OnTimeRoutes
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Delta Air Lines BNA to BOS on-time performance

Delta Air Lines nonstop flights from Nashville to Boston · Aug 2025 – Jul 2026

On-time arrivals
71%
arrived < 15 min late
Cancelled
1.4%
8 flights
Avg arrival delay
30 min
103 min when late
Rank on route
#4 of 6
route average 69% on time

Key facts

  • Delta Air Lines flights on BNA to BOS arrived on time 71% of the time in Aug 2025 – Jul 2026.
  • 1.4% were cancelled, and 15% arrived an hour or more late.
  • That ranks #4 of 6 airlines on this route, which averaged 69% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (39%).

On-time trend by month

30%65%100%July 2025: 73.7% on time, 0.0% cancelledJul ’25August 2025: 86.1% on time, 0.0% cancelledAug ’25September 2025: 52.3% on time, 0.0% cancelledSep ’25October 2025: 47.3% on time, 0.0% cancelledOct ’25November 2025: 73.1% on time, 1.9% cancelledNov ’25December 2025: 61.8% on time, 2.8% cancelledDec ’25April 2026: 81.5% on time, 0.0% cancelledApr ’26May 2026: 82.5% on time, 1.2% cancelledMay ’26June 2026: 76.9% on time, 1.3% cancelledJun ’26July 2026: 70.1% on time, 4.9% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft39%
  • Airline (crew, maintenance, cleaning, fueling)36%
  • Air traffic control & airport congestion24%
  • Extreme weather1%
  • Security0%

Other airlines on BNA to BOS

Full BNA to BOS comparison →
Delta Air Lines on-time record across all routes →

558 Delta Air Lines flights tracked on this route; 8 cancelled, 3 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.