Cheap flights from San Diego to San Francisco from £44

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
17 May — 24 May1
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 17 April 2026.

Wed 6/510:55
SAN
-
SFO
Nonstop1h 40m
Southwest
Wed 6/514:50
SFO
-
SAN
1 stop4h 35m
Southwest
Deal found 12/4£79
Tue 12/516:25
SAN
-
SFO
2 stops6h 50m
Southwest
Tue 19/519:40
SFO
-
SAN
Nonstop1h 45m
Southwest
Deal found 13/4£83
Wed 13/506:30
SAN
-
SFO
Nonstop1h 45m
Southwest
Wed 20/510:30
SFO
-
SAN
1 stop7h 55m
Southwest
Deal found 13/4£83
Sat 9/517:15
SAN
-
SFO
Nonstop1h 40m
Southwest
Wed 13/505:40
SFO
-
SAN
1 stop5h 40m
Southwest
Deal found 16/4£86
Wed 6/516:25
SAN
-
SFO
2 stops6h 50m
Southwest
Sat 9/516:10
SFO
-
SAN
Nonstop1h 35m
Southwest
Deal found 14/4£90
Wed 6/516:25
SAN
-
SFO
2 stops6h 50m
Southwest
Tue 12/507:20
SFO
-
SAN
2 stops7h 00m
Southwest
Deal found 13/4£94
Mon 1/619:15
SAN
-
SFO
Nonstop2h 01m
Frontier
Mon 8/622:01
SFO
-
SAN
Nonstop1h 43m
Frontier
Deal found 17/4£96
Sat 6/616:15
SAN
-
SFO
1 stop7h 15m
Southwest
Tue 9/615:35
SFO
-
SAN
1 stop4h 45m
Southwest
Deal found 16/4£97
Sat 30/507:15
SAN
-
SFO
1 stop4h 35m
Southwest
Sat 30/513:50
SFO
-
SAN
1 stop6h 20m
Southwest
Deal found 14/4£101
Sat 16/508:35
SAN
-
SFO
2 stops8h 50m
Southwest
Sat 23/513:50
SFO
-
SAN
1 stop6h 20m
Southwest
Deal found 15/4£105
Sat 9/514:25
SAN
-
SFO
Nonstop1h 45m
Southwest
Mon 11/506:00
SFO
-
SAN
Nonstop1h 35m
Southwest
Deal found 13/4£108

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 17 April 2026.

Round-trip from

£79

One-way from

£44

Popular in

March

Cheapest in

July

Average price

£123

Good one-way deal

£117 or less
Southwest
  • Southwest
  • 6/5-6/5
  • 1 total stop
  • 6h 15m total
  • San Diego to San Francisco
Southwest
  • Southwest
  • 5/5
  • 1 total stop
  • 4h 15m total
  • San Diego to San Francisco
Highest demand for flights based on searches. 20% potential increase in price (£23 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in April 2026
Price to beat on a one-way flight from San Diego to San Francisco.

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 17 April 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

Wed 27/5

15:05-23:15

1 stop8h 10m

San Francisco

Wed 3/6

07:40-09:15

Nonstop1h 35m

£83

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 6/5

16:25-23:15

2 stops6h 50m

San Francisco

Sat 9/5

16:10-17:45

Nonstop1h 35m

£90

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 16/5

08:35-17:25

2 stops8h 50m

San Francisco

Tue 19/5

14:50-19:25

1 stop4h 35m

£120

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 9/5

17:15-18:55

Nonstop1h 40m

San Francisco

Mon 11/5

15:00-21:10

2 stops6h 10m

£120
Fastest return journey

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 16/5

06:20-08:08

Nonstop1h 48m

San Francisco

Sat 16/5

16:41-18:33

Nonstop1h 52m

£121

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Mon 18/5

18:05-21:34

1 stop3h 29m

San Francisco

Sat 23/5

22:42-00:30

Nonstop1h 48m

£125

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Fri 29/5

06:45-12:35

2 stops5h 50m

San Francisco

Sat 30/5

06:00-07:35

Nonstop1h 35m

£134
Cheapest one-way

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 18/8

12:20-19:15

2 stops6h 55m

£47

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 20/5

18:45-22:23

1 stop3h 38m

£58

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Mon 11/5

18:45-22:23

1 stop3h 38m

£73

Flights are sorted by cheapest return flights first.

Deals found on 12/4

Showing 1-10 of 19 resultsSorted by cheapest first
1
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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?

Use this chart to determine the optimal time to book a return flight from San Diego to San Francisco. Price data was last updated on 10 April 2026.

To ensure you get the cheapest price possible for a flight from San Diego to San Francisco, you should look to book at least 90 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, July is the cheapest month in which you can book a flight from San Diego to San Francisco (average of £91). Flying from San Diego to San Francisco in March is currently the most expensive (average of £190). 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 17 April 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 £108, Southwest can have you in San Francisco from San Diego in 1h 46m. 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 £19. Users have also found prices from £28 and £50 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: Iberia (88%), Lufthansa (80%), Copa Airlines( 80%).

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

    On average you can expect to pay £194 for a flight from San Diego to San Francisco. The cheapest flight overall is £48 while the most popular route, (San Diego - San Francisco) is currently priced at £55.

  • 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, July is the cheapest month in which you can book a flight from San Diego to San Francisco (average of £91). Flying from San Diego to San Francisco in March is currently the most expensive (average of £190). 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
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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