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Uncover the best deals on Ontario to San Francisco flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest ONT - SFO Flights
Useful information for finding best airline tickets from Ontario International to San Francisco International on your next trip.
Cheapest Round Trip Flight
$121
Southwest Airlines
• 1 stop
• 7h 10m
Nov 09 – Nov 09
The cheapest round trip flight from Ontario to San Francisco (ONT-SFO-ONT) is currently $121
Cheapest Direct Flight
$135
United Airlines
• nonstop
• 2h 10m
Nov 09
The cheapest nonstop flight from Ontario to San Francisco (ONT-SFO) is currently $135
Fastest Flight
2h 10m
The fastest nonstop flight from Ontario to San Francisco (ONT-SFO) takes 2h 10m
Top Airlines Flying from Ontario to San Francisco
Latest Flight Deals from Ontario (ONT) to San Francisco (SFO)
Compare and book low fare round-trip air tickets from Ontario to San Francisco. Ideal for travelers with confirmed return itineraries.
Nov 09 - Nov 09, Economy
Ontario → San Francisco
7h 10m
7:00 AM - 11:30 AM • 1 stop
Ontario → San Francisco
7h 10m
5:30 PM - 10:00 PM • 1 stop
Southwest Airlines
Nov 09 - Nov 09, Economy
Ontario → San Francisco
2h 10m
1:35 PM - 3:05 PM • nonstop
Ontario → San Francisco
2h 15m
5:42 PM - 7:17 PM • nonstop
United Airlines
Nov 09 - Nov 09, Economy
Ontario → San Francisco
9h 19m
12:02 PM - 6:01 PM • 1 stop
Ontario → San Francisco
2h 9m
8:08 PM - 9:37 PM • nonstop
Alaska Airlines
Nov 09 - Nov 09, Economy
Ontario → San Francisco
16h 41m
6:00 AM - 4:01 PM • 1 stop
Ontario → San Francisco
2h 9m
6:20 PM - 7:49 PM • nonstop
Alaska Airlines
Oct 30 - Oct 31, Economy
Ontario → San Francisco
7h 35m
8:40 AM - 1:35 PM • 1 stop
Ontario → San Francisco
2h 5m
12:40 PM - 2:05 PM • nonstop
Southwest Airlines
Flying to San Francisco soon? We've surfaced some of the most affordable last-minute flights from Ontario to San Francisco, ideal for urgent plans or spontaneous trips.
Looking for the fastest way to San Francisco? These direct flight options from ONT to SFO offer both convenience and value—no layovers, just straight to your destination.
Nov 09 - Nov 09, Economy
Ontario → San Francisco
2h 10m
1:35 PM - 3:05 PM • nonstop
Ontario → San Francisco
2h 15m
5:42 PM - 7:17 PM • nonstop
United Airlines
Nov 09 - Nov 09, Economy
Ontario → San Francisco
2h 10m
6:00 AM - 7:30 AM • nonstop
Ontario → San Francisco
2h 16m
10:15 AM - 11:51 AM • nonstop
United Airlines
Oct 30 - Oct 30, Economy
Ontario → San Francisco
2h 10m
6:00 AM - 7:30 AM • nonstop
Ontario → San Francisco
2h 11m
10:50 PM - 12:21 AM • nonstop
United Airlines
Oct 30 - Oct 30, Economy
Ontario → San Francisco
2h 10m
9:25 AM - 10:55 AM • nonstop
Ontario → San Francisco
2h 11m
10:50 PM - 12:21 AM • nonstop
United Airlines
Oct 30 - Oct 30, Economy
Ontario → San Francisco
2h 13m
4:17 PM - 5:50 PM • nonstop
Ontario → San Francisco
2h 11m
10:50 PM - 12:21 AM • nonstop
United Airlines
FAQs on Ontario to San Francisco Flights
What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SFO?
The most popular airline flying from Ontario to San Francisco are
Can I fly from ONT to SFO non-stop?
Yes, you can fly ONT to SFO non-stop on
Which airlines fly nonstop between Ontario and San Francisco?
The non-stop flights between Ontario and San Francisco are .
What’s the earliest departure time from ONT to SFO Airport?
The earliest flight leaves ONT at 6:00 am and lands in SFO - San Francisco International
What are the airports in San Francisco?
SFO
Can I make changes to my Ontario to San Francisco flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to SFO?
Read the fare rules of the Ontario to San Francisco air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and San Francisco?
operate flights between Ontario and San Francisco
How long does a flight from Ontario to San Francisco take?
It takes approximately 1 hour to fly non-stop from ONT to SFO, which is 363.46 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Francisco (SFO) ?
In the past couple of days, the cheapest tickets to SFO from ONT were found on UA : USD 135
Do I need a passport to fly between ONT and SFO?
No
What’s the latest departure time from ONT to SFO ?
The last flight leaves ONT at 5:03 pm
Hotels in San Francisco (SFO)
5 hotels near San Francisco International — compare rates from top booking sites.
5-star hotel
The Ritz Carlton, Half Moon Bay
📍 One Miramonte Point Rd., Half Moon Bay, California 94109
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5-star hotel
The Ritz-Carlton, Half Moon Bay
📍 1 Miramontes Point Rd, Half Moon Bay, California 94019
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5-star hotel
Rosewood Sand Hill
📍 2825 Sand Hill Road, Menlo Park, California 94025
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5-star hotel
Sofitel San Francisco Bay
📍 223 Twin Dolphin Dr, Redwood City, California 94065
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5-star hotel
Clift
📍 495 Geary St, San Francisco, California 94102
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Hotel Deals in San Francisco (CA)
No chain
The Mosser Hotel
8.1/10
★★★☆☆
Hotel
166.0 rooms
✓ Free WiFi
📍 54 4th Street, San Francisco (CA), California
At The Mosser Hotel, exceptional service and top-notch amenities create a memorable experience for guests. Complimentary internet access is available in the hotel to ensure you stay connected during …
Check-in 03:00 PM · Check-out 11:00 AM
$79/night
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No chain
Embassy Hotel
6.9/10
★★★☆☆
Hotel
84.0 rooms
✓ Free WiFi
📍 610 Polk Street, San Francisco (CA), California
At Embassy Hotel, exceptional service and top-notch amenities create a memorable experience for guests. Complimentary internet access is available in the hotel to ensure you stay connected during you…
Check-in 03:00 PM · Check-out 12:00 PM
$82/night
View Deal
Independent
SoMa House
7.7/10
★★★★☆
Hotel
152.0 rooms
✓ Free WiFi
📍 121 7th St, San Francisco, CA, San Francisco (CA), California
Check-in 04:00 PM · Check-out 11:00 AM
$96/night
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No chain
Grant Plaza Hotel
7.8/10
★★☆☆☆
Hotel
71.0 rooms
✓ Free WiFi
📍 465 Grant Avenue, San Francisco (CA), California
At Grant Plaza Hotel, exceptional service and top-notch amenities create a memorable experience for guests. Complimentary internet access is available in the hotel to ensure you stay connected during…
Check-in 02:30 PM · Check-out 12:00 PM
$97/night
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No chain
Warfield Hotel
6.3/10
★★★☆☆
Inn
45.0 rooms
✓ Free WiFi
📍 118 Taylor Street, San Francisco (CA), California
At Warfield Hotel, exceptional service and top-notch amenities create a memorable experience for guests.Complimentary internet access is available in the inn to ensure you stay connected during your …
Check-in 03:00 PM · Check-out 11:00 AM
$100/night
View Deal
No chain
The Bartlett Hotel and Guesthouse
7.9/10
★★★☆☆
Hotel
100.0 rooms
✓ Free WiFi
📍 240 O'Farrell Street, San Francisco (CA), California
The Bartlett Hotel and Guesthouse provides flawless service and all the necessary facilities for visitors.Stay connected with your associates, as complimentary Wi-Fi is available during your entire v…
$102/night
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No chain
Union Square Plaza Hotel
7.6/10
★★☆☆☆
Hotel
72.0 rooms
✓ Free WiFi
📍 432 Geary Street, San Francisco (CA), California
Union Square Plaza Hotel offers top-notch services and amenities, ensuring guests experience utmost comfort. Share your photos and respond to emails at your convenience, thanks to the free Wi-Fi inte…
Check-in 03:00 PM · Check-out 11:00 AM
$104/night
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No chain
SF Plaza Hotel
7.3/10
★★★☆☆
Hotel
📍 510 Bush Street, San Francisco (CA), California
At SF Plaza Hotel, exceptional service and top-notch amenities create a memorable experience for guests.Continuously receive the support you require through front desk amenities such as concierge ser…
$107/night
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Choice Hotels
Comfort Inn & Suites San Francisco Airport North
8.0/10
★★★☆☆
Hotel
168.0 rooms
✓ Free WiFi
✓ Breakfast
📍 121 East Grand Avenue, San Francisco (CA), California
Experience an abundance of unparalleled facilities and features at Comfort Inn & Suites San Francisco Airport North. Share your photos and respond to emails at your convenience, thanks to the free Wi…
Check-in 3:00 PM · Check-out 11:00 AM
$109/night
View Deal
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Ontario (ONT) to San Francisco (SFO): Airport Information
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | San Francisco International , San Francisco, US |
| Distance | 363 miles |
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