Cheap Flights from San Francisco International to San Diego

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Flight deals from San Francisco International to San Diego

Looking for a cheap last-minute deal or the best round-trip flight from San Francisco International Airport to San Diego? If you want to travel next month, round-trip fares start from AED 203. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from San Francisco International to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to San Diego flights are currently cheapest in June.

Direct flights from San Francisco International to San Diego

Alternative San Francisco International to San Diego routes

Looking for the cheapest, fastest or easiest route from San Francisco International to San Diego? You could fly into the following airports instead.

San Francisco to San Diego: Flight information

The things to know before you go.
Cheapest flight foundAED 94
Cheapest month to flyJuly
Average flight time1 hr, 48 mins
Most popular airlineAlaska Airlines
Average flights per week679

Finding cheap flights from San Francisco International to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan – Palomar.
The best price we found for a round-trip flight from San Francisco International to San Diego is AED 197. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 47 minutes is the average flight time from San Francisco International to San Diego.
Alaska Airlines, Southwest Airlines and United fly direct from San Francisco International to San Diego.
There are 679 flights per week flying from San Francisco International to San Diego, as of May 2026.
The cheapest month to fly from San Francisco International to San Diego is usually July.
If you're flying from San Francisco International Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the center of San Diego. We've found flights to this airport from AED 197.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to San Diego on Saturday, July 11, 2026.
Yes – the average flight time is 1 hour and 47 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 17°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Frontier Airlines offers the cheapest flight tickets to San Diego.

Traveling from San Francisco International Airport (SFO) to San Diego: what you need to know

  • The average duration of a direct flight from San Francisco International Airport to San Diego is 1 hour 40 minutes.

  • San Diego and San Francisco (where San Francisco International Airport is located) share the UTC-8 timezone. This means you won't have to change your watch on arrival.

  • San Francisco International Airport (SFO) to San Diego International Airport (SAN) is the most popular route, with 129 flights a week to pick from. If you have things to do before leaving, the last flight from SFO to SAN is with United Airlines at 22:53. Choose the first departure operated by Southwest Airlines at 05:40 if you want to fly out earlier.

  • Give yourself enough time to make your SFO to San Diego flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as July, you'll want to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you fly during a peak period in general.

  • Start your trip at SFO and travel straight to San Diego International Airport (SAN). That will be your arrival point when searching for San Francisco International Airport to San Diego tickets.

  • Choose from a variety of airlines offering direct flights from San Francisco International Airport to San Diego. Get on board with any of these:

  • SFO is around 18 kilometers from central San Francisco. If you're ride-sharing, driving or catching a cab from the center, it'll take 25 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 35 minutes.

  • Want an easy start to your trip? Stay near SFO. Whether you've booked an early flight from San Francisco International Airport to San Diego or don't want departure day to feel hectic, these hotels are just the thing:

  • 78% of flights leaving from San Francisco International Airport arrive at their destination on schedule.

How to find the cheapest flights from San Francisco International Airport (SFO) to San Diego

  • AED 94 is the lowest price we've found for a one-way San Francisco International Airport to San Diego flight. A round-trip plane ticket right now is AED 197. Depending on when you want to go and the availability, these fares can change.

  • Booking early is often the key to finding a cheap flight from SFO to San Diego. Flight prices rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • If you can be flexible with your trip dates, check out the 'Whole month' search tool. It'll show you the cheapest price across each month when looking for a San Francisco International Airport to San Diego ticket.

  • You don't need to check back constantly to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's an even bigger deal on cheap flights from SFO to San Diego.

  • Tailor your flights with filters. Select your arrival and departure times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from San Francisco International Airport to San Diego.

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) to the center of San Diego takes about 15 minutes by car. The center is roughly 5 kilometers away.

  • Traveling to the center on public transport will take you around 25 minutes.

  • The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from San Francisco International Airport to San Diego. Reserve one of these accommodation options near SAN instead:

  • Booking your ride from San Diego International Airport around two weeks before your flight from SFO to San Diego can help you get the lowest rate.

  • You'll find SAN at N Harbor Dr.

McClellan-Palomar Airport (CLD)

  • If you're staying in central San Diego (or just can't wait to start exploring), the city is around 48 kilometers from McClellan-Palomar Airport (CLD). Look for any information desks to point you in the right direction after disembarking your flight from San Francisco International Airport to San Diego.

  • Hang up the 'Do not disturb' sign and unwind at a hotel close to CLD. Here are a few options where you can tuck yourself in after your SFO to San Diego flight:

  • Avoid filling out forms on the spot and save time at the rental desk by completing your booking beforehand. Reserve your ride from CLD ahead of time so you can just get the keys and go.

Best time to go to San Diego

  • July is the most popular month for flights from San Francisco International Airport to San Diego. To avoid the crowds, visit San Diego in December.

  • When booking your San Francisco International Airport to San Diego plane ticket, think about what kind of weather you prefer. August is the warmest month in San Diego, with temperatures ranging from 16ºC (61ºF) to 27ºC (81ºF).

  • If you want cooler conditions, look for a cheap ticket from SFO to San Diego in February when temperatures average between 8ºC (46ºF) and 22ºC (72ºF).

More about San Diego

Explore more of the United States

  • Los Angeles is just one of the many cities in the United States waiting to be discovered once you've seen the sights of San Diego. Around 177 kilometers away to the northwest, top sights here include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • If you're looking to explore another major stop in the United States, consider Phoenix, roughly 483 kilometers east of San Diego. Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.