£37 Cheap Flights from San Diego (SAN) to San Francisco (SFO)

You can find one-way and return flights from San Diego, CA (SAN) to San Francisco, CA (SFO) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SAN to SFO ticket fares go up or down.

The cheapest months to fly from San Diego, CA (SAN) to San Francisco, CA (SFO) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

There are 9 airlines offering direct flights from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.). Here are some of the top carriers:

• United operates 75 direct flights from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) every week.
• Southwest Airlines operates 46 direct flights from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) every week.
• American Airlines operates 25 direct flights from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) every week.
• Frontier Airlines operates 7 direct flights from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) every week.
• Condor operates 9 direct flights from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) every week.

To find a cheap flight from San Diego, CA (SAN) to San Francisco, CA (SFO), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The cheapest months to fly from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) are typically March and May, with average return flights around £114. The most popular months for this route are April and October, meaning you'll find plenty of flight options during these times. While there isn't a single month that is both the cheapest and most popular, you can find good value in March and May, or more flight choices in April and October.

The earliest flight from San Diego Intl. (SAN) to San Francisco Intl. (SFO) typically departs around 12:55 AM local time. This service is operated by American Airlines and is seasonal, active only in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

A non-stop flight from San Diego Intl. (SAN) to San Francisco Intl. (SFO) typically takes around 1 hour 48 minutes, covering a distance of approximately 719 kilometers. If you opt for a flight with one stop, your journey will usually take longer, around 6 hours. Flights with two or more stops generally take about 8 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.

Select the "Business class" and "First class" filters when looking for San Diego, CA (SAN) to San Francisco, CA (SFO) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

A non-stop, one-way business class flight from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) is usually around £163 - £280. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) if you opt for a connecting flight.

It's easy to earn miles on a San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to San Francisco from San Diego Intl. (SAN), you can fly directly into San Francisco Intl. (SFO). Some flights may connect through major hubs like Harry Reid International Airport (LAS), Sky Harbor Intl. (PHX), or Norman Y. Mineta San Jose Intl. (SJC) before reaching San Francisco. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a San Diego, CA (SAN-San Diego Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your San Diego, CA (SAN) to San Francisco, CA (SFO) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. 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.