Cheap flights from San Francisco to San Diego from £29

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
16 out — 23 out1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from San Francisco to San Diego are usually found in January or February, booked 72 days in advance, depart on a Thursday or Monday and return on a Wednesday

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 16 setembro 2025.

Round-trip from

£57

One-way from

£29

Popular in

December

Cheapest in

January

Average price

£114

Good round-trip deal

£217 or less

Good one-way deal

£48 or less
Southwest
  • Southwest
  • 13/10-20/10
  • Nonstop
  • 3h 10m total
  • San Francisco to San Diego
United Airlines
  • United Airlines
  • 18/11
  • Nonstop
  • 1h 38m total
  • San Francisco to San Diego
High demand for flights, 3% potential price rise
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from San Francisco to San Diego.
Price to beat on a one-way flight from San Francisco to San Diego.

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 16 setembro 2025.

ter 14/1022:36SFO - SAN
Nonstop1h 39mUnited Airlines
ter 21/1019:28SAN - SFO
Nonstop1h 40mUnited Airlines
Deal found 16/9£57
qua 19/1122:36SFO - SAN
Nonstop1h 38mUnited Airlines
ter 2/1213:05SAN - SFO
Nonstop1h 47mUnited Airlines
Deal found 16/9£64
qua 19/1122:36SFO - SAN
Nonstop1h 38mUnited Airlines
sex 21/1113:10SAN - SFO
Nonstop1h 47mUnited Airlines
Deal found 15/9£65
ter 2/1216:30SFO - SAN
Nonstop1h 30mSouthwest
dom 7/1210:30SAN - SFO
Nonstop1h 40mSouthwest
Deal found 14/9£65
qui 9/1022:36SFO - SAN
Nonstop1h 39mUnited Airlines
ter 14/1020:08SAN - SFO
Nonstop1h 40mUnited Airlines
Deal found 15/9£70
qui 16/1005:40SFO - SAN
Nonstop1h 30mSouthwest
seg 20/1019:35SAN - SFO
1 stop4h 10mSouthwest
Deal found 16/9£71
sáb 11/1014:20SFO - SAN
Nonstop1h 39mUnited Airlines
sáb 11/1018:00SAN - SFO
Nonstop1h 40mUnited Airlines
Deal found 15/9£72
sex 14/1115:55SFO - SAN
1 stop7h 00mSouthwest
dom 16/1107:00SAN - SFO
Nonstop1h 45mSouthwest
Deal found 15/9£73
qua 10/1207:00SFO - SAN
Nonstop1h 39mAlaska Airlines
sex 19/1206:15SAN - SFO
Nonstop2h 00mAlaska Airlines
Deal found 14/9£77
qua 3/1210:06SFO - SAN
1 stop6h 14mAlaska Airlines
qua 10/1219:59SAN - SFO
Nonstop1h 47mAlaska Airlines
Deal found 15/9£79
ter 14/1010:26SFO - SAN
Nonstop1h 50mAlaska Airlines
ter 14/1016:00SAN - SFO
Nonstop1h 45mAlaska Airlines
Deal found 15/9£82

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 16 setembro 2025.
Use the filters below to find and compare flights from San Francisco to San Diego that are best for you.

Fly from

San Francisco

Fly to

San Diego

Route

Depart

Return

Price

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

ter 7/10

07:15-08:45

Nonstop1h 30m

San Diego

ter 7/10

17:10-18:45

Nonstop1h 35m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

ter 14/10

10:26-12:16

Nonstop1h 50m

San Diego

qui 16/10

06:15-08:05

Nonstop1h 50m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

qui 9/10

06:15-07:56

Nonstop1h 41m

San Diego

sáb 11/10

19:28-21:08

Nonstop1h 40m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

seg 6/10

20:15-21:45

Nonstop1h 30m

San Diego

ter 7/10

10:35-12:20

Nonstop1h 45m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

seg 13/10

06:45-08:29

Nonstop1h 44m

San Diego

qui 16/10

06:15-08:05

Nonstop1h 50m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

qua 29/10

07:00-08:40

Nonstop1h 40m

San Diego

ter 4/11

20:08-22:01

Nonstop1h 53m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

seg 17/11

07:00-08:40

Nonstop1h 40m

San Diego

qua 19/11

20:08-22:01

Nonstop1h 53m

£57

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

qui 16/10

06:45-08:29

Nonstop1h 44m

San Diego

ter 21/10

12:18-14:01

Nonstop1h 43m

£71

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

dom 28/9

06:15-07:56

Nonstop1h 41m

San Diego

ter 7/10

19:28-21:08

Nonstop1h 40m

£71

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

seg 13/10

05:40-07:10

Nonstop1h 30m

San Diego

qui 16/10

19:35-23:45

1 stop4h 10m

£71

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 22 results
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2
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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 return 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to San Diego

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 return flight from San Francisco to San Diego. Price data was last updated on 12 September 2025.

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to San Diego (average of £585). Flying from San Francisco to San Diego in July is currently the most expensive (average of £920). 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 16 setembro 2025.

It’s typically best to fly out from San Francisco to San Diego in the morning. Doing so could potentially save you 59% on the flight price compared to flying at midday, which is usually more expensive.

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 16 setembro 2025.
Get a feel of what it's like to fly with Alaska Airlines, Hawaiian Airlines, andFrontier from San Francisco to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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?

    To fly from San Francisco to San Diego, you need to book a flight from San Francisco (SFO) to San Diego (SAN). Nonstop flights to San Diego from San Francisco take 1h 45m on average. When it comes time to book airfare, you have a few options: there are 75 outbound flights from San Francisco to San Diego offered by 3 different airlines.

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

  • How long is the flight from San Francisco to San Diego?

    There are many flights that can get you from San Francisco to San Diego in 1h 30m. Fly via Alaska Airlines, United Airlines, or Southwest to get the fastest option. San Francisco and San Diego are separated by a distance of 446 mi. Most flights are nonstop.

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

    Frontier, at £27, was found to be the cheapest airline from San Francisco to San Diego.Alternate airlines flying return to your destination include Alaska Airlines and Hawaiian Airlines. Frontier is 74% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as £29. Users have also found prices from £29 and £29 on Alaska Airlines and Hawaiian Airlines, respectively.

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

    No one likes to see their flight delayed. When booking a flight from San Francisco to San Diego consider choosing Air China (88%), United Airlines (78%) or Emirates (78%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £152 for a flight from San Francisco to San Diego. The cheapest flight overall is £47 while the most popular route, (San Francisco - San Diego) is currently priced at £136.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from San Francisco to San Diego (average of £585). Flying from San Francisco to San Diego in July is currently the most expensive (average of £920). 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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Top 3 airlines flying from San Francisco to San Diego

Discover the top 3 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 858,174 searches. Data last updated 16 setembro 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest£27Average£48FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapest£40Average£120FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapest£63Average£83FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights

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Can Cheapflights find flights from San Francisco to San Diego with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to San Diego, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from San Francisco to San Diego become cheaper?

Not ready to book yet? You can track prices for flights from San Francisco to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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