American Airlines Cheap Flights from San Francisco to San Diego: AA SFO→SAN

View HK$776 flight on Tue, 13 Jan 2026Opens in a new window
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Prices were available within the past 7 days and start at HK$776 for one-way flights and HK$1,619 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 9 Jan - Fri, 16 Jan
SFO
San Francisco
SAN
San Diego
HK$1,619 Return, found 2 days ago
HK$1,619
Return
found 2 days ago
Select American Airlines flight, departing Fri, 9 Jan from San Francisco to San Diego, returning Fri, 16 Jan, priced at HK$1,619 found 2 days ago
American Airlines
Mon, 12 Jan - Fri, 16 Jan
SFO
San Francisco
SAN
San Diego
HK$1,660 Return, found 1 day ago
HK$1,660
Return
found 1 day ago
Select American Airlines flight, departing Mon, 12 Jan from San Francisco to San Diego, returning Fri, 16 Jan, priced at HK$1,660 found 1 day ago

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

January is typically the cheapest month to fly

From HK$373 - HK$908 per traveller.

Frequently asked questions

How much is an American Airlines flight from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
Set the "Price (lowest to highest)" filter on Expedia to find cheap American Airlines round-trip flights from HK$1,619 from SFO to SAN. Affordable one-way options from HK$776 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SFO to SAN with American Airlines?
Browse for round-trip or one-way flights to San Diego in January or November. You could find a cheap fare with American Airlines during these quieter months.
Does American Airlines fly nonstop from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
Click on our "Nonstop" filter when looking for direct American Airlines flights from SFO to SAN. It's also a great way to compare other airlines servicing the same nonstop journey.
What airports does American Airlines fly into in San Diego?
American Airlines flights from San Francisco Intl. Airport (SFO) to San Diego land at San Diego Intl. Airport (SAN). This is the main entry point here.
Can I change or cancel my American Airlines flight from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
Typically, you can cancel or modify your flight, although additional fees may apply if your booking was made over 24 hours ago. Want to keep your options open? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you need to alter your plans. To update your itinerary, head to "Trips," select your flight and click on "Manage Booking" for more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
Delta
Distance
714 km
Average flight time
1 hour 31 mins
*Available to Expedia members.