Cheap flights from San Francisco to San Diego from £19

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to San Diego departing on 8/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from San Francisco to San Diego

Cheap return flights

Southwest Logo
06:00 - 07:30SFO-SAN
1h 30mdirect
Southwest Logo
09:00 - 10:40SAN-SFO
1h 40mdirect
£49Southwest
Find Deal
Mon, 11 Aug - Tue, 19 Aug
Southwest Logo
20:55 - 22:25SFO-SAN
1h 30mdirect
Southwest Logo
07:35 - 09:10SAN-SFO
1h 35mdirect
£54Southwest
Find Deal
Fri, 8 Aug - Thu, 14 Aug
Southwest Logo
15:25 - 16:55SFO-SAN
1h 30mdirect
Southwest Logo
18:15 - 19:50SAN-SFO
1h 35mdirect
£54Southwest
Find Deal
Wed, 27 Aug - Sat, 30 Aug
Southwest Logo
06:00 - 07:30SFO-SAN
1h 30mdirect
Southwest Logo
16:30 - 21:25SAN-SFO
4h 55m1 stop
£55Southwest
Find Deal
Mon, 11 Aug - Wed, 13 Aug
Southwest Logo
08:05 - 09:35SFO-SAN
1h 30mdirect
Southwest Logo
20:50 - 22:25SAN-SFO
1h 35mdirect
£56Southwest
Find Deal
Sat, 9 Aug - Thu, 14 Aug
Alaska Airlines Logo
21:59 - 23:42SFO-SAN
1h 43mdirect
Alaska Airlines Logo
22:11 - 23:50SAN-SFO
1h 39mdirect
£57Alaska Airlines
Find Deal
Mon, 4 Aug - Wed, 6 Aug
United Airlines Logo
21:08 - 22:42SFO-SAN
1h 34mdirect
United Airlines Logo
19:27 - 21:05SAN-SFO
1h 38mdirect
£58United Airlines
Find Deal
Wed, 6 Aug - Wed, 13 Aug
United Airlines Logo
07:00 - 08:38SFO-SAN
1h 38mdirect
United Airlines Logo
09:45 - 11:23SAN-SFO
1h 38mdirect
£60United Airlines
Find Deal
Thu, 31 Jul - Mon, 4 Aug
Alaska Airlines Logo
06:00 - 07:42SFO-SAN
1h 42mdirect
Alaska Airlines Logo
06:15 - 08:00SAN-SFO
1h 45mdirect
£64Alaska Airlines
Find Deal
Mon, 21 Jul - Thu, 24 Jul
Hawaiian Airlines Logo
06:00 - 07:42SFO-SAN
1h 42mdirect
Hawaiian Airlines Logo
18:57 - 23:59SAN-SFO
5h 02m1 stop
£88Hawaiian Airlines
Find Deal
Mon, 4 Aug - Thu, 7 Aug

Southwest flights from San Francisco to San Diego

Our best Southwest deals on San Francisco to San Diego flight tickets
Southwest
11 Aug
SFO06:00San Francisco
1h 30m
SAN07:30San Diego
19 Aug
SAN09:00San Diego
1h 40m
SFO10:40San Francisco
Southwest
8 Aug
SFO20:55San Francisco
1h 30m
SAN22:25San Diego
14 Aug
SAN07:35San Diego
1h 35m
SFO09:10San Francisco
Southwest
27 Aug
SFO15:25San Francisco
1h 30m
SAN16:55San Diego
30 Aug
SAN18:15San Diego
1h 35m
SFO19:50San Francisco

United Airlines flights from San Francisco to San Diego

Our best United Airlines deals on San Francisco to San Diego flight tickets
United Airlines
6 Aug
SFO21:08San Francisco
1h 34m
SAN22:42San Diego
13 Aug
SAN19:27San Diego
1h 38m
SFO21:05San Francisco
United Airlines
31 Jul
SFO07:00San Francisco
1h 38m
SAN08:38San Diego
4 Aug
SAN09:45San Diego
1h 38m
SFO11:23San Francisco
United Airlines
1 Aug
SFO22:35San Francisco
1h 40m
SAN00:15San Diego
5 Aug
SAN16:00San Diego
1h 38m
SFO17:38San Francisco

See travel insights to San Diego from

How to get the cheapest flight ticket from San Francisco to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Francisco and San Diego?

What is the cheapest month to fly to San Diego?

If you don’t want to visit San Diego in January, then you should wait until February to fly from San Francisco, when ticket prices are also cheap, with an average price of £91.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from San Francisco to San Diego is on a Thursday when prices can be found for as low as £28. Flights from San Francisco to San Diego on a Friday will generally be more expensive and average around £186. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Diego?

In the morning is the cheapest time of day to fly from San Francisco to San Diego when you can find flight prices for as low as £78. Flying to San Diego in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at midday because they tend to be around £189. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest San Francisco to San Diego flight route?

Fly from San Francisco to San Diego for the best San Francisco - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £104 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from San Francisco for as low as £79 on momondo.

What cabin class options are available on San Francisco to San Diego flights?

There are 2 cabin classes available to choose from on San Francisco to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Francisco to San Diego flight prices changed over time?

As of July 2025, prices for San Francisco to San Diego flights are approximately 59% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Francisco to San Diego (SFO to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to San Diego

Best price found

£19

Fastest flight time

1h 30m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from San Francisco in the past 72 hours is £19. The best return flight deal from San Francisco to San Diego found on momondo in the last 72 hours is £49.
The fastest flight from San Francisco to San Diego takes 1h 30m
Direct flights go from San Francisco to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is San Francisco to San Diego by plane?

    San Diego is 458.7 mi away from San Francisco. Typically, this will take 1h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from San Francisco Airport to San Diego Airport?

    Prices for flights from San Francisco Airport to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from San Francisco Airport to San Diego Airport?

  • How old do you have to be to fly from San Francisco Airport to San Diego Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to San Diego?

  • What is the most popular airline from San Francisco to San Diego?


Best airlines flying from San Francisco to San Diego

Compare and see reviews for airlines that fly from San Francisco to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom £27Free CancellationRating
5.9
3,271 reviews
Search Frontier flights
Alaska AirlinesPriceFrom £40Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom £63Free CancellationRating
7.8
2,565 reviews
Search Hawaiian Airlines flights
  • Alaska Airlines Flights From San Francisco to San Diego

    Alaska Airlines flies from San Francisco to San Diego around 38 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from San Francisco to San Diego in the last 72 hours was £54 (round-trip), much lower than the average airfare cost of £164 for Alaska Airlines flights on this route.

  • Hawaiian Airlines Flights From San Francisco to San Diego

    Across 2,565 Hawaiian Airlines reviews on momondo, the average score is 7.8/10. Hawaiian Airlines flies from San Francisco to San Diego about 45 times each week, with ticket deals ranging from £85 to £113. Price data is based on momondo searches in the last 72 hours.


Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to San Diego?

It is quick and easy to find San Francisco to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from San Francisco to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to San Diego?

momondo helps you find the best flight between San Francisco and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to San Diego right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Francisco to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.


An easier way to manage your San Diego trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 16/7
Wed 23/7

Find better results for your trip to the United States