Cheap flights from San Francisco to San Diego from C$ 81

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
21 May — 28 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to San Diego

Enter your travel dates to find the best prices.

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 21 April 2026.

Wed 27/58:15 a.m.
SFO
-
SAN
Nonstop1h 44m
United Airlines
Sat 30/51:39 p.m.
SAN
-
SFO
Nonstop1h 40m
United Airlines
Deal found 20/4C$ 160
Fri 5/66:45 a.m.
SFO
-
SAN
Nonstop1h 35m
Southwest
Mon 8/68:10 p.m.
SAN
-
SFO
Nonstop1h 40m
Southwest
Deal found 20/4C$ 162
Sat 9/56:00 a.m.
SFO
-
SAN
Nonstop1h 35m
Southwest
Tue 12/54:25 p.m.
SAN
-
SFO
2 stops6h 50m
Southwest
Deal found 17/4C$ 167
Tue 12/57:20 a.m.
SFO
-
SAN
2 stops6h 50m
Southwest
Wed 13/58:20 p.m.
SAN
-
SFO
Nonstop1h 45m
Southwest
Deal found 21/4C$ 171
Sat 16/510:00 a.m.
SFO
-
SAN
1 stop6h 00m
Southwest
Wed 20/56:30 a.m.
SAN
-
SFO
Nonstop1h 45m
Southwest
Deal found 20/4C$ 173
Thu 28/56:00 a.m.
SFO
-
SAN
Nonstop1h 35m
Southwest
Sat 30/57:15 a.m.
SAN
-
SFO
1 stop4h 35m
Southwest
Deal found 20/4C$ 175
Wed 12/86:50 a.m.
SFO
-
SAN
1 stop5h 15m
Southwest
Sat 15/86:55 a.m.
SAN
-
SFO
1 stop4h 40m
Southwest
Deal found 21/4C$ 176
Wed 27/55:55 a.m.
SFO
-
SAN
2 stops6h 45m
Southwest
Sat 30/57:15 a.m.
SAN
-
SFO
1 stop4h 35m
Southwest
Deal found 17/4C$ 180
Sat 30/53:05 p.m.
SFO
-
SAN
1 stop8h 20m
Southwest
Thu 4/67:00 a.m.
SAN
-
SFO
Nonstop1h 40m
Southwest
Deal found 21/4C$ 182
Sat 30/56:00 a.m.
SFO
-
SAN
Nonstop1h 35m
Southwest
Mon 1/66:20 a.m.
SAN
-
SFO
Nonstop1h 50m
Southwest
Deal found 20/4C$ 183
Wed 27/52:50 p.m.
SFO
-
SAN
1 stop6h 40m
Southwest
Thu 28/56:20 a.m.
SAN
-
SFO
Nonstop1h 50m
Southwest
Deal found 21/4C$ 187

Find 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 21 April 2026.

Round-trip from

C$ 160

One-way from

C$ 81

Popular in

March

Cheapest in

July

Average price

C$ 307

Good one-way deal

C$ 168 or less
Alaska Airlines
  • Alaska Airlines
  • 4/6-9/6
  • Nonstop
  • 3h 30m total
  • San Francisco to San Diego
Southwest
  • Southwest
  • 2/6
  • 1 total stop
  • 5h 40m total
  • San Francisco to San Diego
Highest demand for flights based on searches. 21% potential increase in price (C$ 100 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 13 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a one-way flight from San Francisco to San Diego.

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 21 April 2026.
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

Cheapest round-trip

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 2/6

10:05 a.m.-11:40 a.m.

Nonstop1h 35m

San Diego

Tue 9/6

6:40 a.m.-2:15 p.m.

2 stops7h 35m

C$ 180
Quickest round-trip

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sun 17/5

6:16 a.m.-7:58 a.m.

Nonstop1h 42m

San Diego

Wed 20/5

9:01 a.m.-10:49 a.m.

Nonstop1h 48m

C$ 201

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Mon 11/5

2:43 p.m.-6:03 p.m.

1 stop3h 20m

San Diego

Tue 12/5

3:15 p.m.-7:20 p.m.

1 stop4h 05m

C$ 214

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 6/6

6:00 a.m.-7:35 a.m.

Nonstop1h 35m

San Diego

Mon 8/6

8:15 a.m.-1:40 p.m.

2 stops5h 25m

C$ 242

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Mon 1/6

5:05 a.m.-9:40 a.m.

1 stop4h 35m

San Diego

Tue 9/6

6:40 a.m.-2:15 p.m.

2 stops7h 35m

C$ 255

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Fri 15/5

10:40 p.m.-12:28 a.m.

Nonstop1h 48m

San Diego

Mon 18/5

6:05 p.m.-9:44 p.m.

1 stop3h 39m

C$ 294

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 23/9

1:35 p.m.-6:40 p.m.

1 stop5h 05m

San Diego

Wed 28/10

11:05 a.m.-6:15 p.m.

2 stops7h 10m

C$ 317

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Mon 11/5

3:00 p.m.-9:10 p.m.

2 stops6h 10m

San Diego

Wed 13/5

6:30 p.m.-10:45 p.m.

1 stop4h 15m

C$ 322

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 28/7

12:10 p.m.-8:20 p.m.

2 stops8h 10m

San Diego

Fri 31/7

6:55 p.m.-12:30 a.m.

2 stops5h 35m

C$ 324
Cheapest one-way

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 17/6

5:00 a.m.-10:50 a.m.

1 stop5h 50m

C$ 81

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/4

Showing 1-10 of 21 resultsSorted by cheapest first
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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 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.

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 round-trip flight from San Francisco to San Diego. Price data was last updated on 17 April 2026.

To ensure you get the cheapest price possible for a flight from San Francisco to San Diego, you should look to book at least 72 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 Francisco to San Diego?

Currently, July is the cheapest month in which you can book a flight from San Francisco to San Diego (average of C$ 183). Flying from San Francisco to San Diego in March is currently the most expensive (average of C$ 359). 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 21 April 2026.

When flying from San Francisco to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 62% versus a flight at noon.

How much does it cost to fly round-trip from San Francisco to San Diego?

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

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

    Southwest and United Airlines can get you from San Francisco to San Diego in just under 1h 35m. Your travel time can differ by up to 2h 34m. There are 718 km between San Francisco and San Diego. 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 Francisco to San Diego one-way?

    The cheapest airlines for a one-way flight from San Francisco to San Diego are Frontier (C$ 38), Southwest (C$ 55), and Alaska Airlines (C$ 74).

  • 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: Iberia (100%), Copa Airlines (93%), Air China( 88%).

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

    Looking at all options, your cheapest flight can be booked for C$ 60. While the most popular route (San Francisco - San Diego) can be booked for C$ 119 on average, our data indicates C$ 259 when flying from San Francisco to San Diego.

  • 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, July is the cheapest month in which you can book a flight from San Francisco to San Diego (average of C$ 183). Flying from San Francisco to San Diego in March is currently the most expensive (average of C$ 359). 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
El Cajon
La Mesa
Borrego Springs

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