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Palo Alto

$68+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$139
(Kiwi.com)

One-way from

$68
(iWofly)

Popular in

June

Cheapest in

September

Average price

$274
From Seattle/Tacoma Intl to Palo Alto
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One-way flight from Seattle/Tacoma Intl to Palo Alto
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Highest demand for flights based on searches. 6% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/78:26 pmSEA - SFO
Nonstop2h 14mHawaiian Airlines
Mon 8/118:49 pmSFO - SEA
Nonstop2h 13mHawaiian Airlines
Deal found 6/12$139
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/164:42 pmSEA - SFO
Nonstop2h 11mAlaska Airlines
Mon 8/188:49 pmSFO - SEA
Nonstop2h 13mAlaska Airlines
Deal found 6/10$157
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/319:40 pmSEA - SFO
Nonstop2h 18mMultiple Airlines
Mon 8/47:49 pmSFO - SEA
Nonstop2h 11mMultiple Airlines
Deal found 6/11$173
This Southwest deal was found by Cheapflights users on 6/12. 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.
Fri 9/265:30 pmSEA - SFO
1 stop5h 10mSouthwest
Mon 9/295:15 pmSFO - SEA
1 stop7h 00mSouthwest
Deal found 6/12$177
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 7/3110:05 pmSEA - SFO
Nonstop2h 14mDelta
Mon 8/48:55 pmSFO - SEA
Nonstop2h 20mDelta
Deal found 6/10$182
This KAYAK deal was found by Cheapflights users on 6/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/43:11 pmSEA - SFO
1 stop6h 10mFrontier
Sun 7/65:45 amSFO - SEA
1 stop8h 21mFrontier
Deal found 6/11$223
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/145:10 amSEA - SFO
Nonstop2h 12mUnited Airlines
Thu 7/176:30 amSFO - SEA
Nonstop2h 18mUnited Airlines
Deal found 6/10$273

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 June 12, 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

Thu 8/7

8:26 pm-10:40 pm

Nonstop2h 14m

San Francisco

Mon 8/11

8:49 pm-11:02 pm

Nonstop2h 13m

$139

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 8/16

4:42 pm-6:53 pm

Nonstop2h 11m

San Francisco

Mon 8/18

8:49 pm-11:02 pm

Nonstop2h 13m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 7/31

9:40 pm-11:58 pm

Nonstop2h 18m

San Francisco

Mon 8/4

7:49 pm-10:00 pm

Nonstop2h 11m

$173

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 9/26

5:30 pm-10:40 pm

1 stop5h 10m

San Francisco

Mon 9/29

5:15 pm-12:15 am

1 stop7h 00m

$177

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 7/31

6:40 am-8:55 am

Nonstop2h 15m

San Francisco

Mon 8/4

5:55 am-8:05 am

Nonstop2h 10m

$182

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 7/4

3:11 pm-9:21 pm

1 stop6h 10m

San Francisco

Sun 7/6

5:45 am-2:06 pm

1 stop8h 21m

$223

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 7/14

5:10 am-7:22 am

Nonstop2h 12m

San Francisco

Thu 7/17

6:30 am-8:48 am

Nonstop2h 18m

$273

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 7/9

3:03 pm-11:42 pm

1 stop8h 39m

San Francisco

Thu 7/10

7:00 am-9:05 am

Nonstop2h 05m

$278

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 9/9

8:08 pm-10:23 pm

Nonstop2h 15m

$68

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 9/9

5:05 pm-7:19 pm

Nonstop2h 14m

$76

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 16 results
1
2

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 June 9, 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 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 $276). Flying from Seattle to Palo Alto in June is currently the most expensive (average of $364). 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 June 12, 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 June 12, 2025.

The most flights from SEA to P4L are scheduled on a Thursday (124 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

Rainfall in Palo Alto by month

Plan your trip to Palo Alto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Palo Alto ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit Palo Alto when rainfall is around 0.0 in.

Temperature in Palo Alto by month

Plan your trip to Palo Alto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Palo Alto, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Palo Alto have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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 71 daily outbound flights to Palo Alto from 9 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 123 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 $68 on Alaska Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $76 and Delta from $79 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: Horizon Air (100%), WestJet (90%), Aeromexico( 88%).

  • 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 $1,378, our data indicates the cheapest price to be $65. The most popular route (Seattle/Tacoma Intl - San Francisco), is priced around $144.

  • 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 $364). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$69Average$182FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$78Average$243FlexibilityNo cancel feeOn-time85%
FrontierCheapest$100Average$213FlexibilityNo cancel feeOn-time62%
DeltaCheapest$108Average$213FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$117Average$260FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$121Average$243FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$127Average$236FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$385FlexibilityNo cancel feeOn-time71%

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