The average train between SeaTac/Airport Station and Sammamish takes 1h 12m and the fastest train takes 1h 10m. The train runs at least 3 times per hour from SeaTac/Airport Station to Sammamish. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run every 20 minutes between SeaTac/Airport Station and Sammamish. The earliest departure is at 10:53 AM in the morning, and the last departure from SeaTac/Airport Station is at 6:33 PM which arrives into Sammamish at 7:43 PM. All services require a transfer, and take on average 1h 12m. The schedules shown below are for the next available departures.

1h 11m • 1 change

1h 11m • 1 change

1h 11m • 1 change

1h 11m • 1 change
Want to know about travelling from SeaTac/Airport Station to Sammamish? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from SeaTac/Airport Station to Sammamish. However, there are services departing from SeaTac/Airport Station station and arriving at Sammamish station via Int'l Dist/Chinatown. The journey, including transfers, takes approximately 1h 12m.
SeaTac/Airport Station to Sammamish train services, operated by Sound Transit, depart from SeaTac/Airport station.
SeaTac/Airport Station to Sammamish train services, operated by Sound Transit, arrive at Redmond Technology station.
The distance between SeaTac/Airport Station and Sammamish is 27.3 km. The road distance is 44 km.
You can take a vehicle from SeaTac/Airport to Redmond Technology via Int'l Dist/Chinatown in around 1h 32m.