Seattle to San José (Alajuela) (SEA–SJO) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
While no nonstop service exists between SEA and SJO, 1-stop connecting options are available.
Connection Landscape
On-Time Performance
Travel Essentials
SEA: PDT · SJO: CST
When it's 6:00 PM in Seattle, it's 7:00 PM in San José (Alajuela).
US passport holders enter Costa Rica visa-free for stays up to 180 days. No advance application is needed. Passport must be valid for at least one day beyond the date of entry. A return or onward ticket is required and airlines will check before boarding. Proof of funds (USD 100 per month of stay) may be requested at immigration.
Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).
Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.
SEA–SJO Quick Facts
Frequently Asked Questions
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Denver, George Bush Intercontinental and Dallas Fort Worth. Two-stop connections are also available via intermediate hubs.