Airport month record
BNAAUG
Nashville International in August 2025
- Departures
- 9,012
- Month
- August 2025
- National, same month
- 77.4%
- Carriers
- 13
Historical statistics for August 2025, not live status or a forecast for this year’s August. For today’s conditions at BNA, see live FAA status.
BNA in August lands a B+, 3 points better than the national rate of 77.4%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 9,012 flights, of which Delta Air Lines flew 850 at 90.9% on time.
Delta Air Lines is the most reliable of the five carriers covered here at 90.9% on time across 850 flights.
Key figures
On time
80.8%
Arrivals under 15 minutes late, of 8,910 completed departures
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
0.81%
Nationally in August: 1.08%
Whole year
76.2%
BNA across all twelve months
These figures cover 9,012 departures from Nashville International in August 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
August next to BNA's other months
Against BNA's own year, August ran 5 points better than the twelve-month rate of 76.2%, which makes it number four of twelve months, best first. Cancellations were unusually low for BNA in August, at 0.81% against 1.50% across the year. Either side of it, July ran 69.6% on time and September 85.2%, so a trip moved by a few weeks would have landed in a worse stretch.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 | 9,459 | 69.6% | 80 min | 2.09% | C |
| August 2025 (this page) | 9,012 | 80.8% | 63 min | 0.81% | B+ |
| September 2025 | 8,686 | 85.2% | 62 min | 0.24% | A+ |
| October 2025 | 9,841 | 75.4% | 59 min | 0.42% | B+ |
| November 2025 | 8,849 | 79.0% | 68 min | 1.22% | B |
| December 2025 | 8,776 | 74.9% | 64 min | 0.99% | C+ |
| January 2026 | 7,853 | 84.3% | 66 min | 7.07% | B− |
| February 2026 | 7,542 | 81.0% | 56 min | 1.62% | B |
| March 2026 | 9,623 | 75.1% | 71 min | 2.31% | B |
| April 2026 | 9,617 | 77.7% | 58 min | 0.60% | B+ |
| May 2026 | 9,814 | 70.6% | 57 min | 0.57% | C+ |
| June 2026 | 9,725 | 65.5% | 61 min | 0.98% | C+ |
Departure window
The best time of day to leave BNA in August
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against 19 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,745 flights91.6%
- 8am–11am1,512 flights90.9%
- 11am–2pm1,606 flights84.6%
- 2pm–5pm1,694 flights74.1%
- 5pm–8pm1,798 flights68.6%
- 8pm–5am657 flights69.4%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 91.6% of the time, against 68.6% for the evening window. That is 23 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 1,798 flights scheduled in it.
Across the week, Tuesday is the strongest day at 88.8% on time and Sunday the weakest at 76.5%. 12 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at BNA in August
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 90.9% of the time; American Airlines manages 72.0%. Sample sizes sit next to every figure, because a two-point gap across 812 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 4,901 | 80.5% | 46 min | 0.41% | B+ |
| Delta Air Lines | 850 | 90.9% | 64 min | 0.71% | A+ |
| American Airlines | 812 | 72.0% | 90 min | 2.22% | C |
| United Airlines | 552 | 83.6% | 83 min | 1.09% | B |
| Republic Airways | 495 | 81.8% | 71 min | 1.21% | B |
| SkyWest Airlinesthin sample | 287 | 78.3% | 137 min | 1.74% | B |
| Spirit Airlinesthin sample | 280 | 79.0% | 94 min | 0.71% | B+ |
| Allegiant Airthin sample | 256 | 84.3% | 86 min | 0.00% | B+ |
| JetBlue Airwaysthin sample | 134 | 80.6% | 54 min | 0.00% | B+ |
| Envoy Airthin sample | 127 | 78.9% | 82 min | 2.36% | B |
| Alaska Airlinesthin sample | 117 | 65.2% | 52 min | 1.71% | C |
| PSA Airlinesthin sample | 111 | 86.1% | 44 min | 2.70% | A |
| Frontier Airlinesthin sample | 90 | 75.0% | 69 min | 2.22% | B |
The spread between Delta and American is 19 points, wide enough that it should decide the booking. On a hundred trips that is 19 more arrivals inside the on-time window.
Route by route
Busiest routes out of BNA in August
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| BNA to ORD · Chicago | 413 | 73.9% | 117 min | 2.66% | C |
| BNA to ATL · Atlanta | 365 | 88.6% | 53 min | 1.10% | A |
| BNA to DCA · Washingtonthin sample | 345 | 83.4% | 58 min | 1.74% | B |
| BNA to DEN · Denverthin sample | 329 | 75.3% | 60 min | 0.91% | B+ |
| BNA to LGA · New Yorkthin sample | 296 | 81.5% | 57 min | 1.35% | B |
| BNA to DFW · Dallas-Fort Worththin sample | 296 | 69.5% | 79 min | 4.73% | C− |
| BNA to CLT · Charlottethin sample | 280 | 82.3% | 53 min | 1.07% | B |
| BNA to BOS · Bostonthin sample | 266 | 78.9% | 43 min | 0.38% | B+ |
| BNA to MCO · Orlandothin sample | 266 | 74.1% | 57 min | 0.75% | C+ |
| BNA to PHL · Philadelphiathin sample | 247 | 74.9% | 104 min | 0.00% | C+ |
| BNA to AUS · Austinthin sample | 234 | 79.9% | 74 min | 0.00% | B+ |
| BNA to DTW · Detroitthin sample | 211 | 91.4% | 38 min | 0.95% | A+ |
| BNA to TPA · Tampathin sample | 203 | 81.4% | 60 min | 0.99% | B+ |
| BNA to DAL · Dallasthin sample | 198 | 81.5% | 69 min | 1.01% | B |
| BNA to MIA · Miamithin sample | 189 | 73.1% | 72 min | 0.53% | C+ |
| BNA to LAX · Los Angelesthin sample | 188 | 81.8% | 64 min | 0.53% | B+ |
| BNA to SEA · Seattlethin sample | 176 | 63.8% | 51 min | 1.14% | D |
| BNA to PHX · Phoenixthin sample | 176 | 86.9% | 42 min | 0.00% | A+ |
| BNA to BWI · Baltimorethin sample | 173 | 79.9% | 41 min | 2.31% | B |
| BNA to MDW · Chicagothin sample | 168 | 76.2% | 66 min | 1.19% | B |
| BNA to LAS · Las Vegasthin sample | 167 | 84.4% | 41 min | 0.00% | B+ |
| BNA to EWR · Newarkthin sample | 164 | 75.0% | 103 min | 1.83% | B |
| BNA to RDU · Raleighthin sample | 162 | 78.8% | 67 min | 0.62% | B+ |
| BNA to FLL · Fort Lauderdalethin sample | 157 | 72.4% | 55 min | 0.00% | C+ |
| BNA to MSP · Minneapolisthin sample | 149 | 89.9% | 100 min | 0.00% | A+ |
Delay causes
What held BNA up in August
One category carries most of the weight here. Late-arriving aircraft accounts for 43% of the 107,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 43%Late-arriving aircraft
- 33%Carrier
- 21%National Airspace System
- 3%Extreme weather
- 0%Security
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 107,000 reported delay minutes here, that single category outweighs weather by 13 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 107,405 reported delay minutes.
Cancellations are rare at 0.81%, below the national 1.08% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
5.5% of arrivals land an hour or more late, close to the national 8.2%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
What to do with this
Flying from BNA in August
For a August trip through BNA: expect 80.8% on time and 0.81% cancelled, going by August 2025. The 5am–8am window was the strongest part of the day.
Related
Where to go next
- Nashville International (BNA), the whole year
- BNA in July69.6%
- BNA in September85.2%
- BNA in October75.4%
- BNA in November79.0%
- BNA in December74.9%
- BNA in January84.3%
- BNA in February81.0%
- BNA in March75.1%
- BNA in April77.7%
- BNA in May70.6%
- BNA in June65.5%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.