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C$ 208+ Cheap flights to Ontario

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
— ONT
18 Aug — 25 Aug1
1 adult

Flights to Ontario in 2025

Find the latest flights to Ontario in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 13 August 2025.

Round-trip from

C$ 244

One-way from

C$ 208

Popular in

December

Cheapest in

September

Average price

C$ 437
Porter Airlines
  • Porter Airlines
  • 18/9-23/9
  • Nonstop
  • 10h 10m total
  • Toronto to Los Angeles
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17/9
  • 17/9
  • 1 total stop
  • 15h 11m total
  • Toronto to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 66 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 24 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals to Ontario

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 13 August 2025.

Fri 3/102:00 p.m.YYZ - ONT
2 stops25h 43mMultiple Airlines
Sat 11/108:00 a.m.ONT - YYZ
1 stop8h 45mMultiple Airlines
Deal found 12/8C$ 391
Wed 1/109:45 a.m.YYZ - ONT
1 stop15h 11mMultiple Airlines
Tue 7/108:00 a.m.ONT - YYZ
2 stops11h 52mMultiple Airlines
Deal found 13/8C$ 393
Wed 3/129:35 a.m.YYZ - ONT
1 stop14h 29mMultiple Airlines
Tue 9/126:30 a.m.ONT - YYZ
1 stop10h 25mMultiple Airlines
Deal found 11/8C$ 409
Thu 2/1010:25 p.m.YYZ - ONT
2 stops41h 18mMultiple Airlines
Sat 11/108:00 a.m.ONT - YYZ
1 stop8h 45mMultiple Airlines
Deal found 12/8C$ 430
Thu 4/129:45 a.m.YYZ - ONT
1 stop14h 19mMultiple Airlines
Wed 10/126:30 a.m.ONT - YYZ
1 stop10h 25mMultiple Airlines
Deal found 10/8C$ 440
Thu 13/1112:40 p.m.YYZ - ONT
1 stop11h 14mMultiple Airlines
Tue 18/1112:47 p.m.ONT - YYZ
1 stop7h 13mMultiple Airlines
Deal found 11/8C$ 453
Fri 26/96:00 a.m.YHM - ONT
2 stops14h 00mMultiple Airlines
Fri 3/106:00 a.m.ONT - YHM
2 stops15h 40mMultiple Airlines
Deal found 12/8C$ 924
Thu 25/96:00 a.m.YHM - ONT
2 stops15h 47mMultiple Airlines
Thu 2/106:00 a.m.ONT - YHM
2 stops15h 40mMultiple Airlines
Deal found 11/8C$ 949
Sun 14/95:45 p.m.YHM - ONT
3 stops26h 15mMultiple Airlines
Thu 18/96:00 a.m.ONT - YHM
2 stops14h 59mMultiple Airlines
Deal found 11/8C$ 997
Fri 3/105:45 p.m.YHM - ONT
2 stops26h 15mMultiple Airlines
Sat 11/106:37 a.m.ONT - YHM
2 stops14h 22mMultiple Airlines
Deal found 12/8C$ 1,024
Fri 3/106:00 a.m.YHM - ONT
2 stops19h 40mWestJet
Sat 11/106:37 a.m.ONT - YHM
2 stops15h 03mWestJet
Deal found 12/8C$ 1,082
Thu 2/106:00 a.m.YHM - ONT
2 stops19h 40mWestJet
Sat 11/106:37 a.m.ONT - YHM
2 stops15h 03mWestJet
Deal found 11/8C$ 1,105

Cheapflights Fare Finder

 
Locate flights to Ontario that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 13 August 2025.
Use the filters below to find and compare flights to Ontario that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Fri 3/10

2:00 p.m.-12:43 p.m.

2 stops25h 43m

Ontario

Sat 11/10

8:00 a.m.-7:45 p.m.

1 stop8h 45m

C$ 400

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Wed 3/12

9:35 a.m.-9:04 p.m.

1 stop14h 29m

Ontario

Tue 9/12

6:30 a.m.-7:55 p.m.

1 stop10h 25m

C$ 409

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Wed 1/10

9:30 a.m.-9:56 p.m.

1 stop15h 26m

Ontario

Tue 7/10

8:00 a.m.-7:45 p.m.

1 stop8h 45m

C$ 427

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Thu 2/10

10:25 p.m.-12:43 p.m.

2 stops41h 18m

Ontario

Sat 11/10

8:00 a.m.-7:45 p.m.

1 stop8h 45m

C$ 430

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Thu 4/12

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

1 stop14h 19m

Ontario

Wed 10/12

6:30 a.m.-7:55 p.m.

1 stop10h 25m

C$ 440

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Thu 13/11

12:40 p.m.-8:54 p.m.

1 stop11h 14m

Ontario

Tue 18/11

12:47 p.m.-11:00 p.m.

1 stop7h 13m

C$ 453

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Sun 14/9

10:00 a.m.-7:17 a.m.

2 stops24h 17m

Ontario

Thu 18/9

9:16 a.m.-7:58 p.m.

1 stop7h 42m

C$ 466

TorontoOntario

YYZ - ONT

YYZONT

Toronto Pearson Intl

Fri 26/9

7:45 p.m.-12:43 p.m.

2 stops19h 58m

Ontario

Fri 3/10

10:28 p.m.-7:45 p.m.

1 stop18h 17m

C$ 513

HamiltonOntario

YHM - ONT

YHMONT

Hamilton

Fri 26/9

6:00 a.m.-5:00 p.m.

2 stops14h 00m

Ontario

Fri 3/10

6:00 a.m.-12:40 a.m.

2 stops15h 40m

C$ 924

HamiltonOntario

YHM - ONT

YHMONT

Hamilton

Thu 25/9

6:00 a.m.-6:47 p.m.

2 stops15h 47m

Ontario

Thu 2/10

6:00 a.m.-12:40 a.m.

2 stops15h 40m

C$ 949

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 36 results
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Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to 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 to Ontario

How long is the flight to Ontario?

On average, a flight from Toronto to Ontario takes 10 hours 55 minutes. Flights to Ontario from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Ontario?

The most popular airlines flying from Toronto to Ontario are Air Canada, United Airlines and American Airlines.

Air Canada
Air Canada
From C$ 263
United Airlines
United Airlines
From C$ 268
Delta
Delta
From C$ 270
WestJet
WestJet
From C$ 185

What are the cheapest airlines that fly to Ontario?

The cheapest airlines flying from Toronto to Ontario are American Airlines, Porter Airlines and Air Canada.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 13 August 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,920 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,920 reviews
United Airlines
7.4
Good
8,920 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.1
Good
9,943 reviews
United Airlines
7.4
Good
8,920 reviews
Check prices

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

FAQs about flying to Ontario

  • What airport do you fly into for flights to Ontario?

    Ontario (ONT), located 4.9 km from the city centre, is the airport you fly into when you book flights to Ontario.

  • Can I find cheaper flights to Ontario if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ontario?

    Based on reviews from Cheapflights users, American Airlines is rated the highest out of the airlines that fly to Ontario.

  • What is the cheapest airport to fly to in Ontario?

    Ontario is currently the cheapest airport to fly to in Ontario. One-way flights to Ontario typically cost C$ 40, while round-trip flights cost around C$ 368.

  • How much is a round-trip flight to Ontario?

    A round-trip flight to Ontario will typically cost around C$ 267, however they can be found for as little as C$ 267.

  • Where does the fastest flight to Ontario depart from?

    For those looking to save time traveling to Ontario, Vancouver offers the quickest one-way flight (4 hours 57 minutes).

  • Does Ontario have rental cars?

    Yes. Those touching down at Ontario can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Ontario?

    Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

See more FAQs

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Flights from San Francisco to Ontario

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How does Cheapflights help users find flights to Ontario?

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Why should you use Cheapflights to find cheap flight tickets to Ontario?

Cheapflights helps you find that perfect flight to Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Ontario with no change fees?

Yes, we can. To see specific flights to Ontario 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 to Ontario become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Ontario today and book when you’re ready!

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