Cheap flights from San Diego to San Francisco from £53

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to San Francisco
Explore the most affordable flight options available from San Diego to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2026.

Tue 14/708:30
SAN
-
SFO
Nonstop1h 40m
Southwest
Tue 21/705:50
SFO
-
SAN
Nonstop1h 35m
Southwest
Deal found 16/6£82
Fri 18/916:36
SAN
-
SFO
Nonstop1h 46m
Frontier
Sun 20/917:52
SFO
-
SAN
Nonstop1h 45m
Frontier
Deal found 17/6£89
Thu 9/706:40
SAN
-
SFO
1 stop5h 20m
Southwest
Mon 13/711:00
SFO
-
SAN
Nonstop1h 40m
Southwest
Deal found 16/6£90
Wed 22/714:40
SAN
-
SFO
2 stops7h 35m
Southwest
Wed 29/714:55
SFO
-
SAN
Nonstop1h 45m
Southwest
Deal found 17/6£94
Tue 7/715:05
SAN
-
SFO
Nonstop1h 35m
Southwest
Tue 7/719:20
SFO
-
SAN
1 stop12h 05m
Southwest
Deal found 16/6£94
Tue 11/807:20
SAN
-
SFO
2 stops7h 20m
Southwest
Wed 12/813:35
SFO
-
SAN
2 stops6h 15m
Southwest
Deal found 13/6£105
Tue 14/706:30
SAN
-
SFO
2 stops7h 45m
Southwest
Wed 15/714:15
SFO
-
SAN
1 stop7h 20m
Southwest
Deal found 13/6£106
Sat 11/707:15
SAN
-
SFO
Nonstop1h 35m
Southwest
Mon 13/711:00
SFO
-
SAN
Nonstop1h 40m
Southwest
Deal found 16/6£108
Thu 16/720:10
SAN
-
SFO
Nonstop1h 45m
Southwest
Thu 23/707:00
SFO
-
SAN
Nonstop1h 35m
Southwest
Deal found 18/6£109
Sat 15/821:27
SAN
-
SFO
Nonstop1h 41m
Alaska Airlines
Mon 31/807:08
SFO
-
SAN
Nonstop1h 40m
Alaska Airlines
Deal found 14/6£109

Find flight deals from San Diego to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to San Francisco (SFO). 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 18 June 2026.

Round-trip from

£82

One-way from

£53

Popular in

March

Cheapest in

October

Average price

£150
Southwest
  • Southwest
  • 14/7-20/7
  • Nonstop
  • 3h 20m total
  • San Diego to San Francisco
Southwest
  • Southwest
  • 22/7
  • 2 total stops
  • 7h 45m total
  • San Diego to San Francisco
Highest demand for flights based on searches. 17% potential increase in price (£22 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Diego to San Francisco 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 18 June 2026.
Use the filters below to find and compare flights from San Diego to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 9/7

06:40-12:00

1 stop5h 20m

San Francisco

Mon 13/7

11:00-12:40

Nonstop1h 40m

£90

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 18/8

19:40-21:10

Nonstop1h 30m

San Francisco

Thu 20/8

06:20-13:50

1 stop7h 30m

£90

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 20/10

17:25-22:55

1 stop5h 30m

San Francisco

Tue 27/10

20:05-21:45

Nonstop1h 40m

£90

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 7/7

18:00-23:30

1 stop5h 30m

San Francisco

Thu 9/7

16:00-17:40

Nonstop1h 40m

£115

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 15/8

16:06-22:34

1 stop6h 28m

San Francisco

Mon 17/8

07:55-09:35

Nonstop1h 40m

£117
Fastest return journey

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sun 16/8

08:00-09:35

Nonstop1h 35m

San Francisco

Mon 31/8

19:45-21:20

Nonstop1h 35m

£123

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 1/10

19:11-23:59

1 stop4h 48m

San Francisco

Mon 5/10

06:50-10:10

1 stop3h 20m

£126

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Fri 28/8

13:20-19:15

2 stops5h 55m

San Francisco

Mon 31/8

19:45-21:20

Nonstop1h 35m

£127

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 22/7

06:30-14:15

2 stops7h 45m

San Francisco

Wed 29/7

06:00-10:20

1 stop4h 20m

£128

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sun 12/7

06:15-07:59

Nonstop1h 44m

San Francisco

Tue 6/10

16:47-18:35

Nonstop1h 48m

£134

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from San Diego to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from San Diego 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 Diego to San Francisco

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

To ensure you get the cheapest price possible for a flight from San Diego to San Francisco, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from San Diego to San Francisco (average of £101). Flying from San Diego to San Francisco in March is currently the most expensive (average of £192). 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 SAN to SFO?

Find hourly flight availability from San Diego to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 June 2026.

One of the essential ways to save on airfare from San Diego to San Francisco is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 90% on airfare.

How much does it cost for a return flight from San Diego to San Francisco?

Related info for your journey

Find useful and relevant information for your journey from San Diego to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How popular is this San Diego to San Francisco flight route?

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

    For as low as £90, Southwest can have you in San Francisco from San Diego in 5h 20m. The distance between San Diego and San Francisco is about 446 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as £20. Users have also found prices from £29 and £52 on Alaska Airlines and Southwest, respectively.

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

    Before booking your flight to San Francisco from San Diego, check out the most reliable airlines to get you to your destination on time: SWISS (64%), Air New Zealand (60%), Lufthansa( 60%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to San Francisco 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 Diego to San Francisco?

    Currently, October is the cheapest month in which you can book a flight from San Diego to San Francisco (average of £101). Flying from San Diego to San Francisco in March is currently the most expensive (average of £192). 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 Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Newark
Bodega Bay
South San Francisco
Sunnyvale

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Why should you use Cheapflights to find cheap flight tickets from San Diego to San Francisco?

Cheapflights helps you find that perfect flight to San Francisco from San Diego by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from San Diego to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from San Diego today and book when prices fit your budget.

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