The average train between Sammamish and SeaTac takes 1h 12m and the fastest train takes 1h 10m. The train runs at least 5 times per hour from Sammamish to SeaTac. 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 15 minutes between Sammamish and SeaTac. The earliest departure is at 5:10 AM in the morning, and the last departure from Sammamish is at 11:56 PM which arrives into SeaTac at 1:10 AM. All services require a transfer, and take on average 1h 12m. The schedules shown below are for the next available departures.
Arrives next day

1h 14m • 1 change
Arrives next day

1h 14m • 1 change
Arrives next day

1h 14m • 1 change
Arrives next day

1h 14m • 1 change

1h 14m • 1 change

1h 10m • 1 change

1h 10m • 1 change

1h 10m • 1 change
Want to know about travelling from Sammamish to SeaTac? 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 Sammamish to SeaTac. However, there are services departing from Sammamish station and arriving at SeaTac station via Int'l Dist/Chinatown. The journey, including transfers, takes approximately 1h 12m.
Sammamish to SeaTac train services, operated by Sound Transit, depart from Redmond Technology station.
Sammamish to SeaTac train services, operated by Sound Transit, arrive at SeaTac/Airport station.
The distance between Sammamish and SeaTac is 26.7 km. The road distance is 44 km.
You can take a vehicle from Redmond Technology to SeaTac/Airport via Int'l Dist/Chinatown in around 1h 14m.