Route · IAD → BNA · 2020–2025 BTS data
Washington to Nashville
The IAD–BNA corridor (Washington, DC → Nashville, TN) runs ahead of the national average, served by 21 carriers across roughly 542 miles.
Data updated 2026-06-13
- 82.3%
- On-time
- +3.3 pts
- vs US avg
- 86 min
- Delay when late
- 5,707
- Flights
Cancelled
0.4%
Best Month
Feb 2024 94%
Worst Month
May 2025 67%
Distance
542 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 71 | 18 | 0 | 1 | YX,UA |
| Nov 2025 | 88 | 17 | 0 | 0 | UA,WN |
| Oct 2025 | 93 | 16 | 0 | 0 | UA |
| Sep 2025 | 79 | 7 | 0 | 0 | UA |
| Aug 2025 | 100 | 16 | 0 | 0 | G4,UA |
| Jul 2025 | 101 | 19 | 1 | 2 | UA,G4 |
| Jun 2025 | 119 | 32 | 0 | 0 | UA,G4 |
| May 2025 | 105 | 35 | 0 | 1 | UA,G4 |
| Apr 2025 | 81 | 23 | 0 | 1 | UA,YX |
| Mar 2025 | 64 | 10 | 0 | 0 | UA |
| Feb 2025 | 56 | 9 | 0 | 0 | UA |
| Jan 2025 | 58 | 12 | 2 | 0 | YX,UA |
| Dec 2024 | 63 | 11 | 0 | 0 | UA |
| Nov 2024 | 89 | 11 | 0 | 0 | UA |
| Oct 2024 | 93 | 11 | 0 | 0 | UA |
| Sep 2024 | 90 | 10 | 0 | 0 | UA |
| Aug 2024 | 89 | 13 | 0 | 0 | G4,UA |
| Jul 2024 | 91 | 17 | 1 | 2 | G4,UA |
| Jun 2024 | 89 | 15 | 0 | 0 | G4,UA |
| May 2024 | 102 | 21 | 0 | 0 | G4,UA |
| Apr 2024 | 98 | 9 | 0 | 0 | G4,UA |
| Mar 2024 | 72 | 14 | 0 | 0 | G4,UA |
| Feb 2024 | 67 | 4 | 0 | 0 | G4,UA |
| Jan 2024 | 69 | 12 | 4 | 0 | G4,UA |
Cancellation Rate
0.4%
8 of 2,027 flights
Diversion Rate
0.3%
7 of 2,027 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Origin airport →BNA - Nashville
Full on-time, delay-cause, and seasonal performance for Nashville, TN.
Destination airport →Compare the two airports
See IAD and BNA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAD–BNA.
Routes with a similar on-time rate
What the Data Says About IAD to BNA
Bureau of Transportation Statistics records show Washington to Nashville (IAD to BNA) running a 82.3% on-time rate over 5,707 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 85.7 minutes. The 542-mile corridor is served by 21 carriers, and over the last 24 months 0.4% of 2,027 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while May 2025 came in at just 67% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.