EYW to IAD flight delays & on-time performance
Nonstop flights from Key West International Airport to Washington Dulles International Airport · 1,024 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at EYW or IAD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Key West (EYW) to Washington (IAD) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.9% were cancelled, and 8% arrived an hour or more late.
- Departures scheduled around 6pm did best (76% on time); around 1pm did worst (68%).
- Tuesday was the most reliable day to fly (93% on time) and Friday the least (53%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (60%).
Which airline is most on time from EYW to IAD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 76% | 1.0% | 23 min | 6.7% | 105 |
| United Airlines | 56% | 0.0% | 31 min | 22.2% | 9 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 1pm68%19 flights
- 5pm72%18 flights
- 6pm76%77 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday69%5.9% cancelled
- Tuesday93%0.0% cancelled
- Wednesday93%0.0% cancelled
- Thursday81%0.0% cancelled
- Friday53%0.0% cancelled
- Saturday59%0.0% cancelled
- Sunday76%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)60%
- Late-arriving aircraft25%
- Air traffic control & airport congestion15%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
EYW to IAD: common questions
- How often are EYW to IAD flights on time?
- 74% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Key West to Washington cancelled?
- 0.9% of scheduled flights were cancelled (1 of 114).
- How long are typical delays?
- Across all flights the average arrival delay was 23 min (early arrivals count as zero). Flights that were late arrived 87 min behind schedule on average, and 8.0% of flights were an hour or more late.
- How long is taxi time at EYW?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAD to EYW — 68% on time
More flights from Key West
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: EYW → IAD, nonstop flights by US airlines that report to the DOT. How we calculate this.