OnTimeRoutes
B

Delta Air Lines BNA to SEA on-time performance

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

On-time arrivals
81%
arrived < 15 min late
Cancelled
1.2%
6 flights
Avg arrival delay
13 min
64 min when late
Rank on route
#1 of 3
route average 72% on time

Key facts

  • Delta Air Lines flights on BNA to SEA arrived on time 81% of the time in Aug 2025 – Jul 2026.
  • 1.2% were cancelled, and 5% arrived an hour or more late.
  • That ranks #1 of 3 airlines on this route, which averaged 72% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (54%).

On-time trend by month

60%80%100%July 2025: 90.2% on time, 0.0% cancelledJul ’25August 2025: 84.5% on time, 0.0% cancelledAug ’25September 2025: 93.8% on time, 0.0% cancelledSep ’25October 2025: 80.6% on time, 0.0% cancelledOct ’25November 2025: 75.9% on time, 0.0% cancelledNov ’25December 2025: 74.2% on time, 0.0% cancelledDec ’25January 2026: 82.8% on time, 6.5% cancelledJan ’26February 2026: 85.7% on time, 0.0% cancelledFeb ’26March 2026: 74.2% on time, 0.0% cancelledMar ’26April 2026: 89.7% on time, 0.0% cancelledApr ’26May 2026: 77.0% on time, 0.0% cancelledMay ’26June 2026: 84.5% on time, 3.3% cancelledJun ’26July 2026: 71.7% on time, 3.2% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)54%
  • Air traffic control & airport congestion24%
  • Late-arriving aircraft18%
  • Extreme weather4%
  • Security0%

Other airlines on BNA to SEA

512 Delta Air Lines flights tracked on this route; 6 cancelled, 0 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.