฿2,830 Cheap United flights from San Francisco to San Diego (SFO→SAN)

View ฿2,830 flight on Mon, 2 Feb 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

United flights from San Francisco to San Diego (SFO→SAN)

Prices were available within the past 7 days and start at ฿2,830 for one-way flights and ฿6,930 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 27 Feb - Sun, 1 Mar
SFO
San Francisco
SAN
San Diego
฿6,930 Return, found 2 days ago
฿6,930
Return
found 2 days ago
Select United flight, departing Fri, 27 Feb from San Francisco to San Diego, returning Sun, 1 Mar, priced at ฿6,930 found 2 days ago
United
Fri, 27 Feb - Sun, 1 Mar
SFO
San Francisco
SAN
San Diego
฿7,120 Return, found 2 days ago
฿7,120
Return
found 2 days ago
Select United flight, departing Fri, 27 Feb from San Francisco to San Diego, returning Sun, 1 Mar, priced at ฿7,120 found 2 days ago

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

January is typically the cheapest month to fly

From ฿1,535 - ฿3,734 per traveller.
Flight from San Francisco to San Diego route information
Origin airport
San Francisco Intl.
Destination airport
San Diego Intl.
Distance
714 km
Average flight time
1 hour 31 mins

Frequently asked questions

How much is a United Airlines flight from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
Apply the "Price (lowest to highest)" filter on Expedia to search for cheap United Airlines return flights from ฿6,930 from SFO to SAN. Affordable one-way fares from ฿2,830 are available as well.**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 United Airlines?
Browse for return or one-way flights to San Diego in January or November. You could find lower fares with United Airlines during these off-season months.
Does United Airlines fly nonstop from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
United Airlines has direct flights from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN), with 41 departures each week. Just choose the "Nonstop" and "Airline" filters during your search on Expedia to show all direct United Airlines flights to SAN.
How long does it take to fly from SFO to SAN with United Airlines?
Take off from San Francisco Intl. Airport (SFO) for San Diego Intl. Airport (SAN) on a direct United Airlines flight, and you'll be in the air for about 1h 39m.
Which day of the week has the most United Airlines flights from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
United Airlines operates the most flights from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN) on Wednesday. With up to 6 daily departures, you'll get the most choice and flexibility on this day.
What airports does United Airlines fly into in San Diego?
Get on a United Airlines flight from San Francisco Intl. Airport (SFO) to San Diego, and you're most likely to arrive at San Diego Intl. Airport (SAN). This is the airline's main hub in this city.
What type of plane does United Airlines fly from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
For the San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN) route, United Airlines typically uses Boeing 737 MAX 8 and Boeing 737-800 planes. Remember that last-minute changes can occur for operational purposes, so your flight may be on another aircraft.
Can I change or cancel my United Airlines flight from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN)?
Changes are usually free within 24 hours of making your booking, but your airline may charge a fee after that time. For more information about modifying your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your itinerary without being charged, tick the "Changes included" and "No cancel fee" filters when planning your next trip.

Explore a world of travel with Expedia

*Available to Expedia members.