Historical on-time performance
Memphis to Salt Lake City
1,262 miData through Dec 2025Source: US DOT · BTS
Flights on MEM–SLC arrive on time 88% of the time over the last 12 months.
On-time rate88%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time88%Medianon timep9015 minCancel0.3%Flights337
Why flights run late
Delay causes
- Airline90%
- Weather0%
- Air traffic (NAS)7%
- Late aircraft3%
- Security1%
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 MEM → 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 — 91% on time.
- Mornings91% on time · p90 5 min · 1,004 flights
- Evenings67% on time · p90 70 min · 92 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 85% to 92% on time.
- Thursdays92% on time · p90 10 min · 156 flights · limited
- Saturdays92% on time · p90 5 min · 156 flights · limited
- Tuesdays91% on time · p90 5 min · 157 flights · limited
- Sundays90% on time · p90 5 min · 158 flights · limited
- Wednesdays89% on time · p90 15 min · 157 flights · limited
- Mondays87% on time · p90 20 min · 157 flights · limited
- Fridays85% on time · p90 30 min · 156 flights · limited
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