Cheap flights from San Francisco to San Diego from C$ 55

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
16 Nov — 23 Nov1
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 Monday or Tuesday and return on a Friday

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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 17 October 2025.

Sat 15/111:55 p.m.SFO - SAN
Nonstop1h 30mSouthwest
Sun 16/117:00 a.m.SAN - SFO
Nonstop1h 45mSouthwest
Deal found 15/10C$ 108
Thu 13/115:00 a.m.SFO - SAN
1 stop5h 30mSouthwest
Mon 17/118:10 a.m.SAN - SFO
Nonstop1h 45mSouthwest
Deal found 15/10C$ 122
Thu 6/117:00 a.m.SFO - SAN
Nonstop1h 40mAlaska Airlines
Sat 8/118:02 p.m.SAN - SFO
Nonstop1h 53mAlaska Airlines
Deal found 15/10C$ 125
Thu 4/127:00 a.m.SFO - SAN
Nonstop1h 39mAlaska Airlines
Thu 4/1212:31 p.m.SAN - SFO
Nonstop1h 44mAlaska Airlines
Deal found 16/10C$ 129
Sat 8/1110:35 p.m.SFO - SAN
Nonstop1h 38mUnited Airlines
Sun 9/116:15 a.m.SAN - SFO
Nonstop1h 47mUnited Airlines
Deal found 15/10C$ 133
Thu 4/128:09 a.m.SFO - SAN
Nonstop1h 37mAlaska Airlines
Sat 6/126:15 a.m.SAN - SFO
Nonstop1h 51mAlaska Airlines
Deal found 15/10C$ 136
Tue 11/117:45 a.m.SFO - SAN
Nonstop1h 30mSouthwest
Sat 15/116:35 a.m.SAN - SFO
1 stop5h 25mSouthwest
Deal found 16/10C$ 139
Mon 8/123:15 p.m.SFO - SAN
2 stops5h 55mSouthwest
Wed 10/126:20 a.m.SAN - SFO
1 stop5h 10mSouthwest
Deal found 15/10C$ 143
Thu 13/115:50 a.m.SFO - SAN
Nonstop1h 30mSouthwest
Sat 15/116:35 a.m.SAN - SFO
2 stops7h 05mSouthwest
Deal found 15/10C$ 146
Tue 9/127:00 a.m.SFO - SAN
Nonstop1h 39mAlaska Airlines
Wed 24/129:10 a.m.SAN - SFO
Nonstop1h 54mAlaska Airlines
Deal found 15/10C$ 150
Sat 1/112:48 p.m.SFO - SAN
Nonstop1h 42mAlaska Airlines
Sat 8/118:02 p.m.SAN - SFO
Nonstop1h 53mAlaska Airlines
Deal found 14/10C$ 153

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 17 October 2025.

Round-trip from

C$ 108

One-way from

C$ 55

Popular in

September

Cheapest in

January

Average price

C$ 234

Good one-way deal

C$ 57 or less
United Airlines
  • United Airlines
  • 13/12-14/12
  • Nonstop
  • 3h 25m total
  • San Francisco to San Diego
United Airlines
  • United Airlines
  • 9/11
  • Nonstop
  • 1h 36m total
  • San Francisco to San Diego
Highest demand for flights based on searches. 13% potential increase in price (C$ 43 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
Average for round-trip flights in October 2025
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 17 October 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

Sun 9/11

5:50 a.m.-7:20 a.m.

Nonstop1h 30m

San Diego

Sun 16/11

7:00 a.m.-8:45 a.m.

Nonstop1h 45m

C$ 108

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 6/11

6:30 a.m.-8:06 a.m.

Nonstop1h 36m

San Diego

Sun 9/11

6:15 a.m.-8:02 a.m.

Nonstop1h 47m

C$ 108

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 15/11

1:55 p.m.-3:25 p.m.

Nonstop1h 30m

San Diego

Sun 16/11

7:00 a.m.-8:45 a.m.

Nonstop1h 45m

C$ 108

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 13/11

5:00 a.m.-10:30 a.m.

1 stop5h 30m

San Diego

Mon 17/11

8:10 a.m.-9:55 a.m.

Nonstop1h 45m

C$ 122

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 6/11

5:50 a.m.-7:20 a.m.

Nonstop1h 30m

San Diego

Mon 10/11

5:45 p.m.-10:55 p.m.

1 stop5h 10m

C$ 122

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 12/11

10:35 a.m.-12:15 p.m.

Nonstop1h 40m

San Diego

Wed 19/11

8:08 p.m.-10:01 p.m.

Nonstop1h 53m

C$ 125

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 4/12

11:35 a.m.-4:12 p.m.

1 stop4h 37m

San Diego

Sat 6/12

6:15 a.m.-8:06 a.m.

Nonstop1h 51m

C$ 159

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Fri 31/10

10:35 p.m.-12:13 a.m.

Nonstop1h 38m

San Diego

Sun 2/11

5:15 a.m.-7:02 a.m.

Nonstop1h 47m

C$ 164

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Mon 15/12

11:35 a.m.-6:30 a.m.

1 stop18h 55m

San Diego

Wed 17/12

6:15 a.m.-8:06 a.m.

Nonstop1h 51m

C$ 164

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 13/11

7:00 a.m.-8:40 a.m.

Nonstop1h 40m

San Diego

Mon 17/11

10:09 p.m.-8:53 a.m.

1 stop10h 44m

C$ 168

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/10

Showing 1-10 of 24 results
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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 10 October 2025.

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, February is the cheapest month in which you can book a flight from San Francisco to San Diego (average of C$ 31). Flying from San Francisco to San Diego in September is currently the most expensive (average of C$ 90). 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 17 October 2025.

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?

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 17 October 2025.
Get a feel of what it's like to fly with Hawaiian Airlines and Frontier 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

Comfort

7.7

Entertainment

7.1

Food

7.0

Overall

7.8

Boarding

8.0

Reviews

1 / 20
6.0
Good

Thomas,Oct 2024

HNL - LAX

Seat Assignment Process which randomly assigns seats the day of the flight

Crew

8.5

Comfort

7.7

Entertainment

7.1

Food

7.0

Overall

7.8

Boarding

8.0

Reviews

1 / 20
6.0
Good

Thomas,Oct 2024

HNL - LAX

Seat Assignment Process which randomly assigns seats the day of the flight

Crew

8.5

Comfort

7.7

Entertainment

7.1

Food

7.0

Overall

7.8

Boarding

8.0

Reviews

1 / 20
6.0
Good

Thomas,Oct 2024

HNL - LAX

Seat Assignment Process which randomly assigns seats the day of the flight

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 40m on average. When it comes time to book airfare, you have a few options: there are 66 outbound flights from San Francisco to San Diego offered by 2 different airlines.

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

    Flying on Hawaiian Airlines is currently your cheapest option to San Diego, with prices starting at C$ 100. Another option worth looking into is Frontier, starting at C$ 107 round trip. Users have found that Hawaiian Airlines is 51% cheaper than the other options available to this destination.

  • 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: Air China (89%), United Airlines (84%), Air Canada( 83%).

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

    Looking at all options, your cheapest flight can be booked for C$ 54. While the most popular route (San Francisco - San Diego) can be booked for C$ 97 on average, our data indicates C$ 167 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, February is the cheapest month in which you can book a flight from San Francisco to San Diego (average of C$ 31). Flying from San Francisco to San Diego in September is currently the most expensive (average of C$ 90). 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
La Mesa
Borrego Springs
El Cajon

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from San Francisco to San Diego

Discover the top 2 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 629,999 searches. Data last updated 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapestC$ 100AverageC$ 159FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
FrontierCheapestC$ 107AverageC$ 121FlexibilityNo cancel feeOn-time62%
Search Frontier flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco to San Diego?

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

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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