$319 Cheap American Airlines flights Ontario (ONT) to San Francisco (SFO)

View $319 flight on Thu, May 21, 2026Opens in a new window

$319 Cheap American Airlines flights Ontario (ONT) to San Francisco (SFO)

Prices were available within the past 7 days and start at $319 for one-way flights and $503 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, May 21 - Sun, May 24
ONT
Ontario
SFO
San Francisco
$503 Roundtrip, found 4 days ago
$503
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, May 21 from Ontario to San Francisco, returning Sun, May 24, priced at $503 found 4 days ago

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
American Airlines
Distance
582 km
Average flight time
1 hour 33 mins

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