The average bus between Seattle and Black Diamond takes 1h 21m and the fastest bus takes 1h 15m. The bus service runs several times per day from Seattle to Black Diamond. 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 4 hours between Seattle and Black Diamond. The earliest departure is at 8:06 AM in the morning, and the last departure from Seattle is at 2:53 PM which arrives into Black Diamond at 4:27 PM. All services require a transfer, and take on average 1h 21m. The schedules shown below are for the next available departures.

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Want to know about travelling from Seattle to Black Diamond? 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 Seattle to Black Diamond. However, there are services departing from Seattle station and arriving at Black Diamond station via Renton Transit Center - Bay 6. The journey, including transfers, takes approximately 1h 21m.
Seattle to Black Diamond bus services, operated by King County Metro, depart from 2nd Ave & Marion St station.
Seattle to Black Diamond bus services, operated by King County Metro, arrive at Baker St & 3rd Ave station.
The distance between Seattle and Black Diamond is 41.3 km. The road distance is 49 km.
You can take a bus from 2nd Ave & Marion St to Baker St & 3rd Ave via Renton Transit Center - Bay 6 in around 2h 13m.