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1,476 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 3 in 4.

Best time to leave 8–9 am 87% arrive on time from SEA
Best single flight DL 1710 SEA 09:30 → BNA 16:02 · 83% on time Avoid AS 382 SEA 23:15 → BNA 05:40 · 78% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
SEA
89
87
67
77
52
76
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55
Nashville flights leaving SEA 11 pm–12 am: 1Close ×
AS 382 SEA 23:15 BNA 05:40 4h 25m 319 78% 1.3% 42 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 512 83% 1.0% 64 min
Alaska 843 80% 0.9% 45 min
Southwest 121 – 0.0% 42 min

Dimmed: fewer than 150 flights in the year, too few to rank.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
DL 1710 SEA 09:30 BNA 16:02 83%
AS 522 SEA 10:05 BNA 16:43 82%
DL 815 SEA 17:30 BNA 23:59 82%
AS 382 SEA 23:15 BNA 05:40 78%
All 10 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
Delta SEA BNA 4h 29m 83% 1.0% 512 Flying now
Alaska SEA BNA 4h 28m 80% 0.9% 843 Flying now
Southwest SEA BNA 4h 15m 68% 0.0% 121 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON