$58+ Cheap flights from San Diego (SAN) to Palo Alto, CA
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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
Sep 7 — Sep 141
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Palo Alto 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 Palo Alto are usually found in October or August, booked 59 days in advance, depart on a Friday or Thursday and return on a Saturday
Cheap flight deals from San Diego to Palo Alto
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to Palo AltoExplore the most affordable flight options available from San Diego to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 8, 2026.
Explore the most affordable flight options available from San Diego to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 8, 2026.
This Super.com deal was found by Cheapflights users on 8/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:00 am -
Nonstop1h 52m
Sun 9/61:07 pm -
Nonstop1h 43m
Deal found 8/5![Frontier logo]()
$73
This Frontier deal was found by Cheapflights users on 8/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:28 am -
Nonstop1h 57m
Sat 9/124:31 pm -
Nonstop1h 48m
Deal found 8/2![Frontier logo]()
$74
This Super.com deal was found by Cheapflights users on 8/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:00 am -
Nonstop1h 52m
Mon 8/311:07 pm -
Nonstop1h 43m
Deal found 8/6![Frontier logo]()
$75
This Expedia deal was found by Cheapflights users on 8/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:00 am -
Nonstop1h 52m
Thu 8/271:07 pm -
Nonstop1h 43m
Deal found 8/5![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 8/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:00 am -
Nonstop1h 52m
Sun 9/61:07 pm -
Nonstop1h 43m
Deal found 8/2![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:28 am -
Nonstop1h 57m
Mon 9/214:31 pm -
Nonstop1h 48m
Deal found 8/3![Frontier logo]()
$78
This Expedia deal was found by Cheapflights users on 8/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:36 pm -
Nonstop1h 46m
Sun 10/185:52 pm -
Nonstop1h 45m
Deal found 8/5![Frontier logo]()
$79
This Trip.com deal was found by Cheapflights users on 8/2. 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 8/2710:00 am -
Nonstop1h 52m
Mon 8/319:27 am -
Nonstop1h 49m
Deal found 8/2![Multiple Airlines logo]()
$80
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:45 pm -
Nonstop1h 47m
Mon 8/1710:23 pm -
Nonstop1h 36m
Deal found 8/7![Frontier logo]()
$81
This Expedia deal was found by Cheapflights users on 8/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:00 pm -
Nonstop1h 45m
Mon 9/144:31 pm -
Nonstop1h 48m
Deal found 8/3![Multiple Airlines logo]()
$82
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:00 am -
Nonstop1h 52m
Sat 9/51:07 pm -
Nonstop1h 43m
Deal found 8/7![Frontier logo]()
$84
Best flights from San Diego to Palo AltoDiscover carefully curated flight deals from San Diego to Palo Alto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
Discover carefully curated flight deals from San Diego to Palo Alto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:51 pm -
Nonstop1h 42m
Sun 10/257:03 am -
Nonstop1h 42m
Deal found 8/2![Alaska Airlines logo]()
$117
This United Airlines deal was found by Cheapflights users on 8/2. 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.
Mon 8/247:41 pm -
Nonstop1h 50m
Thu 8/277:00 am -
Nonstop1h 43m
Deal found 8/2![United Airlines logo]()
$127
This Southwest deal was found by Cheapflights users on 8/6. 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.
Thu 9/33:20 pm -
1 stop7h 50m
Sun 9/68:20 am -
1 stop4h 35m
Deal found 8/6![Southwest logo]()
$152
This Delta deal was found by Cheapflights users on 8/3. 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.
Thu 9/1010:54 am -
1 stop5h 00m
Sun 9/137:19 pm -
1 stop4h 32m
Deal found 8/3![Delta logo]()
$157
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 am -
Nonstop1h 46m
Sun 10/118:20 am -
Nonstop1h 46m
Deal found 8/4![Alaska Airlines logo]()
$147
This Southwest deal was found by Cheapflights users on 8/3. 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.
Thu 9/107:00 pm -
Nonstop1h 35m
Sat 9/126:00 am -
2 stops6h 25m
Deal found 8/3![Southwest logo]()
$152
This Southwest deal was found by Cheapflights users on 8/3. 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 8/267:20 am -
2 stops7h 20m
Wed 8/266:00 pm -
Nonstop1h 35m
Deal found 8/3![Southwest logo]()
$152
This Southwest deal was found by Cheapflights users on 8/4. 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.
Sat 9/1910:15 am -
2 stops6h 00m
Mon 9/217:00 am -
1 stop4h 15m
Deal found 8/4![Southwest logo]()
$162
This Southwest deal was found by Cheapflights users on 8/6. 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.
Thu 9/108:00 am -
2 stops5h 30m
Sun 9/136:00 am -
Nonstop1h 35m
Deal found 8/6![Southwest logo]()
$162
This Southwest deal was found by Cheapflights users on 8/6. 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.
Sat 10/105:15 pm -
1 stop4h 20m
Tue 10/1310:20 am -
2 stops6h 55m
Deal found 8/6![Southwest logo]()
$162
Last-minute flights from San Diego to Palo AltoDiscover last-minute flight deals from San Diego to Palo Alto. Data last updated August 8, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Palo Alto. Data last updated August 8, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:45 pm -
Nonstop1h 47m
Mon 8/1710:23 pm -
Nonstop1h 36m
Deal found 8/7![Frontier logo]()
$81
This Frontier deal was found by Cheapflights users on 8/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:00 am -
Nonstop1h 52m
Wed 8/261:07 pm -
Nonstop1h 43m
Deal found 8/2![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 8/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:00 am -
Nonstop1h 52m
Mon 8/311:07 pm -
Nonstop1h 43m
Deal found 8/6![Frontier logo]()
$75
This Expedia deal was found by Cheapflights users on 8/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:00 am -
Nonstop1h 52m
Thu 8/271:07 pm -
Nonstop1h 43m
Deal found 8/5![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 8/2. 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 8/2710:00 am -
Nonstop1h 52m
Mon 8/319:27 am -
Nonstop1h 49m
Deal found 8/2![Multiple Airlines logo]()
$80
This Super.com deal was found by Cheapflights users on 8/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:00 am -
Nonstop1h 52m
Sun 9/61:07 pm -
Nonstop1h 43m
Deal found 8/5![Frontier logo]()
$73
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:00 am -
Nonstop1h 52m
Sat 9/51:07 pm -
Nonstop1h 43m
Deal found 8/7![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 8/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:00 am -
Nonstop1h 52m
Sun 9/61:07 pm -
Nonstop1h 43m
Deal found 8/2![Frontier logo]()
$77
This Expedia deal was found by Cheapflights users on 8/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:00 pm -
Nonstop1h 45m
Mon 9/144:31 pm -
Nonstop1h 48m
Deal found 8/3![Multiple Airlines logo]()
$82
This Frontier deal was found by Cheapflights users on 8/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:28 am -
Nonstop1h 57m
Sat 9/124:31 pm -
Nonstop1h 48m
Deal found 8/2![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:28 am -
Nonstop1h 57m
Mon 9/214:31 pm -
Nonstop1h 48m
Deal found 8/3![Frontier logo]()
$78
One-way flights from San Diego to Palo AltoSearch for one-way flight options from San Diego to Palo Alto. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
Search for one-way flight options from San Diego to Palo Alto. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
This Super.com deal was found by Cheapflights users on 8/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:28 am -
Nonstop1h 57m
Deal found 8/7![Frontier logo]()
$58
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:59 pm -
Nonstop1h 49m
Deal found 8/2![Alaska Airlines logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:03 pm -
1 stop17h 26m
Deal found 8/2![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:43 pm -
1 stop12h 46m
Deal found 8/3![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:59 pm -
1 stop13h 26m
Deal found 8/2![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:43 pm -
1 stop26h 08m
Deal found 8/3![Frontier logo]()
$64
This Trip.com deal was found by Cheapflights users on 8/7. 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 9/177:00 am -
Nonstop1h 46m
Deal found 8/7![Alaska Airlines logo]()
$65
This Super.com deal was found by Cheapflights users on 8/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:00 am -
Nonstop1h 52m
Deal found 8/4![Frontier logo]()
$67
This Southwest deal was found by Cheapflights users on 8/3. 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 9/26:20 am -
Nonstop1h 40m
Deal found 8/3![Southwest logo]()
$69
This Super.com deal was found by Cheapflights users on 8/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:45 pm -
1 stop8h 33m
Deal found 8/3![Frontier logo]()
$70
Find flight deals from San Diego to Palo Alto
Keep the following information in mind while searching for San Diego to Palo Alto flight deals. Data was last updated August 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $73 (Super.com) |
One-way from | $58 (Super.com) |
Popular in | March |
Cheapest in | October |
Average price | $163 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Palo Alto 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 August 8, 2026.
Use the filters below to find and compare flights from San Diego to Palo Alto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Fri 10/23
6:51 pm-8:33 pm
Nonstop1h 42m
San Francisco
Sun 10/25
7:03 am-8:45 am
Nonstop1h 42m
$117
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Mon 8/24
7:41 pm-9:31 pm
Nonstop1h 50m
San Francisco
Thu 8/27
7:00 am-8:43 am
Nonstop1h 43m
$127
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Mon 9/28
7:00 am-8:46 am
Nonstop1h 46m
San Francisco
Sun 10/11
8:20 am-10:06 am
Nonstop1h 46m
$147
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 9/3
3:20 pm-11:10 pm
1 stop7h 50m
San Francisco
Sun 9/6
8:20 am-12:55 pm
1 stop4h 35m
$152
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 9/10
7:00 pm-8:35 pm
Nonstop1h 35m
San Francisco
Sat 9/12
6:00 am-12:25 pm
2 stops6h 25m
$152
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Wed 8/26
7:20 am-2:40 pm
2 stops7h 20m
San Francisco
Wed 8/26
6:00 pm-7:35 pm
Nonstop1h 35m
$152
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 9/10
10:54 am-3:54 pm
1 stop5h 00m
San Francisco
Sun 9/13
7:19 pm-11:51 pm
1 stop4h 32m
$157
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Sat 9/19
10:15 am-4:15 pm
2 stops6h 00m
San Francisco
Mon 9/21
7:00 am-11:15 am
1 stop4h 15m
$162
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Thu 9/10
8:00 am-1:30 pm
2 stops5h 30m
San Francisco
Sun 9/13
6:00 am-7:35 am
Nonstop1h 35m
$162
San DiegoSan Francisco
SAN San Diego - SFO San Francisco
SANSFO
San Diego
Sat 10/10
5:15 pm-9:35 pm
1 stop4h 20m
San Francisco
Tue 10/13
10:20 am-5:15 pm
2 stops6h 55m
$162
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from San Diego to Palo Alto
Have a flexible travel schedule? Discover the best time to fly to Palo Alto from San Diego with our price prediction graph.
SAN-SFO
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 Palo Alto
SAN-P4L
SAN-SFO
What is the cheapest time of day to fly from SAN to P4L?
Find hourly flight availability from San Diego to Palo Alto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 8, 2026.
It’s typically best to fly out from San Diego to Palo Alto at noon. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from San Diego to Palo Alto
Explore weekly flight availability from San Diego to Palo Alto. 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 August 8, 2026.
The most flights from SAN to P4L are scheduled on a Thursday (85 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (29 on average).
How much does it cost to fly round-trip from San Diego to Palo Alto?
Airfare is below average for this route at the moment.
San Diego to Palo Alto flights typically cost between $111 and $228 in August.The cheapest round-trip price found within the last 5 days was $73 on Frontier (Aug 29-Sep 6).
What is the cheapest day to fly from San Diego to Palo Alto?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Palo Alto. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their San Diego to Palo Alto flight should consider departing on Saturday evenings 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.
Reviews of airlines servicing Palo Alto
Get insights into the airlines that provide service to Palo Alto. 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 Palo Alto. Reviews last updated August 8, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andHawaiian Airlines from San Diego to Palo Alto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
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San Diego and Palo Alto flights
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Top 7 airlines flying from San Diego to Palo Alto
Discover the top 7 airlines that operate flights from San Diego to Palo Alto. 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 August 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$43 | Average$114 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$58 | Average$152 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$68 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$77 | Average$243 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$97 | Average$210 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$102 | Average$219 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$217 | Average$387 | FlexibilityNo cancel fee | On-time71% |