Route guide

Cheap Flights from Seattle to San Jose | EazAir

Travellers

Seattle to San Jose flight insights

Average flight time

~2h 7m (estimated)

SEA → SJC

Cheapest month

—

Based on cached fare history

Cheapest cached price

$79

Checking live fares…

Prices shown may not be current. Last checked: Sep 29, 2026.

Planning a trip from Seattle to San Jose? The average flight time on this route is ~2h 7m (estimated). The lowest fare we recorded on this route recently was $79 (last checked Sep 29, 2026); today's live fare for your dates can differ.

Seattle to San Jose covers a straight-line distance of about 697 miles. Based on that distance, a nonstop flight would take approximately ~2h 7m (estimated). Actual flight time varies by airline, aircraft and routing.

Route Quick Facts

Quick facts for flights from Seattle to San Jose on Eazair
OriginSeattle (SEA)
DestinationSan Jose (SJC)
Average Flight Time~2h 7m (estimated)
Cheapest Month to Fly—
Current Lowest Fare$79
Fares Last CheckedSep 29, 2026

Flight deals from Seattle to San Jose

Traveling from the Pacific Northwest to the heart of Silicon Valley requires navigating a well-serviced air corridor. Flights from Seattle (SEA) to San Jose (SJC) operate multiple times a day, giving travelers plenty of scheduling options. Alaska Airlines serves as the dominant carrier for this route, offering frequent nonstop departures from Seattle-Tacoma International Airport directly into Norman Y. Mineta San Jose International Airport. Southwest Airlines and Delta Air Lines also provide regular service, ensuring business and leisure passengers can easily transition from the rainy tech hub of Washington to the sunny tech epicenter of California. A typical nonstop flight from Seattle to San Jose takes approximately two hours and fifteen minutes in the air. Passengers cover a flight distance of roughly 697 miles down the West Coast, tracing a path over Oregon and Northern California before descending into the South Bay. Morning departures from SEA often cater to business travelers heading to Silicon Valley meetings, while afternoon and evening flights allow tourists to arrive just in time for dinner in downtown San Jose. Connecting flights are rarely necessary given the high volume of direct flights, though carriers like United Airlines may route passengers through San Francisco before arriving at SJC. The demand for travel between Seattle and San Jose fluctuates based on major tech conferences and seasonal weather escapes. October and November often emerge as the busiest travel months for this route, driven by autumn corporate events and Washington residents seeking warmer California autumns. Conversely, January tends to see lighter passenger traffic flying into San Jose from Seattle, making it an excellent time to secure preferred seating and avoid crowded departure gates. Spring travel between these two coastal states also sees a steady increase, particularly around April when outdoor conditions in the Santa Clara Valley are highly favorable compared to lingering Pacific Northwest showers.

View of San Jose, a popular flight destination from Seattle

About San Jose

Popular areas to know in San Jose include Willow Glen, Japantown, and Downtown.

A Mediterranean climate with warm, dry summers and mild, wetter winters — generally sunnier than nearby San Francisco.

Frequently asked questions

How long is the flight from Seattle to San Jose?
A direct flight from Seattle to San Jose typically takes about two hours and fifteen minutes, covering a total distance of 697 miles down the West Coast.
Which airlines offer direct flights from Seattle to San Jose?
Alaska Airlines, Southwest Airlines, and Delta Air Lines frequently offer nonstop flights from Seattle to San Jose, providing multiple daily departure choices.
What are the departure and arrival airports for flights from Seattle to San Jose?
Flights originate at Seattle-Tacoma International Airport (SEA) and land at Norman Y. Mineta San Jose International Airport (SJC).
What is the busiest month to fly from Seattle to San Jose?
October and November are generally the busiest months to fly from Seattle to San Jose due to peak corporate travel seasons and tech industry events in the Santa Clara Valley.
How early should I arrive at the airport for my flight from Seattle to San Jose?
Passengers should arrive at Seattle-Tacoma International Airport at least two hours before their scheduled departure to San Jose to allow enough time for security screening and boarding.
Are there early morning flights from Seattle to San Jose?
Yes, several carriers schedule early morning flights from Seattle to San Jose, often departing around 6:00 AM to accommodate business professionals needing to reach Silicon Valley by the start of the workday.
When is the least crowded time to travel from Seattle to San Jose?
January is usually the least crowded month to travel from Seattle to San Jose, offering quieter terminals and fewer passengers on board following the winter holiday rush.
Can I bring a carry-on bag on my flight from Seattle to San Jose?
Major carriers flying from Seattle to San Jose generally permit one carry-on bag and one personal item, though basic economy tickets on certain airlines may have different size restrictions.
Is it common to experience weather delays when flying from Seattle to San Jose?
While San Jose enjoys mild weather year-round, heavy winter rain or fog in Seattle can occasionally cause departure delays, especially during December and January.
How far in advance should I book my flight from Seattle to San Jose?
For the best availability on direct routes, travelers should book their flights from Seattle to San Jose at least three to four weeks before their planned departure date.
Does the flight from Seattle to San Jose cross any time zones?
No, both Seattle and San Jose are located in the Pacific Time Zone, so travelers will not experience any time changes during their journey down the coast.
How far is it from Seattle to San Jose?
The straight-line distance from Seattle to San Jose is about 697 miles.
What ID do I need to fly from Seattle to San Jose?
Since Seattle to San Jose is a domestic US flight, you'll need a REAL ID-compliant driver's license or another TSA-accepted form of ID, such as a valid US passport. A standard, non-compliant driver's license alone is no longer accepted at TSA checkpoints.
Which airlines operate flights from Seattle to San Jose?
Based on a recent live fare search, Southwest Airlines, Frontier Airlines and American Airlines had bookable flights on the Seattle to San Jose route.
What's the weather usually like in San Jose?
A Mediterranean climate with warm, dry summers and mild, wetter winters — generally sunnier than nearby San Francisco.

Airline bag fees

Baggage allowances differ significantly between fare classes (Basic/Light vs. Standard/Flex) and can change over time. Always verify the exact allowance for your specific fare with the airline before you fly.

Checked bag fees from each airline's own website
AirlineCarry-on, basic economy1st checked bag2nd checked bagSource
American AirlinesIncluded$45$55aa.com, Sep 24, 2026
United AirlinesNot included$40$50united.com, Sep 24, 2026
Delta Air LinesIncluded$45$55delta.com, Sep 24, 2026
JetBlueIncluded$45$59jetblue.com, Sep 24, 2026
Alaska AirlinesIncluded$45$55alaskaair.com, Sep 24, 2026
Frontier AirlinesNot includedVariesVariesflyfrontier.com, Sep 24, 2026
Sun Country AirlinesNot includedVariesVariessuncountry.com, Sep 24, 2026

Domestic US fees per bag, each way, when paid online in advance. "Varies" means the airline prices bags by route and date.

Travel tips

Arrive early for domestic flights

TSA generally recommends arriving at least 2 hours before a domestic departure, more at larger hub airports during peak travel periods.

Pack a mixed carry-on

Keep a change of clothes, chargers, and any essentials in your carry-on rather than only your checked bag, in case of a delay or a bag that doesn't arrive with you.

Ease jet lag on longer routes

On longer cross-country flights, adjusting your sleep schedule a day or two before departure and staying hydrated in flight can reduce jet lag on arrival.

Screenshot your confirmation

Save a screenshot or PDF of your booking confirmation and boarding pass before you travel, in case you lose signal or battery at the airport.

Check in online when it opens

Most airlines open online check-in 24 hours before departure — checking in early can help with seat selection and, on some airlines, boarding group assignment.

Flying back? Flights from San Jose to Seattle

Airlines seen in our fare searches for this route: Southwest Airlines, Frontier Airlines, American Airlines