San Francisco to San Diego flights
The cheapest round trip we found from San Francisco to San Diego is $122 (Dec 7 – 14, Nonstop), 28% below the usual $170.
SFO to SAN · Round trip · Economy · Prices per person in USD · Price found (1 day ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $194 |
| December 2026 | $122 (cheapest month) |
| January 2027 | No fares found yet |
| February 2027 | No fares found yet |
| March 2027 | $145 |
| April 2027 | No fares found yet |
| May 2027 | No fares found yet |
| June 2027 | No fares found yet |
| July 2027 | No fares found yet |
| August 2027 | $239 |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 7 – 14 7 nights · leave Mon$122 −28% vs usual$122 −28% vs usual Book
Frontier Airlines Nonstop · 1h 43m -
Nov 30 – Dec 3 3 nights · leave Mon$194 +14% vs usual$194 +14% vs usual Book
Frontier Airlines Nonstop · 1h 38m
-
Nov 19 – 24 5 nights · leave Thu$240 +41% vs usual$240 +41% vs usual Book
Frontier Airlines Nonstop · 1h 41m
-
Nov 18 – 20 2 nights · leave Wed$249 +46% vs usual$249 +46% vs usual Book
Alaska Airlines Nonstop · 1h 38m -
Nov 20 – 22 2 nights · leave Fri$324 +91% vs usual$324 +91% vs usual Book
Frontier Airlines 1 stop · 5h 06m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in San Diego
One Go City pass for San Diego Zoo, San Diego Zoo Safari Park, Legoland California and more
- All-Inclusive Pass Unlimited Visit as many attractions as you like for 1–7 days from $99 See pass
- All-Inclusive Pass Plus All-Inclusive plus 5 extra attractions from $149 See pass
- Essentials Pass A few top attractions, chosen as you go from $149 See pass
Go City prices checked Oct 23, 2026; the final price is on Go City. Partner links: we may earn a commission if you book, at no extra cost to you.
Plan the rest of your trip
San Diego · Dec 7 – 14Partner links: we may earn a commission if you book, at no extra cost to you.
Good to know
More from San Francisco
-
-
- Ontario $68 −53%
-
-
-
-
-
Flights to San Diego from other cities
-
-
-
-
-
-
San Francisco to San Diego: questions
How much does a flight from San Francisco to San Diego cost?
The cheapest round trip we have found right now is $122, leaving December 7 and returning December 14. The usual price on this route is about $170, so this fare is 28% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from San Francisco to San Diego?
December 2026, with round trips from $122. The most expensive month in our data is August (from $239). Based on the 4 months ahead we have prices for.
Which airports do San Francisco to San Diego flights use?
San Francisco airports include San Francisco International (SFO). San Diego airports include San Diego International (SAN) and McClellan-Palomar (CLD). The prices on this page cover every airport in both cities (SFO and SAN are the city codes).
About this route
We track round-trip economy fares from San Francisco (United States) to San Diego (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $122, departing December 7 and returning December 14 on a nonstop flight, about 28% below the usual $170. Right now we're following 5 upcoming date combinations on this route. The cheapest month to fly in our data is December, from $122. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.