SEA - SJC

$79 Find Cheap Flights from Seattle to San Jose - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$147
Typical prices: $200-$427
Southwest
Wed 12/5Tue 12/11
SEA - SJC • 1 stop
Cheapest non-stop
$151
Typical prices: $201-$427
Alaska Airlines
Mon 11/19Sat 11/24
SEA - SJC • Non-stop
Advice from real travelers
Southwest free carry-on adds value, while Delta offers free Wi-Fi for SkyMiles.
Alaska's 20-minute baggage guarantee helps on this busy SEA to SJC route.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with Alaska Airlines, Delta and Southwest. Average duration is 2h 17m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 68% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $300 (round-trip)
Shortest trip • 7h 24m (one-way)
Insights
Insights
Start a new search
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We hope you love your trip to San Jose!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to San Jose (SEA-SJC)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to San Jose

Sat, Dec 5 - Fri, Dec 11
Southwest Logo
12:05 pm - 7:15 pmSEA  Seattle/Tacoma Intl-SJC San Jose
7h 10m1 stop Las Vegas Harry Reid Intl
Southwest Logo
12:50 pm - 3:05 pmSJC  San Jose-SEA Seattle/Tacoma Intl
2h 15mnonstop
$147Southwest
Mon, Dec 7 - Mon, Dec 7
Southwest Logo
8:05 am - 10:20 amSEA  Seattle/Tacoma Intl-SJC San Jose
2h 15mnonstop
Southwest Logo
1:40 pm - 10:50 pmSJC  San Jose-SEA Seattle/Tacoma Intl
9h 10m1 stop Denver Intl
$147Southwest
Thu, Nov 19 - Mon, Nov 23
Southwest Logo
5:15 am - 12:00 pmSEA  Seattle/Tacoma Intl-SJC San Jose
6h 45m2 stops Sacramento Intl Los Angeles
Southwest Logo
8:45 pm - 11:10 pmSJC  San Jose-SEA Seattle/Tacoma Intl
2h 25mnonstop
$149Southwest
Thu, Nov 19 - Tue, Nov 24
Alaska Airlines Logo
7:21 am - 9:43 amSEA  Seattle/Tacoma Intl-SJC San Jose
2h 22mnonstop
Alaska Airlines Logo
6:15 am - 8:34 amSJC  San Jose-SEA Seattle/Tacoma Intl
2h 19mnonstop
$151Alaska Airlines
Thu, Jan 7 - Tue, Jan 12
American Airlines Logo
6:00 am - 12:08 pmSEA  Seattle/Tacoma Intl-SJC San Jose
6h 08m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
12:58 pm - 8:53 pmSJC  San Jose-SEA Seattle/Tacoma Intl
7h 55m1 stop Phoenix Sky Harbor Intl
$159American Airlines
Thu, Nov 19 - Tue, Nov 24
Frontier Logo
9:13 pm - 3:30 pmSEA  Seattle/Tacoma Intl-SJC San Jose
18h 17m1 stop Las Vegas Harry Reid Intl
Frontier Logo
4:15 pm - 12:37 pmSJC  San Jose-SEA Seattle/Tacoma Intl
20h 22m1 stop Las Vegas Harry Reid Intl
$160Frontier
Sat, Nov 21 - Mon, Nov 23
Delta Logo
5:45 pm - 8:07 pmSEA  Seattle/Tacoma Intl-SJC San Jose
2h 22mnonstop
Delta Logo
7:21 am - 9:54 amSJC  San Jose-SEA Seattle/Tacoma Intl
2h 33mnonstop
$161Delta
Thu, Nov 19 - Tue, Nov 24
Delta Logo
8:30 am - 10:50 amSEA  Seattle/Tacoma Intl-SJC San Jose
2h 20mnonstop
Delta Logo
7:25 pm - 9:50 pmSJC  San Jose-SEA Seattle/Tacoma Intl
2h 25mnonstop
$161Delta
Sun, Nov 22 - Tue, Dec 1
Alaska Airlines Logo
8:27 pm - 10:40 pmSEA  Seattle/Tacoma Intl-SJC San Jose
2h 13mnonstop
Alaska Airlines Logo
6:15 am - 8:34 amSJC  San Jose-SEA Seattle/Tacoma Intl
2h 19mnonstop
$164Alaska Airlines
Tue, Dec 29 - Fri, Jan 1
Alaska Airlines Logo
7:10 am - 9:28 amSEA  Seattle/Tacoma Intl-SJC San Jose
2h 18mnonstop
Alaska Airlines Logo
6:15 am - 8:35 amSJC  San Jose-SEA Seattle/Tacoma Intl
2h 20mnonstop
$167Alaska Airlines
Booking Insights

Price, demand and travel trends for Seattle to San Jose flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Seattle to San Jose?

Round-trip flights from Seattle to San Jose typically range from $200 to $427. The lowest price found in the past 5 days was $147, on Southwest.

What's the cheapest day of the week to fly from Seattle to San Jose?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Seattle to San Jose. It’s 7% cheaper than the average day, while Monday is the most expensive, with prices 34% higher.

What’s the cheapest month to fly from Seattle to San Jose?

•October is the cheapest month to fly from Seattle to San Jose at $227 round-trip.
•February ($350) and November ($302) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 54% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to San Jose the cheapest?

Flights from Seattle to San Jose are cheapest 7 weeks before departure. Booking in this window typically costs about 68% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to San Jose

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Bill Fink

Bill Fink

Expert on SJC

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Key details for Seattle to San Jose flights

Low season

October

Cheapest flight

$79
Beat the crowds with an average 19% drop in travelers.
The most popular month to fly with an average 24% increase in travelers.
One-way flight from Seattle to San Jose

When to book flights from Seattle to San Jose

Are your dates flexible? Find out the best times to travel from Seattle to San Jose based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Seattle to San Jose: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Seattle to San Jose 
Verified travelerFlew with Alaska Airlines-Jul 2026
Super easy to park in the Economy Lot #1 and take the shuttle to the terminal.
GeraldFlew with Delta-Mar 2026
Flights earlier in the day are better - less chance of stacking delays. Much better than SFO flights, They're terrible in August (fog).
Verified travelerFlew with Alaska Airlines-Aug 2024
The airport is busy and a mess with construction. There is a train to take so account for extra time.

Your Seattle to San Jose flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Seattle to San Jose?

    These are the earliest and latest flight times available from Seattle to San Jose:

    • Earliest: departs at 6:30 am and lands at 8:47 am
    • Latest: departs at 9:41 pm and lands at 11:58 pm.

    The flight takes about 2h 17m.

  • What cabin classes can I book on flights from Seattle to San Jose?

    Three cabin classes are available on flights from Seattle to San Jose:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from Seattle to San Jose?

    A nonstop flight from Seattle to San Jose takes 2h 17m, covering 697 miles.

  • Do I need a passport to fly from Seattle to San Jose?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Seattle to San Jose flight?

    Round-trip flights from Seattle to San Jose range from $200 to $427, with an average of $279 over the past 12 months. Anything below $200 counts as a good deal.

  • How expensive are last-minute Seattle to San Jose flights?

    Last-minute fares on this route (booked within two weeks of departure) run 107% above the $279 route average. Book 7 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Seattle to San Jose?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $279 round-trip, compared to $300 via a layover through Las Vegas Harry Reid Intl (LAS).

  • What is the standard checked-bag allowance on flights from Seattle to San Jose?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to San Jose?

    The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines and Southwest. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

  • How are flight departures from Seattle to San Jose spread across the day?

    Morning is the busiest departure period on Seattle to San Jose flights, with 46% of flights leaving in that window. Afternoon departures account for 27%, evening flights for 27%, and night flights for 0%.

  • Which airlines offer Wi-Fi on Seattle to San Jose flights?

    Two airlines offer in-flight Wi-Fi on Seattle to San Jose flights:

    • Alaska Airlines
    • Delta

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from Seattle to San Jose looking right now?

    One-way fares from Seattle to San Jose are currently lower than usual. Average one-way flight prices are about $79, which is 63% below the typical average for this route.

  • What car rental options are available at San Jose Airport (SJC)?

    San Jose Airport (SJC) hosts 5 major car rental companies, with daily rates averaging $59 for economy cars. Top options include:

    • Europcar
    • Fox
    • Dollar
    • Thrifty
    • Hertz

  • Which airports can I use when flying from Seattle to San Jose?

    Flights from Seattle to San Jose usually depart from Seattle/Tacoma Intl (SEA) and arrive at San Jose (SJC).

  • Which airports do connecting flights from Seattle to San Jose pass through?

    Connecting flights from Seattle to San Jose most commonly pass through:

    • Las Vegas Harry Reid Intl (LAS) - 60% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 40% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to San Jose?

    Yes. Flexible dates can save you up to 31% on flights from Seattle to San Jose. Wednesday is the cheapest departure day at $262 round-trip on average, while Monday is the most expensive at $375, a difference of $113.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Seattle to San Jose?

    3 airlines operate flights between Seattle and San Jose. The airlines offering nonstop flights on this route include:

    • Alaska Airlines
    • Delta
    • Southwest

  • How much time can I save by choosing a different layover airport from Seattle to San Jose?

    Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 7h 24m, compared with 15h 24m via Las Vegas Harry Reid Intl (LAS).

  • What popular places can I visit in San Jose?

    Some of the most popular sights in San Jose are San Jose McEnery Convention Center, SAP Center at San Jose and Civic Auditorium. These are among the most viewed places in San Jose on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Seattle to San Jose flights?

    Among airlines operating Seattle to San Jose flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Seattle to San Jose flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • Delta: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • How do I get to SeaTac Airport from downtown Seattle?

    Travelers can hail a cab or take the Local Link Train from Chinatown Station/International District. Many bus options are also available, including King County Metro buses from South 176th Street and State Highway 99.

  • Does SJC offer any services for families traveling with children?

    Yes. SJC offers several family-friendly amenities. Nursing rooms are located near Gates A and B. The Zoom Zone interactive play space is in Terminal B between Gates 25 and 24.

Your guide to booking Seattle to San Jose flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $262, about $113 less than Monday fares (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 68% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to San Jose trip for October. Fares historically average $227 round-trip in that month - typically $123 less than the most expensive month, which is February (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Jose Airport.

    • Country Inn & Suites by Radisson, San Jose Airport
    • Holiday Inn San Jose - Silicon Valley by IHG
    • Spark by Hilton San Jose Airport
  • If you're taking your bike to SeaTac Airport, use the on-site bike facility. It has complimentary pumps and tools, so assembling or disassembling your bike before your trip is easier.
  • If you need help finding your gate, look for a Pathfinder wearing bright green in the terminal. They can give you directions and provide assistance.
  • Traveling on active-duty U.S. military orders? Head to the Military Lounge at Norman Y. Mineta San Jose Airport (SJC), but arrange access in advance. Located between Terminals B and A, it offers tables and chairs, snacks and beverages, books and a large-screen television.

Prefer to fly direct from Seattle to San Jose?

 
Find which airlines fly direct from Seattle/Tacoma Intl Airport to San Jose Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to San Jose

Monday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Wednesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Thursday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Friday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

See more direct flights

Direct returns

San Jose to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Wednesday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Thursday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Friday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

See more direct flights

More options for your flight from Seattle to San Jose

Complete your trip to San Jose with a hotel stay or car rental