ON TIMEBOARD

BNA → PIT on time

Nashville (Nashville, TN) to Pittsburgh (Pittsburgh, PA). Every scheduled flight, September 2025 to August 2026.

On time
71%
arrived < 15 min late
Cancelled
0.5%
1,103 flights
Typical arrival
+1 min
median vs schedule
When late
+49 min
average delay
Flights / day
3
2 airlines

71% of flights from Nashville to Pittsburgh arrived on time over the past 12 months. That is worse than the typical U.S. route. The 9 a.m. departures ran on time 90% of the time; the 7 p.m. ones 64%. 7% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for BNA → PIT: when a flight was late, it was under 45 minutes late 66% of the time. About 1 in 15 flights landed an hour or more late, and 1 in 138 three hours or more; 0.5% were cancelled outright.

Share of all 1,103 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Southwest Airlines1,01971%0.5%+1 min6.9%+47 minSouthwest Airlines
Allegiant Air84—————Allegiant Air

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at BNA). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%9 a.m. departures: 90% on time (186 flights)909a10 a.m. departures: 78% on time (171 flights)7810a11 a.m. departures: too few flights (16 flights)11anoon departures: too few flights12p1 p.m. departures: too few flights (10 flights)1p2 p.m. departures: too few flights (63 flights)2p3 p.m. departures: 66% on time (140 flights)663p4 p.m. departures: too few flights (98 flights)4p5 p.m. departures: too few flights (34 flights)5p6 p.m. departures: 71% on time (120 flights)716p7 p.m. departures: 64% on time (107 flights)647p8 p.m. departures: 66% on time (128 flights)668p9 p.m. departures: too few flights (30 flights)9p
BNA → PIT, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By airline and hour

DepartsSouthwest Airlines
9 a.m.90%
10 a.m.78%
3 p.m.66%
6 p.m.71%
7 p.m.64%

Last flight of the day

On BNA → PIT, each airline's last flight of the day was cancelled 0.8% of the time, against 0.3% for its earlier flights (2.6× as often). It arrived 3+ hours late 0.0% of the time (earlier flights: 0.8%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
Southwest Airlines7:45 p.m.0.8%0.0%0.3%first flight 10:05 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in PIT tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: September (88%). Worst: June (64%).

40%70%100%Jan: 81% on time (201 flights)81JanFeb: 86% on time (194 flights)86FebMar: 77% on time (249 flights)77MarApr: 81% on time (259 flights)81AprMay: 69% on time (265 flights)69MayJun: 64% on time (274 flights)64JunJul: 66% on time (279 flights)66JulAug: 75% on time (290 flights)75AugSep: 88% on time (260 flights)88SepOct: 80% on time (271 flights)80OctNov: 86% on time (243 flights)86NovDec: 78% on time (246 flights)78Dec

By day of week

DayFlightsOn timeCancelled
Monday15666%0.0%
Tuesday15179%0.0%
Wednesday14773%0.0%
Thursday19172%0.0%
Friday15370%0.0%
Saturday11170%0.9%
Sunday19470%2.6%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 65%Airline (crew, maintenance, ops) 23%Air traffic & airport (NAS) 8%Severe weather 3%

Cancellations: weather 5 · air traffic/airport 1

Month by month

Not enough months with data to draw a trend.

Worst days in the past year

DateFlightsOn timeCancelled
Jun 14, 202640%0
Jul 28, 202630%0
Feb 27, 202630%0
Jul 17, 202630%0
Aug 10, 202630%0

Questions

How often are flights from BNA to PIT on time?

71% of 1,103 scheduled flights from Nashville, TN to Pittsburgh, PA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.5% were cancelled.

What is the best time of day to fly BNA to PIT?

Flights scheduled to leave at 9 a.m. were the most reliable (90% on time). The 7 p.m. departures were the least (64%).

What month has the most delays from BNA to PIT?

June (64% on time). The best month is September (88%), over 2023–2026.

Is the last flight of the day from BNA to PIT more likely to be cancelled?

Yes. Each airline's last BNA–PIT flight of the day was cancelled 0.8% of the time over the past year, against 0.3% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.