SAN to SFO, San Diego International Airport to San Francisco International Airport Cheap Flights

Based on HopeGoo data, Hawaiian Airlines offers one-way fares as low as US$44 on Cheapest nonstop routes (e.g. SAN to SFO on Tue, Mar 17), while Hawaiian Airlines offers Cheapest nonstop round-trips from US$70 departing on Wed, Apr 8 and returning on Wed, Apr 15.

At the moment, you can catch a nonstop flight from San Diego to San Francisco with the following airlines, including: United Airlines Alaska Airlines Frontier Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on HopeGoo within the last 90 days.

It takes about 1 hour 45 minutes to fly from San Diego to San Francisco.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from San Diego to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on HopeGoo data in the past 4 weeks, there is 127 flight per week flying from San Diego to San Francisco. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/-/-/F/S -- UA2076 (06:39) American Airlines: S/M/T/-/-/-/S -- AA9336 (07:24)

To find best deals on flights from San Diego to San Francisco, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Mar 17, with one-way flights priced at just US$44. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Hawaiian Airlines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around July. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from San Diego to San Francisco is December, when demand for travel is lower.

After crunching the numbers on our February flight calendar, it's currently cheapest to fly from San Diego to San Francisco on February 18, 2026 with Alaska Airlines, with prices starting at US$36.

You can land at any one of the following hubs in San Francisco, with San Diego International Airport to San Francisco International Airport (SAN-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).

The time difference between San Francisco and San Diego is 0h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your HopeGoo, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.