Find flights
Deals
Airlines

C$ 71+ Cheap flights from Ontario

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/7. 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
17 Jun — 24 Jun1
1 adult

What to know about flights from Ontario

Discover essential information about flights departing from Ontario, including flight schedules, destinations, airlines operating at the Ontario airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 12 June 2025.

Cheapest one-way flight

C$ 70

Cheapest round-trip flight

C$ 90

Cheapest airline

Frontier

Most popular destination

Toronto Pearson Intl (YYZ)

Good round-trip deal

C$ 258 or less

Good one-way deal

C$ 271 or less
The cheapest one-way flight from Ontario is currently to San Francisco.
Search Deals
The cheapest round-trip flight from Ontario is currently to Vancouver Intl.
Search Deals
On average, Frontier currently has the cheapest one-way flight from Ontario (avg. price of C$ 105).
Search Deals
Toronto Pearson Intl (YYZ) is currently the most popular flight destination from Ontario (average round-trip price of C$ 225).
Search Deals
Price to beat on a round-trip flight from Ontario.
Search Deals
Price to beat on a one-way flight from Ontario.
Search Deals

Find flights from Ontario

Cheapest flights from Ontario
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 12 June 2025.

Tue 26/85:03 p.m.ONT - SEA
Nonstop2h 50mFrontier
Mon 1/91:20 p.m.SEA - ONT
Nonstop2h 54mFrontier
Deal found 10/6C$ 213
Tue 12/86:00 a.m.ONT - SEA
Nonstop2h 42mAlaska Airlines
Tue 12/810:47 a.m.SEA - ONT
Nonstop2h 39mAlaska Airlines
Deal found 12/6C$ 235
Fri 15/86:39 p.m.ONT - SEA
1 stop6h 20mUnited Airlines
Mon 18/85:10 a.m.SEA - ONT
1 stop7h 04mUnited Airlines
Deal found 10/6C$ 275
Thu 7/812:55 p.m.ONT - SEA
1 stop7h 25mSouthwest
Mon 25/85:00 a.m.SEA - ONT
2 stops7h 40mSouthwest
Deal found 11/6C$ 276
Tue 22/76:00 a.m.ONT - SEA
Nonstop2h 42mHawaiian Airlines
Tue 22/710:47 a.m.SEA - ONT
Nonstop2h 39mHawaiian Airlines
Deal found 10/6C$ 343
Fri 11/75:59 p.m.ONT - SEA
Nonstop2h 46mDelta
Sun 13/77:30 a.m.SEA - ONT
Nonstop2h 55mDelta
Deal found 10/6C$ 351
Mon 28/79:41 p.m.ONT - YVR
1 stop14h 59mMultiple Airlines
Tue 5/89:45 a.m.YVR - ONT
1 stop12h 07mMultiple Airlines
Deal found 10/6C$ 358
Tue 15/710:05 p.m.ONT - BTR
1 stop8h 49mDelta
Tue 22/75:15 p.m.BTR - ONT
1 stop7h 12mDelta
Deal found 12/6C$ 395
Tue 24/65:10 a.m.ONT - YYC
1 stop15h 38mUnited Airlines
Fri 27/66:15 a.m.YYC - ONT
1 stop15h 39mUnited Airlines
Deal found 10/6C$ 417
Fri 25/79:41 p.m.ONT - YYC
1 stop12h 32mMultiple Airlines
Fri 1/812:00 p.m.YYC - ONT
2 stops9h 52mMultiple Airlines
Deal found 9/6C$ 451
Mon 23/61:36 p.m.ONT - YVR
1 stop7h 23mUnited Airlines
Thu 26/62:20 p.m.YVR - ONT
1 stop6h 34mUnited Airlines
Deal found 10/6C$ 462
Wed 29/1012:47 p.m.ONT - YYZ
1 stop7h 29mMultiple Airlines
Thu 6/111:30 p.m.YYZ - ONT
2 stops21h 07mMultiple Airlines
Deal found 12/6C$ 474

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 12 June 2025. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Vancouver Intl

Route

Depart

Return

Price

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 26/8

5:03 p.m.-7:53 p.m.

Nonstop2h 50m

Seattle/Tacoma Intl

Mon 1/9

1:20 p.m.-4:14 p.m.

Nonstop2h 54m

C$ 213

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 12/8

6:00 a.m.-8:42 a.m.

Nonstop2h 42m

Seattle/Tacoma Intl

Tue 12/8

10:47 a.m.-1:26 p.m.

Nonstop2h 39m

C$ 235

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 13/9

5:51 p.m.-8:50 p.m.

Nonstop2h 59m

Seattle/Tacoma Intl

Sat 20/9

7:55 p.m.-10:42 p.m.

Nonstop2h 47m

C$ 242

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Fri 15/8

6:39 p.m.-12:59 a.m.

1 stop6h 20m

Seattle/Tacoma Intl

Mon 18/8

5:10 a.m.-12:14 p.m.

1 stop7h 04m

C$ 275

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 7/8

12:55 p.m.-8:20 p.m.

1 stop7h 25m

Seattle/Tacoma Intl

Mon 25/8

5:00 a.m.-12:40 p.m.

2 stops7h 40m

C$ 276

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 22/7

6:00 a.m.-8:42 a.m.

Nonstop2h 42m

Seattle/Tacoma Intl

Tue 22/7

10:47 a.m.-1:26 p.m.

Nonstop2h 39m

C$ 343

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Mon 28/7

9:41 p.m.-12:40 p.m.

1 stop14h 59m

Vancouver Intl

Tue 5/8

9:45 a.m.-9:52 p.m.

1 stop12h 07m

C$ 358

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Tue 15/7

10:05 p.m.-8:54 a.m.

1 stop8h 49m

Baton Rouge Ryan

Tue 22/7

5:15 p.m.-10:27 p.m.

1 stop7h 12m

C$ 395

OntarioCalgary

ONT - YYC

ONTYYC

Ontario

Tue 24/6

5:10 a.m.-9:48 p.m.

1 stop15h 38m

Calgary

Fri 27/6

6:15 a.m.-8:54 p.m.

1 stop15h 39m

C$ 417

OntarioCalgary

ONT - YYC

ONTYYC

Ontario

Fri 25/7

9:41 p.m.-11:13 a.m.

1 stop12h 32m

Calgary

Fri 1/8

12:00 p.m.-8:52 p.m.

2 stops9h 52m

C$ 451

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 60 results
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.

When is the best time to book a flight from Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Vancouver Intl. Price data was last updated on 9 June 2025.

The price you pay for your flight from Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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$ 93). Flying from Ontario in December will prove the most costly (average of C$ 154). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Ontario?

For flights departing from Ontario check dates and pricing for the following: Air Canada. This airline departs to the following popular destinations: Vancouver.

Frontier
Frontier
From C$ 41
United Airlines
United Airlines
From C$ 322
China Airlines
China Airlines
From C$ 808
Air Canada
Air Canada
From C$ 227

What are popular destinations to fly to from Ontario?

From Ontario you can expect to find greater availability for the following destinations: Dallas (131 flights per day), Seattle (113 flights per day) and Atlanta (82 flights per day).

Seattle/Tacoma Intl
Seattle/Tacoma Intl
From C$ 186
Denver Intl
Denver Intl
From C$ 84
San Francisco
San Francisco
From C$ 429
Dallas/Fort Worth
Dallas/Fort Worth
From C$ 186

What is the cheapest place to fly to from Ontario?

The cheapest city to fly to from Ontario is Denver Intl, with prices starting at C$ 115. Explore other affordable destinations below.

Denver Intl
Denver Intl
From C$ 84
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From C$ 182
Dallas/Fort Worth
Dallas/Fort Worth
From C$ 186
Seattle/Tacoma Intl
Seattle/Tacoma Intl
From C$ 186

Airline reviews for flights from Ontario

Get insights into the airlines that provide service from Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Ontario. In the last 7 days, Cheapflights users made a total of 629,999 searches.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
WestJet
7.2
Good
2,868 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 12 June 2025.

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

    This month, the top selected destinations from Ontario are Denver, Dallas/Fort Worth Airport, Guadalajara. Throughout the year, Dallas/Fort Worth Airport, Denver, Guadalajara 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$ 115 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 718 to fly from Ontario.

  • What are the cheapest airlines flying from Ontario to anywhere?

    According to our data, users have found Frontier, Air Canada, and United Airlines to have the cheapest round-trip prices from Ontario. Some of the destinations and prices are as follows: Frontier flights from Ontario to Las Vegas Harry Reid Intl (C$ 56). Air Canada flights from Ontario to Vancouver Intl (C$ 311). United Airlines flights from Ontario to Toronto Pearson Intl (C$ 441).

  • 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 Seattle starting at C$ 800
    Fly from Ontario to Taipei City Taiwan Taoyuan Intl Airport starting at C$ 2,811

  • What is the cheapest first class flight from Ontario?

    If you’re looking to fly first-class from Ontario to anywhere, put Charlotte on your list as prices start at C$ 1,547 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 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$ 327 round trip
    Travel from Ontario to Calgary from C$ 387 round trip
    Travel from Ontario to Toronto from C$ 503 round trip
    Travel from Ontario to Montreal from C$ 734 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.