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Cheap flights from San Francisco to San Diego from C$ 83

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 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
24 Aug — 31 Aug1
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 25 July 2026.

Sat 22/81:07 p.m.
SFO
-
SAN
Nonstop1h 43m
Frontier
Mon 24/88:59 p.m.
SAN
-
SFO
1 stop13h 26m
Frontier
Deal found 24/7C$ 121
Fri 21/81:07 p.m.
SFO
-
SAN
Nonstop1h 43m
Frontier
Mon 24/810:00 a.m.
SAN
-
SFO
Nonstop1h 52m
Frontier
Deal found 22/7C$ 124
Thu 10/98:25 a.m.
SFO
-
SAN
Nonstop1h 43m
Alaska Airlines
Thu 10/91:00 p.m.
SAN
-
SFO
Nonstop1h 45m
Alaska Airlines
Deal found 22/7C$ 130
Thu 20/82:00 p.m.
SFO
-
SAN
Nonstop1h 35m
Southwest
Mon 24/81:05 p.m.
SAN
-
SFO
Nonstop1h 35m
Southwest
Deal found 22/7C$ 137
Mon 17/810:23 p.m.
SFO
-
SAN
Nonstop1h 36m
Frontier
Mon 24/88:59 p.m.
SAN
-
SFO
1 stop13h 26m
Frontier
Deal found 20/7C$ 154
Tue 1/98:56 p.m.
SFO
-
SAN
2 stops23h 19m
Frontier
Tue 8/910:00 a.m.
SAN
-
SFO
Nonstop1h 52m
Frontier
Deal found 21/7C$ 156
Thu 13/85:10 a.m.
SFO
-
SAN
1 stop3h 40m
Southwest
Mon 17/86:40 p.m.
SAN
-
SFO
1 stop4h 45m
Southwest
Deal found 22/7C$ 165

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 25 July 2026.

Round-trip from

C$ 121

One-way from

C$ 83

Popular in

March

Cheapest in

October

Average price

C$ 297

Good one-way deal

C$ 82 or less
Frontier
  • Frontier
  • 22/8-24/8
  • 1 total stop
  • 15h 09m total
  • San Francisco to San Diego
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Southwest
  • Southwest
  • 20/8
  • Nonstop
  • 1h 35m total
  • San Francisco to San Diego
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from San Francisco to San Diego.
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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 25 July 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

Wed 23/9

8:40 a.m.-10:20 a.m.

Nonstop1h 40m

San Diego

Sat 26/9

12:45 p.m.-6:20 p.m.

1 stop5h 35m

C$ 151

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 22/8

6:25 a.m.-7:55 a.m.

Nonstop1h 30m

San Diego

Mon 24/8

3:30 p.m.-9:30 p.m.

2 stops6h 00m

C$ 158

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 23/9

5:50 a.m.-7:25 a.m.

Nonstop1h 35m

San Diego

Wed 30/9

3:30 p.m.-9:20 p.m.

2 stops5h 50m

C$ 158

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 4/11

10:25 a.m.-4:30 p.m.

2 stops6h 05m

San Diego

Tue 10/11

8:15 a.m.-1:25 p.m.

1 stop5h 10m

C$ 172

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 29/8

5:00 a.m.-11:15 a.m.

2 stops6h 15m

San Diego

Mon 31/8

5:05 p.m.-11:25 p.m.

1 stop6h 20m

C$ 172
Quickest round-trip

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 13/8

7:55 a.m.-9:35 a.m.

Nonstop1h 40m

San Diego

Fri 21/8

3:43 p.m.-5:22 p.m.

Nonstop1h 39m

C$ 179

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 28/11

8:45 p.m.-10:27 p.m.

Nonstop1h 42m

San Diego

Tue 1/12

9:30 a.m.-11:16 a.m.

Nonstop1h 46m

C$ 214

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 22/8

6:00 a.m.-1:10 p.m.

2 stops7h 10m

San Diego

Tue 25/8

10:20 a.m.-5:00 p.m.

2 stops6h 40m

C$ 221

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 27/8

8:35 p.m.-11:54 p.m.

1 stop3h 19m

San Diego

Sun 30/8

7:59 p.m.-11:55 p.m.

1 stop3h 56m

C$ 235

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 3/9

11:30 a.m.-8:00 p.m.

2 stops8h 30m

San Diego

Sun 6/9

8:30 a.m.-12:35 p.m.

1 stop4h 05m

C$ 235

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

To ensure you get the cheapest price possible for a flight from San Francisco to San Diego, you should look to book at least 81 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, October is the cheapest month in which you can book a flight from San Francisco to San Diego (average of C$ 237). Flying from San Francisco to San Diego in March is currently the most expensive (average of C$ 375). 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 25 July 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 at noon, which can drop the price by up to 60% versus a flight in the afternoon.

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

Airfare is below average for this route at the moment.

San Francisco to San Diego flights typically cost between C$ 178 and C$ 389 in August.
The cheapest round-trip price found within the last 5 days was C$ 121 on Frontier (22 Aug-24 Aug).

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?

    Within the past month, 4 users have taken a look at flights from San Francisco to San Diego.

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

    Southwest can get you from San Francisco to San Diego in just under 1h 30m. Your travel time will be generally consistent. There are 718 km between San Francisco and San Diego. Most flights are nonstop.

  • 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: Asiana Airlines (77%), United Airlines (75%), Lufthansa( 74%).

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

    Looking at all options, your cheapest flight can be booked for C$ 77. While the most popular route (San Francisco - San Diego) can be booked for C$ 107 on average, our data indicates C$ 197 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, October is the cheapest month in which you can book a flight from San Francisco to San Diego (average of C$ 237). Flying from San Francisco to San Diego in March is currently the most expensive (average of C$ 375). 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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Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to San Diego flexibly with Cheapflights today.

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