Historical on-time performance
Salt Lake City to Helena
Flights on SLC–HLN arrive on time 97% of the time over the last 12 months.
based on 725 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time97%Medianon timep90on timeCancel0.3%Flights725
Why flights run late
Delay causes
- Airline77%
- Weather18%
- Air traffic (NAS)5%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather0%
- Air traffic (NAS)100%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 2 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → HLN
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 94% to 96% on time.
- Overnights96% on time · p90 on time · 1,094 flights
- Middays94% on time · p90 5 min · 1,082 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 94% to 96% on time.
- Sundays96% on time · p90 on time · 313 flights
- Fridays96% on time · p90 on time · 316 flights
- Mondays95% on time · p90 on time · 311 flights
- Tuesdays95% on time · p90 on time · 312 flights
- Thursdays95% on time · p90 on time · 311 flights
- Saturdays94% on time · p90 5 min · 317 flights
- Wednesdays94% on time · p90 on time · 310 flights
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