SEA - SJC

C$ 123 Find Cheap Flights from Seattle to San Jose

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to San Jose departing on 20/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Jose

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Jose, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to San Jose, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 217
Typical prices: C$ 584-C$ 289
Alaska Airlines
Tue 28/4Tue 5/5
SEA - SJC • Direct
Cheapest one-way flights
C$ 123
Typical prices: C$ 116-C$ 233
Delta
Wed 20/5
SEA - SJC • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Alaska's Wine Flies Free program benefits wine lovers.
Southwest's two free checked bags suit heavy packers.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Cheapest • from C$ 217 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with Alaska Airlines, Delta, and Southwest. Average duration is 2h 18m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 62% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
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Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
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)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to San Jose that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to San Jose

Tue, 28 Apr - Tue, 5 May
Alaska Airlines Logo
5:31 p.m. - 7:46 p.m.
SEA
-
SJC
2h 15mdirect
Alaska Airlines Logo
2:44 p.m. - 5:00 p.m.
SJC
-
SEA
2h 16mdirect
C$ 217Alaska Airlines
Wed, 17 Jun - Wed, 24 Jun
Southwest Logo
4:35 p.m. - 11:00 p.m.
SEA
-
SJC
6h 25m
1 stop
Southwest Logo
6:35 a.m. - 8:50 a.m.
SJC
-
SEA
2h 15mdirect
C$ 231Southwest
Wed, 17 Jun - Wed, 24 Jun
Southwest Logo
7:30 a.m. - 9:45 a.m.
SEA
-
SJC
2h 15mdirect
Southwest Logo
4:30 p.m. - 12:40 a.m.
SJC
-
SEA
8h 10m
2 stops
C$ 238Southwest
Sat, 9 May - Wed, 13 May
Alaska Airlines Logo
6:31 p.m. - 8:48 p.m.
SEA
-
SJC
2h 17mdirect
Alaska Airlines Logo
1:14 p.m. - 3:31 p.m.
SJC
-
SEA
2h 17mdirect
C$ 252Alaska Airlines
Tue, 2 Jun - Tue, 16 Jun
Southwest Logo
6:50 a.m. - 1:45 p.m.
SEA
-
SJC
6h 55m
2 stops
Southwest Logo
4:30 p.m. - 12:40 a.m.
SJC
-
SEA
8h 10m
2 stops
C$ 259Southwest
Thu, 30 Apr - Tue, 5 May
Alaska Airlines Logo
5:31 p.m. - 7:46 p.m.
SEA
-
SJC
2h 15mdirect
Alaska Airlines Logo
8:00 a.m. - 10:18 a.m.
SJC
-
SEA
2h 18mdirect
C$ 262Alaska Airlines
Sat, 30 May - Tue, 2 Jun
Southwest Logo
6:40 a.m. - 12:50 p.m.
SEA
-
SJC
6h 10m
1 stop
Southwest Logo
6:20 a.m. - 8:40 a.m.
SJC
-
SEA
2h 20mdirect
C$ 266Southwest
Wed, 29 Apr - Sun, 3 May
Alaska Airlines Logo
7:15 a.m. - 9:30 a.m.
SEA
-
SJC
2h 15mdirect
Alaska Airlines Logo
6:15 a.m. - 8:39 a.m.
SJC
-
SEA
2h 24mdirect
C$ 273Alaska Airlines
Thu, 7 May - Tue, 12 May
Southwest Logo
8:45 p.m. - 10:55 p.m.
SEA
-
SJC
2h 10mdirect
Southwest Logo
11:15 a.m. - 6:00 p.m.
SJC
-
SEA
6h 45m
1 stop
C$ 276Southwest
Wed, 6 May - Thu, 7 May
Southwest Logo
7:50 a.m. - 10:05 a.m.
SEA
-
SJC
2h 15mdirect
Southwest Logo
5:50 p.m. - 12:55 a.m.
SJC
-
SEA
7h 05m
2 stops
C$ 277Southwest
Booking Insights

KAYAK's insights & trends for Seattle to San Jose flights

Get data-powered insights and trends into flights from Seattle to San Jose to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to San Jose, California departing in April.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to San Jose, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to San Jose is October, where tickets cost C$ 287 (return) on average. On the other hand, the most expensive months are February and April, where the average cost of round-trip tickets is C$ 468 and C$ 436 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to San Jose, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to San Jose, you should book around 4 weeks before departure, which saves you about 62% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to San Jose

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
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.

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.

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.

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.

Good to know

Low seasonJanuary
Cheapest flightC$ 123
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (30% more expensive on average)
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

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

Insights shared by verified travellers who flew the route from Seattle to San Jose 
GeraldFlew with Delta
SEA
-
SJC
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
SEA
-
SJC
Aug 2024
The airport is busy and a mess with construction. There is a train to take so account for extra time.

FAQs for booking flights from Seattle to San Jose

  • Which hotels have free shuttles from Norman Y. Mineta San Jose International Airport (SJC)?

    Many hotels near San Jose offer complimentary shuttles from the airport. If you are looking for a pocket-friendly hotel near SJC, choose La Quinta Inn & Suites by Wyndham San Jose Airport, which has free airport shuttles and is a short distance from Santa Clara Convention Center. Alternatively, Biltmore Hotel and Suites Santa Clara Hotel provides airport shuttles and is a short drive from California’s Great America theme park.

  • What is there to do at Seattle-Tacoma International Airport?

    In addition to the airport’s live music at various locations in the terminal, the airport enhances travelers’ experience with artistic offerings. Permanent collections and rotating exhibits display a mix of international and local artists and provide passengers with an interesting way to kill time before their flight. These can be found on Concourses N, C, B, A, D, and the Baggage Claim Hall.

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

    If you and your children are on a flight to San Jose from Seattle, be sure to take advantage of the airport’s numerous kid-friendly amenities. In addition to Gates A and B’s nursing rooms, the Zoom Zone interactive play space in Terminal B between Gates 25 and 24 is a great place to keep your kids entertained after you deplane.

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

    You can hail a cab or take the Local Link Train from Chinatown Station/International District. Alternatively, you may take one of the many buses like King County Metro buses from South 176th street and State Highway 99.

  • What is the cheapest flight from Seattle to San Jose?

    In the last 3 days, the lowest price for a flight from Seattle to San Jose was C$ 123 for a one-way ticket and C$ 217 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to San Jose?

    Alaska Airlines, American Airlines, Delta, JetBlue, and Hawaiian Airlines offer inflight Wi-Fi service on the Seattle to San Jose flight route.

  • Which aircraft models fly most regularly from Seattle to San Jose?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to San Jose flight route.

  • Which airline alliances offer flights from Seattle to San Jose?

    oneworld is the only airline alliance operating flights between Seattle and San Jose.

  • On which days can I fly direct from Seattle to San Jose?

    There are direct flights from Seattle to San Jose on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to San Jose?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to San Jose.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to San Jose?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to San Jose?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to San Jose?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to San Jose

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 332 or less one-way.
  • For passengers who have Fido traveling with them, a variety of pet relief spots are provided throughout Seattle-Tacoma International Airport (SEA). Outside the Main Terminal, there are two pet relief stations, while three are placed inside the airport. These inside pet relief spots are found in South Satellite, Concourse B, and North Satellite.
  • If you are taking your bike to SeaTac Airport, there is a bike facility at the premises with complimentary pumps and tools, making assembling and disassembling your bike an effortless task before your journey. The airport offers long-term storage as well as day storage at the Atrium close to baggage claim carousel 2 and door 4, or the baggage claim close to the exits of Gates C and D.
  • Proceed to the USO lounge in Norman Y. Mineta San Jose Airport (SJC) if you or your family member is a member of the U.S. Military. This facility, between Terminals B and A, offers travelers workstations, food, magazines, and television.
  • Direct flights from Seattle to San Jose are more sustainable than flights with stops, with approximately 1,698 lbs of carbon being released per person. If you wish to be more sustainable in your travels, Alaska Airlines, American Airlines, and Southwest Airlines are eco-friendlier. They release 50%, 42%, and 39% less carbon respectively.
  • If you have questions regarding SeaTac Airport or need assistance locating your gate, look out for the airport volunteers in bright blue vests. These volunteers are stationed around each terminal and are available to answer any questions you might have about the airport’s services and flights.

Prefer to fly direct from Seattle to San Jose?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl 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 nonstop 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 nonstop flights

Reviews of the top airline flying from Seattle to San Jose

 
See real verified KAYAK customer reviews for airlines flying from Seattle to San Jose. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to San Jose? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12197 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Food
7.0Entertainment
Airline reviews

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

10.0 ExcellentAnonymous, Apr 2026
SEA - SMF
Read more Alaska Airlines reviews

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

It was a bumpy flight but the crew was very attentive and made it a safe and enjoyable experience.

i canceled my flight from SEA to SFO, SNA to SEA and received full refund from Alaska Airlines. i am pleased with the customer service.

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

i canceled my return flight package with Alaska Airlines. Customer Service was excellent and assisted me to cancelled both of our reservations and returned the payment in full. that is excellent service and understanding and empathy of the customers' needs. i like Alaska Airlines and recommend AS to everyone.

The flight attendant was friendly and attentive. Although our interaction was brief—- it made a difference. The crew was upfront about turbulence. I like the Maui pretzels.

I paid for the WiFi and it didn’t work during the whole flight

Great experience, staff and crew were very professional, friendly and helpful!

The ticket I purchased through Kayak did not show up in my Alaska Airlines app, and neither of the codes given to me worked for online check in. I've never had to show up to the airport at 6am wondering if I've been scammed. Cheap flight fare or whatever does not play well with airlines and I will be wary of using Kayak in the future.

The plane was delayed which was annoying. No seat back screens is a bummer. Staff if great

Everything you need to know for your flight from Seattle to San Jose

Information on your arrival and departure airports