424 miles taking this route:

1. Take HIGHWAY 4 (RICHARDSON HWY) from Valdez to HIGHWAY 4. TURN LEFT onto HIGHWAY 1 WEST to ANCHORAGE.
2. Take HIGHWAY 1 WEST to HIGHWAY 9 to SEWARD. TURN LEFT onto HIGHWAY 9 to SEWARD. HIGHWAY 9 is well past Anchorage.
3. Take HIGHWAY 9 to Seward.

483 miles taking this route:

1. Take AK-3 SOUTH (George Parks Hwy), from Fairbanks, to AK-1 WEST (Glenn Hwy) to ANCHORAGE.
2. Take AK-1 WEST (Glenn Hwy to Anchorage) and SOUTH (on Seward Hwy past Anchorage), to AK-9 SOUTH (Seward Hwy) to SEWARD.
3. Take AK-9 SOUTH (Seward Hwy) to Seward