Helena to Seattle (HLN–SEA) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
HLN–SEA is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 490 miles in approximately 1h 50m. Beyond nonstop, 2 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines | 7 | E75L | 1h50 | – | Oneworld | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Seattle from Helena
| Metric | HLN→SEA | GTF→SEA | BZN→SEA |
|---|---|---|---|
| Distance from HLN | – | 67 mi | 70 mi |
| Nonstop airlines | 1 | 2 | 4 |
| Weekly flights | 7 | 14 | 74 |
| Flight time | 1h 50m | 1h 53m | 1h 57m |
Travel Essentials
HLN: MDT · SEA: MDT
When it's 6:00 PM in Helena, it's 6:00 PM in Seattle.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
HLN–SEA Quick Facts
Frequently Asked Questions
Flights from HLN to SEA
Helena Regional Airport (HLN) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines. With 7 weekly departures, this is a regularly served route.
HLN to SEA Flight Duration and Schedule
Nonstop flight time from HLN to SEA ranges from 1 hours 50 minutes. The route covers a distance of 490 miles (788 km). There are approximately 7 weekly flights outbound and 7 return, totaling 14 flights per week in both directions.
Connecting Options and Alternatives
2 one-stop connections are available, with the fastest taking approximately 12 hours via SLC. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Great Falls (GTF), Bozeman (BZN) and Missoula (MSO).