Route
SEA → HLN
Seattle–Tacoma International Airport Helena Regional Airport
491 miles
Return route HLN → SEA →
How punctual is this route?
- On-time arrivals
- 60.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 26 min
- Flights arriving 15+ minutes late
- Flights tracked
- 10
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 44%
- Air traffic control & airport 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nov 2025
Dec 2025
Show as table
| Month | On time | Flights |
|---|---|---|
| November 2025 | 66.7% | 9 |
| December 2025 | 0.0% | 1 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 10 | 60.0% | 0.0% | 26 min |
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