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C$ 106+ Direct 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 17/3. 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
16 Mar — 23 Mar1
1 adult
1 adult, Economy, 0 bags

Non-stop flights from Ontario

Enter your travel dates to find the best prices.

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 14 February 2026.

Mon 16/36:37 p.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Wed 18/39:30 p.m.
SFO
-
ONT
Nonstop1h 27m
United Airlines
Deal found 12/2C$ 204
Tue 10/36:15 a.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Tue 10/310:50 a.m.
SFO
-
ONT
Nonstop1h 28m
United Airlines
Deal found 11/2C$ 207
Wed 22/411:05 a.m.
ONT
-
SFO
Nonstop1h 29m
United Airlines
Wed 22/49:09 p.m.
SFO
-
ONT
Nonstop1h 36m
United Airlines
Deal found 13/2C$ 211
Tue 10/31:40 p.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Tue 17/34:13 p.m.
SFO
-
ONT
Nonstop1h 28m
United Airlines
Deal found 11/2C$ 214
Thu 19/36:37 p.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Mon 23/39:30 p.m.
SFO
-
ONT
Nonstop1h 27m
United Airlines
Deal found 13/2C$ 233
Mon 13/46:00 a.m.
ONT
-
SFO
Nonstop1h 29m
United Airlines
Wed 15/49:09 p.m.
SFO
-
ONT
Nonstop1h 36m
United Airlines
Deal found 14/2C$ 238
Wed 18/31:40 p.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Sun 22/39:30 p.m.
SFO
-
ONT
Nonstop1h 27m
United Airlines
Deal found 10/2C$ 242
Tue 24/36:15 a.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Wed 1/410:44 a.m.
SFO
-
ONT
Nonstop1h 30m
United Airlines
Deal found 11/2C$ 255
Wed 4/36:37 p.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Fri 6/39:30 p.m.
SFO
-
ONT
Nonstop1h 27m
United Airlines
Deal found 10/2C$ 256
Thu 30/710:10 a.m.
ONT
-
SFO
Nonstop1h 33m
Frontier
Sat 1/87:50 a.m.
SFO
-
ONT
Nonstop1h 23m
Frontier
Deal found 12/2C$ 259
Wed 11/36:15 a.m.
ONT
-
SFO
Nonstop1h 33m
United Airlines
Sat 14/310:50 a.m.
SFO
-
ONT
Nonstop1h 28m
United Airlines
Deal found 13/2C$ 264

Find direct flights from Ontario within your budget

 
Use the slider to find direct flights from Ontario within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 629,999 searches. This data was last updated on 14 February 2026.

Fly to

Vancouver Intl

Route

Depart

Return

Price

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 24/3

6:15 a.m.-7:48 a.m.

Nonstop1h 33m

San Francisco

Tue 24/3

10:50 a.m.-12:18 p.m.

Nonstop1h 28m

C$ 207

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 24/3

6:15 a.m.-7:48 a.m.

Nonstop1h 33m

San Francisco

Wed 25/3

9:30 p.m.-10:57 p.m.

Nonstop1h 27m

C$ 214

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Wed 13/5

1:30 p.m.-3:00 p.m.

Nonstop1h 30m

San Francisco

Wed 13/5

9:23 p.m.-10:59 p.m.

Nonstop1h 36m

C$ 214

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 17/3

6:15 a.m.-7:48 a.m.

Nonstop1h 33m

San Francisco

Tue 17/3

9:30 p.m.-10:57 p.m.

Nonstop1h 27m

C$ 214

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Tue 10/3

6:15 a.m.-7:48 a.m.

Nonstop1h 33m

San Francisco

Tue 17/3

10:50 a.m.-12:18 p.m.

Nonstop1h 28m

C$ 214

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Wed 6/5

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

Nonstop1h 29m

San Francisco

Tue 12/5

8:10 a.m.-9:41 a.m.

Nonstop1h 31m

C$ 214

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Thu 16/4

6:49 p.m.-8:18 p.m.

Nonstop1h 29m

San Francisco

Sat 18/4

8:25 a.m.-10:08 a.m.

Nonstop1h 43m

C$ 233

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Wed 29/4

11:05 a.m.-12:34 p.m.

Nonstop1h 29m

San Francisco

Sun 3/5

8:10 a.m.-9:41 a.m.

Nonstop1h 31m

C$ 242

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Fri 13/3

6:15 a.m.-7:48 a.m.

Nonstop1h 33m

San Francisco

Wed 18/3

9:30 p.m.-10:57 p.m.

Nonstop1h 27m

C$ 242

OntarioSan Francisco

ONT - SFO

ONTSFO

Ontario

Wed 4/3

6:37 p.m.-8:10 p.m.

Nonstop1h 33m

San Francisco

Fri 6/3

9:30 p.m.-10:57 p.m.

Nonstop1h 27m

C$ 256

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/2

Showing 1-10 of 18 results
1
2

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.

Reviews of airlines flying non-stop to Ontario

Get insights into the airlines that provide direct flights 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 an airline for your flight from Ontario. Reviews last updated Cheapflights.
Get a feel of what it's like to fly with Alaska 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
11,882 reviews
Check prices

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,882 reviews
Alaska Airlines
8.0
Very good
11,882 reviews
Check prices

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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