First leg of the flight was late leaving because the plane was stuck in another airport, too much traffic. At one point it was late enough that I wasn't going to make the connection in SEA. It did arrive earlier than planned so I got to SEA early enough to catch the connection. Unfortunately I had to go to the S terminal from the B terminal which required downstairs walk, A Tram and then walk upstairs. Had my first leg been 10 minutes later I wouldn't have made the connection. The layover time is too short for these types of flights I take from Medford to Sacramento.