OnTimeStats

Historical on-time performance

Houston to Pensacola

489 miData through May 2026Source: US DOT · BTS

Flights on IAH–PNS arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 456 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • United Airlines
    On-time74%
    Medianon time
    p9060 min
    Cancel1.5%
    Flights396
  • SkyWest Airlines
    On-time63%
    Medianon time
    p9075 min
    Cancel0.0%
    Flights60

Why flights run late

Delay causes

  • Airline48%
  • Weather1%
  • Air traffic (NAS)4%
  • Late aircraft47%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline17%
  • Weather83%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 6 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 IAH → PNS

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 67% to 71% on time.

  • Afternoons71% on time · p90 85 min · 306 flights
  • Evenings69% on time · p90 60 min · 436 flights
  • Overnights67% on time · p90 65 min · 703 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 64% to 73% on time.

  • Mondays73% on time · p90 90 min · 211 flights
  • Wednesdays72% on time · p90 70 min · 222 flights
  • Tuesdays72% on time · p90 60 min · 211 flights
  • Saturdays67% on time · p90 60 min · 221 flights
  • Thursdays66% on time · p90 85 min · 214 flights
  • Fridays66% on time · p90 75 min · 215 flights
  • Sundays64% on time · p90 80 min · 206 flights

Keep exploring

Related pages

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.