C$ 251 Find Cheap Flights from London to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Ontario departing on 15/4. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Ontario, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Best Ontario Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ottawa
Ottawa2 stopsC$ 641
Thunder Bay
Thunder Bay1 stopC$ 456
Timmins
Timmins1 stopC$ 1,553
Sudbury
Sudbury1 stopC$ 800
Ottawa
Ottawa2 stopsC$ 641
Thunder Bay
Thunder Bay1 stopC$ 456
Timmins
Timmins1 stopC$ 1,553
Sudbury
Sudbury1 stopC$ 800

Cheap Flights from London to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Ontario

Sun, 24 May - Thu, 28 May
WestJet Logo
2:40 p.m. - 10:25 a.m.
YXU
-
YQT
19h 45m
1 stop
WestJet Logo
7:50 p.m. - 5:20 a.m.
YQT
-
YXU
9h 30m
1 stop
C$ 456WestJet
Sun, 24 May - Thu, 28 May
WestJet Logo
2:40 p.m. - 7:00 p.m.
YXU
-
YQT
28h 20m
2 stops
WestJet Logo
7:50 p.m. - 5:20 a.m.
YQT
-
YXU
9h 30m
1 stop
C$ 490WestJet
Thu, 9 Apr - Sun, 12 Apr
Air Canada Logo
5:40 p.m. - 6:29 p.m.
YXU
-
YYZ
0h 49mdirect
Air Canada Logo
7:55 a.m. - 8:44 a.m.
YYZ
-
YXU
0h 49mdirect
C$ 496Air Canada
Fri, 17 Apr - Fri, 24 Apr
Air Canada Logo
5:40 p.m. - 6:29 p.m.
YXU
-
YYZ
0h 49mdirect
Air Canada Logo
4:15 p.m. - 5:04 p.m.
YYZ
-
YXU
0h 49mdirect
C$ 515Air Canada
Sun, 24 May - Thu, 28 May
WestJet Logo
2:40 p.m. - 7:00 p.m.
YXU
-
YQT
28h 20m
2 stops
WestJet Logo
7:20 p.m. - 5:20 a.m.
YQT
-
YXU
10h 00m
2 stops
C$ 534WestJet
Thu, 16 Apr - Thu, 23 Apr
Air Canada Logo
5:40 p.m. - 6:29 p.m.
YXU
-
YYZ
0h 49mdirect
Air Canada Logo
4:15 p.m. - 5:04 p.m.
YYZ
-
YXU
0h 49mdirect
C$ 538Air Canada
Sat, 18 Apr - Sat, 25 Apr
Air Canada Logo
5:40 p.m. - 6:29 p.m.
YXU
-
YYZ
0h 49mdirect
Air Canada Logo
4:15 p.m. - 5:04 p.m.
YYZ
-
YXU
0h 49mdirect
C$ 555Air Canada
Thu, 16 Apr - Mon, 20 Apr
Air Canada Logo
9:25 a.m. - 10:14 a.m.
YXU
-
YYZ
0h 49mdirect
Air Canada Logo
4:15 p.m. - 5:04 p.m.
YYZ
-
YXU
0h 49mdirect
C$ 563Air Canada
Sat, 18 Apr - Sat, 25 Apr
Air Canada Logo
5:10 a.m. - 6:03 a.m.
YXU
-
YYZ
0h 53mdirect
Air Canada Logo
4:15 p.m. - 5:04 p.m.
YYZ
-
YXU
0h 49mdirect
C$ 574Air Canada
Fri, 22 May - Mon, 25 May
Multiple Airlines Logo
2:40 p.m. - 5:35 a.m.
YXU
-
YOW
14h 55m
2 stops
Multiple Airlines Logo
4:10 p.m. - 1:50 p.m.
YOW
-
YXU
21h 40m
1 stop
C$ 700Multiple Airlines
Booking Insights

KAYAK's insights & trends for London to Ontario flights

Get data-powered insights and trends into flights from London to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from London found in the last 72 hours was to Toronto, at C$ 477 round-trip. The most popular route is from London (YXU) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 477.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights from London to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally in the afternoon, when round-trip flights cost C$ 762 on average. Morning departures are around 21% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is C$ 1,004.

Can I save money by flying with a layover from London to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 450 on average.

What’s the cheapest day of the week to fly from London to Ontario?

The average price of all round-trip flights from London to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

Good to know

Low seasonFebruary
Cheapest flightC$ 251
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from London to Toronto

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from London to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Ontario

  • Looking for a cheap flight? 25% of our users found tickets from London to the following destinations at these prices or less: Toronto C$ 288 one-way - C$ 619 round-trip

Reviews of the top airline flying from London to Ontario

 
See real verified KAYAK customer reviews for airlines flying from London to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10818 reviews
7.1Comfort
6.8Entertainment
7.8Crew
7.3Boarding
6.3Food
Airline reviews

The plane was almost an hour delayed and then once we were on board, they said that captain didn’t have enough hours left in his day to fly us so they had to find another captain. Surely that could’ve been figured out out in advance. Incredibly frustrating because I missed my connection in Toronto, and it has a result missed the first day of my conference in Charlotte, North Carolina.

2.0 MediocreWes, Feb 2026
YEG - YYZ
Read more Air Canada reviews

The plane was almost an hour delayed and then once we were on board, they said that captain didn’t have enough hours left in his day to fly us so they had to find another captain. Surely that could’ve been figured out out in advance. Incredibly frustrating because I missed my connection in Toronto, and it has a result missed the first day of my conference in Charlotte, North Carolina.

Flight from saskatoon to toronto was by far the worst flight ive ever been on and roughest landing ever.

Mechanical issue caused me to be stuck in Vancouver for 2 days

The on-board entertainment system was horrible - we gave up watching because it just kept glitching.

Had to cancel the flight because there was a 14 hour layover before the flight. Unacceptable.

I wish Air Canada would provide a meal on the 5 hrs or more time flight to the passengers.

Terrible… Luggage’s missing for 5-days. Not expedited despite notifying them that insulin and ozempic were in bags and required refrigeration. I’m extremely disappointed. Meds were useless upon delivery as ice pack had dissolved and meds were warm and not useable because their efficacy and potency are now questionable . I’m so disappointed and expecting a full refund for the checked in bags.

Very bed experience never want to travel air canada anymore

I travelled in Business class for the first time and wish I could do that again.

My flights were all either late or canceled. It was stressful and a waste of my time. This is the third flight in a row with Air Canada that has been a scheduling mess. Not appreciated.

Everything you need to know for your flight from London to Ontario

Information on your arrival and departure airports