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Palo Alto

$75+ Cheap flights from Seattle (SEA) 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
May 4 — May 111
Mon 5/4
Mon 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Palo Alto are usually found in January or May, booked 50 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to Palo Alto

Cheapest flights from Seattle to Palo Alto
Explore the most affordable flight options available from Seattle to Palo Alto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2026.

This Expedia deal was found by Cheapflights users on 4/1. 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.
Thu 5/217:50 pm
SEA
-
SFO
1 stop12h 11m
Frontier
Sun 5/249:34 am
SFO
-
SEA
1 stop9h 31m
Frontier
Deal found 4/1$140
This CheapOair deal was found by Cheapflights users on 3/31. 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.
Sat 4/257:12 pm
SEA
-
SFO
1 stop14h 01m
Frontier
Tue 5/58:48 pm
SFO
-
SEA
1 stop21h 47m
Frontier
Deal found 3/31$151
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 5/122:53 pm
SEA
-
SFO
Nonstop2h 21m
Alaska Airlines
Tue 5/127:59 pm
SFO
-
SEA
Nonstop2h 19m
Alaska Airlines
Deal found 3/31$152
This Expedia deal was found by Cheapflights users on 3/31. 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.
Wed 4/2910:57 am
SEA
-
SFO
1 stop10h 42m
Multiple Airlines
Tue 5/512:26 pm
SFO
-
SEA
Nonstop2h 16m
Multiple Airlines
Deal found 3/31$154
This Delta deal was found by Cheapflights users on 3/31. 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 5/127:15 am
SEA
-
SFO
Nonstop2h 19m
Delta
Wed 5/135:37 pm
SFO
-
SEA
Nonstop2h 18m
Delta
Deal found 3/31$157
This Frontier deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:57 am
SEA
-
SFO
1 stop10h 42m
Frontier
Sun 5/1010:40 pm
SFO
-
SEA
1 stop11h 42m
Frontier
Deal found 4/1$160
This Frontier deal was found by Cheapflights users on 3/30. 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 4/257:12 pm
SEA
-
SFO
1 stop14h 01m
Frontier
Mon 4/276:29 pm
SFO
-
SEA
1 stop23h 13m
Frontier
Deal found 3/30$161
This Priceline deal was found by Cheapflights users on 3/31. 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 5/2211:51 am
SEA
-
SFO
1 stop10h 04m
Frontier
Sun 5/249:34 am
SFO
-
SEA
1 stop9h 31m
Frontier
Deal found 3/31$165
This Expedia deal was found by Cheapflights users on 3/31. 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.
Wed 4/293:48 pm
SEA
-
SFO
Nonstop2h 21m
Multiple Airlines
Mon 5/46:00 am
SFO
-
SEA
1 stop9h 05m
Multiple Airlines
Deal found 3/31$169
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:12 pm
SEA
-
SFO
1 stop14h 01m
Frontier
Tue 4/288:40 am
SFO
-
SEA
1 stop24h 47m
Frontier
Deal found 3/30$171
This Kiwi.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:57 am
SEA
-
SFO
1 stop10h 42m
Frontier
Sat 5/99:15 am
SFO
-
SEA
1 stop25h 07m
Frontier
Deal found 4/3$172

Find flight deals from Seattle to Palo Alto

Keep the following information in mind while searching for Seattle to Palo Alto flight deals. Data was last updated April 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$140
(Expedia)

One-way from

$75
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$240
Provider with most accurate pricing for Seattle/Tacoma Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Francisco flights.
Search Deals
From Seattle/Tacoma Intl to Palo Alto
Search Deals
One-way flight from Seattle/Tacoma Intl to Palo Alto
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Palo Alto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 4, 2026.
Use the filters below to find and compare flights from Seattle to Palo Alto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 4/22

1:25 pm-10:10 pm

1 stop8h 45m

San Francisco

Tue 4/28

11:25 am-8:20 pm

2 stops8h 55m

$182

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 5/22

5:00 am-7:20 am

Nonstop2h 20m

San Francisco

Wed 5/27

4:27 pm-6:47 pm

Nonstop2h 20m

$207

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 5/2

7:00 am-9:22 am

Nonstop2h 22m

San Francisco

Sat 5/9

5:37 pm-7:55 pm

Nonstop2h 18m

$217

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 4/27

9:24 pm-11:44 pm

Nonstop2h 20m

San Francisco

Mon 5/11

6:57 pm-9:16 pm

Nonstop2h 19m

$221

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 4/29

9:20 pm-11:37 pm

Nonstop2h 17m

San Francisco

Sun 5/3

5:55 am-8:13 am

Nonstop2h 18m

$222

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 8/17

7:00 am-11:55 am

1 stop4h 55m

San Francisco

Wed 8/19

10:40 am-5:30 pm

1 stop6h 50m

$227

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 5/23

5:30 pm-7:47 pm

Nonstop2h 17m

San Francisco

Mon 5/25

5:55 am-8:17 am

Nonstop2h 22m

$227

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 8/18

8:30 am-4:55 pm

1 stop8h 25m

San Francisco

Sat 8/22

11:35 am-7:35 pm

1 stop8h 00m

$227

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 4/28

11:35 am-7:55 pm

2 stops8h 20m

San Francisco

Tue 5/5

2:50 pm-11:35 pm

1 stop8h 45m

$232
Quickest round-trip

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sun 4/26

7:10 am-9:27 am

Nonstop2h 17m

San Francisco

Fri 5/8

7:00 am-9:17 am

Nonstop2h 17m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Seattle to Palo Alto

Have a flexible travel schedule? Discover the best time to fly to Palo Alto from Seattle 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 Seattle to Palo Alto

How far ahead should I book a flight from Seattle to Palo Alto?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Palo Alto. Price data was last updated on April 2, 2026.

The price you pay for your flight from Seattle to Palo Alto may vary depending on when you book. For the best chance of a lower fare, look to book 50 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 Seattle to Palo Alto?

Currently, January is the cheapest month in which you can book a flight from Seattle to Palo Alto (average of $82). Flying from Seattle to Palo Alto in June is currently the most expensive (average of $131). 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 SEA to P4L?

Find hourly flight availability from Seattle to Palo Alto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 4, 2026.

It’s optimal to fly from Seattle to Palo Alto at noon. By choosing this option you can save up to 4% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Seattle to Palo Alto?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Palo Alto. Price data was last updated on March 28, 2026.

Travelers seeking maximum savings on their Seattle to Palo Alto flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Palo Alto

Explore weekly flight availability from Seattle to Palo Alto. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 4, 2026.

The most flights from SEA to P4L are scheduled on a Friday (74 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

How much does it cost to fly round-trip from Seattle to Palo Alto?

Reviews of airlines servicing Palo Alto

Get insights into the airlines that provide service to Palo Alto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Palo Alto. Reviews last updated April 4, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Seattle to Palo Alto to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,161 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,161 reviews
Alaska Airlines
7.9
Good
12,161 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,385 reviews
Alaska Airlines
7.9
Good
12,161 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,838 reviews
Alaska Airlines
7.9
Good
12,161 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,544 reviews
Alaska Airlines
7.9
Good
12,161 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Frontier
5.7
Fair
3,001 reviews
Alaska Airlines
7.9
Good
12,161 reviews

Overall

7.9

Food

7.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from Seattle 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 Seattle to Palo Alto?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Palo Alto from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Palo Alto should be relatively easy as there are 53 daily outbound flights to Palo Alto from 7 different airlines.

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

    This flight path from Seattle/Tacoma Intl to Palo Alto was viewed by 121 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Airlines like Southwest, United Airlines, and Delta fly from Seattle to Palo Alto in about 2h 20m. The time it takes to get you to your destination can typically vary by up to 6h 25m. The distance between Seattle and Palo Alto is about 679 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $54 on Frontier. Other airlines that offer cheap prices include Delta from $59 and United Airlines from $66 one-way.

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

    Before booking your flight to Palo Alto from Seattle, check out the most reliable airlines to get you to your destination on time: Southwest (100%), Iberia (100%), Aeromexico( 90%).

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

    Looking for the cheapest flight from Seattle to Palo Alto? While on average our users pay $766, our data indicates the cheapest price to be $83. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $157.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Palo Alto?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Palo Alto (average of $82). Flying from Seattle to Palo Alto in June is currently the most expensive (average of $131). 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 Seattle to Palo Alto

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Top 7 airlines flying from Seattle to Palo Alto

Discover the top 7 airlines that operate flights from Seattle to Palo Alto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$267FlexibilityNo cancel feeOn-time85%
DeltaCheapest$79Average$214FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$85Average$208FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$103Average$354FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$116Average$282FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$117Average$245FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$267Average$693FlexibilityNo cancel feeOn-time71%

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