). Flying from Region of Ontario to London, Ontario in December is currently the most expensive (average of C$ 161). 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
Vancouver Intl to Pierre Elliott Trudeau Intl flights
Vancouver Intl to Toronto Island flights
Abbotsford to Pearson Intl flights
Victoria to Pearson Intl flights
Edmonton to Pearson Intl flights
Calgary to Pearson Intl flights
Vancouver Intl to Region of Waterloo Intl flights
Halifax to Toronto Island flights
Winnipeg to Pearson Intl flights
Calgary to Hamilton flights
Halifax to Pearson Intl flights
Vancouver Intl to Ottawa flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Edmonton to Hamilton flights
Halifax to Pierre Elliott Trudeau Intl flights
Halifax to Hamilton flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Calgary to Toronto Island flights
Saskatoon to Pearson Intl flights
Winnipeg to Toronto Island flights
Calgary to Pierre Elliott Trudeau Intl flights
Edmonton to Toronto Island flights
Calgary to Region of Waterloo Intl flights
Abbotsford to Pierre Elliott Trudeau Intl flights
St. John's to Pearson Intl flights
Edmonton to Pierre Elliott Trudeau Intl flights
Halifax to Region of Waterloo Intl flights
Calgary to Ottawa flights
Abbotsford to Region of Waterloo Intl flights
Winnipeg to Hamilton flights
Kelowna to Pearson Intl flights
Québec City to Pearson Intl flights
Québec City to Toronto Island flights
Edmonton to Ottawa flights
Abbotsford to Hamilton flights
Thunder Bay to Pearson Intl flights
Pearson Intl to Thunder Bay flights
Thunder Bay to Toronto Island flights
Moncton to Toronto Island flights
Toronto Island to Thunder Bay flights
Ottawa to Toronto Island flights
Regina to Pearson Intl flights
St. John's to Hamilton flights
Ottawa to Pearson Intl flights
Fredericton to Toronto Island flights
Halifax to Ottawa 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 3 April 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 331AverageC$ 381FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 446AverageC$ 910FlexibilityNo 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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