Hey is one hour between flights enough time. Just wondering how big Seattle air port is.

Yes should be sufficient. Depends if you are not taking check-in bags

Seatac has two satellite terminals serviced by an underground train. N and S gates are north and south satellites respectively. Other letters are the central terminal.

You should have enough time in between gates if needed. SeaTac has a tram which goes to any gate. Tram is quick. N Gates has all the good food places.

Yes