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C$ 124+ 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 9/6. 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
23 Apr — 30 Apr1
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 24 March 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 5/5

10:39 a.m.-1:30 p.m.

Nonstop2h 51m

Seattle/Tacoma Intl

Tue 19/5

8:30 a.m.-11:10 a.m.

Nonstop2h 40m

C$ 270

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 24/4

3:26 p.m.-6:17 p.m.

Nonstop2h 51m

Seattle/Tacoma Intl

Tue 28/4

7:10 a.m.-2:19 p.m.

1 stop7h 09m

C$ 325

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Sun 12/4

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

1 stop4h 48m

Vancouver Intl

Sat 18/4

7:00 a.m.-12:20 p.m.

1 stop5h 20m

C$ 365

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Wed 27/5

1:50 p.m.-11:22 p.m.

1 stop9h 32m

Vancouver Intl

Fri 5/6

8:35 a.m.-8:42 p.m.

1 stop12h 07m

C$ 365

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Tue 21/7

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

1 stop7h 09m

Vancouver Intl

Wed 29/7

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

1 stop5h 12m

C$ 365

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sun 3/5

7:00 a.m.-12:55 p.m.

1 stop5h 55m

Seattle/Tacoma Intl

Sun 10/5

7:05 a.m.-9:45 a.m.

Nonstop2h 40m

C$ 435

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sun 10/5

10:39 a.m.-1:30 p.m.

Nonstop2h 51m

Seattle/Tacoma Intl

Wed 13/5

11:39 a.m.-5:17 p.m.

1 stop5h 38m

C$ 435

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Thu 16/4

6:00 a.m.-1:12 p.m.

1 stop7h 12m

Vancouver Intl

Sun 19/4

7:00 a.m.-12:20 p.m.

1 stop5h 20m

C$ 453

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Sat 18/4

1:34 p.m.-10:56 p.m.

1 stop9h 22m

Vancouver Intl

Sun 19/4

7:00 a.m.-12:20 p.m.

1 stop5h 20m

C$ 453

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 3/9

5:05 p.m.-12:01 a.m.

1 stop6h 56m

Seattle/Tacoma Intl

Tue 8/9

9:40 a.m.-4:14 p.m.

1 stop6h 34m

C$ 462

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

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, April is the cheapest month in which you can book a flight from Ontario (average of C$ 92). Flying from Ontario in August will prove the most costly (average of C$ 148). 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 (113 flights per day), Seattle (110 flights per day) and Phoenix (81 flights per day).

San Francisco
San Francisco
From C$ 302
San Salvador El Salvador Intl
San Salvador El Salvador Intl
From C$ 1,166
Taipei City Taiwan Taoyuan Intl
Taipei City Taiwan Taoyuan Intl
From C$ 1,779
Portland
Portland
From C$ 129

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Portland, with prices starting at C$ 129. Explore other affordable destinations below.

Portland
Portland
From C$ 129
Salt Lake City
Salt Lake City
From C$ 254
San Francisco
San Francisco
From C$ 302
San Salvador El Salvador Intl
San Salvador El Salvador Intl
From C$ 1,166

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 24 March 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$ 129 to Portland (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 778 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$ 1,199

  • What is the cheapest first class flight from Ontario?

    If you’re looking to fly first-class from Ontario to anywhere, put Denver on your list as prices start at C$ 2,602 for this destination.

  • What is the cheapest month to fly from Ontario?

    At the present moment the cheapest month to fly from Ontario is currently April; 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$ 338 round trip
    Travel from Ontario to Calgary from C$ 486 round trip
    Travel from Ontario to Toronto from C$ 556 round trip
    Travel from Ontario to Montreal from C$ 775 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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