HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Palo Alto

$72+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle 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 Seattle/Tacoma Intl to Palo Alto are usually found in January or February, 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 September 16, 2025.

Round-trip from

$131
(Alaska Airlines)

One-way from

$72
(Frontier)

Popular in

December

Cheapest in

January

Average price

$252
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. 2% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 10/147:00 amSEA - SFO
Nonstop2h 16mAlaska Airlines
Tue 10/1411:22 amSFO - SEA
Nonstop2h 16mAlaska Airlines
Deal found 9/15$131
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:00 amSEA - SFO
Nonstop2h 16mHawaiian Airlines
Sat 10/186:20 pmSFO - SEA
Nonstop2h 15mHawaiian Airlines
Deal found 9/15$137
This Trip.com deal was found by Cheapflights users on 9/14. 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 10/258:15 pmSEA - SFO
Nonstop2h 14mHawaiian Airlines
Mon 10/277:37 pmSFO - SEA
Nonstop2h 23mHawaiian Airlines
Deal found 9/14$138
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 amSEA - SFO
1 stop3h 51mHawaiian Airlines
Tue 10/77:54 pmSFO - SEA
Nonstop2h 21mHawaiian Airlines
Deal found 9/14$141
This Vliegwinkel deal was found by Cheapflights users on 9/14. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:59 pmSEA - SFO
Nonstop2h 13mMultiple Airlines
Mon 10/2711:40 amSFO - SEA
Nonstop2h 19mMultiple Airlines
Deal found 9/14$142
This Frontier deal was found by Cheapflights users on 9/14. 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 10/234:26 pmSEA - SFO
1 stop5h 27mFrontier
Sun 10/264:55 pmSFO - SEA
1 stop15h 53mFrontier
Deal found 9/14$144
This Expedia deal was found by Cheapflights users on 9/15. 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.
Fri 10/317:17 pmSEA - SFO
1 stop4h 52mMultiple Airlines
Tue 11/48:00 amSFO - SEA
Nonstop2h 23mMultiple Airlines
Deal found 9/15$146
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/148:00 amSEA - SFO
1 stop3h 51mAlaska Airlines
Sat 10/186:20 pmSFO - SEA
Nonstop2h 15mAlaska Airlines
Deal found 9/16$147

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 September 16, 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

Tue 10/21

8:42 am-10:59 am

Nonstop2h 17m

San Francisco

Sat 10/25

9:00 pm-11:20 pm

Nonstop2h 20m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 11/3

1:31 pm-3:43 pm

Nonstop2h 12m

San Francisco

Tue 11/11

8:00 am-10:23 am

Nonstop2h 23m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 10/15

11:20 am-4:03 pm

1 stop4h 43m

San Francisco

Wed 10/22

2:40 pm-4:58 pm

Nonstop2h 18m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 11/1

1:20 pm-3:35 pm

Nonstop2h 15m

San Francisco

Mon 11/3

10:44 pm-12:59 am

Nonstop2h 15m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 10/21

7:00 am-9:16 am

Nonstop2h 16m

San Francisco

Wed 10/22

8:00 am-2:35 pm

1 stop6h 35m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 11/8

1:20 pm-3:35 pm

Nonstop2h 15m

San Francisco

Mon 11/10

10:44 pm-12:59 am

Nonstop2h 15m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 10/9

7:00 am-9:16 am

Nonstop2h 16m

San Francisco

Mon 10/13

7:00 am-9:10 am

Nonstop2h 10m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 11/22

8:10 pm-10:25 pm

Nonstop2h 15m

San Francisco

Sun 11/23

6:00 am-8:23 am

Nonstop2h 23m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 12/10

4:40 pm-6:56 pm

Nonstop2h 16m

San Francisco

Sun 1/4

6:12 am-8:35 am

Nonstop2h 23m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 11/4

5:20 am-8:55 am

1 stop3h 35m

San Francisco

Mon 11/10

2:46 pm-5:05 pm

Nonstop2h 19m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
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 September 12, 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 30 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 $357). 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 September 16, 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. Saturday evenings 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 September 16, 2025.

The most flights from SEA to P4L are scheduled on a Monday (109 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (51 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 September 16, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian 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
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,957 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,924 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,174 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 76 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 134 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 United Airlines and Alaska Airlines fly from Seattle to Palo Alto in about 2h 12m. The time it takes to get you to your destination is usually consistent. The distance between Seattle and Palo Alto is about 679 mi. Most flights are nonstop.

  • 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: China Southern (100%), ITA Airways (100%), SWISS( 94%).

  • 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 $750, our data indicates the cheapest price to be $72. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $95.

  • 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 $357). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Palo Alto

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Las Vegas flights
Seattle to Los Angeles flights
Seattle to San Diego flights
Seattle to Ontario flights
Portland to Las Vegas flights
Seattle to Santa Ana flights
Everett to Las Vegas flights
Seattle to San Francisco flights
Portland to Los Angeles flights
Seattle to Palm Springs flights
Portland to Ontario flights
Seattle to Burbank flights
Seattle to San Jose flights
Portland to San Diego flights
Portland to Santa Ana flights
Everett to Los Angeles flights
Portland to Palm Springs flights
Portland to San Francisco flights
Everett to San Diego flights
Seattle to Oakland flights
Seattle to Sacramento flights
Everett to San Francisco flights
Seattle to Reno flights
Portland to Oakland flights
Everett to Santa Ana flights
Seattle to Santa Barbara flights
Portland to Burbank flights
Portland to San Jose flights
Portland to Sacramento flights
Spokane to Los Angeles flights
Seattle to Fresno flights
Spokane to Las Vegas flights
Portland to Reno flights
Seattle to Santa Rosa flights
Seattle to Long Beach flights
Spokane to Sacramento flights
Spokane to San Diego flights
Portland to Santa Barbara flights
Seattle to San Luis Obispo flights
Seattle to Monterey flights
Portland to Long Beach flights
Pasco to Los Angeles flights
Portland to Fresno flights
Portland to Santa Rosa flights
Bellingham to Las Vegas flights
Spokane to San Francisco flights
Portland to San Luis Obispo flights
Spokane to Palm Springs flights
Spokane to Ontario flights
Seattle to Redding flights

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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$88Average$246FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$91Average$215FlexibilityNo cancel feeOn-time65%
DeltaCheapest$98Average$230FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$100Average$213FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$116Average$270FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$122Average$246FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$126Average$232FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$389FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.