Historical on-time performance
Detroit to Las Vegas
1,749 miData through May 2026Source: US DOT · BTS
Flights on DTW–LAS arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 2,769 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesbestOn-time82%Medianon timep9035 minCancel0.7%Flights595
- Delta Air LinesOn-time76%Medianon timep9045 minCancel0.5%Flights1,930
- Southwest AirlinesOn-time72%Medianon timep9035 minCancel0.0%Flights244
Why flights run late
Delay causes
- Airline51%
- Weather4%
- Air traffic (NAS)25%
- Late aircraft20%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline64%
- Weather36%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 14 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 DTW → LAS
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 — 85% on time.
- Mornings85% on time · p90 20 min · 2,252 flights
- Middays82% on time · p90 30 min · 2,072 flights
- Evenings75% on time · p90 50 min · 1,523 flights
- Afternoons74% on time · p90 45 min · 1,376 flights
- Overnights74% on time · p90 50 min · 2,139 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 84% on time.
- Tuesdays84% on time · p90 25 min · 1,244 flights
- Wednesdays83% on time · p90 30 min · 1,248 flights
- Saturdays80% on time · p90 30 min · 1,307 flights
- Mondays77% on time · p90 45 min · 1,386 flights
- Thursdays77% on time · p90 50 min · 1,375 flights
- Sundays77% on time · p90 45 min · 1,413 flights
- Fridays74% on time · p90 50 min · 1,389 flights
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