The average bus between Union Station and Seattle Airport (SEA) takes 48 min and the fastest bus takes 38 min. The bus runs at least 2 times per hour from Union Station to Seattle Airport (SEA). The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run every 30 minutes between Union Station and Seattle Airport (SEA). The earliest departure is at 2:23 AM at night, and the last departure from Union Station is at 11:17 PM which arrives into Seattle Airport (SEA) at 12:03 AM. All services run direct with no transfers required, and take on average 48 min. The schedules shown below are for the next available departures.
Want to know about travelling from Union Station to Seattle Airport (SEA)? 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.
Yes, there is a direct bus departing from Union Station station and arriving at Seattle Airport (SEA) station. Services depart every 30 minutes, and operate Once daily. The journey takes approximately 48 min.
Union Station to Seattle Airport (SEA) bus services, operated by Sound Transit, depart from D St E & 25th St E station.
Union Station to Seattle Airport (SEA) bus services, operated by Sound Transit, arrive at SeaTac Airport Terminal - Bay 2 station.
Book your Union Station to Seattle Airport (SEA) bus tickets online with Sound Transit.
The distance between Union Station and Seattle Airport (SEA) is 24.5 km. The road distance is 38 km.
Sound Transit operates a bus from D St E & 25th St E to SeaTac Airport Terminal - Bay 2 every 30 minutes. Tickets cost $3 and the journey takes 47 min.