Deal found on October 28, 2026
San Diego to San Francisco
$38$18880% off
Round trip
San Diego to San Francisco just hit $38 round trip on nonstop Frontier flights, tying the cheapest fare we've ever tracked on this route and well under the usual $150 to $207. Nine different travel windows are open from November through February, some of the best flexibility we've seen on this short hop. At under 2 hours in the air, it's basically a free weekend add-on for the Bay Area.
Travel dates
November into December
e.g. Nov 23 – Dec 2 · 9 nights
Date options
9 at this price
Lowest we've seen
$38
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