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Cheap flights from Ontario to London, ON from C$ 243

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — YXU
3 Aug — 10 Aug1
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 4 July 2026.

Tue 18/88:00 a.m.
YYZ
-
YXU
1 stop5h 50m
WestJet
Tue 25/82:40 p.m.
YXU
-
YYZ
1 stop6h 55m
WestJet
Deal found 29/6C$ 397
Thu 23/711:10 p.m.
YYZ
-
YXU
1 stop14h 40m
WestJet
Sun 26/72:40 p.m.
YXU
-
YYZ
1 stop6h 55m
WestJet
Deal found 1/7C$ 402
Tue 18/88:00 a.m.
YYZ
-
YXU
1 stop5h 50m
WestJet
Sun 30/82:40 p.m.
YXU
-
YYZ
1 stop6h 55m
WestJet
Deal found 2/7C$ 410
Fri 28/88:00 a.m.
YYZ
-
YXU
1 stop5h 50m
WestJet
Sun 30/82:40 p.m.
YXU
-
YYZ
1 stop6h 55m
WestJet
Deal found 29/6C$ 421
Tue 28/78:00 a.m.
YYZ
-
YXU
1 stop5h 50m
WestJet
Tue 4/82:40 p.m.
YXU
-
YYZ
1 stop20h 35m
WestJet
Deal found 30/6C$ 438
Thu 20/811:10 p.m.
YYZ
-
YXU
1 stop14h 40m
WestJet
Sun 30/82:40 p.m.
YXU
-
YYZ
1 stop6h 55m
WestJet
Deal found 2/7C$ 453
Mon 10/812:25 p.m.
YOW
-
YXU
1 stop25h 25m
WestJet
Fri 14/88:40 p.m.
YXU
-
YOW
1 stop8h 55m
WestJet
Deal found 1/7C$ 489
Fri 7/87:00 a.m.
YYZ
-
YXU
1 stop6h 50m
Multiple Airlines
Tue 11/82:40 p.m.
YXU
-
YYZ
1 stop6h 55m
Multiple Airlines
Deal found 1/7C$ 499
Tue 18/812:40 p.m.
YYZ
-
YXU
2 stops16h 40m
WestJet
Fri 28/82:40 p.m.
YXU
-
YYZ
1 stop6h 55m
WestJet
Deal found 2/7C$ 502
Sat 25/712:25 p.m.
YOW
-
YXU
1 stop25h 25m
WestJet
Sun 26/72:40 p.m.
YXU
-
YOW
1 stop20h 55m
WestJet
Deal found 30/6C$ 508
Fri 24/78:15 p.m.
YOW
-
YXU
1 stop9h 05m
WestJet
Sun 26/72:40 p.m.
YXU
-
YOW
1 stop20h 55m
WestJet
Deal found 30/6C$ 518
Thu 30/712:25 p.m.
YOW
-
YXU
1 stop25h 25m
WestJet
Thu 6/88:40 p.m.
YXU
-
YOW
1 stop20h 35m
WestJet
Deal found 2/7C$ 529

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 4 July 2026.

Round-trip from

C$ 402

One-way from

C$ 243

Popular in

July

Cheapest in

September

Average price

C$ 917

Good round-trip deal

C$ 637 or less
WestJet
  • WestJet
  • 23/7-26/7
  • 2 total stops
  • 21h 35m total
  • Ontario to London
Search Deals
WestJet
  • WestJet
  • 21/8
  • 1 total stop
  • 9h 05m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 4 July 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

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Thu 30/7

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

1 stop25h 25m

London

Thu 6/8

8:40 p.m.-5:15 p.m.

1 stop20h 35m

C$ 529

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Fri 24/7

8:15 p.m.-5:20 a.m.

1 stop9h 05m

London

Sun 26/7

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

2 stops9h 40m

C$ 558

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Sat 25/7

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

1 stop25h 25m

London

Tue 28/7

2:40 p.m.-11:35 a.m.

1 stop20h 55m

C$ 587

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Thu 3/9

6:30 p.m.-5:20 a.m.

1 stop10h 50m

London

Sun 20/9

5:55 p.m.-5:45 a.m.

1 stop11h 50m

C$ 613

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Thu 23/7

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

1 stop25h 25m

London

Sat 25/7

6:10 a.m.-3:20 p.m.

1 stop9h 10m

C$ 617
Quickest round-trip

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Fri 18/9

2:00 p.m.-2:50 p.m.

Nonstop0h 50m

London

Fri 2/10

5:40 a.m.-6:26 a.m.

Nonstop0h 46m

C$ 619

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Thu 10/9

2:00 p.m.-2:50 p.m.

Nonstop0h 50m

London

Tue 15/9

5:40 a.m.-6:26 a.m.

Nonstop0h 46m

C$ 619

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Wed 22/7

6:25 p.m.-5:20 a.m.

2 stops10h 55m

London

Wed 29/7

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

1 stop9h 20m

C$ 619

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Fri 31/7

8:00 a.m.-1:50 p.m.

1 stop5h 50m

London

Fri 7/8

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

1 stop6h 55m

C$ 664

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Thu 20/8

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

1 stop14h 40m

London

Mon 24/8

5:55 p.m.-6:40 a.m.

1 stop12h 45m

C$ 692

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, January is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 187). Flying from Region of Ontario to London, Ontario in November is currently the most expensive (average of C$ 539). 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 4 July 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 30% on airfare.

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 4 July 2026.

The most flights from CAON to YXU are scheduled on a Tuesday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

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

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 4 July 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. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 4 July 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
3,396 reviews
Check prices

Comfort

7.0

Food

6.2

Overall

7.2

Boarding

7.4

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2023

YWG - YYZ

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.
WestJet
7.2
Good
3,396 reviews
WestJet
7.2
Good
3,396 reviews
Check prices

Comfort

7.0

Food

6.2

Overall

7.2

Boarding

7.4

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2023

YWG - YYZ

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.
Air Canada
7.1
Good
11,296 reviews
WestJet
7.2
Good
3,396 reviews
Check prices

Comfort

7.0

Food

6.2

Overall

7.2

Boarding

7.4

Crew

7.9

Entertainment

6.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2023

YWG - YYZ

I hope there’s a complimentary wi-fi during flight if no entertainment is available. Also, the cabin is a little bit warm during the flight and it’s also late but I’m not worried about 20 mins late. It’s more of comfort I guess but the crews are awesome. The pilot did an amazing take off and landing.

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 50m. The time it takes to get you to your destination can typically vary by up to 24h 35m. 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 Toronto Pearson Intl - London, Montreal Pierre Elliott Trudeau 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 Emirates (71%), SWISS (69%) or Air Canada (62%) 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$ 561. While the most popular route (Toronto Pearson Intl - London) can be booked for C$ 619 on average, our data indicates C$ 777 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, January is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 187). Flying from Region of Ontario to London, Ontario in November is currently the most expensive (average of C$ 539). 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

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Book flights to London if you plan to visit one of these locations
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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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Saskatoon to Pearson Intl flights
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Toronto Island to Ottawa flights
Québec City to Pearson Intl flights
Pearson Intl to Ottawa flights
Edmonton to Pierre Elliott Trudeau Intl flights
Abbotsford to Hamilton flights
Abbotsford to Pierre Elliott Trudeau Intl flights
Québec City to Toronto Island flights
St. John's to Hamilton flights
Hamilton to Ottawa flights
Victoria to Pearson Intl flights
Hamilton to Pierre Elliott Trudeau Intl flights
Edmonton to Ottawa flights
Moncton to Toronto Island flights
Ottawa to Pearson Intl flights
Winnipeg to Pierre Elliott Trudeau Intl flights
Regina to Pearson Intl flights
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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 4 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 338AverageC$ 376FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 453AverageC$ 912FlexibilityNo 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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