Cheap flights from Ontario to San Francisco from $115
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Francisco departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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One-way
Last minute
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Cheap round-trip flights
These are some of the best round-trip flight deals from Ontario to San Francisco that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to San Francisco.
Cheap last minute flights
Planning a quick getaway from Ontario to San Francisco? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to San Francisco, so you can enjoy a seamless trip without layovers.
Porter Airlines flights from Region of Ontario to San Francisco
Our best Porter Airlines deals on Region of Ontario to San Francisco flight tickets
Porter Airlines![Porter Airlines]()
Feb 21![Porter Airlines]()
Feb 25
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 54m
1 stop
SFO12:39 pmSan Francisco
SFO1:40 pmSan Francisco
7h 55m
1 stop
YUL12:35 amMontreal Pierre Elliott Trudeau Intl
Porter Airlines![Porter Airlines]()
Mar 21![Porter Airlines]()
Mar 24
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
8h 54m
1 stop
SFO12:39 pmSan Francisco
SFO1:40 pmSan Francisco
7h 55m
1 stop
YUL12:35 amMontreal Pierre Elliott Trudeau Intl
Air Canada flights from Region of Ontario to San Francisco
Our best Air Canada deals on Region of Ontario to San Francisco flight tickets
Air Canada![Air Canada]()
Mar 22![Air Canada]()
Apr 2
YOW2:45 pmOttawa
10h 06m
1 stop
SFO9:51 pmSan Francisco
SFO4:35 pmSan Francisco
9h 23m
1 stop
YOW4:58 amOttawa
Air Canada![Air Canada]()
Mar 13![Air Canada]()
Mar 17
YTZ3:25 pmToronto Island
9h 26m
1 stop
SFO9:51 pmSan Francisco
SFO8:30 amSan Francisco
10h 20m
1 stop
YTZ9:50 pmToronto Island
See travel insights to San Francisco from
How to get the cheapest flight ticket from Region of Ontario to San Francisco
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to San Francisco?
If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $354.
What is the cheapest day to depart on your flight to San Francisco?
The cheapest day to depart from Region of Ontario to San Francisco is on a Friday when prices can be found for as low as $459. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $602.
What is the cheapest time of day to depart on your flight to San Francisco?
Our data shows that the cheapest Region of Ontario to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $419. Flights in the afternoon are often more expensive with an average ticket price of $849.
What is the cheapest Ontario to San Francisco flight route?
Fly from Toronto Pearson Intl to San Francisco for the best Ontario - San Francisco flight prices
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from Region of Ontario when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $412 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Region of Ontario for as low as $366 on momondo.
What cabin class options are available on Ontario to San Francisco flights?
There are 4 cabin classes available to choose from on Ontario to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ontario to San Francisco?
WestJet, Air Canada, and Porter Airlines are the most popular carriers operating from Ontario to San Francisco
What airlines fly to San Francisco?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Region of Ontario according to our data. Air Canada is the first choice among our users, with 41% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 8 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.
How many flights depart from Region of Ontario to San Francisco on average per day?
As of February 2025, 19 flights take off from Region of Ontario and land in San Francisco each day. The most common flight departure time for this route is 12:00PM, with 45% of daily flights taking off in the afternoon.
How many flights depart from Region of Ontario to San Francisco on average per week?
The number of flights available between Region of Ontario and San Francisco is 133 per week as of February 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.
Cheap Region of Ontario to San Francisco flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Francisco
Best Price Found | $115 |
|---|---|
Fastest flight time | 5h 31m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
When did momondo last update prices for flights from Ontario to San Francisco Airport?
Prices for flights from Ontario to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Ontario to San Francisco Airport?
The number of operators available for flights from Ontario to San Francisco Airport is 7 as of February 2025.
How old do you have to be to fly from Ontario to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Region of Ontario to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to San Francisco is Boeing 737 MAX 8 (34.58% of total bookings). The next most popular plane models are Boeing 737-800 (28.29%), Embraer 195 E2 (26.02%), and Airbus A220-300 (2.34%).
Best airlines flying from Region of Ontario to San Francisco
Compare and see reviews for airlines that fly from Region of Ontario to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $114 | Free Cancellation | Rating 5.9 48 reviews | |||
| PriceFrom $255 | Free Cancellation | Rating 7.2 2,814 reviews | |||
| PriceFrom $262 | Free Cancellation | Rating 7.8 383 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.9 278 reviews | |||
| PriceFrom $270 | Free Cancellation | Rating 7.4 8,889 reviews | |||
| PriceFrom $321 | Free Cancellation | Rating 7.0 8,651 reviews | |||
| PriceFrom $410 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSanta Cruz
Carmel-by-the-Sea
Hayward
Modesto
South San Francisco
Calistoga
Santa Clara
Fremont
Daly City
Roseville
Sonoma
Berkeley
Bodega Bay
Redwood City
Sunnyvale
Vallejo
Palo Alto
Burlingame
Milpitas
Half Moon Bay
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to San Francisco?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to San Francisco. momondo saves you time and could save you money on your trip.
Can I find flights from Ontario to San Francisco with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to San Francisco from Ontario with this policy.
How can momondo help me find flights from Ontario to San Francisco?
momondo provides multiple filters to help you find the best flight to San Francisco from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Ontario to San Francisco right now. Can momondo alert me if prices change?
Price alerts on flights to San Francisco from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.