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C$ 78+ 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 29/7. 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
8 Jul — 15 Jul1
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 3 July 2025.

Cheapest one-way flight

C$ 75

Cheapest round-trip flight

C$ 91

Cheapest airline

Frontier

Most popular destination

Toronto Pearson Intl (YYZ)

Good round-trip deal

C$ 181 or less

Good one-way deal

C$ 249 or less
The cheapest one-way flight from Ontario is currently to Vancouver Intl.
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The cheapest round-trip flight from Ontario is currently to Vancouver Intl.
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On average, Frontier currently has the cheapest one-way flight from Ontario (avg. price of C$ 105).
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Toronto Pearson Intl (YYZ) is currently the most popular flight destination from Ontario (average round-trip price of C$ 232).
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Price to beat on a round-trip flight from Ontario.
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Price to beat on a one-way flight from Ontario.
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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 3 July 2025.

Wed 23/76:25 a.m.ONT - SEA
Nonstop2h 48mDelta
Tue 29/77:30 a.m.SEA - ONT
Nonstop2h 55mDelta
Deal found 2/7C$ 214
Sat 16/85:21 p.m.ONT - SEA
1 stop6h 21mFrontier
Sat 23/88:27 p.m.SEA - ONT
Nonstop2h 42mFrontier
Deal found 2/7C$ 226
Tue 12/810:03 a.m.ONT - SEA
1 stop4h 22mAlaska Airlines
Tue 19/85:25 a.m.SEA - ONT
1 stop3h 58mAlaska Airlines
Deal found 2/7C$ 240
Wed 6/810:00 a.m.ONT - SEA
1 stop5h 10mSouthwest
Thu 14/85:00 a.m.SEA - ONT
2 stops7h 40mSouthwest
Deal found 3/7C$ 262
Thu 14/86:58 p.m.ONT - SEA
Nonstop2h 39mHawaiian Airlines
Sun 17/89:30 p.m.SEA - ONT
Nonstop2h 45mHawaiian Airlines
Deal found 3/7C$ 268
Mon 4/86:39 p.m.ONT - SEA
1 stop6h 20mUnited Airlines
Wed 6/85:10 a.m.SEA - ONT
1 stop7h 04mUnited Airlines
Deal found 1/7C$ 283
Mon 28/79:41 p.m.ONT - YVR
1 stop14h 59mMultiple Airlines
Mon 11/88:15 a.m.YVR - ONT
2 stops15h 25mMultiple Airlines
Deal found 2/7C$ 298
Fri 15/811:45 a.m.ONT - BTR
1 stop8h 28mDelta
Mon 18/84:38 p.m.BTR - ONT
1 stop7h 42mDelta
Deal found 3/7C$ 394
Wed 13/812:59 a.m.ONT - YYC
1 stop12h 47mMultiple Airlines
Thu 21/89:55 a.m.YYC - ONT
1 stop14h 45mMultiple Airlines
Deal found 1/7C$ 403
Wed 17/98:00 a.m.ONT - YYZ
1 stop8h 58mMultiple Airlines
Tue 23/911:00 a.m.YYZ - ONT
2 stops13h 56mMultiple Airlines
Deal found 1/7C$ 406
Wed 16/71:19 p.m.ONT - YYC
1 stop8h 07mUnited Airlines
Tue 22/77:30 a.m.YYC - ONT
1 stop5h 44mUnited Airlines
Deal found 2/7C$ 431
Sun 13/71:15 p.m.ONT - YYC
1 stop8h 42mDelta
Tue 22/77:55 a.m.YYC - ONT
1 stop9h 34mDelta
Deal found 2/7C$ 435

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 3 July 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

Wed 23/7

6:25 a.m.-9:13 a.m.

Nonstop2h 48m

Seattle/Tacoma Intl

Tue 29/7

7:30 a.m.-10:25 a.m.

Nonstop2h 55m

C$ 214

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 16/8

5:21 p.m.-11:42 p.m.

1 stop6h 21m

Seattle/Tacoma Intl

Sat 23/8

8:27 p.m.-11:09 p.m.

Nonstop2h 42m

C$ 226

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Tue 12/8

10:03 a.m.-2:25 p.m.

1 stop4h 22m

Seattle/Tacoma Intl

Tue 19/8

5:25 a.m.-9:23 a.m.

1 stop3h 58m

C$ 240

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 6/8

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

1 stop5h 10m

Seattle/Tacoma Intl

Thu 14/8

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

2 stops7h 40m

C$ 262

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 30/7

6:58 p.m.-9:37 p.m.

Nonstop2h 39m

Seattle/Tacoma Intl

Sun 3/8

9:30 p.m.-12:15 a.m.

Nonstop2h 45m

C$ 282

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Mon 4/8

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

1 stop6h 20m

Seattle/Tacoma Intl

Wed 6/8

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

1 stop7h 04m

C$ 283

OntarioVancouver

ONT - YVR

ONTYVR

Ontario

Mon 28/7

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

1 stop14h 59m

Vancouver Intl

Mon 11/8

8:15 a.m.-11:40 p.m.

2 stops15h 25m

C$ 298

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Fri 15/8

11:45 a.m.-10:13 p.m.

1 stop8h 28m

Baton Rouge Ryan

Mon 18/8

4:38 p.m.-10:20 p.m.

1 stop7h 42m

C$ 394

OntarioCalgary

ONT - YYC

ONTYYC

Ontario

Wed 13/8

12:59 a.m.-2:46 p.m.

1 stop12h 47m

Calgary

Thu 21/8

9:55 a.m.-11:40 p.m.

1 stop14h 45m

C$ 403

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Wed 17/9

8:00 a.m.-7:58 p.m.

1 stop8h 58m

Toronto Pearson Intl

Tue 23/9

11:00 a.m.-9:56 p.m.

2 stops13h 56m

C$ 406

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

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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.

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 27 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 8 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
China Airlines
China Airlines
From C$ 766
United Airlines
United Airlines
From C$ 322
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: Seattle (126 flights per day), Denver (53 flights per day) and Dallas (52 flights per day).

Denver Intl
Denver Intl
From C$ 133
Dallas/Fort Worth
Dallas/Fort Worth
From C$ 182
Taipei City Taiwan Taoyuan Intl
Taipei City Taiwan Taoyuan Intl
From C$ 766

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$ 181. Explore other affordable destinations below.

Denver Intl
Denver Intl
From C$ 133
Dallas/Fort Worth
Dallas/Fort Worth
From C$ 182
Taipei City Taiwan Taoyuan Intl
Taipei City Taiwan Taoyuan Intl
From C$ 766

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.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

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

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

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

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

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
2,917 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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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 3 July 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$ 181 to Denver (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 793 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$ 310). United Airlines flights from Ontario to Toronto Pearson Intl (C$ 439).

  • 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$ 797
    Fly from Ontario to Taipei City Taiwan Taoyuan Intl Airport starting at C$ 2,802

  • What is the cheapest first class flight from Ontario?

    If you’re looking to fly first-class from Ontario to anywhere, put Dallas on your list as prices start at C$ 2,094 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$ 316 round trip
    Travel from Ontario to Calgary from C$ 398 round trip
    Travel from Ontario to Toronto from C$ 406 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!

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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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