$39 Cheap Flights from San Diego (SAN) to San Francisco (SFO)

Popular airlines from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)

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Today's featured flight deals from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from San Diego to San Francisco (SAN-SFO)

Prices were available within the past 7 days and start at $39 for one-way flights and $77 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Alaska Airlines
Southwest Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Southwest Airlines
Frontier Airlines
United
American Airlines

Find the cheapest month to fly from San Diego (SAN) to San Francisco (SFO)

January is typically the cheapest month to fly

From $48 - $195 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Flights from San Diego (SAN) to San Francisco (SFO)
Origin airport
San Diego Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$71
Distance
446 mi
Average flight time
1 hour 35 mins

San Diego to San Francisco Flights

The cheapest times to fly from San Diego to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to San Francisco are during the month of September. You can find some of the cheapest flights from San Diego to San Francisco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to San Francisco

Sunday is one of the best days to book for cheap flights from San Diego to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Diego to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $39 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO) cost?
Lock in a cheap one-way flight from $39 or cheap return flight from $77 from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
September is the least expensive month to fly from SAN to SFO. Planning your trip for the off-season is often the key to finding a great deal.
Which airlines fly direct from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
Enjoy a seamless journey to San Francisco Intl. Airport (SFO). 4 carriers offer direct flights from San Diego Intl. Airport (SAN), including:

  • Alaska Airlines
  • United Airlines
  • Southwest Airlines

What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
While prices can change depending on when you travel, Frontier Airlines and Southwest Airlines are go-to choices for flights between San Diego Intl. Airport (SAN) and San Francisco Intl. Airport (SFO). You can also compare airlines on Expedia and use the "Sort by" filter to find the lowest-priced ticket for your SAN to SFO flight.
How many flights per day from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
With an average of 17 nonstop flights departing from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO) daily, you'll be on your way in no time.
What are the most popular departure times for flights from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
The 7 PM departures from SAN to SFO are typically the busiest. Prices can be higher for these popular slots. If you're looking to save, choose a less crowded time to fly.
What day of the week has the most flights from SAN to SFO?
Jet off on a Sunday if you're looking for the best choice of flights from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO).
What is the earliest flight from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
Take the earliest flight at around 6:15AM UTC-8, leaving from San Diego Intl. Airport (SAN). You'll be traveling for roughly 1h 45m, touching down at San Francisco Intl. Airport (SFO) at approximately 8:00AM UTC-8.
How long does it take to fly from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
Typically, it takes 1 hour and 44 minutes to fly the 450 mi from SAN to SFO.
What airline has the least delays from SAN to SFO?
With 80% of journeys typically arriving on time, American Airlines has the best on-time performance for direct flights from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO). To monitor your flight status and get notifications if anything changes, simply head to the Expedia App.
What is the best time to fly from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
To reach San Francisco Intl. Airport (SFO) on time, choose a flight that leaves San Diego Intl. Airport (SAN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Francisco from San Diego Intl. Airport (SAN)?
Come in for landing at any of these San Francisco airports after your direct flight from San Diego Intl. Airport (SAN):

  • San Francisco Intl. Airport (SFO)
  • Norman Y. Mineta San Jose Intl. Airport (SJC)
  • Oakland Intl. Airport (OAK)

Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO) last-minute?
Waiting until right before your break to book a flight from SAN to SFO often results in higher prices. While you may find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans to boost your chances of getting a bargain.
Is it cheaper to book a SAN to SFO flight and hotel package?
You'll typically save money by securing a SAN to SFO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've chosen your preferred accommodations and flights, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to San Francisco Intl. Airport (SFO)?
If you reserved your SAN to SFO flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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*Available to One Key members.