Historical on-time performance
Detroit to Salt Lake City
1,481 miData through Dec 2025Source: US DOT · BTS
Flights on DTW–SLC arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.1%of scheduled flights
based on 1,515 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time83%Medianon timep9025 minCancel0.1%Flights1,515
Why flights run late
Delay causes
- Airline52%
- Weather3%
- Air traffic (NAS)17%
- Late aircraft28%
- 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 → SLC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 10 min · 1,336 flights
- Middays88% on time · p90 15 min · 1,097 flights
- Afternoons83% on time · p90 25 min · 219 flights
- Evenings78% on time · p90 40 min · 1,057 flights
- Overnights75% on time · p90 45 min · 881 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 87% on time.
- Tuesdays87% on time · p90 20 min · 648 flights
- Wednesdays85% on time · p90 20 min · 658 flights
- Thursdays85% on time · p90 20 min · 651 flights
- Mondays85% on time · p90 25 min · 673 flights
- Saturdays84% on time · p90 20 min · 636 flights
- Sundays83% on time · p90 30 min · 648 flights
- Fridays82% on time · p90 30 min · 676 flights
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