Historical on-time performance
Salt Lake City to Houston
1,214 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–HOU arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 409 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time81%Medianon timep9025 minCancel0.5%Flights409
Why flights run late
Delay causes
- Airline36%
- Weather0%
- Air traffic (NAS)21%
- Late aircraft43%
- 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 → HOU
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 — 90% on time.
- Mornings90% on time · p90 10 min · 295 flights
- Middays78% on time · p90 30 min · 548 flights
- Afternoons73% on time · p90 30 min · 332 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 82% on time.
- Saturdays82% on time · p90 20 min · 192 flights · limited
- Tuesdays82% on time · p90 20 min · 157 flights · limited
- Wednesdays80% on time · p90 25 min · 157 flights · limited
- Fridays79% on time · p90 25 min · 156 flights · limited
- Thursdays78% on time · p90 25 min · 156 flights · limited
- Sundays78% on time · p90 30 min · 201 flights
- Mondays76% on time · p90 35 min · 157 flights · limited
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