Flights Helena → Seattle
HLN → SEA
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Helena (HLN) → Seattle (SEA) route is operated by Alaska Airlines. Across 89 flights monitored in recent months, 93% arrived on time (within 15 min of schedule), with an average delay of -2 minutes. The cancellation rate is 2.25%. FlightGuard's average computed risk is 6.2/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Seattle the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Helena the average ATFM delay is 2.8 minutes.
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Alaska Airlines (AS) | 83% | 1 min | 1.1% |
Airlines operating HLN-SEA
Airports
Frequently asked questions about HLN-SEA
On the Helena (HLN) -> Seattle (SEA) route, on-time performance is 93% with an average delay of -2 minutes, based on 89 tracked flights.
The cancellation rate on Helena-Seattle is 2.25% across 89 monitored flights.
The route is operated by 1 airline: Alaska Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Seattle, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
