Frontier's UpFront Plus seats guarantee an empty middle seat for more comfort.
Early check-in on Frontier helps secure your place due to frequent overbooking.
$39+ Cheap flights from San Diego to San Francisco (SAN - SFO)
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 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
Jun 17 — Jun 241
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Diego to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Diego to San Francisco are usually found in January or February, booked 51 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap 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 June 12, 2025.
Round-trip from | $57 (Southwest) |
|---|---|
One-way from | $39 (United Airlines) |
Popular in | August |
Cheapest in | January |
Average price | $148 |
Good round-trip deal | $118 or less |
Good one-way deal | $65 or less |
Find flight deals from San Diego to San Francisco
Cheapest flights from San Diego to San FranciscoExplore 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 June 12, 2025.
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 June 12, 2025.
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/98:35 pmSAN - SFO
Nonstop1h 35mSouthwest
Sat 7/126:40 pmSFO - SAN
Nonstop1h 30mSouthwest
Deal found 6/10![Southwest logo]()
$57
This Trip.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3010:11 pmSAN - SFO
Nonstop1h 39mHawaiian Airlines
Sun 8/36:00 amSFO - SAN
Nonstop1h 42mHawaiian Airlines
Deal found 6/11![Hawaiian Airlines logo]()
$69
This Trip.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/266:15 amSAN - SFO
Nonstop1h 45mAlaska Airlines
Mon 6/306:00 amSFO - SAN
Nonstop1h 42mAlaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$71
This Priceline deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2810:15 amSAN - SFO
Nonstop1h 52mFrontier
Sun 8/311:27 pmSFO - SAN
Nonstop1h 43mFrontier
Deal found 6/12![Frontier logo]()
$78
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:20 amSAN - SFO
Nonstop1h 38mUnited Airlines
Sat 8/910:35 pmSFO - SAN
Nonstop1h 40mUnited Airlines
Deal found 6/11![United Airlines logo]()
$82
This Trip.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/125:53 pmSAN - SFO
Nonstop1h 46mMultiple Airlines
Wed 7/167:20 amSFO - SAN
Nonstop1h 42mMultiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$86
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:40 pmSAN - SFO
1 stop5h 44mAmerican Airlines
Wed 10/18:46 amSFO - SAN
1 stop6h 35mAmerican Airlines
Deal found 6/11![American Airlines logo]()
$159
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/169:59 amSAN - SFO
1 stop4h 51mDelta
Wed 7/166:50 pmSFO - SAN
1 stop4h 04mDelta
Deal found 6/11![Delta logo]()
$171
Cheapflights Fare Finder
Customize 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from San Diego to San Francisco that are best for you.
Fly from
San Diego
Fly to
San Francisco
Route
Depart
Return
Price
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 7/9
8:35 pm-10:10 pm
Nonstop1h 35m
San Francisco
Sat 7/12
6:40 pm-8:10 pm
Nonstop1h 30m
$57
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 7/30
10:11 pm-11:50 pm
Nonstop1h 39m
San Francisco
Sun 8/3
6:00 am-7:42 am
Nonstop1h 42m
$69
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 6/26
6:15 am-8:00 am
Nonstop1h 45m
San Francisco
Mon 6/30
6:00 am-7:42 am
Nonstop1h 42m
$71
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 8/28
10:15 am-12:07 pm
Nonstop1h 52m
San Francisco
Sun 8/31
1:27 pm-3:10 pm
Nonstop1h 43m
$78
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 8/7
6:20 am-7:58 am
Nonstop1h 38m
San Francisco
Sat 8/9
10:35 pm-12:15 am
Nonstop1h 40m
$82
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Sat 7/12
5:53 pm-7:39 pm
Nonstop1h 46m
San Francisco
Wed 7/16
7:20 am-9:02 am
Nonstop1h 42m
$86
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 9/18
4:40 pm-10:24 pm
1 stop5h 44m
San Francisco
Wed 10/1
8:46 am-3:21 pm
1 stop6h 35m
$159
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 7/16
9:59 am-2:50 pm
1 stop4h 51m
San Francisco
Wed 7/16
6:50 pm-10:54 pm
1 stop4h 04m
$171
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Fri 6/20
6:20 am-7:58 am
Nonstop1h 38m
$39
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 10/23
12:18 pm-2:01 pm
Nonstop1h 43m
$42
Showing 1-10 of 16 results
The best insider tips for San Diego to San Francisco flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to San Francisco trip
Airlines
![Frontier]()
Frontier
![United Airlines]()
United Airlines
United's Economy Plus offers extra legroom, ideal for a comfortable short flight.
United's MileagePlus allows pooling miles, useful for family travel.
![Alaska Airlines]()
Alaska Airlines
Alaska's Premium Class offers extra legroom and free cocktails, enhancing short domestic flights.
Alaska's Wi-Fi is a flat fee, ideal for business travelers needing connectivity during flights.
Airports
Our travel experts
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 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 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 round-trip flight from San Diego to San Francisco. Price data was last updated on June 9, 2025.
To ensure you get the cheapest price possible for a flight from San Diego to San Francisco, you should look to book at least 37 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, January is the cheapest month in which you can book a flight from San Diego to San Francisco (average of $276). Flying from San Diego to San Francisco in June is currently the most expensive (average of $364). 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 June 12, 2025.
It’s typically best to fly out from San Diego to San Francisco at noon. Doing so could potentially save you 75% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from San Diego to San Francisco?
Use this chart to determine the cheapest time to fly round-trip from San Diego to San Francisco. Price data was last updated on June 8, 2025.
Travelers seeking maximum savings on their San Diego to San Francisco flight should consider departing on Friday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Diego to San Francisco
Explore weekly flight availability from San Diego to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.
The most flights from SAN to SFO are scheduled on a Thursday (86 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 on average).
Rainfall in San Francisco by month
Plan your trip to San Francisco by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.
Temperature in San Francisco by month
Plan your trip to San Francisco by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. 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 Francisco. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from San Diego to San Francisco by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.1
Comfort
7.8
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsRoseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Diego to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Top 9 airlines flying from San Diego to San Francisco
Discover the top 9 airlines that operate flights from San Diego to San Francisco. 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 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$27 | Average$78 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$28 | Average$105 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$37 | Average$87 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$57 | Average$172 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$67 | Average$188 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$88 | Average$196 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$97 | Average$177 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$164 | Average$347 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$180 | Average$196 | FlexibilityNo cancel fee | On-timeN/A |