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$79+ Cheap flights from Seattle to San Jose (SEA - SJC)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJC
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 San Jose are usually found in September or August, booked 87 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to San Jose

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Jose (SJC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$141
(Alaska Airlines)

One-way from

$79
(Kissandfly.com)

Popular in

November

Cheapest in

September

Average price

$272

Good round-trip deal

$158 or less

Good one-way deal

$110 or less
From Seattle/Tacoma Intl to San Jose
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One-way flight from Seattle/Tacoma Intl to San Jose
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Highest demand for flights based on searches. 8% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% 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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Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Jose.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to San Jose.
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Find flight deals from Seattle to San Jose

Cheapest flights from Seattle to San Jose
Explore the most affordable flight options available from Seattle to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

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.
Tue 8/267:00 amSEA - SJC
Nonstop2h 11mAlaska Airlines
Tue 8/2611:43 amSJC - SEA
1 stop6h 07mAlaska Airlines
Deal found 7/31$141
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:47 pmSEA - SJC
Nonstop2h 12mHawaiian Airlines
Sat 9/204:58 pmSJC - SEA
1 stop4h 26mHawaiian Airlines
Deal found 7/30$144
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:10 amSEA - SJC
2 stops6h 25mSouthwest
Wed 9/311:55 amSJC - SEA
Nonstop2h 15mSouthwest
Deal found 7/30$152
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:25 amSEA - SJC
Nonstop2h 24mDelta
Mon 9/17:23 amSJC - SEA
Nonstop2h 22mDelta
Deal found 7/31$157
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:30 amSEA - SJC
1 stop5h 55mAmerican Airlines
Wed 10/296:00 amSJC - SEA
1 stop8h 59mAmerican Airlines
Deal found 7/29$159
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:41 amSEA - SJC
1 stop28h 45mFrontier
Mon 9/112:01 pmSJC - SEA
1 stop12h 33mFrontier
Deal found 7/29$195
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:15 pmSEA - SJC
1 stop5h 24mMultiple Airlines
Fri 8/228:00 amSJC - SEA
Nonstop2h 17mMultiple Airlines
Deal found 7/29$208

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to San Jose 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 San Jose that are best for you.

Fly from

Seattle

Fly to

San Jose

Route

Depart

Return

Price

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Tue 8/26

9:42 am-11:57 am

Nonstop2h 15m

San Jose

Tue 8/26

3:00 pm-8:35 pm

1 stop5h 35m

$141

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Sat 9/13

6:47 pm-8:59 pm

Nonstop2h 12m

San Jose

Sat 9/20

4:58 pm-9:24 pm

1 stop4h 26m

$144

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Wed 8/27

10:10 am-4:35 pm

2 stops6h 25m

San Jose

Wed 9/3

11:55 am-2:10 pm

Nonstop2h 15m

$152

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Sat 8/30

8:35 am-10:55 am

Nonstop2h 20m

San Jose

Sun 8/31

11:35 am-1:53 pm

Nonstop2h 18m

$157

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Wed 10/22

6:30 am-12:25 pm

1 stop5h 55m

San Jose

Wed 10/29

6:00 am-2:59 pm

1 stop8h 59m

$159

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Wed 8/27

6:41 am-11:26 am

1 stop28h 45m

San Jose

Mon 9/1

12:01 pm-12:34 am

1 stop12h 33m

$195

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Tue 8/19

5:15 pm-10:39 pm

1 stop5h 24m

San Jose

Fri 8/22

8:00 am-10:17 am

Nonstop2h 17m

$208

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Tue 10/21

9:28 am-11:44 am

Nonstop2h 16m

$79

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Wed 10/15

11:04 am-6:29 pm

1 stop7h 25m

$80

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Sat 8/23

9:50 am-5:40 pm

2 stops7h 50m

$84

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 15 results
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The best insider tips for Seattle to San Jose flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to San Jose trip
Airports
SEA

Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for free security screening appointments to reduce wait times.

Read more about SEAby Brandon Schultz
SJC

For quick city access from SJC, use the Airport Flyer bus to connect with BART or CalTrain for easy transit to San Francisco or other Bay Area locations.

Read more about SJCby Daniel Scheffler
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on SJC

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Seattle to San Jose

Have a flexible travel schedule? Discover the best time to fly to San Jose 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 San Jose

How far ahead should I book a flight from Seattle to San Jose?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Jose. Price data was last updated on July 25, 2025.

The price you pay for your flight from Seattle to San Jose may vary depending on when you book. For the best chance of a lower fare, look to book 31 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 San Jose?

Currently, September is the cheapest month in which you can book a flight from Seattle to San Jose (average of $255). Flying from Seattle to San Jose in June is currently the most expensive (average of $359). 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 SJC?

Find hourly flight availability from Seattle to San Jose. 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.

One of the essential ways to save on airfare from Seattle to San Jose is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 6% on airfare.

What is the cheapest day to fly from Seattle to San Jose?

Use this chart to determine the cheapest time to fly round-trip from Seattle to San Jose. Price data was last updated on July 27, 2025.

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

Weekly flight availability from Seattle to San Jose

Explore weekly flight availability from Seattle to San Jose. 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 SJC are scheduled on a Thursday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

Reviews of airlines servicing San Jose

Get insights into the airlines that provide service to San Jose. 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 San Jose. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Seattle to San Jose, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

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

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

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.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

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
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

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
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

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.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

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 San Jose. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to San Jose?

    To fly from Seattle to San Jose, you need to book a flight from Seattle/Tacoma Intl (SEA) to San Jose (SJC). Nonstop flights to San Jose from Seattle/Tacoma Intl take 2h 08m on average. When it comes time to book airfare, you have a few options: there are 36 outbound flights from Seattle/Tacoma Intl to San Jose offered by 6 different airlines.

  • How popular is this Seattle to San Jose flight route?

    This flight path from Seattle/Tacoma Intl to San Jose was viewed by 18 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 flying from Seattle to San Jose round-trip?

    Cheapflights users have booked flights from Seattle to San Jose round-trip from $141. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $144, and Southwest, from $152. Alaska Airlines is 42% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to San Jose one-way?

    $79 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $80 and $84, respectively.

  • What are the most reliable airlines from Seattle to San Jose?

    The top 3 most reliable airlines when flying from Seattle to San Jose are Scandinavian Airlines (95%), Aeromexico (92%) and WestJet (91%).

  • What are the cheapest flights from Seattle to San Jose?

    While on average a flight from Seattle to San Jose is generally $240, our data shows the cheapest flight currently is $68. When looking at the most popular route, (Seattle/Tacoma Intl - San Jose), you can expect to pay $132 for that flight.

  • Can I find deals for flights from Seattle to San Jose that include hotel bookings?

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

  • How can I find direct flights from Seattle to San Jose?

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

  • Can I find deals for business class flights from Seattle to San Jose?

    Yes. Cheapflights offers flight deals from Seattle to San Jose 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 San Jose?

    Currently, September is the cheapest month in which you can book a flight from Seattle to San Jose (average of $255). Flying from Seattle to San Jose in June is currently the most expensive (average of $359). 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

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Top 6 airlines flying from Seattle to San Jose

Discover the top 6 airlines that operate flights from Seattle to San Jose. 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$220FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$78Average$243FlexibilityNo cancel feeOn-time85%
DeltaCheapest$114Average$226FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$128Average$219FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$133Average$274FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$133Average$227FlexibilityNo cancel feeOn-time63%

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