Cheap flights from San Francisco to San Diego
Fares from $18 in December 2026. Compare every month below, then book with the site you like.
Search San Francisco → San Diego flightsCheapest San Francisco to San Diego fares by month
Lowest price per person found in recent searches. Prices change often and are checked when you book.
- November 2026Nov 19 · one way · Southwest · Direct$55See deal
- December 2026Dec 1 · one way · Frontier · Direct$18See deal
- March 2027Mar 24 · one way · Alaska Airlines · 1 stop$93See deal
San Francisco to San Diego at a glance
- Distance447 miles
- Nonstop flight timeabout 1h 30m
- Cheapest monthDecember 2026
- Airport codesSFO → SAN
Plan your San Diego trip
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Frequently asked questions
- How much is a flight from San Francisco to San Diego?
- The cheapest fare we found recently is $18 per person, departing Dec 1 on Frontier. Prices change daily, so search your dates to see today's fares.
- What is the cheapest month to fly from San Francisco to San Diego?
- December 2026 is currently the cheapest month, from $18. March 2027 is the most expensive, from $93.
- Are there direct flights from San Francisco to San Diego?
- Yes. Recent searches found nonstop fares from $18.
- Which airlines fly from San Francisco to San Diego?
- The cheapest recent fares on this route were on Southwest, Frontier, Alaska Airlines.
- How long is the flight from San Francisco to San Diego?
- San Francisco and San Diego are about 447 miles apart, so a nonstop flight takes roughly 1h 30m. Flights with a stop take longer, depending on the connection.
- How do I find the cheapest flight from San Francisco to San Diego?
- Search your dates on Gotoesy. We list fares from several booking sites sorted cheapest first, show nearby dates when your day has no saved fare, and send you straight to the seller to book.
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