Flights from Seattle to San Jose
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From $155 · Prices update daily
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The quick answer
Flights from Seattle to San Jose start around $155 round-trip. Airlines on this route include: Alaska Airlines, Frontier Airlines (direct flights available). Cheapest month: August; peak: July (about +156%).
Price calendar — next 60 days
★ Cheapest: $155 on Wed, Aug 19 · Direct · AS
Lowest return fares · Prices update daily · Final price confirmed at booking
Price calendar — Seattle to San Jose
Month-by-month lowest fares. Green = cheapest dates.
United States essentials
🇺🇸 Domestic flight — no passport required
Domestic flight — no passport required for US citizens. Bring REAL ID for security.
Full San Jose visa guide →🆘 Emergency
911
💱 Currency
US Dollar ($)
🕐 Time zone
UTC−5 to −10
🗣️ Language
English
🔌 Plugs
Type A/B · 120V
🚗 Driving
Right side
💡 Tipping
Expected — 15–20% at restaurants
📞 Dial code
+1
Entry rules can change — always confirm with official sources before booking.
Stay connected in San Jose
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Seattle to San Jose trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in San Jose
Pre-book your ride into San Jose. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Seattle to San Jose flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Seattle to San Jose — frequently asked
How much is a flight from Seattle to San Jose?+
Fares start around $155 round-trip, ranging up to about $568 in peak periods. Prices update daily across 800+ airlines.
What is the cheapest month to fly Seattle to San Jose?+
August typically has the lowest fares, while July is the most expensive (around +156%).
Are there direct flights from Seattle to San Jose?+
Yes — direct flights are available on this route. Connecting itineraries are often cheaper.
Which airlines fly from Seattle to San Jose?+
Carriers on this route include Alaska Airlines, Frontier Airlines. Compare them side by side in the search above.
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