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Cheap flights from Ontario to London, ON from C$ 266

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
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to London

Keep the following information in mind while searching for Ontario to London flight deals. Data was last updated 5 November 2025.

Round-trip from

C$ 448

One-way from

C$ 266

Popular in

November

Cheapest in

January

Average price

C$ 814

Good round-trip deal

C$ 556 or less
1/12-8/12
  • 1/12-8/12
  • 3 total stops
  • 33h 27m total
  • Ontario to London
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WestJet
  • WestJet
  • 20/4
  • 1 total stop
  • 12h 05m total
  • Ontario to London
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ontario to London.
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Find 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 5 November 2025.

Mon 1/128:45 p.m.YYZ - YXU
2 stops22h 27mMultiple Airlines
Mon 8/128:10 p.m.YXU - YYZ
1 stop11h 00mMultiple Airlines
Deal found 3/11C$ 448
Tue 2/121:30 p.m.YYZ - YXU
1 stop29h 42mWestJet
Tue 9/128:10 p.m.YXU - YYZ
1 stop10h 03mWestJet
Deal found 4/11C$ 458
Tue 2/129:30 p.m.YYZ - YXU
1 stop21h 42mMultiple Airlines
Tue 9/128:10 p.m.YXU - YYZ
1 stop11h 00mMultiple Airlines
Deal found 4/11C$ 473
Wed 3/126:30 a.m.YYZ - YXU
1 stop12h 42mWestJet
Wed 10/128:10 p.m.YXU - YYZ
1 stop28h 16mWestJet
Deal found 4/11C$ 491
Sun 7/128:30 p.m.YYZ - YXU
Nonstop0h 51mAir Canada
Thu 15/15:10 a.m.YXU - YYZ
Nonstop0h 57mAir Canada
Deal found 3/11C$ 500
Mon 1/125:00 p.m.YYZ - YXU
1 stop26h 12mWestJet
Mon 8/128:10 p.m.YXU - YYZ
1 stop10h 03mWestJet
Deal found 3/11C$ 508
Tue 2/124:15 p.m.YUL - YXU
1 stop26h 57mWestJet
Tue 9/128:10 p.m.YXU - YUL
1 stop10h 55mWestJet
Deal found 3/11C$ 525
Tue 2/125:45 p.m.YOW - YXU
1 stop25h 27mWestJet
Tue 9/128:10 p.m.YXU - YOW
1 stop20h 43mWestJet
Deal found 4/11C$ 543
Mon 1/127:30 p.m.YUL - YXU
1 stop23h 42mWestJet
Mon 8/128:10 p.m.YXU - YUL
1 stop10h 55mWestJet
Deal found 3/11C$ 548
Sun 30/114:15 p.m.YYZ - YXU
Nonstop0h 50mAir Canada
Sun 7/125:40 p.m.YXU - YYZ
Nonstop0h 49mAir Canada
Deal found 2/11C$ 552
Sun 30/119:55 p.m.YYZ - YXU
3 stops21h 17mMultiple Airlines
Sun 7/128:10 p.m.YXU - YYZ
1 stop11h 00mMultiple Airlines
Deal found 2/11C$ 563
Wed 3/125:40 a.m.YOW - YXU
2 stops13h 32mWestJet
Wed 10/128:10 p.m.YXU - YOW
1 stop28h 30mWestJet
Deal found 3/11C$ 581

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 5 November 2025.
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 1/12

8:45 p.m.-7:12 p.m.

2 stops22h 27m

London

Mon 8/12

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

1 stop11h 00m

C$ 448

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Wed 18/3

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

1 stop12h 05m

London

Wed 25/3

8:10 p.m.-6:13 a.m.

1 stop10h 03m

C$ 463

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Mon 13/4

2:10 p.m.-6:35 a.m.

1 stop16h 25m

London

Sun 19/4

8:10 p.m.-6:40 a.m.

1 stop10h 30m

C$ 470

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Tue 2/12

9:30 p.m.-7:12 p.m.

1 stop21h 42m

London

Tue 9/12

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

1 stop11h 00m

C$ 473

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Wed 3/12

6:30 a.m.-7:12 p.m.

1 stop12h 42m

London

Wed 10/12

8:10 p.m.-12:26 a.m.

1 stop28h 16m

C$ 491

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Sun 7/12

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

Nonstop0h 51m

London

Thu 15/1

5:10 a.m.-6:07 a.m.

Nonstop0h 57m

C$ 500

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Mon 1/12

5:00 p.m.-7:12 p.m.

1 stop26h 12m

London

Mon 8/12

8:10 p.m.-6:13 a.m.

1 stop10h 03m

C$ 508

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Wed 3/12

9:15 a.m.-7:12 p.m.

1 stop9h 57m

London

Wed 10/12

8:10 p.m.-6:58 a.m.

2 stops34h 48m

C$ 508

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

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

1 stop11h 05m

London

Fri 6/2

7:30 a.m.-4:55 p.m.

2 stops33h 25m

C$ 514

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Tue 2/12

8:00 a.m.-7:12 p.m.

2 stops11h 12m

London

Tue 9/12

8:10 p.m.-6:13 a.m.

1 stop10h 03m

C$ 517

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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$ 86). Flying from Region of Ontario to London, Ontario in February is currently the most expensive (average of C$ 168). 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 5 November 2025.

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 evening could potentially save you up to 42% 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 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to London, Ontario flight should consider departing on Monday mornings 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 5 November 2025.

The most flights from CAON to YXU are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

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 5 November 2025.
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
3,153 reviews
Check prices

Comfort

7.1

Crew

7.9

Overall

7.2

Boarding

7.4

Entertainment

6.1

Food

6.2

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
3,153 reviews
WestJet
7.2
Good
3,153 reviews
Check prices

Comfort

7.1

Crew

7.9

Overall

7.2

Boarding

7.4

Entertainment

6.1

Food

6.2

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
10,408 reviews
WestJet
7.2
Good
3,153 reviews
Check prices

Comfort

7.1

Crew

7.9

Overall

7.2

Boarding

7.4

Entertainment

6.1

Food

6.2

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 51m. The time it takes to get you to your destination can typically vary by up to 11h 14m. 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 Ottawa - London, Montreal Pierre Elliott Trudeau Intl - London or Toronto Island - 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 Lufthansa (81%), Avianca (79%) or Air Canada (76%) 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$ 531. While the most popular route (Ottawa - London) can be booked for C$ 591 on average, our data indicates C$ 632 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$ 86). Flying from Region of Ontario to London, Ontario in February is currently the most expensive (average of C$ 168). 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
Abbotsford to Pearson Intl flights
Vancouver Intl to Pierre Elliott Trudeau Intl flights
Vancouver Intl to Toronto Island flights
Vancouver Intl to Hamilton flights
Calgary to Pearson Intl flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Halifax to Pearson Intl flights
Vancouver Intl to Region of Waterloo Intl flights
Toronto Island to Pierre Elliott Trudeau Intl flights
Edmonton to Pearson Intl flights
Winnipeg to Pearson Intl flights
Calgary to Toronto Island flights
Halifax to Toronto Island flights
Calgary to Hamilton flights
Halifax to Hamilton flights
Calgary to Pierre Elliott Trudeau Intl flights
Vancouver Intl to Ottawa flights
Pierre Elliott Trudeau Intl to Pearson Intl flights
Halifax to Pierre Elliott Trudeau Intl flights
Calgary to Region of Waterloo Intl flights
Pierre Elliott Trudeau Intl to Toronto Island flights
Kelowna to Pearson Intl flights
Pearson Intl to Thunder Bay flights
Saskatoon to Pearson Intl flights
Edmonton to Hamilton flights
Toronto Island to Thunder Bay flights
Edmonton to Toronto Island flights
Winnipeg to Toronto Island flights
Halifax to Region of Waterloo Intl flights
Victoria to Pearson Intl flights
Abbotsford to Region of Waterloo Intl flights
Winnipeg to Pierre Elliott Trudeau Intl flights
Pearson Intl to Ottawa flights
Abbotsford to Pierre Elliott Trudeau Intl flights
Calgary to Ottawa flights
Ottawa to Pearson Intl flights
Toronto Island to Ottawa flights
Halifax to Ottawa flights
Edmonton to Ottawa flights
Québec City to Pearson Intl flights
Edmonton to Pierre Elliott Trudeau Intl flights
Winnipeg to Ottawa flights
Ottawa to Toronto Island flights
Thunder Bay to Pearson Intl flights
Moncton to Pearson Intl flights
St. John's to Pearson Intl flights
Abbotsford to Hamilton flights
Regina 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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 362AverageC$ 906FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 380AverageC$ 583FlexibilityNo cancel feeOn-time60%
Search WestJet 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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