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C$ 77+ 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 31/8. 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
18 Aug — 25 Aug1
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 19 July 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

Sat 29/8

2:55 p.m.-8:35 p.m.

1 stop5h 40m

San Francisco

Sat 5/9

3:10 p.m.-8:05 p.m.

1 stop4h 55m

C$ 212

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 22/8

1:56 p.m.-3:25 p.m.

Nonstop1h 29m

San Francisco

Mon 24/8

9:25 p.m.-10:59 p.m.

Nonstop1h 34m

C$ 262

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 22/8

1:56 p.m.-3:25 p.m.

Nonstop1h 29m

San Francisco

Sat 29/8

10:37 a.m.-12:12 p.m.

Nonstop1h 35m

C$ 262
Quickest round-trip

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 29/8

1:56 p.m.-3:25 p.m.

Nonstop1h 29m

San Francisco

Sat 12/9

4:40 p.m.-6:11 p.m.

Nonstop1h 31m

C$ 262

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 11/8

8:35 a.m.-1:15 p.m.

1 stop4h 40m

San Francisco

Tue 18/8

4:45 p.m.-8:55 p.m.

1 stop4h 10m

C$ 276

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 15/8

8:00 a.m.-9:27 a.m.

Nonstop1h 27m

San Francisco

Sat 22/8

10:37 a.m.-12:12 p.m.

Nonstop1h 35m

C$ 346

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Sun 16/8

1:06 p.m.-10:34 p.m.

1 stop9h 28m

Vancouver Intl

Sat 22/8

7:24 a.m.-2:53 p.m.

1 stop7h 29m

C$ 444

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Tue 8/9

1:56 p.m.-8:59 p.m.

1 stop7h 03m

Vancouver Intl

Tue 15/9

2:20 p.m.-8:53 p.m.

1 stop6h 33m

C$ 444

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Mon 17/8

1:56 p.m.-8:59 p.m.

1 stop7h 03m

Vancouver Intl

Wed 19/8

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

1 stop5h 12m

C$ 444

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Sat 8/8

1:50 p.m.-8:59 p.m.

1 stop7h 09m

Vancouver Intl

Wed 12/8

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

1 stop5h 12m

C$ 444

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Ontario (average of C$ 416). Flying from Ontario in December will prove the most costly (average of C$ 840). 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: Dallas (160 flights per day), Seattle (130 flights per day) and Atlanta (91 flights per day).

San Francisco
San Francisco
From C$ 264
San Salvador El Salvador Intl
San Salvador El Salvador Intl
From C$ 1,191
Houston Hobby
Houston Hobby
From C$ 240
Dallas/Fort Worth
Dallas/Fort Worth
From C$ 363

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Houston Hobby, with prices starting at C$ 240. Explore other affordable destinations below.

Houston Hobby
Houston Hobby
From C$ 240
San Francisco
San Francisco
From C$ 264
Denver Intl
Denver Intl
From C$ 311
Dallas/Fort Worth
Dallas/Fort Worth
From C$ 363

Browse thousands of different options on Cheapflights for your next trip

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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 19 July 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$ 240 to Houston George Bush Intcntl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 732 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$ 1,225

  • What is the cheapest month to fly from Ontario?

    At the present moment the cheapest month to fly from Ontario is currently February; with December 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$ 400 round trip
    Travel from Ontario to Calgary from C$ 429 round trip
    Travel from Ontario to Toronto from C$ 562 round trip
    Travel from Ontario to Montreal from C$ 667 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!

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