C$ 46+ 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 1/8. 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.
Non-stop flights from Ontario
Cheapest flights from OntarioExplore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 7 May 2025.
Explore the most affordable flight options available from Ontario. Find the lowest fares based on data from user searches, with prices last updated on 7 May 2025.
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 7 May 2025.
Fly to
Route
Depart
Return
Price
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Tue 10/6
6:00 a.m.-7:27 a.m.
Nonstop1h 27m
San Francisco
Tue 10/6
10:45 a.m.-12:14 p.m.
Nonstop1h 29m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Fri 11/7
9:41 p.m.-11:14 p.m.
Nonstop1h 33m
San Francisco
Mon 11/8
10:11 p.m.-11:40 p.m.
Nonstop1h 29m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Fri 1/8
9:41 p.m.-11:14 p.m.
Nonstop1h 33m
OntarioSan Francisco
ONT - SFO
ONTSFO
Ontario
Tue 13/5
6:00 a.m.-7:27 a.m.
Nonstop1h 27m
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.
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.
Food
Crew
Boarding
Entertainment
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Food
Crew
Boarding
Entertainment
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Food
Crew
Boarding
Entertainment
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Food
Crew
Boarding
Entertainment
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Food
Crew
Boarding
Entertainment
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO
Food
Crew
Boarding
Entertainment
Overall
Comfort
Reviews
James,Apr 2025
LAX - SFO