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Cheap flights from Ontario to London, ON from C$ 230

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — YXU
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

C$ 444

One-way from

C$ 230

Popular in

September

Cheapest in

January

Average price

C$ 587

Good round-trip deal

C$ 529 or less

Good one-way deal

C$ 275 or less
Air Canada
  • Air Canada
  • 28/5-29/5
  • Nonstop
  • 1h 37m total
  • Ontario to London
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Air Canada
  • Air Canada
  • 18/6
  • Nonstop
  • 0h 47m total
  • Ontario to London
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Highest demand for flights based on searches. 4% potential increase in price (C$ 40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Ontario to London.
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Price to beat on a one-way flight from Ontario to London.
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Find flight deals from Ontario to London

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 30 April 2025.

Thu 29/52:15 p.m.YYZ - YXU
Nonstop0h 48mAir Canada
Thu 5/69:55 a.m.YXU - YYZ
Nonstop0h 48mAir Canada
Deal found 29/4C$ 444
Tue 10/610:40 p.m.YYZ - YXU
2 stops30h 34mMultiple Airlines
Mon 16/69:45 p.m.YXU - YYZ
1 stop26h 59mMultiple Airlines
Deal found 29/4C$ 550
Tue 27/57:15 p.m.YOW - YXU
1 stop9h 59mWestJet
Wed 4/68:00 p.m.YXU - YOW
1 stop10h 45mWestJet
Deal found 28/4C$ 550
Tue 27/56:30 a.m.YYZ - YXU
1 stop22h 44mWestJet
Tue 3/68:00 p.m.YXU - YYZ
1 stop10h 12mWestJet
Deal found 29/4C$ 574
Sat 7/69:00 a.m.YOW - YXU
2 stops20h 14mMultiple Airlines
Sun 8/68:00 p.m.YXU - YOW
1 stop10h 45mMultiple Airlines
Deal found 28/4C$ 695
Sat 14/68:15 a.m.YUL - YXU
3 stops20h 59mMultiple Airlines
Sat 21/68:00 p.m.YXU - YUL
2 stops21h 47mMultiple Airlines
Deal found 28/4C$ 699
Mon 26/54:00 p.m.YUL - YXU
1 stop5h 28mAir Canada
Mon 2/69:55 a.m.YXU - YUL
1 stop3h 26mAir Canada
Deal found 28/4C$ 763
Sat 7/67:00 a.m.YTZ - YXU
3 stops22h 14mMultiple Airlines
Sun 15/66:00 a.m.YXU - YTZ
2 stops27h 37mMultiple Airlines
Deal found 28/4C$ 846
Mon 26/56:45 a.m.YUL - YXU
2 stops22h 29mWestJet
Mon 2/68:00 p.m.YXU - YUL
1 stop28h 43mWestJet
Deal found 28/4C$ 1,006
Tue 27/59:20 a.m.YOW - YXU
1 stop5h 43mAir Canada
Wed 4/66:15 a.m.YXU - YOW
2 stops7h 35mAir Canada
Deal found 28/4C$ 1,071
Thu 22/59:45 a.m.YSB - YXU
1 stop5h 18mAir Canada
Tue 27/56:15 a.m.YXU - YSB
1 stop2h 52mAir Canada
Deal found 28/4C$ 1,099

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 30 April 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

Thu 29/5

2:15 p.m.-3:03 p.m.

Nonstop0h 48m

London

Thu 5/6

9:55 a.m.-10:43 a.m.

Nonstop0h 48m

C$ 444

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Tue 10/6

10:40 p.m.-5:14 a.m.

2 stops30h 34m

London

Mon 16/6

9:45 p.m.-12:44 a.m.

1 stop26h 59m

C$ 550

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Tue 27/5

7:15 p.m.-5:14 a.m.

1 stop9h 59m

London

Wed 4/6

8:00 p.m.-6:45 a.m.

1 stop10h 45m

C$ 550

TorontoLondon

YYZ - YXU

YYZYXU

Toronto Pearson Intl

Tue 27/5

6:30 a.m.-5:14 a.m.

1 stop22h 44m

London

Tue 3/6

8:00 p.m.-6:12 a.m.

1 stop10h 12m

C$ 574

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Sat 7/6

9:00 a.m.-5:14 a.m.

2 stops20h 14m

London

Sun 8/6

8:00 p.m.-6:45 a.m.

1 stop10h 45m

C$ 695

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sat 14/6

8:15 a.m.-5:14 a.m.

3 stops20h 59m

London

Sat 21/6

8:00 p.m.-5:47 p.m.

2 stops21h 47m

C$ 699

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 26/5

4:00 p.m.-9:28 p.m.

1 stop5h 28m

London

Mon 2/6

9:55 a.m.-1:21 p.m.

1 stop3h 26m

C$ 763

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 26/5

6:45 a.m.-5:14 a.m.

2 stops22h 29m

London

Mon 2/6

8:00 p.m.-12:43 a.m.

1 stop28h 43m

C$ 1,006

OttawaLondon

YOW - YXU

YOWYXU

Ottawa

Tue 27/5

9:20 a.m.-3:03 p.m.

1 stop5h 43m

London

Wed 4/6

6:15 a.m.-1:50 p.m.

2 stops7h 35m

C$ 1,071

SudburyLondon

YSB - YXU

YSBYXU

Sudbury

Wed 14/5

9:45 a.m.-3:04 p.m.

1 stop5h 19m

London

Wed 21/5

9:55 a.m.-3:17 p.m.

1 stop5h 22m

C$ 1,165

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Showing 1-10 of 19 results
1
2

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, October is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 243). Flying from Region of Ontario to London, Ontario in December is currently the most expensive (average of C$ 478). 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 30 April 2025.

When flying from Region of Ontario to London, Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London, Ontario ranges from 70.0 - 100.0 mm per month. January is typically the wettest month, when rainfall can reach 100.0 mm. March is typically the driest time to visit London, Ontario when rainfall is around 70.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

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 30 April 2025.
Get a feel of what it's like to fly with WestJet and Air Canada from Ontario to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
2,823 reviews
Check prices

Crew

7.9

Entertainment

6.1

Boarding

7.4

Comfort

7.1

Food

6.2

Overall

7.2

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
2,823 reviews
WestJet
7.2
Good
2,823 reviews
Check prices

Crew

7.9

Entertainment

6.1

Boarding

7.4

Comfort

7.1

Food

6.2

Overall

7.2

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
7.0
Good
9,242 reviews
WestJet
7.2
Good
2,823 reviews
Check prices

Crew

7.9

Entertainment

6.1

Boarding

7.4

Comfort

7.1

Food

6.2

Overall

7.2

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.

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

    Most travellers choose Montreal Pierre Elliott Trudeau Intl - London, Ottawa - London or Toronto Pearson 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 Lufthansa (69%), Emirates (67%) or United Airlines (67%) 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$ 199. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London) can be booked for C$ 656 on average our data indicates C$ 479 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, October is the cheapest month in which you can book a flight from Region of Ontario to London, Ontario (average of C$ 243). Flying from Region of Ontario to London, Ontario in December is currently the most expensive (average of C$ 478). 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 Ontario?

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

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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.
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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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 356AverageC$ 858FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 480AverageC$ 570FlexibilityNo 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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