Historical on-time performance
Detroit to Salt Lake City
1,481 miData through May 2026Source: US DOT · BTS
Flights on DTW–SLC 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 1,540 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time80%Medianon timep9035 minCancel0.2%Flights1,540
Why flights run late
Delay causes
- Airline53%
- Weather4%
- Air traffic (NAS)19%
- Late aircraft24%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline33%
- Weather67%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 3 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 → 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 — 92% on time.
- Mornings92% on time · p90 10 min · 1,337 flights
- Middays88% on time · p90 15 min · 1,098 flights
- Afternoons85% on time · p90 20 min · 130 flights · limited
- Evenings78% on time · p90 35 min · 1,039 flights
- Overnights73% on time · p90 50 min · 1,004 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 86% on time.
- Wednesdays86% on time · p90 20 min · 658 flights
- Tuesdays85% on time · p90 20 min · 648 flights
- Mondays84% on time · p90 25 min · 672 flights
- Saturdays84% on time · p90 25 min · 642 flights
- Sundays83% on time · p90 30 min · 649 flights
- Thursdays83% on time · p90 25 min · 660 flights
- Fridays82% on time · p90 30 min · 679 flights
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