Route
BWI → BNA
Baltimore/Washington International Thurgood Marshall Airport Nashville International Airport
How punctual is this route?
- On-time arrivals
- 79.3%
- Less than 15 minutes late
- Cancelled
- 1.8%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,789
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 37%
- Airline (crew, maintenance, cleaning) 36%
- Air traffic control & airport 20%
- Extreme weather 6%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 89.2% | 167 |
| October 2025 | 80.2% | 169 |
| November 2025 | 79.7% | 143 |
| December 2025 | 78.3% | 131 |
| January 2026 | 89.1% | 130 |
| February 2026 | 92.1% | 132 |
| March 2026 | 80.3% | 151 |
| April 2026 | 80.1% | 156 |
| May 2026 | 74.4% | 164 |
| June 2026 | 70.3% | 147 |
| July 2026 | 70.4% | 149 |
| August 2026 | 70.1% | 150 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,754 | 79.0% | 1.8% | 61 min |
| NK | 35 | 94.1% | 2.9% | 52 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN879
29% late · 84 flights
-
WN1051
7% late · 58 flights
-
WN2231
7% late · 58 flights
-
WN843
11% late · 58 flights
-
WN874
10% late · 52 flights
-
WN2659
16% late · 50 flights
-
WN3944
32% late · 50 flights
-
WN422
32% late · 50 flights
-
WN2701
5% late · 47 flights
-
WN3535
7% late · 46 flights
-
WN496
10% late · 42 flights
-
WN1086
25% late · 41 flights
-
WN1592
13% late · 40 flights
-
WN3245
34% late · 36 flights
-
NK2581
6% late · 35 flights
-
WN487
15% late · 35 flights
-
WN2652
6% late · 33 flights
-
WN3363
24% late · 33 flights
-
WN686
27% late · 33 flights
-
WN1050
3% late · 32 flights
-
WN1217
3% late · 31 flights
-
WN1251
10% late · 31 flights
-
WN1272
10% late · 31 flights
-
WN1283
39% late · 31 flights
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