I'm with Finkface. For January 2022 travel, I would not even look at this until November. The route may not even be operational.and there will almost certainly be multiple changes.
I am surprised that this is bookable as the MCT for D-I at SEA is 1:10. In any event, there is no way I would book such a connection to a flight which operates 1x/daily at best, for which there is no great reroute, and where any reroute might involve lousy seats for a very long flight.