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Cheap Flights from San Francisco to San Diego

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Compare San Francisco International to San Diego flight deals

Find the cheapest month or even day of the year to fly to San Diego

Book the best San Diego fare with no extra fees

Flight deals from San Francisco International to San Diego

Looking for a cheap last-minute deal or the best return flight from San Francisco International to San Diego? Find the lowest prices on one-way and return tickets right here.
San Diego.$65 per passenger.Departing Tue, 3 Jun, returning Tue, 3 Jun.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Francisco International on Tue, 3 Jun, arriving in San Diego International.Inbound direct flight with Hawaiian Airlines departs from San Diego International on Tue, 3 Jun, arriving in San Francisco International.Price includes taxes and charges.From $65, select.
San Diego.$72 per passenger.Departing Wed, 28 May, returning Sat, 31 May.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Francisco International on Wed, 28 May, arriving in San Diego International.Inbound direct flight with Hawaiian Airlines departs from San Diego International on Sat, 31 May, arriving in San Francisco International.Price includes taxes and charges.From $72, select.
San Diego.$73 per passenger.Departing Tue, 13 May, returning Tue, 17 Jun.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Francisco International on Tue, 13 May, arriving in San Diego International.Inbound direct flight with Hawaiian Airlines departs from San Diego International on Tue, 17 Jun, arriving in San Francisco International.Price includes taxes and charges.From $73, select.
San Diego.$73 per passenger.Departing Mon, 7 Jul, returning Thu, 10 Jul.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Francisco International on Mon, 7 Jul, arriving in San Diego International.Inbound direct flight with Hawaiian Airlines departs from San Diego International on Thu, 10 Jul, arriving in San Francisco International.Price includes taxes and charges.From $73, select.
San Diego.$88 per passenger.Departing Mon, 4 Aug, returning Wed, 6 Aug.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Francisco International on Mon, 4 Aug, arriving in San Diego International.Inbound direct flight with Hawaiian Airlines departs from San Diego International on Wed, 6 Aug, arriving in San Francisco International.Price includes taxes and charges.From $88, select.
San Diego.$88 per passenger.Departing Thu, 26 Jun, returning Thu, 17 Jul.Return flight with United.Outbound direct flight with United departs from San Francisco International on Thu, 26 Jun, arriving in San Diego International.Inbound direct flight with United departs from San Diego International on Thu, 17 Jul, arriving in San Francisco International.Price includes taxes and charges.From $88, select.
San Diego.$89 per passenger.Departing Fri, 25 Jul, returning Fri, 1 Aug.Return flight with United.Outbound direct flight with United departs from San Francisco International on Fri, 25 Jul, arriving in San Diego International.Inbound direct flight with United departs from San Diego International on Fri, 1 Aug, arriving in San Francisco International.Price includes taxes and charges.From $89, select.
San Diego.$97 per passenger.Departing Mon, 28 Apr, returning Wed, 30 Apr.Return flight with Frontier Airlines and Hawaiian Airlines.Outbound direct flight with Frontier Airlines departs from San Francisco International on Mon, 28 Apr, arriving in San Diego International.Inbound direct flight with Hawaiian Airlines departs from San Diego International on Wed, 30 Apr, arriving in San Francisco International.Price includes taxes and charges.From $97, select.

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.
Apr
from $97
May
from $72
Jun
from $65
Jul
from $73
Aug
from $88
Sep
from $148
Oct
from $272
Nov
from $274
Dec
from $274
Jan
from $306
Feb
Find prices
Mar
from $324

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 found$65
Cheapest month to flyJune
Average flight time1 hr, 38 mins
Most popular airlineUnited
Average flights per week684

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 return flight from San Francisco International to San Diego is $65. 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 38 minutes is the average flight time from San Francisco International to San Diego.
United, Southwest Airlines and Alaska Airlines fly direct from San Francisco International to San Diego.
As of April 2025, there are 684 flights per week flying from San Francisco International to San Diego.
The cheapest month to fly from San Francisco International to San Diego is usually April 2025.
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 centre of San Diego. We've found flights into this airport from $65.
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 Tuesday, 3 June 2025.
Yes – the average flight time is 1 hour and 38 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 April, the average temperature is usually around 16°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, Hawaiian Airlines offers the cheapest flight tickets to San Diego.

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

  • Expect to be in the air for 1 hour 36 minutes. That's the average time for a direct flight from San Francisco International Airport to San Diego.

  • San Diego's timezone is UTC-7, which is the same as San Francisco (the location of San Francisco International Airport).

  • With 142 flights a week between the two airports, San Francisco International Airport (SFO) to San Diego International Airport (SAN) is the most popular route. Alaska Airlines operates the earliest flight at 06:00. If you'd like to make the most of your day before flying, the latest flight from SFO to SAN is with United at 22:20.

  • To ensure you catch your flight from SFO to San Diego, allow plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Popular months like August or holiday periods such as Thanksgiving and Christmas/New Year will mean longer lines at check-in and security. Be on the safe side and head to the airport even earlier. Arriving two hours before domestic flights and up four hours ahead of an international flight is wise.

  • You can catch a nonstop flight from San Francisco International Airport to San Diego that arrives at San Diego International Airport (SAN).

  • Well-known carriers that offer direct flights from San Francisco International Airport to San Diego include:

  • You won't need a visa or passport to fly within United States. You will need a valid form of identification though, like an ID card or driver's licence. Add them to your packing checklist once you've booked your cheap tickets from San Francisco International Airport to San Diego.

  • SFO is about 21 kilometres from central San Francisco. If you're catching a cab, driving or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the travel time to be approximately 47 minutes.

  • Want a handy hotel close to SFO? If you've booked an early flight from San Francisco International Airport to San Diego, these stays will have you moments from your departure gate:

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

  • $33 is the lowest price we've found for a one-way ticket from San Francisco International Airport to San Diego. For a return flight on this route, the best price is $65. Depending on when you want to go and the availability, these fares could change.

  • To snag cheap tickets from SFO to San Diego, book your trip 9 months before your departure date.

  • May is the cheapest month for tickets from San Francisco International Airport to San Diego. If you want to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Sign into your online account or use the app to set up a Price Alert. We'll notify you right away if there's a better deal on this route. It doesn't take long, and it'll save you from checking for flight tickets from SFO to San Diego every day.

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

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) to central San Diego takes about 9 minutes by car. It's approximately 5 kilometres away.

  • If you're travelling by public transport, expect a journey of around 20 minutes.

  • Reserve a hotel near SAN if you're catching a late flight from San Francisco International Airport to San Diego. Pick one of these accommodation options and avoid the hassle of a long transfer:

McClellan-Palomar Airport (CLD)

  • Once your flight from San Francisco International Airport to San Diego has hit the runway, you can reach the city centre in about 39 minutes by car. Central San Diego is roughly 56 kilometres from McClellan-Palomar Airport (CLD).

  • You can expect the journey to take approximately 2 hours and 14 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and rest at a hotel near CLD. Here are a few options where you can kick back after your flight from SFO to San Diego:

Best time to go to San Diego

  • It's time to figure out your dates for your flight from San Francisco International Airport to San Diego. July is the busiest month for a trip to San Diego. If you want a more relaxed atmosphere, go in May.

  • The warmest month in San Diego is August, with temperatures ranging between 17ºC and 28ºC. Book your flights from San Francisco International Airport to San Diego in this month if you enjoy this type of weather.

  • If you want to travel in cooler conditions, search for a cheap flight from SFO to San Diego in February when temperatures average between 7ºC and 23ºC.

More about San Diego

Complete your San Diego trip with a car rental

  • Finding you a cheap flight from San Francisco International Airport to San Diego isn't our only cool trick. Check out our car rentals in San Diego and explore at your own pace. We search for deals from trusted car rental companies and put them all in one place. Instantly compare offers and then book with no fees.

Plan the rest of your trip from San Francisco to San Diego

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