JAX to IAD flight delays & on-time performance
Nonstop flights from Jacksonville International Airport to Washington Dulles International Airport · 631 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at JAX or IAD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Jacksonville (JAX) to Washington (IAD) arrived on time 89% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 4% arrived an hour or more late.
- Republic Airways was the most punctual airline here (97% on time); Allegiant Air was the least (54%).
- Departures scheduled around 1pm did best (93% on time); around 6pm did worst (75%).
- Tuesday was the most reliable day to fly (95% on time) and Friday the least (81%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (48%).
Which airline is most on time from JAX 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. | 97% | 1.1% | 7 min | 2.2% | 90 |
| United Airlines | 91% | 1.0% | 8 min | 3.9% | 626 |
| Allegiant Air | 54% | 0.0% | 24 min | 9.8% | 61 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am93%343 flights
- 11am89%73 flights
- 12pm90%107 flights
- 1pm93%163 flights
- 3pm38%16 flights
- 4pm48%21 flights
- 6pm75%24 flights
- 7pm89%19 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%1.5% cancelled
- Tuesday95%0.0% cancelled
- Wednesday91%0.0% cancelled
- Thursday93%0.0% cancelled
- Friday81%0.0% cancelled
- Saturday95%0.0% cancelled
- Sunday89%4.9% 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)48%
- Late-arriving aircraft27%
- Air traffic control & airport congestion23%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather43%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion29%
- Security0%
JAX to IAD: common questions
- How often are JAX to IAD flights on time?
- 89% 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 Jacksonville to Washington cancelled?
- 0.9% of scheduled flights were cancelled (7 of 777).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 75 min behind schedule on average, and 4.2% of flights were an hour or more late.
- How long is taxi time at JAX?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAD to JAX — 84% on time
More flights from Jacksonville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: JAX → IAD, nonstop flights by US airlines that report to the DOT. How we calculate this.