The average bus between SeaTac and McChord Air Force Base takes 2h 10m and the fastest bus takes 2h. There is a bus service every few hours from SeaTac to McChord Air Force Base. 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 hourly between SeaTac and McChord Air Force Base. The earliest departure is at 4:33 AM at night, and the last departure from SeaTac is at 5:08 PM which arrives into McChord Air Force Base at 7:36 PM. All services require a transfer at Lakewood TC - Zone M and take an average of 2h 10m. The schedules shown below are for the next available departures.

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Want to know about travelling from SeaTac to McChord Air Force Base? 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 bus from SeaTac to McChord Air Force Base. However, there are services departing from SeaTac station and arriving at McChord Air Force Base station via Lakewood TC - Zone M. The journey, including transfers, takes approximately 2h 10m.
SeaTac to McChord Air Force Base bus services, operated by Sound Transit, depart from SeaTac Station.
SeaTac to McChord Air Force Base bus services, operated by Sound Transit, arrive at JBLM Madigan Hospital station.
The distance between SeaTac and McChord Air Force Base is 42.7 km. The road distance is 69 km.
You can take a bus from SeaTac Station to JBLM Madigan Hospital via Lakewood TC - Zone M and Lakewood TC - Zone B in around 2h 23m.