Historical on-time performance
Houston to Mcallen
316 miData through Dec 2025Source: US DOT · BTS
Flights on IAH–MFE arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 558 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- United AirlinesOn-time81%Medianon timep9040 minCancel1.1%Flights359
- SkyWest AirlinesOn-time81%Medianon timep9050 minCancel1.5%Flights199
Why flights run late
Delay causes
- Airline41%
- Weather1%
- Air traffic (NAS)12%
- Late aircraft46%
- 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 IAH → MFE
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 75% to 84% on time.
- Middays84% on time · p90 45 min · 246 flights
- Afternoons83% on time · p90 50 min · 252 flights
- Mornings81% on time · p90 45 min · 177 flights · limited
- Overnights75% on time · p90 60 min · 949 flights
- Evenings75% on time · p90 45 min · 600 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.
- Wednesdays82% on time · p90 25 min · 331 flights
- Saturdays79% on time · p90 35 min · 278 flights
- Tuesdays78% on time · p90 50 min · 318 flights
- Thursdays77% on time · p90 50 min · 326 flights
- Mondays76% on time · p90 65 min · 332 flights
- Fridays75% on time · p90 60 min · 330 flights
- Sundays73% on time · p90 55 min · 309 flights
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