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Cheap flights from San Francisco to San Diego from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to San Diego departing on 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Frontier Logo
2:13 pm - 3:52 pm
SFO
-
SAN
1h 39mnonstop
Frontier Logo
7:10 am - 8:46 pm
SAN
-
SFO
13h 36m1 stop
$99Frontier
Fri, Jan 9 - Tue, Jan 13
Frontier Logo
2:13 pm - 3:52 pm
SFO
-
SAN
1h 39mnonstop
Frontier Logo
8:10 pm - 10:03 pm
SAN
-
SFO
1h 53mnonstop
$102Frontier
Sat, Jan 3 - Mon, Jan 5
Multiple Airlines Logo
7:00 am - 8:35 am
SFO
-
SAN
1h 35mnonstop
Multiple Airlines Logo
8:32 pm - 10:25 pm
SAN
-
SFO
1h 53mnonstop
$103Multiple Airlines
Wed, Jan 7 - Mon, Jan 12
Frontier Logo
8:14 pm - 1:51 pm
SFO
-
SAN
17h 37m1 stop
Frontier Logo
8:32 pm - 10:25 pm
SAN
-
SFO
1h 53mnonstop
$104Frontier
Fri, Jan 9 - Mon, Jan 12
Frontier Logo
2:13 pm - 3:52 pm
SFO
-
SAN
1h 39mnonstop
Frontier Logo
2:50 pm - 3:58 pm
SAN
-
SFO
25h 08m1 stop
$105Frontier
Mon, Jan 5 - Sun, Jan 11
Multiple Airlines Logo
8:20 am - 10:04 am
SFO
-
SAN
1h 44mnonstop
Multiple Airlines Logo
8:32 pm - 10:25 pm
SAN
-
SFO
1h 53mnonstop
$106Multiple Airlines
Tue, Jan 6 - Mon, Jan 12
Multiple Airlines Logo
8:20 am - 10:04 am
SFO
-
SAN
1h 44mnonstop
Multiple Airlines Logo
8:32 pm - 10:25 pm
SAN
-
SFO
1h 53mnonstop
$107Multiple Airlines
Tue, Jan 6 - Fri, Jan 9
Hawaiian Airlines Logo
10:12 am - 11:45 am
SFO
-
SAN
1h 33mnonstop
Hawaiian Airlines Logo
12:15 pm - 2:02 pm
SAN
-
SFO
1h 47mnonstop
$108Hawaiian Airlines
Wed, Jan 21 - Wed, Jan 28
Hawaiian Airlines Logo
2:52 pm - 4:30 pm
SFO
-
SAN
1h 38mnonstop
Hawaiian Airlines Logo
12:15 pm - 2:02 pm
SAN
-
SFO
1h 47mnonstop
$109Hawaiian Airlines
Tue, Jan 20 - Tue, Jan 27
Frontier Logo
2:36 pm - 9:58 pm
SFO
-
SAN
7h 22m1 stop
Frontier Logo
8:32 pm - 10:25 pm
SAN
-
SFO
1h 53mnonstop
$110Frontier
Sat, Jan 10 - Mon, Jan 12

Southwest flights from San Francisco to San Diego

Our best Southwest deals on San Francisco to San Diego flight tickets
Southwest
Jan 6
SFO2:35 pmSan Francisco
6h 15m
1 stop
SAN8:50 pmSan Diego
Jan 13
SAN3:15 pmSan Diego
1h 40m
SFO4:55 pmSan Francisco
$127
Find similar
Southwest
Jan 17
SFO10:45 amSan Francisco
4h 35m
1 stop
SAN3:20 pmSan Diego
Jan 24
SAN6:45 amSan Diego
6h 05m
1 stop
SFO12:50 pmSan Francisco
$136
Find similar
Southwest
Jan 1
SFO5:10 amSan Francisco
6h 35m
1 stop
SAN11:45 amSan Diego
Jan 6
SAN5:40 pmSan Diego
4h 10m
1 stop
SFO9:50 pmSan Francisco
$151
Find similar

Frontier flights from San Francisco to San Diego

Our best Frontier deals on San Francisco to San Diego flight tickets
Frontier
Jan 9
SFO2:13 pmSan Francisco
1h 39m
SAN3:52 pmSan Diego
Jan 13
SAN7:10 amSan Diego
13h 36m
1 stop
SFO8:46 pmSan Francisco
$99
Find similar
Frontier
Jan 3
SFO2:13 pmSan Francisco
1h 39m
SAN3:52 pmSan Diego
Jan 5
SAN8:10 pmSan Diego
1h 53m
SFO10:03 pmSan Francisco
$102
Find similar
Frontier
Jan 9
SFO8:14 pmSan Francisco
17h 37m
1 stop
SAN1:51 pmSan Diego
Jan 12
SAN8:32 pmSan Diego
1h 53m
SFO10:25 pmSan Francisco
$104
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 8, 2025.
Use the filters below to find and compare flights from San Francisco to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Fri 1/9

2:13 pm-3:52 pm

Nonstop1h 39m

San Diego

Tue 1/13

7:10 am-8:46 pm

1 stop13h 36m

$99

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 1/3

2:13 pm-3:52 pm

Nonstop1h 39m

San Diego

Mon 1/5

8:10 pm-10:03 pm

Nonstop1h 53m

$102

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 1/7

7:00 am-8:35 am

Nonstop1h 35m

San Diego

Mon 1/12

8:32 pm-10:25 pm

Nonstop1h 53m

$103

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Fri 1/9

8:14 pm-1:51 pm

1 stop17h 37m

San Diego

Mon 1/12

8:32 pm-10:25 pm

Nonstop1h 53m

$104

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Mon 1/5

2:13 pm-3:52 pm

Nonstop1h 39m

San Diego

Sun 1/11

2:50 pm-3:58 pm

1 stop25h 08m

$105

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 1/6

8:20 am-10:04 am

Nonstop1h 44m

San Diego

Mon 1/12

8:32 pm-10:25 pm

Nonstop1h 53m

$106

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 1/6

8:20 am-10:04 am

Nonstop1h 44m

San Diego

Fri 1/9

8:32 pm-10:25 pm

Nonstop1h 53m

$107

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 1/21

10:12 am-11:45 am

Nonstop1h 33m

San Diego

Wed 1/28

12:15 pm-2:02 pm

Nonstop1h 47m

$108

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 1/20

2:52 pm-4:30 pm

Nonstop1h 38m

San Diego

Tue 1/27

12:15 pm-2:02 pm

Nonstop1h 47m

$109

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 1/10

2:36 pm-9:58 pm

1 stop7h 22m

San Diego

Mon 1/12

8:32 pm-10:25 pm

Nonstop1h 53m

$110

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from San Francisco to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from San Francisco during the month February is also very affordable. Most momondo users find prices during this month for around $126.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from San Francisco to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $145. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $193. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the morning when flights can be purchased for as low as $164. Flights at noon are often more expensive with an average ticket price of $182.

What is the cheapest San Francisco to San Diego flight route?

Fly from San Francisco to San Diego for the best San Francisco - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $154 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from San Francisco for as low as $115 on momondo.

What cabin class options are available on San Francisco to San Diego flights?

There are 4 cabin classes available to choose from on San Francisco to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Francisco to San Diego flight prices changed over time?

As of December 2025, prices for San Francisco to San Diego flights are approximately 44% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to San Diego (SFO to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to San Diego

Best Price Found

$92

Fastest flight time

1h 30m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from San Francisco in the past 72 hours is $92. The best round-trip flight deal from San Francisco to San Diego found on momondo in the last 72 hours is $163.
The fastest flight from San Francisco to San Diego takes 1h 30m
Direct flights go from San Francisco to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

  • How far is San Francisco to San Diego by plane?

    A flight from San Francisco to San Diego will travel around 458.7 mi. 1h 33m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Francisco Airport to San Diego Airport?

    Prices for flights from San Francisco Airport to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from San Francisco Airport to San Diego Airport?

  • How old do you have to be to fly from San Francisco Airport to San Diego Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Francisco to San Diego?

  • What is the most popular airline from San Francisco to San Diego?

Best airlines flying from San Francisco to San Diego

Compare and see reviews for airlines that fly from San Francisco to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $29Free CancellationRating
6.3
8,168 reviews
Search Spirit Airlines flights
FrontierPriceFrom $37Free CancellationRating
5.8
3,087 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $38Free CancellationRating
7.8
2,818 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $57Free CancellationRating
7.4
9,079 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $58Free CancellationRating
8.0
11,416 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $77Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
DeltaPriceFrom $98Free CancellationRating
7.9
8,011 reviews
Search Delta flights
American AirlinesPriceFrom $179Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights

  • Alaska Airlines Flights From San Francisco to San Diego

    Alaska Airlines is one of the most popular airlines flying from San Francisco to San Diego, operating 49 flights/week on average for this route. A good Alaska Airlines flight deal for San Francisco to San Diego starts from $58 round-trip, up to an average price of $190. Our users have rated Alaska Airlines at 8.0/10.

  • Southwest Flights From San Francisco to San Diego

    Another popular option for San Francisco to San Diego flights is Southwest (8.0/10, 4,252 ratings). Southwest flies from San Francisco to San Diego around 51 times per week, with deals starting from $77 round-trip and rising to an average price of around $183.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Imperial Beach
Poway
La Mesa
Borrego Springs
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to San Diego?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to San Diego. momondo saves you time and could save you money on your trip.

Can I find flights from San Francisco to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from San Francisco with this policy.

How can momondo help me find flights from San Francisco to San Diego?

momondo helps you find the best flight between San Francisco and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to San Diego right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Francisco to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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