Historical on-time performance
Detroit to Las Vegas
1,750 miData through Dec 2025Source: US DOT · BTS
Flights on DTW–LAS arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 2,926 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.
- Southwest AirlinesOn-time80%Medianon timep9020 minCancel0.0%Flights213
- Delta Air LinesOn-time78%Medianon timep9040 minCancel0.3%Flights1,926
- Spirit AirlinesOn-time85%Medianon timep9025 minCancel0.1%Flights787
Why flights run late
Delay causes
- Airline51%
- Weather2%
- Air traffic (NAS)30%
- Late aircraft17%
- Security0%
Most delay minutes here are attributed to Airline.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 74% to 85% on time.
- Mornings85% on time · p90 20 min · 2,389 flights
- Middays83% on time · p90 25 min · 1,951 flights
- Overnights75% on time · p90 50 min · 2,255 flights
- Evenings74% on time · p90 50 min · 1,562 flights
- Afternoons74% on time · p90 45 min · 1,393 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 85% on time.
- Tuesdays85% on time · p90 25 min · 1,278 flights
- Wednesdays83% on time · p90 30 min · 1,284 flights
- Saturdays80% on time · p90 30 min · 1,323 flights
- Mondays78% on time · p90 40 min · 1,422 flights
- Sundays77% on time · p90 40 min · 1,437 flights
- Thursdays75% on time · p90 50 min · 1,398 flights
- Fridays74% on time · p90 50 min · 1,408 flights
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