$34 Flight Deals from San Francisco to Ontario International Airport

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Stops

Nonstop

from $69

Up to 1 stop

$120

Up to 2 stops

$603

Airlines

Alaska Airlines

$261

American Airlines

$227

Delta Air Lines

$1214

Frontier Airlines

$69

Hawaiian Airlines

$289

United Airlines

$111

Cabin Class

Economy

$69

Departure Airports

San Francisco International Airport

$69

Arrival Airports

Ontario International Airport

$69

Layover Airports

Dallas Fort Worth International Airport

$189

Denver International Airport

$120

Harry Reid International Airport

$129

Phoenix Sky Harbor International Airport

$227

Portland International Airport

$395

Sacramento International Airport

$1689

Salt Lake City International Airport

$650

San Diego International Airport

$603

Seattle Tacoma International Airport

$261

Best Price. GUARANTEED.

Exclusively for Priceline Members
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On average save $240 per traveler

Frontier Airlines

05/02/25

8:34am

SFO

1h 28m

Direct

05/02/25

10:02am

ONT

Frontier Airlines

05/12/25

8:24am

ONT

1h 38m

Direct

05/12/25

10:02am

SFO

^$69

Free cancellation within 83 hours of booking

Frontier Airlines

05/05/25

8:34am

SFO

1h 28m

Direct

05/05/25

10:02am

ONT

Frontier Airlines

05/12/25

8:24am

ONT

1h 38m

Direct

05/12/25

10:02am

SFO

^$69

Free cancellation within 83 hours of booking

Frontier Airlines

05/01/25

8:34am

SFO

1h 28m

Direct

05/01/25

10:02am

ONT

Frontier Airlines

05/05/25

8:24am

ONT

1h 38m

Direct

05/05/25

10:02am

SFO

^$69

Free cancellation within 83 hours of booking

United Airlines

05/03/25

10:54am

SFO

1h 30m

Direct

05/03/25

12:24pm

ONT

United Airlines

05/03/25

1:45pm

ONT

1h 28m

Direct

05/03/25

3:13pm

SFO

^$111

Free cancellation within 83 hours of booking

United Airlines

05/08/25

10:54am

SFO

1h 30m

Direct

05/08/25

12:24pm

ONT

United Airlines

05/14/25

3:10pm

ONT

1h 43m

Direct

05/14/25

4:53pm

SFO

^$116

Free cancellation within 83 hours of booking

United Airlines

05/17/25

7:05pm

SFO

1h 29m

Direct

05/17/25

8:34pm

ONT

United Airlines

05/24/25

6:41pm

ONT

1h 27m

Direct

05/24/25

8:08pm

SFO

^$116

Free cancellation within 83 hours of booking

Frontier Airlines

04/26/25

4:10pm

SFO

7h 49m

DEN

04/26/25

11:59pm

ONT

Frontier Airlines

04/27/25

8:10am

ONT

1h 41m

Direct

04/27/25

9:51am

SFO

^$120

Free cancellation within 83 hours of booking

Frontier Airlines

05/17/25

10:48am

SFO

1h 27m

Direct

05/17/25

12:15pm

ONT

Frontier Airlines

05/24/25

5:15pm

ONT

4h 4m

LAS

05/24/25

9:19pm

SFO

^$129

Free cancellation within 83 hours of booking

Frontier Airlines

05/04/25

11:02am

SFO

4h 37m

LAS

05/04/25

3:39pm

ONT

Frontier Airlines

05/05/25

8:24am

ONT

1h 38m

Direct

05/05/25

10:02am

SFO

^$139

Free cancellation within 83 hours of booking

Frontier Airlines

04/26/25

1:45pm

SFO

7h 38m

LAS

04/26/25

9:23pm

ONT

Frontier Airlines

04/27/25

8:10am

ONT

1h 41m

Direct

04/27/25

9:51am

SFO

^$139

Free cancellation within 83 hours of booking

Frontier Airlines

05/04/25

8:34am

SFO

1h 28m

Direct

05/04/25

10:02am

ONT

Frontier Airlines

05/05/25

12:26pm

ONT

11h 43m

DEN

05/06/25

12:09am

SFO

^$140

Free cancellation within 83 hours of booking

Frontier Airlines

05/15/25

8:34am

SFO

1h 28m

Direct

05/15/25

10:02am

ONT

Frontier Airlines

05/22/25

12:08am

ONT

8h 39m

DEN

05/22/25

8:47am

SFO

^$149

Free cancellation within 83 hours of booking

Frontier Airlines

04/26/25

1:45pm

SFO

7h 38m

LAS

04/26/25

9:23pm

ONT

Frontier Airlines

04/27/25

8:44am

ONT

14h 24m

DFW

04/27/25

11:08pm

SFO

^$189

Free cancellation within 83 hours of booking

American Airlines

05/07/25

6:00am

SFO

5h 50m

PHX

05/07/25

11:50am

ONT

American Airlines

05/10/25

10:30pm

ONT

1h 28m

Direct

05/10/25

11:58pm

SFO

^$227

Free cancellation within 83 hours of booking

American Airlines

05/04/25

3:54pm

SFO

6h 4m

PHX

05/04/25

9:58pm

ONT

American Airlines

05/07/25

9:20am

ONT

1h 32m

Direct

05/07/25

10:52am

SFO

^$247

Free cancellation within 83 hours of booking

American Airlines

05/07/25

12:04pm

SFO

6h 19m

PHX

05/07/25

6:23pm

ONT

American Airlines

05/10/25

10:00am

ONT

6h 3m

PHX

05/10/25

4:03pm

SFO

^$258

Free cancellation within 83 hours of booking

Alaska Airlines

04/26/25

6:30am

SFO

9h 2m

SEA

04/26/25

3:32pm

ONT

Alaska Airlines

05/03/25

4:29pm

ONT

5h 44m

SEA

05/03/25

10:13pm

SFO

^$261

Free cancellation within 83 hours of booking

Hawaiian Airlines

04/26/25

6:30am

SFO

9h 2m

SEA

04/26/25

3:32pm

ONT

Hawaiian Airlines

05/03/25

4:29pm

ONT

5h 44m

SEA

05/03/25

10:13pm

SFO

^$289

Free cancellation within 83 hours of booking

Alaska Airlines

05/01/25

7:00am

SFO

8h 32m

SEA

05/01/25

3:32pm

ONT

Alaska Airlines

05/08/25

6:00am

ONT

7h 32m

SEA

05/08/25

1:32pm

SFO

^$301

Free cancellation within 83 hours of booking

Alaska Airlines

05/12/25

9:10am

SFO

8h 20m

SEA

05/12/25

5:30pm

ONT

Alaska Airlines

05/19/25

5:55pm

ONT

5h 26m

PDX

05/19/25

11:21pm

SFO

^$395

Free cancellation within 83 hours of booking

Hawaiian Airlines

05/12/25

8:00am

SFO

9h 30m

SEA

05/12/25

5:30pm

ONT

Hawaiian Airlines

05/19/25

5:55pm

ONT

5h 26m

PDX

05/19/25

11:21pm

SFO

^$423

Free cancellation within 83 hours of booking

Hawaiian Airlines

05/15/25

8:00am

SFO

7h 50m

SEA

05/15/25

3:50pm

ONT

Hawaiian Airlines

05/22/25

7:30am

ONT

8h 55m

PDX

05/22/25

4:25pm

SFO

^$478

Free cancellation within 83 hours of booking

Alaska Airlines

05/03/25

8:00am

SFO

7h 32m

SEA

05/03/25

3:32pm

ONT

Alaska Airlines

05/04/25

8:05am

ONT

6h 14m

LAS

SAN

05/04/25

2:19pm

SFO

^$603

Free cancellation within 83 hours of booking

United Airlines

04/20/25

1:20pm

SFO

1h 30m

Direct

04/20/25

2:50pm

ONT

United Airlines

04/26/25

5:00am

ONT

10h 33m

DEN

SLC

04/26/25

3:33pm

SFO

^$650

Free cancellation within 83 hours of booking

United Airlines

04/20/25

11:12am

SFO

9h 30m

DEN

04/20/25

8:42pm

ONT

United Airlines

04/26/25

5:00am

ONT

10h 33m

DEN

SLC

04/26/25

3:33pm

SFO

^$971

Free cancellation within 83 hours of booking

Delta Air Lines

04/21/25

10:04am

SFO

6h 29m

SLC

04/21/25

4:33pm

ONT

Delta Air Lines

04/28/25

5:15pm

ONT

6h 53m

SLC

04/29/25

12:08am

SFO

^$1214

Free cancellation within 83 hours of booking

Delta Air Lines

04/19/25

5:12pm

SFO

4h 53m

SLC

04/19/25

10:05pm

ONT

Delta Air Lines

04/26/25

6:00am

ONT

6h 35m

SLC

04/26/25

12:35pm

SFO

^$1214

Free cancellation within 83 hours of booking

Delta Air Lines

05/01/25

5:55am

SFO

6h 21m

SLC

05/01/25

12:16pm

ONT

Delta Air Lines

05/08/25

6:00am

ONT

6h 40m

SLC

05/08/25

12:40pm

SFO

^$1242

Free cancellation within 83 hours of booking

United Airlines

05/04/25

12:55pm

SFO

1h 30m

Direct

05/04/25

2:25pm

ONT

United Airlines

05/05/25

4:35pm

ONT

19h 45m

SMF

05/06/25

12:20pm

SFO

^$1689

Free cancellation within 83 hours of booking

United Airlines

04/27/25

10:40am

SFO

1h 35m

Direct

04/27/25

12:15pm

ONT

United Airlines

04/28/25

8:20am

ONT

8h 45m

SMF

04/28/25

5:05pm

SFO

^$1689

Free cancellation within 83 hours of booking

Top Deals on flights from San Francisco to Ontario International Airport

San Francisco, US (SFO) - Los Angeles, US (LAX)

Frontier Airlines

Apr 26

8:35am

SFO

1h 28m

Direct

Apr 26

10:03am

ONT

as low as

$34

San Francisco, US (SFO) - Los Angeles, US (LAX)

CitizenPlane

May 11

8:34am

SFO

1h 28m

Direct

May 11

10:02am

ONT

as low as

$41

San Francisco, US (SFO) - Los Angeles, US (LAX)

United Airlines

May 5

12:55pm

SFO

1h 30m

Direct

May 5

2:25pm

ONT

as low as

$58

San Francisco, US (SFO) - Los Angeles, US (LAX)

Frontier Airlines

Apr 22

3:33pm

SFO

8h 26m

DEN

Apr 22

11:59pm

ONT

as low as

$84

San Francisco, US (SFO) - Los Angeles, US (LAX)

American Airlines

Apr 19

7:50am

SFO

4h 9m

PHX

Apr 19

11:59am

ONT

as low as

$99

San Francisco, US (SFO) - Los Angeles, US (LAX)

Frontier Airlines

Apr 28

10:41am

SFO

4h 58m

LAS

Apr 28

3:39pm

ONT

as low as

$104

San Francisco, US (SFO) - Los Angeles, US (LAX)

Alaska Airlines

May 14

2:30pm

SFO

5h 59m

SEA

May 14

8:29pm

ONT

as low as

$131

San Francisco, US (SFO) - Los Angeles, US (LAX)

Delta Air Lines

May 13

4:35pm

SFO

SEA

May 13

10:35pm

ONT

as low as

$131

San Francisco, US (SFO) - Los Angeles, US (LAX)

Hawaiian Airlines

May 3

8:00am

SFO

7h 32m

SEA

May 3

3:32pm

ONT

as low as

$145

San Francisco, US (SFO) - Los Angeles, US (LAX)

Southwest Airlines

Apr 20

6:30am

SFO

9h 30m

SAN

OAK

Apr 20

4:00pm

ONT

as low as

$163

San Francisco, US (SFO) - Los Angeles, US (LAX)

American Airlines

Apr 19

6:31am

SFO

11h 49m

LAX

PHX

Apr 19

6:20pm

ONT

as low as

$224

San Francisco, US (SFO) - Los Angeles, US (LAX)

Alaska Airlines

May 11

7:15am

SFO

16h 43m

RDM

PDX

May 11

11:58pm

ONT

as low as

$230

Flights to Los Angeles

Return flights

Flights From Ontario International Airport To San Francisco

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United States
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North America
United States
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Ontario International Airport

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Flight Deals from San Francisco to Ontario International Airport from $34

Stops

Airlines

Cabin Class

Departure Airports

Arrival Airports

Layover Airports

Best Price. GUARANTEED.

Top Deals on flights from San Francisco to Ontario International Airport

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