Distance: SEA to HLN
Seattle–Tacoma International Airport ↔ Helena Regional Airport
Kilometers
788
km
Miles
490
mi
Nautical Miles
425
nm
Route Map
Distance & Flight Information
- Great-Circle Distance
- 788 km
- Distance (Miles)
- 490 mi
- Distance (Nautical Miles)
- 425 nm
- Estimated Flight Time
- ~1h 33m
- Initial Bearing
- 93.0° (E)