OnTimeStats

Historical on-time performance

Washington to Key West

1,023 miData through Dec 2025Source: US DOT · BTS

Flights on DCA–EYW arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled2.1%of scheduled flights

based on 339 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.

  • Republic Airways
    On-time78%
    Medianon time
    p9035 min
    Cancel2.5%
    Flights157
  • Envoy Air
    On-time69%
    Medianon time
    p9045 min
    Cancel1.6%
    Flights182

Why flights run late

Delay causes

  • Airline16%
  • Weather3%
  • Air traffic (NAS)43%
  • Late aircraft38%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DCA → EYW

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 — 85% on time.

  • Mornings85% on time · p90 15 min · 1,092 flights
  • Middays73% on time · p90 50 min · 457 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 86% on time.

  • Wednesdays86% on time · p90 15 min · 217 flights
  • Sundays83% on time · p90 20 min · 228 flights
  • Tuesdays83% on time · p90 25 min · 216 flights
  • Mondays82% on time · p90 20 min · 217 flights
  • Saturdays79% on time · p90 30 min · 243 flights
  • Thursdays79% on time · p90 35 min · 212 flights
  • Fridays79% on time · p90 30 min · 216 flights
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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.