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Palo Alto

$85+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Palo Alto are usually found in September or January, booked 88 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 July 31, 2025.

Round-trip from

$141
(Kiwi.com)

One-way from

$85
(Kissandfly.com)

Popular in

July

Cheapest in

September

Average price

$274
From Seattle/Tacoma Intl to Palo Alto
Search Deals
One-way flight from Seattle/Tacoma Intl to Palo Alto
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Highest demand for flights based on searches. 5% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:08 pmSEA - SFO
Nonstop2h 15mHawaiian Airlines
Sun 8/246:00 amSFO - SEA
Nonstop2h 07mHawaiian Airlines
Deal found 7/31$141
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/239:31 pmSEA - SFO
Nonstop2h 12mDelta
Sun 8/245:55 amSFO - SEA
Nonstop2h 10mDelta
Deal found 7/30$146
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 8/201:40 pmSEA - SFO
Nonstop2h 12mAlaska Airlines
Wed 8/278:00 amSFO - SEA
1 stop6h 26mAlaska Airlines
Deal found 7/31$147
This Kissandfly.com deal was found by Cheapflights users on 7/30. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:05 pmSEA - SFO
Nonstop2h 15mMultiple Airlines
Sun 8/319:43 amSFO - SEA
1 stop7h 16mMultiple Airlines
Deal found 7/30$151
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:55 amSEA - SFO
2 stops9h 15mSouthwest
Tue 8/265:25 pmSFO - SEA
1 stop5h 25mSouthwest
Deal found 7/29$162
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:19 pmSEA - SFO
Nonstop2h 16mUnited Airlines
Thu 8/286:00 amSFO - SEA
Nonstop2h 19mUnited Airlines
Deal found 7/29$175

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 July 31, 2025.
Use the filters below to find and compare flights from Seattle to Palo Alto that are best for you.

Fly from

Seattle

Fly to

Palo Alto

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 8/23

8:08 pm-10:23 pm

Nonstop2h 15m

San Francisco

Sun 8/24

6:00 am-8:07 am

Nonstop2h 07m

$141

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 8/23

9:31 pm-11:43 pm

Nonstop2h 12m

San Francisco

Sun 8/24

5:55 am-8:05 am

Nonstop2h 10m

$146

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 8/20

1:40 pm-3:52 pm

Nonstop2h 12m

San Francisco

Wed 8/27

8:00 am-2:26 pm

1 stop6h 26m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 8/30

7:05 pm-9:20 pm

Nonstop2h 15m

San Francisco

Sun 8/31

9:43 am-4:59 pm

1 stop7h 16m

$151

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 8/23

6:55 am-4:10 pm

2 stops9h 15m

San Francisco

Tue 8/26

5:25 pm-10:50 pm

1 stop5h 25m

$162

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 8/25

3:19 pm-5:35 pm

Nonstop2h 16m

San Francisco

Thu 8/28

6:00 am-8:19 am

Nonstop2h 19m

$175

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 12/16

5:30 am-8:49 am

1 stop3h 19m

$85

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 8/29

2:32 pm-8:51 pm

1 stop6h 19m

$89

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 10/30

9:32 pm-11:50 pm

Nonstop2h 18m

$91

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 8/21

10:40 am-7:15 pm

2 stops8h 35m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 13 results
1
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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 July 25, 2025.

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 57 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 $276). Flying from Seattle to Palo Alto in June is currently the most expensive (average of $358). 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 July 31, 2025.

When flying from Seattle to Palo Alto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 December 16, 2024.

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. Sunday afternoons 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 July 31, 2025.

The most flights from SEA to P4L are scheduled on a Thursday (127 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 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 July 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 80 daily outbound flights to Palo Alto from 8 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 124 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 $85 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $89 and Southwest from $93 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: KLM (94%), China Southern (93%), SWISS( 92%).

  • 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 $1,063, our data indicates the cheapest price to be $74. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $103.

  • 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 $276). Flying from Seattle to Palo Alto in June is currently the most expensive (average of $358). 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 8 airlines flying from Seattle to Palo Alto

Discover the top 8 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$65Average$203FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$78Average$241FlexibilityNo cancel feeOn-time85%
FrontierCheapest$100Average$214FlexibilityNo cancel feeOn-time62%
DeltaCheapest$103Average$215FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$116Average$261FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$120Average$245FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$126Average$231FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$392FlexibilityNo cancel feeOn-time71%

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