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Palo Alto

$59+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SFO
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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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 Friday

Cheap flight deals from Portland to Palo Alto

Cheapest flights from Portland to Palo Alto
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 February 5, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/37:05 am
PDX
-
SFO
Nonstop2h 03m
Alaska Airlines
Tue 3/311:34 am
SFO
-
PDX
1 stop4h 14m
Alaska Airlines
Deal found 2/4$151
This Alaska Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/287:24 am
PDX
-
SFO
Nonstop1h 58m
Alaska Airlines
Wed 4/18:00 am
SFO
-
PDX
Nonstop1h 50m
Alaska Airlines
Deal found 2/2$152
This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Sat 2/285:50 pm
PDX
-
SFO
Nonstop1h 57m
Hawaiian Airlines
Sun 3/17:50 am
SFO
-
PDX
Nonstop1h 52m
Hawaiian Airlines
Deal found 2/4$153
This Southwest deal was found by Cheapflights users on 2/3. 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.
Tue 4/76:30 am
PDX
-
SFO
1 stop5h 30m
Southwest
Tue 4/141:45 pm
SFO
-
PDX
2 stops9h 15m
Southwest
Deal found 2/3$156
This Alaska Airlines deal was found by Cheapflights users on 2/4. 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.
Sat 3/147:05 am
PDX
-
SFO
Nonstop2h 03m
Alaska Airlines
Tue 3/176:27 pm
SFO
-
PDX
1 stop4h 14m
Alaska Airlines
Deal found 2/4$157
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:15 am
PDX
-
SFO
Nonstop1h 47m
United Airlines
Mon 4/136:49 pm
SFO
-
PDX
Nonstop1h 59m
United Airlines
Deal found 2/4$159
This Expedia deal was found by Cheapflights users on 2/3. 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.
Mon 4/2712:52 pm
PDX
-
SFO
1 stop25h 34m
Frontier
Thu 4/305:49 pm
SFO
-
PDX
1 stop18h 08m
Frontier
Deal found 2/3$160
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:50 pm
PDX
-
SFO
Nonstop1h 57m
Alaska Airlines
Thu 3/52:58 pm
SFO
-
PDX
Nonstop1h 52m
Alaska Airlines
Deal found 2/3$162
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:15 am
PDX
-
SFO
Nonstop1h 47m
United Airlines
Sat 4/116:49 pm
SFO
-
PDX
Nonstop1h 59m
United Airlines
Deal found 2/2$164
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/612:04 pm
PDX
-
SFO
1 stop8h 05m
Frontier
Sun 3/810:35 pm
SFO
-
PDX
1 stop10h 23m
Frontier
Deal found 2/3$165

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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$151
(Alaska Airlines)

One-way from

$59
(CheapOair)

Popular in

March

Cheapest in

January

Average price

$197
Provider with most accurate pricing for Portland-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San Francisco flights.
Search Deals
From Portland to Palo Alto
Search Deals
One-way flight from Portland to Palo Alto
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 5, 2026.
Use the filters below to find and compare flights from Portland to Palo Alto that are best for you.

Fly from

Portland

Fly to

Palo Alto

Route

Depart

Return

Price

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 2/25

7:05 am-9:08 am

Nonstop2h 03m

San Francisco

Sat 2/28

9:00 am-10:56 am

Nonstop1h 56m

$157

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 3/3

7:30 am-9:25 am

Nonstop1h 55m

San Francisco

Tue 3/24

9:15 pm-11:04 pm

Nonstop1h 49m

$157

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 3/3

3:52 pm-8:36 pm

1 stop4h 44m

San Francisco

Wed 3/4

9:00 am-10:56 am

Nonstop1h 56m

$157

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 2/28

9:48 pm-11:44 pm

Nonstop1h 56m

San Francisco

Wed 3/4

11:34 am-3:48 pm

1 stop4h 14m

$157

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Sat 4/11

7:15 am-9:02 am

Nonstop1h 47m

San Francisco

Mon 4/13

6:49 pm-8:48 pm

Nonstop1h 59m

$159

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Mon 3/16

7:05 am-9:08 am

Nonstop2h 03m

San Francisco

Wed 3/18

8:00 am-9:50 am

Nonstop1h 50m

$162

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Wed 3/4

3:52 pm-9:55 pm

1 stop6h 03m

San Francisco

Wed 3/11

4:21 pm-10:41 pm

1 stop6h 20m

$167

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Mon 3/2

7:05 am-9:08 am

Nonstop2h 03m

San Francisco

Tue 3/3

11:34 am-3:48 pm

1 stop4h 14m

$172

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Tue 2/24

8:30 am-3:48 pm

1 stop7h 18m

San Francisco

Thu 3/5

9:00 am-10:56 am

Nonstop1h 56m

$172

PortlandSan Francisco

PDX - SFO

PDXSFO

Portland

Fri 3/13

1:39 pm-3:34 pm

Nonstop1h 55m

San Francisco

Sun 3/15

10:40 am-12:33 pm

Nonstop1h 53m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 23 results
1
2
3

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.
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

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 January 30, 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, January is the cheapest month in which you can book a flight from Portland to Palo Alto (average of $37). Flying from Portland to Palo Alto in March is currently the most expensive (average of $137). 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 February 5, 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 34% 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 January 31, 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.

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 February 5, 2026.

The most flights from PDX to P4L are scheduled on a Monday (44 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

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 5, 2026.
See what other customers who have flown with Alaska Airlines, Hawaiian Airlines, and United 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.
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,839 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,831 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,236 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,222 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Frontier
5.7
Fair
3,052 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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.

  • What airport do you fly from for flights from Portland to Palo Alto?

    For a flight from Portland to Palo Alto, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 37 outbound flights to Palo Alto per day. 7 airlines have flights to Palo Alto from Portland on a regular basis.

  • How popular is this Portland to Palo Alto flight route?

    Flights from Portland to Palo Alto have been viewed 146 times in the past calendar month.

  • How long is the flight from Portland to Palo Alto?

    There are many flights that can get you from Portland to Palo Alto in 1h 55m. Fly via Alaska Airlines or United Airlines to get the fastest option. There are 550 mi between Portland and Palo Alto. All flights are typically nonstop.

  • What are the cheapest airlines to fly from Portland to Palo Alto one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $39. However, be on the lookout for offers from Hawaiian Airlines and United Airlines, as they are both options that can get you from Portland to Palo Alto for a low price.

  • What are the most reliable airlines from Portland to Palo Alto?

    Before booking your flight to Palo Alto from Portland, check out the most reliable airlines to get you to your destination on time: Horizon Air (91%), Air China (88%), Emirates( 88%).

  • What are the cheapest flights from Portland to Palo Alto?

    While on average a flight from Portland to Palo Alto is generally $853, our data shows the cheapest flight currently is $64. When looking at the most popular route, (Portland - San Francisco), you can expect to pay $117 for that flight.

  • Can I find deals for flights from Portland to Palo Alto that include hotel bookings?

    Yes. In addition to deals on Portland to Palo Alto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Palo Alto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Palo Alto.

  • Can I find deals for business class flights from Portland to Palo Alto?

    Yes. Cheapflights offers flight deals from Portland to Palo Alto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Palo Alto?

    Currently, January is the cheapest month in which you can book a flight from Portland to Palo Alto (average of $37). Flying from Portland to Palo Alto in March is currently the most expensive (average of $137). 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.

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Alternative routes for Portland to Palo Alto

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Top 7 airlines flying from Portland to Palo Alto

Discover the top 7 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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$96FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$64Average$182FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$77Average$224FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$98Average$226FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$116Average$262FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$118Average$229FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$247Average$439FlexibilityNo cancel feeOn-time71%

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