San Diego to San Francisco flights
The cheapest round trip we found from San Diego to San Francisco is $140 (Dec 13 – 15, Nonstop), 38% below the usual $226.
SAN to SFO · Round trip · Economy · Prices per person in USD · Price found (3 days ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $272 |
| December 2026 | $140 (cheapest month) |
| January 2027 | $214 |
| February 2027 | No fares found yet |
| March 2027 | No fares found yet |
| April 2027 | $200 |
| May 2027 | $239 |
| June 2027 | No fares found yet |
| July 2027 | $239 |
| August 2027 | No fares found yet |
| September 2027 | $245 |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 13 – 15 2 nights · leave Sun$140 −38% vs usual$140 −38% vs usual Book
Southwest Airlines Nonstop · 1h 40m -
Jan 1 – 4, 2027 3 nights · leave Fri$214 −5% vs usual$214 −5% vs usual Book
Alaska Airlines Nonstop · 1h 49m -
Nov 16 – 20 4 nights · leave Mon$272 +20% vs usual$272 +20% vs usual Book
Frontier Airlines Nonstop · 1h 55m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in San Francisco
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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 Francisco · Dec 13 – 15Partner links: we may earn a commission if you book, at no extra cost to you.
Good to know
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Flights to San Francisco from other cities
All flights to San Francisco Flying the other way? San Francisco to San Diego from $122
San Diego to San Francisco: questions
How much does a flight from San Diego to San Francisco cost?
The cheapest round trip we have found right now is $140, leaving December 13 and returning December 15. The usual price on this route is about $226, so this fare is 38% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from San Diego to San Francisco?
December 2026, with round trips from $140. The most expensive month in our data is November (from $272). Based on the 7 months ahead we have prices for.
Which airports do San Diego to San Francisco flights use?
San Diego airports include San Diego International (SAN) and McClellan-Palomar (CLD). San Francisco airports include San Francisco International (SFO). The prices on this page cover every airport in both cities (SAN and SFO are the city codes).
About this route
We track round-trip economy fares from San Diego (United States) to San Francisco (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $140, departing December 13 and returning December 15 on a nonstop flight, about 38% below the usual $226. The cheapest month to fly in our data is December, from $140. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.