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Palo Alto

$55+ Cheap flights from Sky Harbor Intl (PHX) 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SFO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Palo Alto are usually found in October or August, booked 70 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Sky Harbor Intl to Palo Alto

Keep the following information in mind while searching for Sky Harbor Intl to Palo Alto flight deals. Data was last updated October 30, 2025.

Round-trip from

$84
(Flightnetwork)

One-way from

$55
(CheapOair)

Popular in

June

Cheapest in

October

Average price

$161
From Phoenix Sky Harbor Intl to Palo Alto
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One-way flight from Phoenix Sky Harbor Intl to Palo Alto
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Highest demand for flights based on searches. 3% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Sky Harbor Intl to Palo Alto

Cheapest flights from Sky Harbor Intl to Palo Alto
Explore the most affordable flight options available from Sky Harbor Intl to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Flightnetwork deal was found by Cheapflights users on 10/30. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:31 pmPHX - SFO
Nonstop2h 12mFrontier
Mon 11/173:15 pmSFO - PHX
1 stop7h 29mFrontier
Deal found 10/30$84
This Frontier deal was found by Cheapflights users on 10/30. 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.
Sat 11/156:11 pmPHX - SFO
1 stop16h 22mFrontier
Mon 11/178:55 pmSFO - PHX
Nonstop2h 04mFrontier
Deal found 10/30$85
This Expedia deal was found by Cheapflights users on 10/28. 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.
Sat 11/226:00 amPHX - SFO
Nonstop2h 11mMultiple Airlines
Wed 12/311:35 amSFO - PHX
Nonstop2h 06mMultiple Airlines
Deal found 10/28$86
This Trip.com deal was found by Cheapflights users on 10/29. 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 12/236:02 pmPHX - SFO
Nonstop2h 15mFrontier
Sun 1/49:56 pmSFO - PHX
Nonstop2h 02mFrontier
Deal found 10/29$87
This Frontier deal was found by Cheapflights users on 10/30. 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 12/54:23 pmPHX - SFO
Nonstop2h 12mFrontier
Mon 12/88:48 pmSFO - PHX
Nonstop2h 07mFrontier
Deal found 10/30$88
This Frontier deal was found by Cheapflights users on 10/29. 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.
Sat 12/208:30 amPHX - SFO
Nonstop2h 16mFrontier
Mon 1/128:09 pmSFO - PHX
Nonstop2h 07mFrontier
Deal found 10/29$89
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:00 amPHX - SFO
Nonstop2h 11mMultiple Airlines
Thu 12/411:35 amSFO - PHX
Nonstop2h 06mMultiple Airlines
Deal found 10/28$91
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/83:31 pmPHX - SFO
Nonstop2h 12mFrontier
Sat 11/158:55 pmSFO - PHX
Nonstop2h 04mFrontier
Deal found 10/28$92
This Priceline deal was found by Cheapflights users on 10/28. 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.
Sat 11/83:31 pmPHX - SFO
Nonstop2h 12mFrontier
Wed 11/128:55 pmSFO - PHX
Nonstop2h 04mFrontier
Deal found 10/28$93
This CheapOair deal was found by Cheapflights users on 10/28. 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.
Tue 11/256:00 amPHX - SFO
Nonstop2h 11mFrontier
Thu 12/46:00 amSFO - PHX
1 stop11h 31mFrontier
Deal found 10/28$94

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 October 30, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Palo Alto that are best for you.

Fly from

Sky Harbor Intl

Fly to

Palo Alto

Route

Depart

Return

Price

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Sat 11/15

10:57 am-10:27 pm

1 stop12h 30m

San Francisco

Wed 11/19

8:02 am-5:01 pm

1 stop7h 59m

$110

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Wed 12/17

3:23 pm-4:39 pm

Nonstop2h 16m

San Francisco

Mon 1/5

10:46 am-1:53 pm

Nonstop2h 07m

$120

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Tue 11/11

3:31 pm-4:43 pm

Nonstop2h 12m

San Francisco

Sat 11/15

8:55 pm-11:59 pm

Nonstop2h 04m

$123

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Tue 11/11

3:31 pm-4:43 pm

Nonstop2h 12m

San Francisco

Thu 11/13

8:55 pm-11:59 pm

Nonstop2h 04m

$125

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Thu 12/4

8:50 am-1:35 pm

1 stop5h 45m

San Francisco

Thu 12/4

6:59 pm-9:59 pm

Nonstop2h 00m

$130

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Sat 2/28

4:47 pm-5:51 pm

Nonstop2h 04m

San Francisco

Tue 3/3

12:49 pm-3:47 pm

Nonstop1h 58m

$131

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Wed 12/3

7:56 pm-8:06 am

1 stop13h 10m

San Francisco

Thu 12/4

11:35 am-2:41 pm

Nonstop2h 06m

$133

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Wed 12/24

9:36 am-10:03 pm

1 stop13h 27m

San Francisco

Sat 12/27

10:41 am-1:43 pm

Nonstop2h 02m

$142

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Fri 1/30

6:00 pm-10:20 pm

1 stop5h 20m

San Francisco

Mon 2/2

9:55 am-2:20 pm

1 stop3h 25m

$146

PhoenixSan Francisco

PHX - SFO

PHXSFO

Phoenix Sky Harbor Intl

Mon 12/1

6:25 am-7:33 am

Nonstop2h 08m

San Francisco

Wed 12/3

6:59 pm-9:59 pm

Nonstop2h 00m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 21 results
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Best time to book a flight from Sky Harbor Intl to Palo Alto

Have a flexible travel schedule? Discover the best time to fly to Palo Alto from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Palo Alto

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Palo Alto?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Palo Alto. Price data was last updated on October 24, 2025.

The price you pay for your flight from Phoenix Sky Harbor Intl Airport to Palo Alto may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Palo Alto?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Palo Alto (average of $38). Flying from Phoenix Sky Harbor Intl Airport to Palo Alto in September is currently the most expensive (average of $86). 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 PHX to P4L?

Find hourly flight availability from Sky Harbor Intl 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 October 30, 2025.

When flying from Phoenix Sky Harbor Intl Airport to Palo Alto, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 41% versus a flight in the evening.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Palo Alto?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Palo Alto. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Palo Alto flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings 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 October 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and United Airlines from Phoenix Sky Harbor Intl Airport 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
11,214 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,030 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Palo Alto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Palo Alto?

    Airlines like Frontier and Alaska Airlines fly from Phoenix Sky Harbor Intl Airport to Palo Alto in about 2h 16m. The time it takes to get you to your destination can typically vary by up to 10h 14m. Airlines will cover a distance of 650 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Palo Alto one-way?

    $55 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $66 and $66, respectively.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Palo Alto?

    No one likes to see their flight delayed. When booking a flight from Phoenix Sky Harbor Intl Airport to Palo Alto consider choosing Air China (94%), ANA (92%) or United Airlines (86%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Palo Alto?

    On average you can expect to pay $898 for a flight from Phoenix Sky Harbor Intl Airport to Palo Alto. The cheapest flight overall is $45 while the most popular route, (Phoenix Sky Harbor Intl - San Francisco) is currently priced at $54.

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

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

  • How can I find direct flights from Sky Harbor Intl to Palo Alto?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Palo Alto?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Palo Alto?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Palo Alto (average of $38). Flying from Phoenix Sky Harbor Intl Airport to Palo Alto in September is currently the most expensive (average of $86). 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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Top 9 airlines flying from Sky Harbor Intl to Palo Alto

Discover the top 9 airlines that operate flights from Sky Harbor Intl 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$135FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$68Average$169FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$78Average$137FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$90Average$137FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$107Average$246FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$117Average$220FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$125Average$349FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$129Average$240FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$297FlexibilityNo cancel feeOn-timeN/A

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