Find flights
Deals

C$ 96+ Cheap flights from 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 6/5. 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.
ONT — YVR
7 May — 14 May1
1 adult
1 adult, Economy, 0 bags

Find flights from Ontario within your budget

 
Find flights departing from Ontario that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 7 April 2026. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 12/5

2:10 p.m.-10:45 p.m.

2 stops8h 35m

San Francisco

Tue 19/5

2:50 p.m.-9:45 p.m.

1 stop6h 55m

C$ 217

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 8/6

4:40 p.m.-12:50 a.m.

2 stops8h 10m

San Francisco

Tue 9/6

10:25 a.m.-8:00 p.m.

2 stops9h 35m

C$ 256

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 11/5

1:30 p.m.-2:59 p.m.

Nonstop1h 29m

San Francisco

Tue 12/5

9:23 p.m.-10:59 p.m.

Nonstop1h 36m

C$ 302

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 18/5

6:59 p.m.-8:28 p.m.

Nonstop1h 29m

San Francisco

Wed 20/5

9:23 p.m.-10:59 p.m.

Nonstop1h 36m

C$ 302

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 2/5

1:30 p.m.-2:59 p.m.

Nonstop1h 29m

San Francisco

Wed 6/5

9:23 p.m.-10:59 p.m.

Nonstop1h 36m

C$ 330

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 9/5

6:59 p.m.-8:28 p.m.

Nonstop1h 29m

San Francisco

Mon 11/5

9:23 p.m.-10:59 p.m.

Nonstop1h 36m

C$ 344

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Mon 27/4

1:27 p.m.-2:56 p.m.

Nonstop1h 29m

San Francisco

Thu 7/5

8:10 a.m.-9:41 a.m.

Nonstop1h 31m

C$ 344

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Mon 20/7

6:00 a.m.-10:48 a.m.

1 stop4h 48m

Vancouver Intl

Thu 23/7

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

1 stop5h 12m

C$ 369

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Fri 29/5

3:00 p.m.-10:10 p.m.

2 stops7h 10m

San Francisco

Mon 1/6

4:05 p.m.-11:05 p.m.

2 stops7h 00m

C$ 373

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 2/6

2:10 p.m.-10:45 p.m.

2 stops8h 35m

San Francisco

Fri 12/6

3:45 p.m.-12:05 a.m.

2 stops8h 20m

C$ 381

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Ontario

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

Travel insights for flights from Ontario

Get recent, data-driven insights about flights from Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario?

Currently, November is the cheapest month in which you can book a flight from Ontario (average of C$ 96). Flying from Ontario in August will prove the most costly (average of C$ 153). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

What are popular destinations to fly to from Ontario?

From Ontario you can expect to find greater availability for the following destinations: Seattle (105 flights per day), Atlanta (67 flights per day) and San Francisco (65 flights per day).

San Francisco
San Francisco
From C$ 306
San Salvador El Salvador Intl
San Salvador El Salvador Intl
From C$ 1,183
Taipei City Taiwan Taoyuan Intl
Taipei City Taiwan Taoyuan Intl
From C$ 1,805
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From C$ 61

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Las Vegas Harry Reid Intl, with prices starting at C$ 61. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From C$ 61
San Jose
San Jose
From C$ 109
Portland
Portland
From C$ 131
Salt Lake City
Salt Lake City
From C$ 230

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Related info for your journey

Access useful and relevant information related to your journey from Ontario. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 7 April 2026.

  • What are the most popular destinations to fly to from Ontario?

    This month, the top selected destinations from Ontario are Las Vegas, Dallas/Fort Worth Airport, Denver. Throughout the year, Las Vegas, Dallas/Fort Worth Airport, Denver are some of the top choices made by users flying from Ontario.

  • What is the cheapest flight from Ontario to anywhere?

    Users have flown out of Ontario for as low as C$ 61 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 603 to fly from Ontario.

  • What is the cheapest premium economy flight from Ontario?

    Options for some of the cheapest premium economy flights from Ontario we have found on Cheapflights are as follows:
    Fly from Ontario to Houston George Bush Intcntl Airport starting at C$ 1,217

  • What is the cheapest month to fly from Ontario?

    At the present moment the cheapest month to fly from Ontario is currently November; with August being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Ontario?

    Check out the cheapest flights from Ontario to embark to:
    Travel from Ontario to Vancouver from C$ 341 round trip
    Travel from Ontario to Toronto from C$ 418 round trip
    Travel from Ontario to Calgary from C$ 429 round trip

  • How does Cheapflights help users find flights from Ontario?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

    Cheapflights helps you find that perfect flight from 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 from Ontario with no change fees?

    Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario, users can toggle the no change fees filter when performing a flight search.

  • Can Cheapflights notify me if prices for flights from Ontario become cheaper?

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

See more FAQs

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?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight from 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 from Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.