$59+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
Mar 13 — Mar 201
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 May or March, booked 63 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from San Diego to Palo Alto
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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 February 11, 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 February 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:00 am
SAN
- SFO
1 stop13h 25m
Frontier
Sun 5/310:03 am
SFO
- SAN
Nonstop1h 38m
Frontier
Deal found 2/10![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:36 pm
SAN
- SFO
1 stop11h 46m
Frontier
Mon 4/2010:03 am
SFO
- SAN
Nonstop1h 38m
Frontier
Deal found 2/10![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 2/9. 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 5/159:19 am
SAN
- SFO
Nonstop1h 47m
Frontier
Sun 5/1710:03 am
SFO
- SAN
Nonstop1h 38m
Frontier
Deal found 2/9![Frontier logo]()
$116
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 3/1010:09 pm
SAN
- SFO
Nonstop1h 50m
Alaska Airlines
Wed 3/116:40 am
SFO
- SAN
Nonstop1h 38m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 2/8. 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 3/184:55 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Wed 4/156:20 am
SFO
- SAN
2 stops11h 25m
Southwest
Deal found 2/8![Southwest logo]()
$118
This CheapOair deal was found by Cheapflights users on 2/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:19 am
SAN
- SFO
Nonstop1h 47m
Frontier
Sun 4/199:33 pm
SFO
- SAN
1 stop20h 07m
Frontier
Deal found 2/10![Frontier logo]()
$119
This Kissandfly.com deal was found by Cheapflights users on 2/9. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:15 am
SAN
- SFO
Nonstop1h 50m
Alaska Airlines
Sun 3/86:40 am
SFO
- SAN
Nonstop1h 38m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$121
This Southwest deal was found by Cheapflights users on 2/9. 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.
Tue 3/32:00 pm
SAN
- SFO
2 stops7h 20m
Southwest
Wed 3/45:30 am
SFO
- SAN
1 stop6h 20m
Southwest
Deal found 2/9![Southwest logo]()
$122
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Sat 3/146:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Sun 3/157:00 am
SFO
- SAN
Nonstop1h 40m
United Airlines
Deal found 2/8![United Airlines logo]()
$124
This Super.com deal was found by Cheapflights users on 2/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:19 am
SAN
- SFO
Nonstop1h 47m
Frontier
Sun 4/1910:03 am
SFO
- SAN
Nonstop1h 38m
Frontier
Deal found 2/10![Frontier logo]()
$125
This Trip.com deal was found by Cheapflights users on 2/8. 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 5/25:52 pm
SAN
- SFO
Nonstop1h 46m
Multiple Airlines
Sun 5/310:03 am
SFO
- SAN
Nonstop1h 38m
Multiple Airlines
Deal found 2/8![Multiple Airlines logo]()
$126
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 February 11, 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 February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/9. 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.
Tue 4/74:25 pm
SAN
- SFO
1 stop6h 20m
Southwest
Wed 4/295:55 am
SFO
- SAN
2 stops6h 45m
Southwest
Deal found 2/9![Southwest logo]()
$122
This United Airlines deal was found by Cheapflights users on 2/8. 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 3/56:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Mon 3/97:00 am
SFO
- SAN
Nonstop1h 40m
United Airlines
Deal found 2/8![United Airlines logo]()
$127
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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 3/1310:09 pm
SAN
- SFO
Nonstop1h 50m
Alaska Airlines
Mon 3/166:40 am
SFO
- SAN
Nonstop1h 38m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$142
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:36 am
SAN
- SFO
Nonstop1h 48m
United Airlines
Sun 4/266:00 am
SFO
- SAN
1 stop4h 20m
United Airlines
Deal found 2/10![United Airlines logo]()
$127
This Southwest deal was found by Cheapflights users on 2/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:35 pm
SAN
- SFO
1 stop5h 40m
Southwest
Tue 4/76:20 am
SFO
- SAN
2 stops11h 25m
Southwest
Deal found 2/7![Southwest logo]()
$128
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Sun 3/227:00 am
SFO
- SAN
Nonstop1h 40m
United Airlines
Deal found 2/10![United Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 2/10. 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.
Fri 4/178:45 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Mon 4/208:10 pm
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 2/10![Southwest logo]()
$137
This United Airlines deal was found by Cheapflights users on 2/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:21 pm
SAN
- SFO
Nonstop1h 43m
United Airlines
Sun 4/56:00 am
SFO
- SAN
1 stop4h 20m
United Airlines
Deal found 2/7![United Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 2/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:25 am
SAN
- SFO
Nonstop1h 50m
Southwest
Wed 3/45:30 am
SFO
- SAN
1 stop6h 20m
Southwest
Deal found 2/7![Southwest logo]()
$137
This Southwest deal was found by Cheapflights users on 2/10. 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.
Thu 3/128:55 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Sun 3/156:00 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 2/10![Southwest logo]()
$137
This Southwest deal was found by Cheapflights users on 2/8. 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 3/145:35 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Mon 3/166:00 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 2/8![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 2/9. 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 3/79:20 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Sun 3/86:00 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 2/9![Southwest logo]()
$142
Last-minute flights from San Diego to Palo AltoDiscover last-minute flight deals from San Diego to Palo Alto. Data last updated February 11, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Palo Alto. Data last updated February 11, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:30 am
SAN
- SFO
1 stop7h 53m
Multiple Airlines
Wed 3/46:40 am
SFO
- SAN
Nonstop1h 38m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$129
This Southwest deal was found by Cheapflights users on 2/9. 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.
Tue 3/32:00 pm
SAN
- SFO
2 stops7h 20m
Southwest
Wed 3/45:30 am
SFO
- SAN
1 stop6h 20m
Southwest
Deal found 2/9![Southwest logo]()
$122
This WAYA deal was found by Cheapflights users on 2/10. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:09 pm
SAN
- SFO
Nonstop1h 50m
Multiple Airlines
Thu 3/510:48 am
SFO
- SAN
1 stop4h 29m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$116
This United Airlines deal was found by Cheapflights users on 2/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Mon 3/97:10 pm
SFO
- SAN
Nonstop1h 43m
United Airlines
Deal found 2/7![United Airlines logo]()
$127
This Kissandfly.com deal was found by Cheapflights users on 2/9. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:15 am
SAN
- SFO
Nonstop1h 50m
Alaska Airlines
Sun 3/86:40 am
SFO
- SAN
Nonstop1h 38m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$121
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 3/77:55 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Sun 3/87:00 am
SFO
- SAN
Nonstop1h 40m
United Airlines
Deal found 2/9![United Airlines logo]()
$132
This Alaska Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 3/1010:09 pm
SAN
- SFO
Nonstop1h 50m
Alaska Airlines
Wed 3/116:40 am
SFO
- SAN
Nonstop1h 38m
Alaska Airlines
Deal found 2/8![Alaska Airlines logo]()
$117
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Sat 3/146:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Sun 3/157:00 am
SFO
- SAN
Nonstop1h 40m
United Airlines
Deal found 2/8![United Airlines logo]()
$124
This Southwest deal was found by Cheapflights users on 2/8. 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 3/184:55 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Wed 4/156:20 am
SFO
- SAN
2 stops11h 25m
Southwest
Deal found 2/8![Southwest logo]()
$118
This Southwest deal was found by Cheapflights users on 2/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:35 pm
SAN
- SFO
1 stop5h 40m
Southwest
Tue 4/76:20 am
SFO
- SAN
2 stops11h 25m
Southwest
Deal found 2/7![Southwest logo]()
$128
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 February 11, 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 February 11, 2026.
This Southwest deal was found by Cheapflights users on 2/9. 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.
Tue 3/245:35 pm
SAN
- SFO
1 stop5h 40m
Southwest
Deal found 2/9![Southwest logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/99:18 pm
SAN
- SFO
1 stop22h 51m
Frontier
Deal found 2/8![Frontier logo]()
$60
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Deal found 2/10![United Airlines logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:19 am
SAN
- SFO
Nonstop1h 47m
Frontier
Deal found 2/11![Frontier logo]()
$63
This Southwest deal was found by Cheapflights users on 2/9. 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 4/221:00 pm
SAN
- SFO
2 stops6h 55m
Southwest
Deal found 2/9![Southwest logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:54 pm
SAN
- SFO
1 stop20h 40m
Frontier
Deal found 2/10![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 2/278:20 pm
SAN
- SFO
1 stop21h 38m
Frontier
Deal found 2/9![Frontier logo]()
$67
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:15 am
SAN
- SFO
Nonstop1h 50m
United Airlines
Deal found 2/10![United Airlines logo]()
$69
This Southwest deal was found by Cheapflights users on 2/9. 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.
Tue 4/78:35 am
SAN
- SFO
2 stops10h 30m
Southwest
Deal found 2/9![Southwest logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Sun 3/86:33 pm
SAN
- SFO
1 stop27h 07m
Frontier
Deal found 2/8![Frontier logo]()
$71
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 February 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $114 (Kiwi.com) |
One-way from | $59 (Southwest) |
Popular in | November |
Cheapest in | May |
Average price | $168 |
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 February 11, 2026.
Use the filters below to find and compare flights from San Diego to Palo Alto that are best for you.
Fly from
San Diego
Fly to
Palo Alto
Route
Depart
Return
Price
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Tue 4/7
4:25 pm-10:45 pm
1 stop6h 20m
San Francisco
Wed 4/29
5:55 am-12:40 pm
2 stops6h 45m
$122
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 3/5
6:15 am-8:05 am
Nonstop1h 50m
San Francisco
Mon 3/9
7:00 am-8:40 am
Nonstop1h 40m
$127
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Sat 4/25
6:36 am-8:24 am
Nonstop1h 48m
San Francisco
Sun 4/26
6:00 am-10:20 am
1 stop4h 20m
$127
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Tue 3/31
5:35 pm-11:15 pm
1 stop5h 40m
San Francisco
Tue 4/7
6:20 am-5:45 pm
2 stops11h 25m
$128
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 3/19
6:15 am-8:05 am
Nonstop1h 50m
San Francisco
Sun 3/22
7:00 am-8:40 am
Nonstop1h 40m
$137
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Fri 4/17
8:45 pm-10:25 pm
Nonstop1h 40m
San Francisco
Mon 4/20
8:10 pm-9:45 pm
Nonstop1h 35m
$137
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 4/1
4:21 pm-6:04 pm
Nonstop1h 43m
San Francisco
Sun 4/5
6:00 am-10:20 am
1 stop4h 20m
$137
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Sun 3/1
6:25 am-8:15 am
Nonstop1h 50m
San Francisco
Wed 3/4
5:30 am-11:50 am
1 stop6h 20m
$137
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 3/12
8:55 pm-10:35 pm
Nonstop1h 40m
San Francisco
Sun 3/15
6:00 am-7:35 am
Nonstop1h 35m
$137
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Fri 3/13
10:09 pm-11:59 pm
Nonstop1h 50m
San Francisco
Mon 3/16
6:40 am-8:18 am
Nonstop1h 38m
$142
Showing 1-10 of 24 results
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
How far ahead should I book a flight from San Diego to Palo Alto?
Use this chart to determine the optimal time to book a round-trip flight from San Diego to Palo Alto. Price data was last updated on February 6, 2026.
The best time to book flights from San Diego to Palo Alto is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Diego to Palo Alto?
Currently, March is the cheapest month in which you can book a flight from San Diego to Palo Alto (average of $31). Flying from San Diego to Palo Alto in January is currently the most expensive (average of $100). 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 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 February 11, 2026.
It’s typically best to fly out from San Diego to Palo Alto in the afternoon. Doing so could potentially save you 30% on the flight price compared to flying in the morning, which is usually more expensive.
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 February 7, 2026.
Travelers seeking maximum savings on their San Diego to Palo Alto flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons 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 February 11, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Hawaiian 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.
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from San Diego to Palo Alto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Diego to Palo Alto
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Palo Alto by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Palo Alto by cabin class
Find flights from San Diego to Palo Alto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Palo Alto flights
Browse other San Diego and Palo Alto flight options. Last updated on February 11, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on February 11, 2026.
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San Diego to Palo Alto flights
Consider these flights traveling from San Diego to Palo Alto.
Top 9 airlines flying from San Diego to Palo Alto
Discover the top 9 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 February 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$22 | Average$93 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$28 | Average$130 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$29 | Average$89 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$57 | Average$190 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$58 | Average$184 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$77 | Average$191 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$88 | Average$156 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$116 | Average$195 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$197 | Average$361 | FlexibilityNo cancel fee | On-time71% |