Historical on-time performance
Harlingen to Houston
276 miData through May 2026Source: US DOT · BTS
Flights on HRL–HOU arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,224 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time80%Medianon timep9030 minCancel0.3%Flights1,224
Why flights run late
Delay causes
- Airline21%
- Weather2%
- Air traffic (NAS)29%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 4 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly HRL → HOU
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 5 min · 1,258 flights
- Middays85% on time · p90 20 min · 939 flights
- Afternoons74% on time · p90 40 min · 723 flights
- Overnights72% on time · p90 30 min · 261 flights
- Evenings70% on time · p90 40 min · 737 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 79% to 84% on time.
- Mondays84% on time · p90 20 min · 599 flights
- Thursdays82% on time · p90 25 min · 599 flights
- Wednesdays82% on time · p90 25 min · 587 flights
- Sundays82% on time · p90 30 min · 537 flights
- Tuesdays82% on time · p90 25 min · 591 flights
- Fridays81% on time · p90 25 min · 605 flights
- Saturdays79% on time · p90 35 min · 400 flights
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