Historical on-time performance
Lewiston to Salt Lake City
461 miData through May 2026Source: US DOT · BTS
Flights on LWS–SLC arrive on time 94% of the time over the last 12 months.
On-time rate94%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time94%Medianon timep905 minCancel0.0%Flights337
Why flights run late
Delay causes
- Airline85%
- Weather13%
- Air traffic (NAS)2%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline20%
- Weather80%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 5 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 LWS → SLC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 88% to 96% on time.
- Mondays96% on time · p90 5 min · 156 flights · limited
- Thursdays94% on time · p90 5 min · 157 flights · limited
- Saturdays93% on time · p90 10 min · 157 flights · limited
- Wednesdays92% on time · p90 10 min · 156 flights · limited
- Fridays90% on time · p90 15 min · 157 flights · limited
- Tuesdays90% on time · p90 15 min · 156 flights · limited
- Sundays88% on time · p90 20 min · 157 flights · limited
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