$69+ Cheap flights from Portland (PDX) 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SFO
Apr 23 — Apr 301
Round-trip
1 adult, Economy
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Find cheap flights from Portland 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 Portland to Palo Alto are usually found in January or August, booked 86 days in advance, depart on a Friday or Thursday and return on a Monday
Cheap flight deals from Portland to Palo Alto
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to Palo AltoExplore the most affordable flight options available from Portland to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.
Explore the most affordable flight options available from Portland to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Wed 4/2212:38 pm
PDX
- SFO
1 stop10h 47m
Frontier
Wed 4/296:29 pm
SFO
- PDX
1 stop17h 21m
Frontier
Deal found 3/24![Frontier logo]()
$151
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Fri 4/179:35 pm
PDX
- SFO
Nonstop1h 54m
Alaska Airlines
Mon 4/202:39 pm
SFO
- PDX
Nonstop1h 51m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 5/57:00 am
PDX
- SFO
Nonstop2h 04m
Alaska Airlines
Tue 5/1211:52 am
SFO
- PDX
Nonstop1h 55m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$155
This Southwest deal was found by Cheapflights users on 3/20. 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 4/217:40 am
PDX
- SFO
2 stops6h 35m
Southwest
Wed 4/292:50 pm
SFO
- PDX
1 stop6h 10m
Southwest
Deal found 3/20![Southwest logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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 5/195:59 pm
PDX
- SFO
Nonstop1h 57m
Alaska Airlines
Tue 5/267:40 am
SFO
- PDX
Nonstop1h 49m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$157
This Expedia deal was found by Cheapflights users on 3/24. 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 4/217:05 am
PDX
- SFO
Nonstop1h 58m
Alaska Airlines
Tue 4/287:40 am
SFO
- PDX
Nonstop1h 50m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$159
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 4/1810:48 am
PDX
- SFO
Nonstop1h 59m
Alaska Airlines
Wed 4/227:40 am
SFO
- PDX
Nonstop1h 50m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 3/24. 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 4/217:40 am
PDX
- SFO
2 stops6h 35m
Southwest
Sat 5/25:40 am
SFO
- PDX
1 stop13h 05m
Southwest
Deal found 3/24![Southwest logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/1810:48 am
PDX
- SFO
Nonstop1h 59m
Hawaiian Airlines
Sun 4/198:00 am
SFO
- PDX
Nonstop1h 50m
Hawaiian Airlines
Deal found 3/24![Hawaiian Airlines logo]()
$164
This Delta deal was found by Cheapflights users on 3/20. 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.
Sat 4/185:59 pm
PDX
- SFO
1 stop5h 36m
Delta
Tue 4/2110:32 am
SFO
- PDX
1 stop4h 21m
Delta
Deal found 3/20![Delta logo]()
$167
Best flights from Portland to Palo AltoDiscover carefully curated flight deals from Portland to Palo Alto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 24, 2026.
Discover carefully curated flight deals from Portland to Palo Alto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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 4/910:48 am
PDX
- SFO
Nonstop1h 59m
Alaska Airlines
Thu 4/92:39 pm
SFO
- PDX
Nonstop1h 51m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$192
This Southwest deal was found by Cheapflights users on 3/19. 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 6/45:20 am
PDX
- SFO
2 stops7h 40m
Southwest
Fri 6/56:45 pm
SFO
- PDX
1 stop6h 35m
Southwest
Deal found 3/19![Southwest logo]()
$237
This United Airlines deal was found by Cheapflights users on 3/22. 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 5/227:00 am
PDX
- SFO
Nonstop1h 56m
United Airlines
Sat 5/3010:52 pm
SFO
- PDX
Nonstop1h 58m
United Airlines
Deal found 3/22![United Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 6/165:35 pm
PDX
- SFO
Nonstop1h 57m
Alaska Airlines
Tue 6/1610:08 pm
SFO
- PDX
Nonstop1h 44m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 3/22. 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 5/175:10 am
PDX
- SFO
2 stops8h 40m
Southwest
Tue 5/197:40 am
SFO
- PDX
1 stop6h 10m
Southwest
Deal found 3/22![Southwest logo]()
$254
This United Airlines deal was found by Cheapflights users on 3/24. 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 5/207:15 am
PDX
- SFO
Nonstop1h 49m
United Airlines
Mon 5/258:22 am
SFO
- PDX
Nonstop1h 58m
United Airlines
Deal found 3/24![United Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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.
Wed 5/67:00 am
PDX
- SFO
Nonstop2h 04m
Alaska Airlines
Wed 5/612:26 pm
SFO
- PDX
1 stop7h 08m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$246
This Southwest deal was found by Cheapflights users on 3/21. 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 4/217:40 am
PDX
- SFO
2 stops6h 35m
Southwest
Thu 4/2310:10 am
SFO
- PDX
2 stops10h 00m
Southwest
Deal found 3/21![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 3/20. 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.
Mon 5/44:55 pm
PDX
- SFO
1 stop7h 15m
Southwest
Mon 5/113:00 pm
SFO
- PDX
2 stops9h 25m
Southwest
Deal found 3/20![Southwest logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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.
Wed 4/2910:30 am
PDX
- SFO
1 stop12h 31m
Alaska Airlines
Sun 5/37:40 am
SFO
- PDX
Nonstop1h 50m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 3/22. 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 4/238:05 am
PDX
- SFO
1 stop7h 20m
Southwest
Mon 4/273:00 pm
SFO
- PDX
2 stops7h 40m
Southwest
Deal found 3/22![Southwest logo]()
$262
This Southwest deal was found by Cheapflights users on 3/21. 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.
Mon 4/205:00 pm
PDX
- SFO
1 stop6h 45m
Southwest
Mon 4/273:00 pm
SFO
- PDX
2 stops7h 40m
Southwest
Deal found 3/21![Southwest logo]()
$272
Last-minute flights from Portland to Palo AltoDiscover last-minute flight deals from Portland to Palo Alto. Data last updated March 24, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Palo Alto. Data last updated March 24, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Fri 4/179:35 pm
PDX
- SFO
Nonstop1h 54m
Alaska Airlines
Mon 4/202:39 pm
SFO
- PDX
Nonstop1h 51m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$153
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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.
Sat 4/1810:48 am
PDX
- SFO
Nonstop1h 59m
Alaska Airlines
Wed 4/227:40 am
SFO
- PDX
Nonstop1h 50m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/1810:48 am
PDX
- SFO
Nonstop1h 59m
Hawaiian Airlines
Sun 4/198:00 am
SFO
- PDX
Nonstop1h 50m
Hawaiian Airlines
Deal found 3/24![Hawaiian Airlines logo]()
$164
This Delta deal was found by Cheapflights users on 3/20. 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.
Sat 4/185:59 pm
PDX
- SFO
1 stop5h 36m
Delta
Tue 4/2110:32 am
SFO
- PDX
1 stop4h 21m
Delta
Deal found 3/20![Delta logo]()
$167
This Southwest deal was found by Cheapflights users on 3/20. 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 4/217:40 am
PDX
- SFO
2 stops6h 35m
Southwest
Wed 4/292:50 pm
SFO
- PDX
1 stop6h 10m
Southwest
Deal found 3/20![Southwest logo]()
$156
This Expedia deal was found by Cheapflights users on 3/24. 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 4/217:05 am
PDX
- SFO
Nonstop1h 58m
Alaska Airlines
Tue 4/287:40 am
SFO
- PDX
Nonstop1h 50m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 3/24. 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 4/217:40 am
PDX
- SFO
2 stops6h 35m
Southwest
Sat 5/25:40 am
SFO
- PDX
1 stop13h 05m
Southwest
Deal found 3/24![Southwest logo]()
$162
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Wed 4/2212:38 pm
PDX
- SFO
1 stop10h 47m
Frontier
Wed 4/296:29 pm
SFO
- PDX
1 stop17h 21m
Frontier
Deal found 3/24![Frontier logo]()
$151
This Booking.com deal was found by Cheapflights users on 3/23. 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.
Wed 4/2212:38 pm
PDX
- SFO
1 stop10h 47m
Frontier
Sun 4/266:00 am
SFO
- PDX
1 stop29h 03m
Frontier
Deal found 3/23![Frontier logo]()
$172
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Mon 4/2711:48 am
PDX
- SFO
1 stop12h 39m
Frontier
Wed 4/296:29 pm
SFO
- PDX
1 stop17h 21m
Frontier
Deal found 3/24![Frontier logo]()
$171
One-way flights from Portland to Palo AltoSearch for one-way flight options from Portland to Palo Alto. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
Search for one-way flight options from Portland to Palo Alto. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
This Delta deal was found by Cheapflights users on 3/20. 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.
Tue 4/147:32 pm
PDX
- SFO
1 stop4h 05m
Delta
Deal found 3/20![Delta logo]()
$69
This Priceline deal was found by Cheapflights users on 3/24. 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.
Wed 4/2212:38 pm
PDX
- SFO
1 stop10h 47m
Frontier
Deal found 3/24![Frontier logo]()
$76
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/163:30 pm
PDX
- SFO
Nonstop1h 51m
United Airlines
Deal found 3/23![United Airlines logo]()
$77
This CheapOair deal was found by Cheapflights users on 3/19. 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.
Wed 4/158:46 pm
PDX
- SFO
Nonstop1h 57m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$79
This Southwest deal was found by Cheapflights users on 3/20. 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 4/147:40 am
PDX
- SFO
2 stops6h 35m
Southwest
Deal found 3/20![Southwest logo]()
$81
This United Airlines deal was found by Cheapflights users on 3/20. 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 4/137:14 pm
PDX
- SFO
Nonstop1h 51m
United Airlines
Deal found 3/20![United Airlines logo]()
$89
This Southwest deal was found by Cheapflights users on 3/24. 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 4/2411:35 am
PDX
- SFO
1 stop10h 50m
Southwest
Deal found 3/24![Southwest logo]()
$92
This Orbitz deal was found by Cheapflights users on 3/23. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:27 pm
PDX
- SFO
1 stop20h 46m
Frontier
Deal found 3/23![Frontier logo]()
$96
This United Airlines deal was found by Cheapflights users on 3/23. 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 6/65:15 am
PDX
- SFO
Nonstop1h 46m
United Airlines
Deal found 3/23![United Airlines logo]()
$97
Find flight deals from Portland to Palo Alto
Keep the following information in mind while searching for Portland to Palo Alto flight deals. Data was last updated March 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $151 (CheapOair) |
One-way from | $69 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $349 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 March 24, 2026.
Use the filters below to find and compare flights from Portland to Palo Alto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Thu 4/9
10:48 am-12:47 pm
Nonstop1h 59m
San Francisco
Thu 4/9
2:39 pm-4:30 pm
Nonstop1h 51m
$192
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Thu 6/4
5:20 am-1:00 pm
2 stops7h 40m
San Francisco
Fri 6/5
6:45 pm-1:20 am
1 stop6h 35m
$237
Quickest round-trip
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Tue 6/16
5:35 pm-7:32 pm
Nonstop1h 57m
San Francisco
Tue 6/16
10:08 pm-11:52 pm
Nonstop1h 44m
$242
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 5/6
7:00 am-9:04 am
Nonstop2h 04m
San Francisco
Wed 5/6
12:26 pm-7:34 pm
1 stop7h 08m
$246
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Fri 5/22
7:00 am-8:56 am
Nonstop1h 56m
San Francisco
Sat 5/30
10:52 pm-12:50 am
Nonstop1h 58m
$247
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Sun 5/17
5:10 am-1:50 pm
2 stops8h 40m
San Francisco
Tue 5/19
7:40 am-1:50 pm
1 stop6h 10m
$254
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Tue 4/21
7:40 am-2:15 pm
2 stops6h 35m
San Francisco
Thu 4/23
10:10 am-8:10 pm
2 stops10h 00m
$257
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Mon 5/4
4:55 pm-12:10 am
1 stop7h 15m
San Francisco
Mon 5/11
3:00 pm-12:25 am
2 stops9h 25m
$262
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Thu 4/23
8:05 am-3:25 pm
1 stop7h 20m
San Francisco
Mon 4/27
3:00 pm-10:40 pm
2 stops7h 40m
$262
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 5/20
7:15 am-9:04 am
Nonstop1h 49m
San Francisco
Mon 5/25
8:22 am-10:20 am
Nonstop1h 58m
$268
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from Portland to Palo Alto
Have a flexible travel schedule? Discover the best time to fly to Palo Alto from Portland with our price prediction graph.
PDX-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 Portland to Palo Alto
PDX-P4L
PDX-SFO
How far ahead should I book a flight from Portland to Palo Alto?
Use this chart to determine the optimal time to book a round-trip flight from Portland to Palo Alto. Price data was last updated on March 13, 2026.
To ensure you get the cheapest price possible for a flight from Portland to Palo Alto, you should look to book at least 86 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 Portland to Palo Alto?
Currently, July is the cheapest month in which you can book a flight from Portland to Palo Alto (average of $66). Flying from Portland to Palo Alto in February is currently the most expensive (average of $141). 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 PDX to P4L?
Find hourly flight availability from Portland 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 March 24, 2026.
One of the essential ways to save on airfare from Portland to Palo Alto is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 35% on airfare.
What is the cheapest day to fly from Portland to Palo Alto?
Use this chart to determine the cheapest time to fly round-trip from Portland to Palo Alto. Price data was last updated on March 23, 2026.
Travelers seeking maximum savings on their Portland to Palo Alto flight should consider departing on Saturday evenings 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.
Weekly flight availability from Portland to Palo Alto
Explore weekly flight availability from Portland 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 March 24, 2026.
The most flights from PDX to P4L are scheduled on a Tuesday (49 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).
How much does it cost to fly round-trip from Portland 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 March 24, 2026.
See what other customers who have flown with Alaska Airlines,Hawaiian Airlines, andUnited Airlines from Portland to Palo Alto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Portland 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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Portland and Palo Alto flights
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Top 8 airlines flying from Portland to Palo Alto
Discover the top 8 airlines that operate flights from Portland 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 March 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$98 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$60 | Average$140 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$77 | Average$222 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$88 | Average$159 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$114 | Average$241 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$116 | Average$268 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$118 | Average$229 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$493 | FlexibilityNo cancel fee | On-time71% |