Historical on-time performance
Salt Lake City to Dallas
999 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–DAL arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 668 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time77%Medianon timep9040 minCancel0.6%Flights668
Why flights run late
Delay causes
- Airline19%
- Weather2%
- Air traffic (NAS)23%
- Late aircraft55%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → DAL
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 — 92% on time.
- Mornings92% on time · p90 10 min · 942 flights
- Middays76% on time · p90 40 min · 136 flights · limited
- Afternoons66% on time · p90 50 min · 783 flights
- Evenings52% on time · p90 75 min · 191 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.
- Tuesdays82% on time · p90 25 min · 291 flights
- Wednesdays78% on time · p90 35 min · 288 flights
- Mondays78% on time · p90 35 min · 298 flights
- Saturdays78% on time · p90 35 min · 272 flights
- Sundays75% on time · p90 35 min · 313 flights
- Thursdays75% on time · p90 40 min · 292 flights
- Fridays74% on time · p90 40 min · 298 flights
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