Historical on-time performance
Las Vegas to Salt Lake City
Flights on LAS–SLC arrive on time 82% of the time over the last 12 months.
based on 3,603 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.
- Frontier AirlinesOn-time88%Medianon timep9015 minCancel1.1%Flights449
- Delta Air LinesOn-time85%Medianon timep9020 minCancel0.6%Flights1,711
- Southwest AirlinesOn-time77%Medianon timep9040 minCancel0.5%Flights1,443
Why flights run late
Delay causes
- Airline32%
- Weather0%
- Air traffic (NAS)9%
- Late aircraft59%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline64%
- Weather9%
- Air traffic (NAS)27%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 22 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 LAS → SLC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 94% on time.
- Mornings94% on time · p90 5 min · 3,339 flights
- Middays82% on time · p90 30 min · 3,732 flights
- Evenings74% on time · p90 50 min · 3,160 flights
- Afternoons73% on time · p90 45 min · 1,405 flights
- Overnights67% on time · p90 65 min · 903 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 87% on time.
- Saturdays87% on time · p90 20 min · 1,490 flights
- Tuesdays86% on time · p90 20 min · 1,698 flights
- Wednesdays86% on time · p90 25 min · 1,699 flights
- Mondays80% on time · p90 40 min · 1,928 flights
- Thursdays79% on time · p90 40 min · 1,931 flights
- Fridays77% on time · p90 45 min · 1,951 flights
- Sundays76% on time · p90 40 min · 1,842 flights
Keep exploring