$109+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SFO
Jul 21 — Jul 281
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 October, booked 85 days in advance, depart on a Friday or Thursday and return on a Tuesday
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 June 21, 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 June 21, 2026.
This Priceline deal was found by Cheapflights users on 6/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:16 pm
PDX
- SFO
1 stop7h 07m
Multiple Airlines
Wed 7/2210:08 pm
SFO
- PDX
Nonstop1h 44m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$174
This Southwest deal was found by Cheapflights users on 6/19. 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.
Sat 8/88:00 am
PDX
- SFO
1 stop6h 45m
Southwest
Mon 8/106:45 am
SFO
- PDX
1 stop5h 20m
Southwest
Deal found 6/19![Southwest logo]()
$176
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Wed 7/12:49 pm
PDX
- SFO
Nonstop1h 51m
Alaska Airlines
Sat 7/47:20 am
SFO
- PDX
Nonstop1h 42m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:30 am
PDX
- SFO
1 stop4h 08m
Delta
Sat 8/86:20 am
SFO
- PDX
1 stop4h 22m
Delta
Deal found 6/16![Delta logo]()
$179
This Trip.com deal was found by Cheapflights users on 6/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:15 am
PDX
- SFO
Nonstop1h 57m
Multiple Airlines
Mon 8/1011:20 am
SFO
- PDX
1 stop5h 34m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/133:43 pm
PDX
- SFO
Nonstop1h 53m
United Airlines
Mon 8/178:20 am
SFO
- PDX
Nonstop1h 51m
United Airlines
Deal found 6/16![United Airlines logo]()
$181
This Southwest deal was found by Cheapflights users on 6/17. 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 9/610:50 am
PDX
- SFO
1 stop8h 00m
Southwest
Wed 9/97:40 am
SFO
- PDX
2 stops10h 05m
Southwest
Deal found 6/17![Southwest logo]()
$182
This Priceline deal was found by Cheapflights users on 6/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:20 pm
PDX
- SFO
1 stop6h 25m
Multiple Airlines
Tue 8/2511:56 am
SFO
- PDX
Nonstop1h 50m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$183
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:40 pm
PDX
- SFO
1 stop5h 28m
Alaska Airlines
Tue 7/217:20 am
SFO
- PDX
Nonstop1h 42m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$184
This Travelocity deal was found by Cheapflights users on 6/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:56 pm
PDX
- SFO
1 stop6h 22m
Multiple Airlines
Tue 9/86:59 pm
SFO
- PDX
Nonstop1h 52m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$185
This Southwest deal was found by Cheapflights users on 6/19. 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.
Wed 8/57:50 am
PDX
- SFO
2 stops6h 50m
Southwest
Thu 8/610:40 am
SFO
- PDX
2 stops8h 20m
Southwest
Deal found 6/19![Southwest logo]()
$186
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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 9/16:53 pm
PDX
- SFO
Nonstop1h 53m
Alaska Airlines
Fri 9/118:23 am
SFO
- PDX
Nonstop1h 46m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$187
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 June 21, 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 June 21, 2026.
This Southwest deal was found by Cheapflights users on 6/16. 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 8/114:00 pm
PDX
- SFO
1 stop5h 20m
Southwest
Sat 8/156:25 am
SFO
- PDX
1 stop5h 10m
Southwest
Deal found 6/16![Southwest logo]()
$179
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 9/210:37 am
PDX
- SFO
Nonstop2h 02m
Alaska Airlines
Wed 9/95:16 pm
SFO
- PDX
1 stop5h 29m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$190
This Delta deal was found by Cheapflights users on 6/17. 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 7/115:30 am
PDX
- SFO
1 stop4h 08m
Delta
Tue 7/145:55 am
SFO
- PDX
1 stop4h 40m
Delta
Deal found 6/17![Delta logo]()
$215
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:19 am
PDX
- SFO
Nonstop1h 57m
Alaska Airlines
Tue 7/217:20 am
SFO
- PDX
Nonstop1h 42m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$192
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:10 am
PDX
- SFO
1 stop5h 55m
Southwest
Fri 7/32:35 pm
SFO
- PDX
1 stop8h 10m
Southwest
Deal found 6/17![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 6/16. 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 8/67:00 pm
PDX
- SFO
1 stop4h 25m
Southwest
Mon 8/106:45 am
SFO
- PDX
1 stop5h 20m
Southwest
Deal found 6/16![Southwest logo]()
$201
This Southwest deal was found by Cheapflights users on 6/17. 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 8/173:40 pm
PDX
- SFO
1 stop6h 25m
Southwest
Mon 8/2411:05 am
SFO
- PDX
1 stop7h 55m
Southwest
Deal found 6/17![Southwest logo]()
$201
This Southwest deal was found by Cheapflights users on 6/16. 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 8/138:00 am
PDX
- SFO
1 stop5h 10m
Southwest
Mon 8/1711:30 am
SFO
- PDX
2 stops6h 55m
Southwest
Deal found 6/16![Southwest logo]()
$206
This Southwest deal was found by Cheapflights users on 6/20. 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 7/285:55 pm
PDX
- SFO
1 stop5h 25m
Southwest
Sun 8/26:50 pm
SFO
- PDX
1 stop6h 15m
Southwest
Deal found 6/20![Southwest logo]()
$219
This Southwest deal was found by Cheapflights users on 6/18. 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 7/145:00 am
PDX
- SFO
2 stops6h 35m
Southwest
Sat 7/185:55 pm
SFO
- PDX
1 stop6h 00m
Southwest
Deal found 6/18![Southwest logo]()
$227
Last-minute flights from Portland to Palo AltoDiscover last-minute flight deals from Portland to Palo Alto. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Palo Alto. Data last updated June 21, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Wed 7/12:49 pm
PDX
- SFO
Nonstop1h 51m
Alaska Airlines
Sat 7/47:20 am
SFO
- PDX
Nonstop1h 42m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 6/17. 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 7/45:00 am
PDX
- SFO
2 stops9h 00m
Southwest
Wed 7/811:30 am
SFO
- PDX
1 stop8h 35m
Southwest
Deal found 6/17![Southwest logo]()
$182
This Priceline deal was found by Cheapflights users on 6/16. 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.
Fri 7/1012:20 pm
PDX
- SFO
1 stop8h 34m
Multiple Airlines
Tue 7/1410:08 pm
SFO
- PDX
Nonstop1h 44m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$193
This Priceline deal was found by Cheapflights users on 6/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:16 pm
PDX
- SFO
1 stop7h 07m
Multiple Airlines
Wed 7/2210:08 pm
SFO
- PDX
Nonstop1h 44m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$174
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:40 pm
PDX
- SFO
1 stop5h 28m
Alaska Airlines
Tue 7/217:20 am
SFO
- PDX
Nonstop1h 42m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$184
This Expedia deal was found by Cheapflights users on 6/16. 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 7/147:19 am
PDX
- SFO
Nonstop1h 57m
Multiple Airlines
Tue 7/2112:38 pm
SFO
- PDX
1 stop27h 58m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$189
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Tue 7/1411:16 am
PDX
- SFO
Nonstop1h 51m
United Airlines
Sat 7/188:50 pm
SFO
- PDX
Nonstop1h 58m
United Airlines
Deal found 6/18![United Airlines logo]()
$195
This Priceline deal was found by Cheapflights users on 6/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:36 pm
PDX
- SFO
Nonstop1h 54m
Multiple Airlines
Mon 7/206:00 am
SFO
- PDX
1 stop10h 51m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$188
This United Airlines deal was found by Cheapflights users on 6/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:15 am
PDX
- SFO
Nonstop1h 46m
United Airlines
Mon 7/208:50 pm
SFO
- PDX
Nonstop1h 58m
United Airlines
Deal found 6/19![United Airlines logo]()
$192
This CheapOair deal was found by Cheapflights users on 6/19. 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.
Mon 7/209:45 pm
PDX
- SFO
Nonstop1h 51m
Alaska Airlines
Tue 7/217:20 am
SFO
- PDX
Nonstop1h 42m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:30 am
PDX
- SFO
1 stop4h 08m
Delta
Thu 8/62:00 pm
SFO
- PDX
1 stop5h 44m
Delta
Deal found 6/16![Delta logo]()
$179
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 June 21, 2026.
Search for one-way flight options from Portland to Palo Alto. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 9/87:00 am
PDX
- SFO
Nonstop1h 51m
United Airlines
Deal found 6/16![United Airlines logo]()
$109
This Super.com deal was found by Cheapflights users on 6/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:16 pm
PDX
- SFO
1 stop7h 07m
Frontier
Deal found 6/19![Frontier logo]()
$113
This Alaska Airlines deal was found by Cheapflights users on 6/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:19 am
PDX
- SFO
Nonstop1h 57m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$114
This Frontier deal was found by Cheapflights users on 6/17. 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 7/85:21 pm
PDX
- SFO
1 stop7h 02m
Frontier
Deal found 6/17![Frontier logo]()
$115
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 9/142:42 pm
PDX
- SFO
Nonstop1h 55m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$116
This Super.com deal was found by Cheapflights users on 6/18. 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.
Thu 9/31:47 pm
PDX
- SFO
1 stop6h 09m
Frontier
Deal found 6/18![Frontier logo]()
$118
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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 9/83:03 pm
PDX
- SFO
1 stop8h 09m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$119
This Super.com deal was found by Cheapflights users on 6/18. 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 7/1712:20 pm
PDX
- SFO
1 stop8h 34m
Frontier
Deal found 6/18![Frontier logo]()
$121
This Super.com deal was found by Cheapflights users on 6/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/112:20 pm
PDX
- SFO
1 stop8h 34m
Frontier
Deal found 6/19![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 6/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:20 pm
PDX
- SFO
1 stop8h 34m
Frontier
Deal found 6/20![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1612:20 pm
PDX
- SFO
1 stop8h 34m
Frontier
Deal found 6/20![Frontier logo]()
$124
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 June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $174 (Priceline) |
One-way from | $109 (United Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $288 |
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 June 21, 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
Tue 8/11
4:00 pm-9:20 pm
1 stop5h 20m
San Francisco
Sat 8/15
6:25 am-11:35 am
1 stop5h 10m
$179
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 9/2
10:37 am-12:39 pm
Nonstop2h 02m
San Francisco
Wed 9/9
5:16 pm-10:45 pm
1 stop5h 29m
$190
Quickest round-trip
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Sun 7/19
7:19 am-9:16 am
Nonstop1h 57m
San Francisco
Tue 7/21
7:20 am-9:02 am
Nonstop1h 42m
$192
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Wed 7/1
5:10 am-11:05 am
1 stop5h 55m
San Francisco
Fri 7/3
2:35 pm-10:45 pm
1 stop8h 10m
$197
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Thu 8/6
7:00 pm-11:25 pm
1 stop4h 25m
San Francisco
Mon 8/10
6:45 am-12:05 pm
1 stop5h 20m
$201
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Mon 8/17
3:40 pm-10:05 pm
1 stop6h 25m
San Francisco
Mon 8/24
11:05 am-7:00 pm
1 stop7h 55m
$201
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Thu 8/13
8:00 am-1:10 pm
1 stop5h 10m
San Francisco
Mon 8/17
11:30 am-6:25 pm
2 stops6h 55m
$206
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Sat 7/11
5:30 am-9:38 am
1 stop4h 08m
San Francisco
Tue 7/14
5:55 am-10:35 am
1 stop4h 40m
$215
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Tue 7/28
5:55 pm-11:20 pm
1 stop5h 25m
San Francisco
Sun 8/2
6:50 pm-1:05 am
1 stop6h 15m
$219
PortlandSan Francisco
PDX - SFO
PDXSFO
Portland
Tue 7/14
5:00 am-11:35 am
2 stops6h 35m
San Francisco
Sat 7/18
5:55 pm-11:55 pm
1 stop6h 00m
$227
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
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 June 21, 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 37% on airfare.
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 June 21, 2026.
The most flights from PDX to P4L are scheduled on a Sunday (63 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (41 on average).
How much does it cost to fly round-trip from Portland to Palo Alto?
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 June 20, 2026.
Travelers seeking maximum savings on their Portland to Palo Alto flight should consider departing on Tuesday 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 June 21, 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.
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Comfort
7.8
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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Alternative routes for Portland to Palo Alto
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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 Portland to Palo Alto by cabin class
Find flights from Portland to Palo Alto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Palo Alto flights
Browse other Portland and Palo Alto flight options. Last updated on June 21, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on June 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Palo Alto flights
Consider these flights traveling from Portland to Palo Alto.
Top 6 airlines flying from Portland to Palo Alto
Discover the top 6 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$105 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$209 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$116 | Average$245 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$281 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$119 | Average$237 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$262 | Average$493 | FlexibilityNo cancel fee | On-time71% |