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Cheap Flights from Ontario to San Francisco, CA, United States - ONT to SFO

Popular flights from Ontario to San Francisco

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
May 27, 2016 May 29, 2016 $180
American Airlines
Departure Date Return Date Lowest Price
Jun 2, 2016 Jun 6, 2016 $145
United Airlines
Departure Date Return Date Lowest Price
May 17, 2016 May 17, 2016 $135
May 17, 2016 May 21, 2016 $135
May 18, 2016 May 24, 2016 $135
May 21, 2016 May 24, 2016 $135
May 25, 2016 Jun 11, 2016 $135

How Much Does it Cost to Fly from Ontario to San Francisco (ONT to SFO)?

We have collected flight cost data from across the web for travel from Ontario to San Francisco, and have found the average flight price for this trip to be $146.

When Can I Buy the Cheapest Flight from Ontario to San Francisco (ONT to SFO)?

Airlines can adjust prices for plane tickets from Ontario to San Francisco based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Ontario to San Francisco

The chart below shows up-to-date information regarding how far in advance a flight from Ontario to San Francisco should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $366 $374
7-14 days $210 $274
14-21 days $135 $243
21-30 days $135 $223
30-60 days $135 $216
60-90 days $183 $173
90+ days $135 $152

Cheapest Day To Fly from Ontario to San Francisco

The chart below shows up-to-date information regarding the cheapest days to fly from Ontario to San Francisco.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$140 $135 $135 $140 $170 $135 $170

Lowest Fares Chart By Month from Ontario to San Francisco

The chart below shows the lowest fare by month when flying from Ontario to San Francisco.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Ontario San Francisco United 5/17/16 5/17/16 0 $135
June Ontario San Francisco United 6/4/16 6/8/16 0 $135
July Ontario San Francisco United 7/16/16 7/18/16 1 $173
August Ontario San Francisco United 8/29/16 9/7/16 0 $140
September Ontario San Francisco United 9/3/16 9/6/16 0 $135
October Ontario San Francisco United 10/1/16 10/4/16 0 $135
November Ontario San Francisco United 11/17/16 11/19/16 0 $185
December Ontario San Francisco American 12/3/16 12/5/16 1 $162

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Ontario to San Francisco

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Ontario to San Francisco.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$366
8 9 10 11 12 13 14
$366 $215
15 16 17 18 19 20 21
$215 $135
22 23 24 25 26 27 28
$135 $135
29 30 31 1 2 3 4
$135 $145
5 6 7 8 9 10 11
$145

Non-Stop vs Connecting Flights from Ontario to San Francisco (ONT to SFO)

Your Ontario to San Francisco flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Ontario to San Francisco is $219.

The average price for non-stop flights from Ontario to San Francisco is $183.

The chart below shows up to date information regarding non-stop flights from Ontario to San Francisco.

Nonstop Flight Details from Ontario to San Francisco
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
United 8 8 8 8 8 7 7 06:00 20:46

Round Trip vs One Way Flights from Ontario to San Francisco (ONT to SFO)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Ontario to San Francisco. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Ontario to San Francisco is $92.

The average price for round trip flights from Ontario to San Francisco is $183.

More Cheap Flights

FlightsAirlineLowest Price
Los Angeles to San Francisco American, Alaska, United, Virgin America $129
Las Vegas to San Francisco American, Alaska, JetBlue, Frontier, United, Virgin America $67
San Diego to San Francisco American, Alaska, United, Virgin America $145
Santa Ana to San Francisco United $135
Long Beach to San Francisco Alaska, JetBlue, United $103
Palm Springs to San Francisco American, Alaska, United, Virgin America $197
Burbank to San Francisco United $135
Santa Barbara to San Francisco United $340
Bakersfield to San Francisco United $391
San Luis Obispo to San Francisco United $130
Palomar to San FranciscoCheck Dates
Yuma to San Francisco American, Alaska $283
Los Angeles to Oakland Boutique, American, Spirit, United $80
Santa Maria to San Francisco United $367
Las Vegas to Oakland American, JetBlue, Spirit, United $79
San Diego to Oakland American, Alaska, Spirit, United $149
Los Angeles to San Jose American, Alaska, United $135
Los Angeles to Las Vegas American, Spirit, United, Virgin America $71
Long Beach to Oakland JetBlue $113
Santa Ana to Oakland Alaska, United $356
Burbank to Oakland United $1,964
Ontario to Oakland United $1,084
Las Vegas to Los Angeles American, Alaska, Spirit, United, Virgin America $70
Las Vegas to San Jose American, Alaska, United $86
Santa Barbara to Oakland United $436
Los Angeles to Sacramento American, Alaska, JetBlue, United $151
Los Angeles to Santa Rosa American, Alaska, United $177
Los Angeles to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $210
San Diego to San Jose American, Alaska, United $156
Los Angeles to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $147

Airlines Flying from Ontario to San Francisco (ONT to SFO)

Below are the different airlines that fly from Ontario to San Francisco with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Ontario to San Francisco.

Ontario to San Francisco
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHX X X X X X X X
United - X X X X X X X
Southwest PHX X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Ontario and San Francisco, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Ontario to San Francisco Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Ontario to San Francisco?
Answer: The average Ontario to San Francisco flight time is an hour and 29 minutes.
Question: How many miles are there between Ontario and San Francisco?
Answer: The distance from Ontario to San Francisco is 363 miles.
Question: How common are direct flights from Ontario to San Francisco?
Answer: There are 53 direct flights from Ontario to San Francisco.
Question: What is the most popular airline for non-stop flights from Ontario to San Francisco?
Answer: United Airlines provides 100% of the non-stop flights between Ontario and San Francisco.
Question: What are the most popular connecting cities when flying from Ontario to San Francisco?
Answer: Phoenix, AZ
Ontario (ONT) To San Francisco, CA (SFO) Flights: Cheap Flights From Ontario To San Francisco | FareCompare.