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San Francisco – San Diego: cheap flights

Prices on this page were found by travellers in recent searches. Choose your dates to see live prices from airlines and travel agencies.Round trips from San Francisco to San Diego currently start at $56. The cheapest month is November, from $56. Direct flights from $56.

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Round trip from

$56

16 Nov – 23 Nov · Frontier Airlines · direct

found today

Also for this trip: eSIM Transfer

Direct flights from

$56

16 Nov – 23 Nov · Frontier Airlines

The route at a glance

The flight from San Francisco to San Diego covers about 738 km; the shortest flight takes 1 h 37 min, a typical one 1 h 41 min.

100% of the cheapest tickets are direct; Frontier Airlines carries 42% of them.

Most cheap flights leave from San Francisco International Airport (18 km from the centre of San Francisco).

Most land at San Diego International Airport (4 km from the centre of San Diego).

A one-way ticket starts at $18, a round trip at $56.

Cheapest price by month

MonthRound trip from
November 2026$56
March 2027$62

Cheapest day to fly

Looking two months ahead, 1 December is the cheapest date to leave, at $18.

Tuesday is the cheapest day of the week to fly.

Cheapest day to fly
MonTueWedThuFriSatSun
4
$176
5
$148
6
$142
7
$136
8
$163
9
$112
10
$110
11
$110
12
$110
13
$108
14
$138
15
$63
16
$81
1 Dec
$18
18
$98
19
$55
20
$60

Cheaper More expensive

  • $18 — Tuesday, Dec. 1, 2026
  • $55 — Thursday, Nov. 19, 2026
  • $60 — Friday, Nov. 20, 2026
  • $63 — Sunday, Nov. 15, 2026
  • $81 — Monday, Nov. 16, 2026
  • $81 — Tuesday, Nov. 17, 2026
  • $98 — Wednesday, Nov. 18, 2026
  • $108 — Friday, Nov. 13, 2026
  • $110 — Tuesday, Nov. 10, 2026
  • $110 — Wednesday, Nov. 11, 2026
  • $110 — Thursday, Nov. 12, 2026
  • $112 — Monday, Nov. 9, 2026
  • $136 — Saturday, Nov. 7, 2026
  • $138 — Saturday, Nov. 14, 2026
  • $142 — Friday, Nov. 6, 2026
  • $148 — Thursday, Nov. 5, 2026
  • $163 — Sunday, Nov. 8, 2026
  • $176 — Wednesday, Nov. 4, 2026

Price trend, last 30 days

Over the last 30 days the fare moved between $42 and $111, averaging $73.

Today's price is 23% below that average — a good moment to book.

  • 5 October — $70
  • 10 October — $83
  • 15 October — $82
  • 20 October — $68
  • 25 October — $111
  • 30 October — $42
  • 4 November — $56

Trip length and timing

Travellers who pay least stay roughly 2 nights — 7 nights on the very cheapest ticket — and book about 8 days before departure.

Airlines on this route

Airports used

Alternatives

Nearby alternatives from San Francisco: Los Angeles from $36.

Trip essentials

Flight deals from San Francisco in Telegram

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Questions and answers

What is the cheapest price for flights from San Francisco to San Diego?
The cheapest round-trip ticket found recently costs $56.
Which month is the cheapest to fly from San Francisco to San Diego?
November 2026 is currently the cheapest month, with tickets from $56.
Are there direct flights from San Francisco to San Diego?
Yes. Direct flights were found from $56.
Which airlines fly from San Francisco to San Diego?
Airlines found on this route: Alaska Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
How far is San Diego from San Francisco?
The distance is about 738 km. A direct flight takes about 1 h 41 min.
How long is the flight from San Francisco to San Diego?
The shortest flight takes 1 h 37 min; most take about 1 h 41 min.
Which airports do flights from San Francisco to San Diego use?
Most depart from San Francisco International Airport and arrive at San Diego International Airport.
What is the cheapest day of the week to fly from San Francisco to San Diego?
In the next two months, Tuesday departures are the cheapest; the single cheapest day is 1 December at $18.
Round trip from $56 Check live prices