Historical on-time performance
Billings to Salt Lake City
Flights on BIL–SLC arrive on time 91% of the time over the last 12 months.
based on 1,046 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time93%Medianon timep90on timeCancel0.3%Flights338
- SkyWest AirlinesOn-time90%Medianon timep9010 minCancel0.7%Flights708
Why flights run late
Delay causes
- Airline74%
- Weather10%
- Air traffic (NAS)8%
- Late aircraft8%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline17%
- Weather33%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 6 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 BIL → SLC
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 87% to 93% on time.
- Middays93% on time · p90 5 min · 1,092 flights
- Mornings91% on time · p90 5 min · 1,096 flights
- Evenings87% on time · p90 20 min · 959 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 89% to 92% on time.
- Saturdays92% on time · p90 5 min · 397 flights
- Mondays92% on time · p90 10 min · 461 flights
- Tuesdays91% on time · p90 5 min · 458 flights
- Fridays90% on time · p90 10 min · 463 flights
- Thursdays90% on time · p90 15 min · 460 flights
- Sundays90% on time · p90 10 min · 454 flights
- Wednesdays89% on time · p90 15 min · 458 flights
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