Alaska Interstate System

Interstate A1 following Alaska State Route 1 east from Anchorage Interstate A1 Anchorage, AK ↔ International Border – Alcan Border, AK Alaska Route 3 north at Interstate A2 and SR 2 in Fairbanks Interstate A2 Tok, AK ↔ Fairbanks, AK The south end of Interstate A3 in Soldotna, Alaska Interstate A3 Soldotna, AK ↔ Anchorage, AK Interstate A4 south along Alaska State Route 3 at Fairbanks Interstate A4 Gateway – Palmer, AK ↔ Fairbanks, AK