Helena Regional Airport
Helena, United StatesHLN / KHLN
Regional airport · 2 direct destinations · 3 runways · longest runway 8,999 ft
44 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Helena → Seattle
HLN
HelenaHelena Regional Airport
HelenaHelena Regional AirportSEASeattleSeattle–Tacoma International Airport
SeattleSeattle–Tacoma International Airport- Distance
- 490 mi
- Estimated flight time
- ~1h 30m
Seattle is currently 1 hour behind Helena.
No nonstop connection observed
Our route data contains no observed nonstop flight from Helena to Seattle. That does not rule out a one-stop journey; see the direct destinations of Helena for the options.
About this route
- Domestic route: both airports are in the same country.
- Direct destinations observed from Helena: 2.
- Direct destinations observed from Seattle: 132.
The airports on this route
Seattle–Tacoma International Airport
Seattle, United StatesSEA / KSEA
International hub · 132 direct destinations · 3 runways · longest runway 11,900 ft
64 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Helena to Seattle
The distance between Helena Regional Airport (HLN) and Seattle–Tacoma International Airport (SEA) is approximately 490 mi; no direct connection has been observed in our route data.
Frequently asked questions about this route
- How far is Helena from Seattle by air?
- The great-circle distance between Helena Regional Airport and Seattle–Tacoma International Airport is approximately 490 mi.
- Is there a direct connection from Helena to Seattle?
- No direct connection between HLN and SEA has been observed in our route data. That does not rule out a one-stop journey.
- What is the current time difference between Helena and Seattle?
- Seattle is currently 1 hour behind Helena.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The flight archive of the last twelve months has nothing for this route, so we say nothing about frequency.
Route data updated on October 11, 2026.