Deal found on October 3, 2026
Los Angeles to San Francisco
$53$22076% off
Round trip
Frontier is flying Ontario to San Francisco nonstop for $53 round trip, over 80% off the roughly $300 typical fare on this route. That's about as cheap as domestic flying gets, ideal for a quick Bay Area trip this fall or winter, and we haven't seen this route priced this low before.
Travel dates
Dates in December
e.g. Dec 2 – Dec 11 · 9 nights
Date options
4 at this price
Lowest we've seen
$46
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