OnTimeStats

Historical on-time performance

Huntsville to Washington

613 miData through May 2026Source: US DOT · BTS

Flights on HSV–DCA arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled4.5%of scheduled flights

based on 1,254 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.

  • Republic Airways
    On-time79%
    Medianon time
    p9015 min
    Cancel1.9%
    Flights52
  • PSA Airlines
    On-time66%
    Medianon time
    p9085 min
    Cancel4.4%
    Flights1,029
  • Envoy Air
    On-time66%
    Medianon time
    p9050 min
    Cancel6.4%
    Flights173

Why flights run late

Delay causes

  • Airline26%
  • Weather13%
  • Air traffic (NAS)13%
  • Late aircraft47%
  • Security1%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline2%
  • Weather72%
  • Air traffic (NAS)26%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 57 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 HSV → DCA

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 53% to 79% on time.

  • Mornings79% on time · p90 40 min · 1,036 flights
  • Afternoons74% on time · p90 55 min · 453 flights
  • Middays70% on time · p90 65 min · 1,718 flights
  • Evenings53% on time · p90 105 min · 877 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 65% to 72% on time.

  • Saturdays72% on time · p90 70 min · 316 flights
  • Tuesdays72% on time · p90 60 min · 645 flights
  • Wednesdays71% on time · p90 65 min · 638 flights
  • Thursdays69% on time · p90 55 min · 632 flights
  • Mondays68% on time · p90 70 min · 646 flights
  • Sundays68% on time · p90 70 min · 570 flights
  • Fridays65% on time · p90 90 min · 637 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.