Frontier Airlines
Su, Mo, Th, and Fr
starting at $245
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from San Francisco to San Diego. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from San Francisco to San Diego, despite the fact that sometimes flights with transfers can cost significantly less.
The only airline operating direct flights from San Francisco to San Diego is Frontier Airlines. Flights operate on Sunday, Monday, Thursday, and Friday.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Frontier Airlines
Su, Mo, Th, and Fr
starting at $245
In different months, ticket prices from San Francisco to San Diego vary: minimum — $32 (July 2026), maximum — $142 (April 2027). Typically, the flight costs $79–$88.
Flight costs from San Francisco to San Diego climb toward the middle of the period, then start to drop. By choosing the right dates, you can save noticeably.
Prices rise from July 2026 to April 2027 (+348%), then decline from June 2026 to July 2026 (42%). The cheapest tickets are in June 2026–July 2026 (averaging $43), while the priciest are in November 2026–April 2027 ($115).
For savings, plan your flight for June 2026–July 2026 — you could save up to 62%. Try to avoid November 2026–April 2027 when possible: prices are at their highest then.
Price spread on this route is 52.3%. Costs depend heavily on the season, so flexibility in choosing your departure month is especially valuable here.
San Francisco — San Diego
06/29/2026
Departure
Direct flight
WN285
starting at $256
San Francisco — San Diego
06/30/2026
Departure
Direct flight
AS3482
starting at $220
The San Francisco — San Diego route is served by multiple airlines, including Southwest Airlines, Alaska Airlines, and Frontier Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $127, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.
The cheapest flight ticket from San Francisco to San Diego according to data for the last 48 hours costs $127
Often the best time to buy tickets from San Francisco to San Diego is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Francisco to San Diego can be found flying in these months: July, June, November.
The fastest flights from San Francisco to San Diego start from 1 hour 48 minutes in the air.
The following airlines operate direct flights on the route San Francisco — San Diego: Southwest Airlines, Alaska Airlines
We couldn't find any special offers for flights from San Francisco to San Diego
The cheapest one-way flight from San Francisco to San Diego departs on 06/30/2026, is operated by Frontier Airlines and costs $127
The cheapest roundtrip flight from San Francisco to San Diego departs on 07/24/2026, is operated by Frontier Airlines and costs $69
Fastest flight from San Francisco to San Diego takes 1h 48m
There are direct flights on this route 2 days a week: Mo and Tu
The distance between San Francisco and San Diego is 737km (457 miles). There are 22 direct flights from San Francisco to San Diego. San Francisco and San Diego are in the same time zone. Flights from San Francisco begin at 6:00 AM. The latest flight from San Francisco departs at 10:40 PM