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C$ 94+ 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 19/8. 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
28 May — 4 Jun1
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 28 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

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 2/6

3:30 p.m.-9:00 p.m.

1 stop5h 30m

Seattle/Tacoma Intl

Tue 9/6

5:15 a.m.-12:55 p.m.

2 stops7h 40m

C$ 303

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 27/5

3:35 p.m.-10:25 p.m.

1 stop6h 50m

Seattle/Tacoma Intl

Wed 3/6

12:30 p.m.-3:09 p.m.

Nonstop2h 39m

C$ 337
Quickest round-trip

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Thu 28/5

1:50 p.m.-3:15 p.m.

Nonstop1h 25m

San Francisco

Mon 1/6

9:00 p.m.-10:37 p.m.

Nonstop1h 37m

C$ 337

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 30/5

6:00 a.m.-7:25 a.m.

Nonstop1h 25m

San Francisco

Mon 1/6

9:00 p.m.-10:37 p.m.

Nonstop1h 37m

C$ 338

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 3/6

4:57 p.m.-12:10 a.m.

1 stop7h 13m

Seattle/Tacoma Intl

Tue 9/6

8:25 a.m.-11:17 a.m.

Nonstop2h 52m

C$ 357

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 19/5

6:00 a.m.-7:29 a.m.

Nonstop1h 29m

San Francisco

Mon 25/5

9:00 p.m.-10:37 p.m.

Nonstop1h 37m

C$ 359

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 29/5

1:35 p.m.-4:35 p.m.

Nonstop3h 00m

Seattle/Tacoma Intl

Sun 14/6

5:30 a.m.-12:10 p.m.

1 stop6h 40m

C$ 378

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 6/6

3:00 p.m.-11:30 p.m.

1 stop8h 30m

San Francisco

Mon 8/6

5:00 a.m.-11:20 a.m.

2 stops6h 20m

C$ 391

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Sat 8/8

5:40 a.m.-11:35 a.m.

1 stop5h 55m

San Francisco

Mon 17/8

5:10 a.m.-1:25 p.m.

2 stops8h 15m

C$ 397

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Thu 18/6

6:00 a.m.-7:25 a.m.

Nonstop1h 25m

San Francisco

Sun 21/6

9:00 p.m.-10:37 p.m.

Nonstop1h 37m

C$ 408

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/4

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$ 398). Flying from Ontario in December will prove the most costly (average of C$ 817). 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 (114 flights per day), Dallas (109 flights per day) and Atlanta (97 flights per day).

San Francisco
San Francisco
From C$ 300
San Salvador El Salvador Intl
San Salvador El Salvador Intl
From C$ 1,158
Salt Lake City
Salt Lake City
From C$ 192
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From C$ 60

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$ 60. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From C$ 60
Portland
Portland
From C$ 128
Salt Lake City
Salt Lake City
From C$ 192
San Francisco
San Francisco
From C$ 300

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 28 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$ 60 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 433 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$ 1,191

  • 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$ 387 round trip
    Travel from Ontario to Toronto from C$ 429 round trip
    Travel from Ontario to Calgary from C$ 469 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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