BNA to IAD flight delays & on-time performance
Nonstop flights from Nashville International Airport to Washington Dulles International Airport · 542 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BNA or IAD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Nashville (BNA) to Washington (IAD) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.2% were cancelled, and 8% arrived an hour or more late.
- Departures scheduled around 8am did best (87% on time); around 6pm did worst (70%).
- Wednesday was the most reliable day to fly (84% on time) and Monday the least (72%).
- The largest source of delay minutes was late-arriving aircraft (40%).
Which airline is most on time from BNA 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 |
|---|---|---|---|---|---|
| Southwest Airlines | 100% | 0.0% | 0 min | 0.0% | 1 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 84% | 0.0% | 13 min | 8.1% | 37 |
| Allegiant Air | 81% | 2.6% | 22 min | 13.5% | 38 |
| United Airlines | 79% | 1.2% | 20 min | 8.2% | 932 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am87%314 flights
- 11am78%24 flights
- 1pm80%360 flights
- 6pm70%299 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%1.4% cancelled
- Tuesday82%1.7% cancelled
- Wednesday84%0.0% cancelled
- Thursday80%0.6% cancelled
- Friday79%1.3% cancelled
- Saturday81%0.8% cancelled
- Sunday75%2.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft40%
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion12%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)58%
- Extreme weather42%
- Air traffic control & airport congestion0%
- Security0%
BNA to IAD: common questions
- How often are BNA to IAD flights on time?
- 79% 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 Nashville to Washington cancelled?
- 1.2% of scheduled flights were cancelled (12 of 1,008).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 88 min behind schedule on average, and 8.3% of flights were an hour or more late.
- How long is taxi time at BNA?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAD to BNA — 82% on time
More flights from Nashville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BNA → IAD, nonstop flights by US airlines that report to the DOT. How we calculate this.