Historical on-time performance
Salt Lake City to Memphis
1,262 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–MEM arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay30 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-time86%Medianon timep9030 minCancel0.3%Flights337
Why flights run late
Delay causes
- Airline74%
- Weather6%
- Air traffic (NAS)6%
- Late aircraft13%
- 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 SLC → MEM
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 83% to 85% on time.
- Middays85% on time · p90 35 min · 253 flights
- Afternoons83% on time · p90 25 min · 830 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 89% on time.
- Tuesdays89% on time · p90 15 min · 157 flights · limited
- Saturdays87% on time · p90 25 min · 157 flights · limited
- Mondays85% on time · p90 25 min · 157 flights · limited
- Thursdays84% on time · p90 30 min · 156 flights · limited
- Wednesdays83% on time · p90 25 min · 157 flights · limited
- Fridays79% on time · p90 45 min · 156 flights · limited
- Sundays78% on time · p90 40 min · 157 flights · limited
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