San Francisco to San Diego SFO → SAN
San Francisco International Airport (SFO) → San Diego International Airport (SAN)
The cheapest return found recently is $149 with Alaska Airlines, 5 Nov – 9 Nov, found today. The cheapest one-way found recently is $112 with Alaska Airlines, 13 May 2027, found 2 days ago.
Return
The cheapest return fare on each of 10 departure dates is usually $142 to $233.
Cheapest return found recently
$149
5 Nov – 9 Nov · Alaska Airlines
San Francisco International Airport (SFO) → San Diego International Airport (SAN)
Leaves 8:20 a.m. · Return leaves 6:35 p.m. · 3 h 17 min of travel, both ways together
out nonstop, back nonstop
found today
Cheapest nonstop return
$149
5 Nov – 9 Nov · Alaska Airlines
San Francisco International Airport (SFO) → San Diego International Airport (SAN)
Leaves 8:20 a.m. · Return leaves 6:35 p.m. · 3 h 17 min of travel, both ways together
out nonstop, back nonstop
found today
Found recently, and the cheapest we hold
$149 5 Nov – 9 Novfound todaySee prices for these dates
$97 12 Nov – 14 Novfound 3 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $41 to $97.
At $149, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 10 departure dates from 20 Oct to 30 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 4-night return fares leaving within 3 days of 5 Nov to compare.
Every date we hold
11 fares on 10 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Oct – 21 Oct | $256 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found today | See prices for these dates |
| 21 Oct – 27 Oct | $135 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 23 Oct – 30 Oct | $239 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 5 Nov – 9 Nov | $149 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found today | See prices for these dates |
| 7 Nov – 7 Nov | $261 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 10 Nov – 12 Nov | $139 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 12 Nov – 14 Nov | $97 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 20 Nov – 27 Nov | $184 | Southwest Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 25 Nov – 30 Nov | $200 | Southwest Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 30 Nov – 30 Nov | $214 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $97.
Airlines on the cheapest dates: Alaska Airlines, Frontier Airlines, Southwest Airlines.
One-way
The cheapest one-way fare on each of 9 departure dates is usually $46 to $112.
Cheapest one-way found recently
$112
13 May 2027 · Alaska Airlines
San Francisco International Airport (SFO) → San Diego International Airport (SAN)
Leaves 2:44 p.m. · 1 h 43 min trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$112
13 May 2027 · Alaska Airlines
San Francisco International Airport (SFO) → San Diego International Airport (SAN)
Leaves 2:44 p.m. · 1 h 43 min trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$112 13 May 2027found 2 days agoOpen this trip
$19 1 Decfound 4 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $17 to $19.
At $112, the cheapest one-way found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 9 departure dates from 23 Oct to 13 May 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 13 May 2027 to compare.
Every date we hold
9 fares on 9 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Oct | $113 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 6 days ago | Open this trip |
| 2 Nov | $65 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 5 days ago | Open this trip |
| 10 Nov | $84 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 3 days ago | Open this trip |
| 13 Nov | $46 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 6 days ago | Open this trip |
| 21 Nov | $49 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 6 days ago | Open this trip |
| 22 Nov | $42 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 4 days ago | Open this trip |
| 29 Nov | $128 | United Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | 1 stop | found 4 days ago | Open this trip |
| 1 Dec | $19 | Frontier Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 4 days ago | Open this trip |
| 13 May 2027 | $112 | Alaska Airlines | San Francisco International Airport (SFO) → San Diego International Airport (SAN) | nonstop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $19.
Airlines on the cheapest dates: Frontier Airlines, Alaska Airlines, United Airlines.
Premium cabin fares from San Francisco to San Diego
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 5 Nov – 9 Nov in another cabin: Premium economy · Business · First
Today's prices for 13 May 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for San Francisco to San Diego?
Return
Fares 30 to 59 days before departure were typically 67% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $209 | $110 | +199% | 22 |
| 7–13 days | $110 | $83 | +57% | 20 |
| 14–29 days | $92 | $82 | +31% | 21 |
| 30–59 days | $70 | $41 | Cheapest seen | 22 |
| 90–179 days | $175 | $175 | +150% | 8 |
| 180+ days | $198 | $198 | +183% | 8 |
One-way
Fares 30 to 59 days before departure were typically 78% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $85 | $47 | +347% | 23 |
| 7–13 days | $59 | $27 | +208% | 24 |
| 14–29 days | $22 | $17 | +16% | 24 |
| 30–59 days | $19 | $17 | Cheapest seen | 25 |
| 60–89 days | $19 | $19 | +0% | 11 |
| 180+ days | $98 | $98 | +416% | 10 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Oakland → San Diego
13 km from San Francisco
$220
$71 more than flying from San Francisco
5 Nov – 9 Nov · OAK → SAN · out nonstop, back nonstop
found today
San Jose → San Diego
67 km from San Francisco
$277
$128 more than flying from San Francisco
5 Nov – 9 Nov · SJC → SAN · out nonstop, back nonstop
found today
San Francisco → Palm Springs
136 km from San Diego
$423
$274 more than flying to San Diego
25 Oct – 1 Nov · SFO → PSP · out nonstop, back nonstop
found yesterday
Sacramento → San Diego
121 km from San Francisco
$159
$10 more than flying from San Francisco
22 Feb 2027 – 27 Feb 2027 · SMF → SAN · out nonstop, back nonstop
found 3 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Sacramento → San Diego
121 km from San Francisco
$99
$13 less than flying from San Francisco
8 Jan 2027 · SMF → SAN · nonstop
found yesterday
San Jose → San Diego
67 km from San Francisco
$144
$32 more than flying from San Francisco
13 May 2027 · SJC → SAN · nonstop
found 2 days ago
Oakland → San Diego
13 km from San Francisco
$147
$35 more than flying from San Francisco
29 Oct · OAK → SAN · 1 stop
found today
Monterey → San Diego
139 km from San Francisco
$287
$175 more than flying from San Francisco
25 Oct · MRY → SAN · nonstop
found 4 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 5 Nov – 9 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work