Seattle to San Jose, Costa Rica $341 Round-Trip on Alaska

Fly from Seattle to San Jose, Costa Rica for $341 round-trip on Alaska.

Seen below, we found seats departing SEA on Saturday, September 24, returning from SJO on Saturday, October 1. Flights connect via Los Angeles LAX.

Other dates are also available for travel from September through November.

For booking info, see our fare details.

Need a room in San Jose? Here's what's available on the above dates on Hotelwatchdog.