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$29+ Cheap flights from San Francisco to San Diego (SFO - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
Feb 3 — Feb 101
Mon 2/3
Mon 2/10
1 adult, Economy
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The best prices from San Francisco to San Diego are usually found in January or October, booked 73 days in advance, depart on a Saturday or Tuesday and return on a Friday

Cheap flight deals from San Francisco to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$38
(Frontier)

One-way from

$29
(Alaska Airlines)

Popular in

March

Cheapest in

January

Average price

$129

Good round-trip deal

$84 or less

Good one-way deal

$36 or less
Provider with most accurate pricing for San Francisco-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-San Diego flights.
Search Deals
From San Francisco to San Diego
Search Deals
One-way flight from San Francisco to San Diego
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to San Diego.
Search Deals
Price to beat on a one-way flight from San Francisco to San Diego.
Search Deals

Find flight deals from San Francisco to San Diego

Cheapest flights from San Francisco to San Diego
Explore the most affordable flight options available from San Francisco to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2025.

This Frontier deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/68:06 amSFO - SAN
Nonstop1h 44mFrontier
Mon 2/107:48 pmSAN - SFO
Nonstop1h 51mFrontier
Deal found 1/29$38
This Alaska Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/126:00 amSFO - SAN
Nonstop1h 36mAlaska Airlines
Wed 3/1210:24 amSAN - SFO
Nonstop1h 51mAlaska Airlines
Deal found 1/27$51
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/207:15 amSFO - SAN
Nonstop1h 37mUnited Airlines
Thu 2/2010:00 amSAN - SFO
Nonstop1h 46mUnited Airlines
Deal found 1/28$52
This Expedia deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/56:00 amSFO - SAN
Nonstop1h 36mMultiple Airlines
Fri 2/77:48 pmSAN - SFO
Nonstop1h 51mMultiple Airlines
Deal found 1/28$63
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/19:15 amSFO - SAN
1 stop6h 07mAmerican Airlines
Mon 2/312:32 pmSAN - SFO
1 stop6h 27mAmerican Airlines
Deal found 1/29$159
This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/215:30 amSFO - SAN
1 stop6h 20mSouthwest
Mon 3/248:35 amSAN - SFO
Nonstop1h 40mSouthwest
Deal found 1/28$173
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/156:50 pmSFO - SAN
1 stop3h 20mDelta
Mon 2/176:30 amSAN - SFO
1 stop3h 29mDelta
Deal found 1/29$177

Find flights from San Francisco to San Diego within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 2/15

7:12 pm-8:56 pm

Nonstop1h 44m

San Diego

Sat 2/22

8:18 pm-10:09 pm

Nonstop1h 51m

$38

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 3/12

6:00 am-7:36 am

Nonstop1h 36m

San Diego

Wed 3/12

10:24 am-12:15 pm

Nonstop1h 51m

$51

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 2/20

7:15 am-8:52 am

Nonstop1h 37m

San Diego

Thu 2/20

10:00 am-11:46 am

Nonstop1h 46m

$52

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 3/5

6:00 am-7:36 am

Nonstop1h 36m

San Diego

Sun 3/9

8:18 pm-10:09 pm

Nonstop1h 51m

$70

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 2/8

9:15 am-3:22 pm

1 stop6h 07m

San Diego

Mon 2/10

12:32 pm-6:59 pm

1 stop6h 27m

$159

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Fri 3/21

5:30 am-11:50 am

1 stop6h 20m

San Diego

Mon 3/24

8:35 am-10:15 am

Nonstop1h 40m

$173

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sun 3/23

6:10 am-10:15 am

1 stop4h 05m

San Diego

Tue 4/1

10:55 am-3:09 pm

1 stop4h 14m

$177

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 2/11

1:42 pm-3:17 pm

Nonstop1h 35m

$29

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sun 5/4

4:44 pm-6:28 pm

Nonstop1h 44m

$33

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Fri 4/25

10:47 pm-12:30 am

Nonstop1h 43m

$52

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 14 results
1
2

Compare providers for flights from San Francisco to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to San Diego in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Francisco to San Diego flights

Find out what our experts recommend to make the most of your San Francisco to San Diego trip
Airlines
Frontier

Frontier offers extra comfort seats with 32” separation for a fee, enhancing short-haul comfort.


Frontier's Zone 1 boarding is available with a carry-on purchase or special fare bundle.

Read more about Frontierby Marisa Garcia
Alaska Airlines

Alaska Airlines offers 32” legroom in Main Cabin, enhancing comfort for short flights.


Alaska Airlines' Wi-Fi is a flat fee, ideal for business travelers needing connectivity.

Read more about Alaska Airlinesby Robert Schrader
United Airlines

United's Economy Plus offers extra legroom, ideal for added comfort on short flights.


United's MileagePlus program allows pooling miles, useful for frequent travelers.

Read more about United Airlinesby Harriet Baskas
Airports
SFO

For a quick departure, use the 'bonus' checkpoint on the mezzanine level of Harvey Milk Terminal 1 for easy access from the AirTrain station.

Read more about SFOby Harriet Baskas
SAN

SAN is just three miles from downtown. Use the Metropolitan Transit System's Route 992 bus for a convenient connection to the city.

Read more about SANby Blane Bachelor
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

Best time to book a flight from San Francisco to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Francisco to San Diego

Get recent, data-driven insights about flights from San Francisco to San Diego including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Francisco to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to San Diego. Price data was last updated on January 24, 2025.

The price you pay for your flight from San Francisco to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Francisco to San Diego?

Currently, August is the cheapest month in which you can book a flight from San Francisco to San Diego (average of $286). Flying from San Francisco to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to SAN?

Find hourly flight availability from San Francisco to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to San Diego in the afternoon. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from San Francisco to San Diego?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to San Diego. Price data was last updated on January 26, 2025.

Travelers seeking maximum savings on their San Francisco to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to San Diego

Explore weekly flight availability from San Francisco to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2025.

The most flights from SFO to SAN are scheduled on a Monday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated January 29, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from San Francisco to San Diego by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,587 reviews

Food

7.1

Overall

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,587 reviews
Southwest
8.1
Very good
4,587 reviews

Food

7.1

Overall

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,587 reviews

Food

7.1

Overall

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,456 reviews
Southwest
8.1
Very good
4,587 reviews

Food

7.1

Overall

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,922 reviews
Southwest
8.1
Very good
4,587 reviews

Food

7.1

Overall

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,587 reviews

Food

7.1

Overall

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from San Francisco to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Francisco to San Diego?

    If you wish to fly to San Diego from San Francisco, then you need to book flights from San Francisco to San Diego. There are 50 flights from San Francisco (SFO) to San Diego (SAN) per day to choose from. Flights to San Diego from San Francisco are available from 7 different airlines, which means you should have some options if you want to compare airfare deals. 1h 29m is how long a nonstop flight from San Francisco to San Diego typically takes.

  • How popular is this San Francisco to San Diego flight route?

    Flights from San Francisco to San Diego have been viewed 159 times in the past calendar month.

  • What are the cheapest airlines flying from San Francisco to San Diego round-trip?

    Flying on Frontier is currently your cheapest option to San Diego, with prices starting at $38. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $51 and $52, respectively. These flights start at 77% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Francisco to San Diego one-way?

    $29 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $34 and $52, respectively.

  • What are the most reliable airlines from San Francisco to San Diego?

    Before booking your flight to San Diego from San Francisco, check out the most reliable airlines to get you to your destination on time: Horizon Air (85%), Japan Airlines (79%), Lufthansa( 79%).

  • What are the cheapest flights from San Francisco to San Diego?

    Looking for the cheapest flight from San Francisco to San Diego? While on average our users pay $279, our data indicates the cheapest price to be $19. The most popular route (San Francisco - San Diego), is priced around $38.

  • Can I find deals for flights from San Francisco to San Diego that include hotel bookings?

    Yes. In addition to deals on San Francisco to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to San Diego.

  • Can I find deals for business class flights from San Francisco to San Diego?

    Yes. Cheapflights offers flight deals from San Francisco to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to San Diego?

    Currently, August is the cheapest month in which you can book a flight from San Francisco to San Diego (average of $286). Flying from San Francisco to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

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

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Alternative routes for San Francisco to San Diego

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Top 6 airlines flying from San Francisco to San Diego

Discover the top 6 airlines that operate flights from San Francisco to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$32Average$104FlexibilityNo cancel feeOn-time65%
FrontierCheapest$38Average$106FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$98Average$258FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$98Average$201FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$102Average$241FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$196Average$398FlexibilityNo cancel feeOn-time71%
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