$55+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
May 8 — May 151
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 May or July, booked 90 days in advance, depart on a Friday or Thursday and return on a Tuesday
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 April 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 April 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:19 am
SAN
- SFO
Nonstop1h 52m
Frontier
Sun 5/310:29 am
SFO
- SAN
1 stop21h 17m
Frontier
Deal found 4/4![Frontier logo]()
$104
This Expedia deal was found by Cheapflights users on 4/3. 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.
Tue 5/512:30 pm
SAN
- SFO
Nonstop1h 43m
Multiple Airlines
Fri 5/89:56 pm
SFO
- SAN
Nonstop1h 46m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$105
This Trip.com deal was found by Cheapflights users on 4/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:17 pm
SAN
- SFO
Nonstop1h 44m
Multiple Airlines
Wed 5/2710:01 pm
SFO
- SAN
Nonstop1h 43m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$106
This Southwest deal was found by Cheapflights users on 4/3. 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.
Sat 5/95:15 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Tue 5/193:15 pm
SFO
- SAN
1 stop5h 45m
Southwest
Deal found 4/3![Southwest logo]()
$107
This iWofly deal was found by Cheapflights users on 4/7. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:15 pm
SAN
- SFO
Nonstop2h 01m
Frontier
Sat 5/3010:01 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Deal found 4/7![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 4/5. 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.
Wed 7/17:31 pm
SAN
- SFO
Nonstop1h 50m
Frontier
Mon 7/610:06 pm
SFO
- SAN
Nonstop1h 43m
Frontier
Deal found 4/5![Frontier logo]()
$109
This Trip.com deal was found by Cheapflights users on 4/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:45 pm
SAN
- SFO
Nonstop1h 46m
Alaska Airlines
Tue 5/266:16 am
SFO
- SAN
Nonstop1h 42m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$110
This Super.com deal was found by Cheapflights users on 4/6. 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 5/56:44 pm
SAN
- SFO
Nonstop1h 52m
Frontier
Sat 5/167:01 pm
SFO
- SAN
Nonstop1h 51m
Frontier
Deal found 4/6![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:10 pm
SAN
- SFO
Nonstop2h 01m
Frontier
Fri 5/159:56 pm
SFO
- SAN
Nonstop1h 46m
Frontier
Deal found 4/6![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 4/3. 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.
Sat 4/252:31 pm
SAN
- SFO
Nonstop1h 41m
Multiple Airlines
Sun 4/269:58 am
SFO
- SAN
Nonstop1h 42m
Multiple Airlines
Deal found 4/3![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:10 pm
SAN
- SFO
Nonstop2h 01m
Frontier
Sun 5/109:56 pm
SFO
- SAN
Nonstop1h 46m
Frontier
Deal found 4/4![Frontier logo]()
$115
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 April 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 April 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/4. 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 5/43:35 pm
SAN
- SFO
Nonstop1h 46m
Alaska Airlines
Wed 5/611:10 am
SFO
- SAN
Nonstop1h 49m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$147
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:25 pm
SAN
- SFO
2 stops6h 50m
Southwest
Sat 5/91:50 pm
SFO
- SAN
2 stops7h 10m
Southwest
Deal found 4/5![Southwest logo]()
$147
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:45 pm
SAN
- SFO
1 stop3h 38m
Delta
Sat 5/164:55 pm
SFO
- SAN
1 stop6h 20m
Delta
Deal found 4/5![Delta logo]()
$157
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:45 am
SAN
- SFO
Nonstop1h 46m
United Airlines
Fri 8/217:00 am
SFO
- SAN
1 stop4h 35m
United Airlines
Deal found 4/3![United Airlines logo]()
$172
This Southwest deal was found by Cheapflights users on 4/3. 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 4/308:45 pm
SAN
- SFO
Nonstop1h 40m
Southwest
Wed 5/68:55 am
SFO
- SAN
2 stops7h 25m
Southwest
Deal found 4/3![Southwest logo]()
$152
This Southwest deal was found by Cheapflights users on 4/3. 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 5/64:25 pm
SAN
- SFO
2 stops6h 50m
Southwest
Thu 5/76:00 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 4/3![Southwest logo]()
$152
This Delta deal was found by Cheapflights users on 4/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:15 pm
SAN
- SFO
1 stop6h 04m
Delta
Sun 5/104:55 pm
SFO
- SAN
1 stop6h 20m
Delta
Deal found 4/6![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/6. 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.
Fri 5/156:20 am
SAN
- SFO
Nonstop1h 50m
Southwest
Sat 5/161:50 pm
SFO
- SAN
2 stops7h 10m
Southwest
Deal found 4/6![Southwest logo]()
$172
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1410:59 am
SAN
- SFO
1 stop4h 57m
Delta
Fri 5/159:30 am
SFO
- SAN
1 stop5h 27m
Delta
Deal found 4/7![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:30 pm
SAN
- SFO
1 stop4h 45m
Southwest
Thu 5/73:00 pm
SFO
- SAN
2 stops6h 10m
Southwest
Deal found 4/5![Southwest logo]()
$172
This Southwest deal was found by Cheapflights users on 4/4. 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.
Tue 5/196:30 pm
SAN
- SFO
1 stop4h 45m
Southwest
Tue 5/267:20 am
SFO
- SAN
2 stops6h 50m
Southwest
Deal found 4/4![Southwest logo]()
$182
This Southwest deal was found by Cheapflights users on 4/6. 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 5/216:20 am
SAN
- SFO
Nonstop1h 50m
Southwest
Thu 5/285:05 am
SFO
- SAN
1 stop4h 35m
Southwest
Deal found 4/6![Southwest logo]()
$187
Last-minute flights from San Diego to Palo AltoDiscover last-minute flight deals from San Diego to Palo Alto. Data last updated April 8, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Palo Alto. Data last updated April 8, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:10 am
SAN
- SFO
1 stop13h 13m
Frontier
Mon 4/279:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/4![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 4/7. 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.
Wed 4/152:12 pm
SAN
- SFO
1 stop4h 33m
Frontier
Mon 4/209:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/7![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:12 pm
SAN
- SFO
1 stop4h 33m
Frontier
Thu 4/239:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/7![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:19 am
SAN
- SFO
Nonstop1h 52m
Frontier
Mon 4/279:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/7![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 4/7. 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.
Thu 4/1612:25 pm
SAN
- SFO
1 stop12h 02m
Frontier
Mon 4/209:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/7![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:19 am
SAN
- SFO
Nonstop1h 52m
Frontier
Thu 4/239:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/7![Frontier logo]()
$164
This Super.com deal was found by Cheapflights users on 4/4. 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 4/179:19 am
SAN
- SFO
Nonstop1h 52m
Frontier
Fri 4/249:58 am
SFO
- SAN
Nonstop1h 42m
Frontier
Deal found 4/4![Frontier logo]()
$154
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 April 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 April 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 4/279:19 am
SAN
- SFO
Nonstop1h 52m
Frontier
Deal found 4/3![Frontier logo]()
$55
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:10 pm
SAN
- SFO
Nonstop2h 01m
Frontier
Deal found 4/6![Frontier logo]()
$56
This Booking.com deal was found by Cheapflights users on 4/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:10 pm
SAN
- SFO
Nonstop2h 01m
Frontier
Deal found 4/5![Frontier logo]()
$57
This Super.com deal was found by Cheapflights users on 4/7. 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.
Mon 6/17:15 pm
SAN
- SFO
Nonstop2h 01m
Frontier
Deal found 4/7![Frontier logo]()
$58
This Southwest deal was found by Cheapflights users on 4/7. 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.
Sat 5/22:25 pm
SAN
- SFO
Nonstop1h 45m
Southwest
Deal found 4/7![Southwest logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:31 pm
SAN
- SFO
Nonstop1h 50m
Frontier
Deal found 4/6![Frontier logo]()
$63
This Southwest deal was found by Cheapflights users on 4/3. 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.
Sat 5/98:50 am
SAN
- SFO
2 stops8h 35m
Southwest
Deal found 4/3![Southwest logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Tue 4/282:12 pm
SAN
- SFO
1 stop23h 40m
Frontier
Deal found 4/8![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:31 pm
SAN
- SFO
Nonstop1h 50m
Frontier
Deal found 4/4![Frontier logo]()
$68
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 April 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $104 (Kiwi.com) |
One-way from | $55 (Kiwi.com) |
Popular in | March |
Cheapest in | May |
Average price | $159 |
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 April 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 - SFO
SANSFO
San Diego
Mon 5/4
3:35 pm-5:21 pm
Nonstop1h 46m
San Francisco
Wed 5/6
11:10 am-12:59 pm
Nonstop1h 49m
$147
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 5/6
4:25 pm-11:15 pm
2 stops6h 50m
San Francisco
Sat 5/9
1:50 pm-9:00 pm
2 stops7h 10m
$147
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 4/30
8:45 pm-10:25 pm
Nonstop1h 40m
San Francisco
Wed 5/6
8:55 am-4:20 pm
2 stops7h 25m
$152
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 5/6
4:25 pm-11:15 pm
2 stops6h 50m
San Francisco
Thu 5/7
6:00 am-7:35 am
Nonstop1h 35m
$152
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 5/13
6:45 pm-10:23 pm
1 stop3h 38m
San Francisco
Sat 5/16
4:55 pm-11:15 pm
1 stop6h 20m
$157
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Wed 8/19
9:45 am-11:31 am
Nonstop1h 46m
San Francisco
Fri 8/21
7:00 am-11:35 am
1 stop4h 35m
$172
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Fri 5/15
6:20 am-8:10 am
Nonstop1h 50m
San Francisco
Sat 5/16
1:50 pm-9:00 pm
2 stops7h 10m
$172
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Tue 5/5
6:30 pm-11:15 pm
1 stop4h 45m
San Francisco
Thu 5/7
3:00 pm-9:10 pm
2 stops6h 10m
$172
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Tue 5/19
6:30 pm-11:15 pm
1 stop4h 45m
San Francisco
Tue 5/26
7:20 am-2:10 pm
2 stops6h 50m
$182
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 5/21
6:20 am-8:10 am
Nonstop1h 50m
San Francisco
Thu 5/28
5:05 am-9:40 am
1 stop4h 35m
$187
Showing 1-10 of 22 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
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 April 3, 2026.
The best time to book flights from San Diego to Palo Alto is 90 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, May is the cheapest month in which you can book a flight from San Diego to Palo Alto (average of $32). Flying from San Diego to Palo Alto in February is currently the most expensive (average of $107). 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 April 8, 2026.
It’s typically best to fly out from San Diego to Palo Alto in the afternoon. Doing so could potentially save you 23% 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 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 April 4, 2026.
Travelers seeking maximum savings on their San Diego to Palo Alto flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 April 8, 2026.
The most flights from SAN to P4L are scheduled on a Wednesday (71 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).
How much does it cost to fly round-trip from San Diego to Palo Alto?
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 April 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.
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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San Diego and Palo Alto flights
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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 April 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$28 | Average$133 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$29 | Average$97 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$29 | Average$89 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$58 | Average$178 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$68 | Average$259 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$77 | Average$209 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$77 | Average$200 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$88 | Average$156 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$217 | Average$366 | FlexibilityNo cancel fee | On-time71% |