Washington (IAD) to Key West (EYW): On-Time Performance
Data through May 2026
Washington (IAD) to Key West (EYW) is a thinner route than most in this dataset — 114 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 69% arrived on time, noticeably below the national average of 78%.
- On-time
- 69%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 0.31
- last 12 months
- Duration
- 3h 17m
- scheduled
- Distance
- 1,024 mi
Monthly on-time trend
Best time to fly from IAD to EYW
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 64% | 10 min |
| Tuesdaybest | 95% | 1 min |
| Wednesday | 71% | 20 min |
| Thursday | 52% | 17 min |
| Friday | 67% | 22 min |
| Saturday | 63% | 16 min |
| Sunday | 74% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft10%
- Airline operations17%
- National airspace system73%
- Weather1%
Frequently asked questions
- How often are flights from IAD to EYW delayed?
- 31% of IAD–EYW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 15 minutes.
- How long is the flight from IAD to EYW?
- The scheduled IAD–EYW flight time averages 3h 17m over 1,024 miles. Actual arrival times vary — flights on this route land 15+ minutes late 31% of the time.
- How often are IAD to EYW flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
Explore related pages
More routes from IAD
Based on 159 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.