Cheap Flights from San Francisco to San Diego

Cheapest flights from San Francisco to San Diego

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.

Cheapest one way flight

$19

Frontier Airlines

Direct flight

1h 41m

12/01/2026

The cheapest one-way flight from San Francisco to San Diego departs on 12/01/2026, is operated by Frontier Airlines and costs $19

Cheapest round trip flight

$55

Frontier Airlines

Direct flight

3h 36m

11/16/2026

The cheapest roundtrip flight from San Francisco to San Diego departs on 11/16/2026, is operated by Frontier Airlines and costs $55

The fastest flight

1h 38m

Fastest flight from San Francisco to San Diego takes 1h 38m

Direct flights

Several times a week

There are direct flights on this route 6 days a week: Su, Mo, Tu, We, Fr, and Sa

Earliest flight

6:30 AM

Latest flight

10:42 PM

Direct flights count

204

Distance

737km

Timezone difference

0h

The distance between San Francisco and San Diego is 737km (457 miles). There are 204 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 6:30 AM. The latest flight from San Francisco departs at 10:42 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from San Francisco to San Diego by month

In different months, ticket prices from San Francisco to San Diego vary: minimum — $18 (December 2026), maximum — $92 (March 2027). Typically, the flight costs $55–$146.

December 2026

Lowest price

on average:

$18

March 2027

Highest price

on average:

$92

Avg Price

Price dynamics

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.

Cheaper and more expensive periods

Prices rise from December 2026 to March 2027 (+420%), then decline from November 2026 to December 2026 (68%). The cheapest tickets are in November 2026–December 2026 (averaging $36), while the priciest are in December 2026–March 2027 ($55).

Best time to buy

For savings, plan your flight for November 2026–December 2026 — you could save up to 34%. Try to avoid December 2026–March 2027 when possible: prices are at their highest then.

Price predictability

Price spread on this route is 55.4%. Costs depend heavily on the season, so flexibility in choosing your departure month is especially valuable here.

Airlines operating on route

The San Francisco — San Diego route is served by multiple airlines, including Frontier Airlines, Southwest Airlines, and Alaska Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $19, 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.

Frontier Airlines

starting at $19

Southwest Airlines

starting at $164

Alaska Airlines

starting at $116

Non-stop flights from San Francisco to San Diego

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.

San Francisco — San Diego

SFO — SAN

11/09/2026

Departure

Direct flight

F93382

starting at $110

San Francisco — San Diego

SFO — SAN

11/14/2026

Departure

Direct flight

WN3853

starting at $164

San Francisco — San Diego

SFO — SAN

12/01/2026

Departure

Direct flight

F93382

starting at $19

San Francisco — San Diego

SFO — SAN

11/13/2026

Departure

Direct flight

F93382

starting at $108

San Francisco — San Diego

SFO — SAN

11/21/2026

Departure

Direct flight

F93382

starting at $130

San Francisco — San Diego

SFO — SAN

11/22/2026

Departure

Direct flight

F93384

starting at $130

San Francisco — San Diego

SFO — SAN

11/20/2026

Departure

Direct flight

F93382

starting at $132

San Francisco — San Diego

SFO — SAN

11/08/2026

Departure

Direct flight

F93382

starting at $163

San Francisco — San Diego

SFO — SAN

11/15/2026

Departure

Direct flight

F93382

starting at $62

San Francisco — San Diego

SFO — SAN

11/18/2026

Departure

Direct flight

AS2358

starting at $116

Schedule of direct flights from San Francisco to San Diego

The only airline operating direct flights from San Francisco to San Diego is Frontier Airlines. Flights operate every day.

Frontier Airlines

Every day

starting at $20

San Francisco airports overview

San Francisco International Airport

•

SFO

18km

•

San Diego airports overview

McClellan-Palomar Airport

•

CLD

46km

Serves Carlsbad and North County San Diego with regional commercial and general aviation flights, offering convenient access to coastal communities and business centers north of San Diego.

San Diego International Airport

•

SAN

5km

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from San Francisco to San Diego?

The cheapest flight ticket from San Francisco to San Diego according to data for the last 48 hours costs $19

When is the best time to buy air tickets on the route San Francisco — San Diego?

Often the best time to buy tickets from San Francisco to San Diego is 2 months before departure.

When is the cheapest time of year to fly from San Francisco to San Diego?

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: December, November, March.

How long does it take to fly from San Francisco to San Diego?

The fastest flights from San Francisco to San Diego start from 1 hour 38 minutes in the air.

Which airline can fly direct from San Francisco to San Diego?

The following airlines operate direct flights on the route San Francisco — San Diego: Frontier Airlines, Southwest Airlines, Alaska Airlines

Special offers and sales on air tickets from San Francisco to San Diego

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.

We couldn't find any special offers for flights from San Francisco to San Diego

Alternative routes

Concord ➜ San Diego•Berkeley ➜ San Diego•Modesto ➜ San Diego•Sacramento ➜ San Diego•Stockton ➜ San Diego•San Jose ➜ San Diego•Santa Rosa ➜ San Diego•San Francisco ➜ Bakersfield•San Francisco ➜ Long Beach•San Francisco ➜ Mexicali•San Francisco ➜ Phoenix•San Francisco ➜ Santa Barbara•San Francisco ➜ Santa Maria•San Francisco ➜ Tijuana•San Francisco ➜ Yuma

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