ON TIMEBOARD
BNA Nashville / BUF Buffalo

BNA → BUF on time

Nashville (Nashville, TN) to Buffalo Niagara (Buffalo, NY). Every scheduled flight, September 2025 to August 2026.

On time
72%
arrived < 15 min late
Cancelled
0.8%
371 flights
Typical arrival
0 min
median vs schedule
When late
+48 min
average delay
Flights / day
1
1 airline

72% of flights from Nashville to Buffalo arrived on time over the past 12 months. That is worse than the typical U.S. route. 6% 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 → BUF: when a flight was late, it was under 45 minutes late 71% of the time. About 1 in 20 flights landed an hour or more late, and 1 in 186 three hours or more; 0.8% were cancelled outright.

Share of all 371 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Southwest Airlines37172%0.8%0 min5.1%+48 minSouthwest Airlines

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%10 a.m. departures: too few flights (55 flights)10a11 a.m. departures: too few flights (81 flights)11anoon departures: too few flights (47 flights)12p1 p.m. departures: too few flights (59 flights)1p2 p.m. departures: too few flights (59 flights)2p3 p.m. departures: too few flights (48 flights)3p
BNA → BUF, 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 month

Each calendar month pooled over 2023–2026.

40%70%100%Jan: too few flights (41 flights)JanFeb: too few flights (45 flights)FebMar: too few flights (60 flights)MarApr: too few flights (82 flights)AprMay: too few flights (92 flights)MayJun: too few flights (90 flights)JunJul: too few flights (93 flights)JulAug: too few flights (94 flights)AugSep: too few flights (60 flights)SepOct: too few flights (62 flights)OctNov: too few flights (51 flights)NovDec: too few flights (49 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday54——
Tuesday52——
Wednesday52——
Thursday52——
Friday52——
Saturday57——
Sunday52——

Why flights were late

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

Late inbound plane 50%Airline (crew, maintenance, ops) 42%Air traffic & airport (NAS) 7%Severe weather 1%

Cancellations: weather 3

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from BNA to BUF on time?

72% of 371 scheduled flights from Nashville, TN to Buffalo, NY arrived within 15 minutes of schedule between September 2025 and August 2026. 0.8% were cancelled.

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.