Route
BNA → SEA
Nashville International Airport Seattle–Tacoma International Airport
How punctual is this route?
- On-time arrivals
- 72.4%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,481
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 30%
- Late-arriving aircraft 25%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 74.8% | 135 |
| October 2025 | 77.2% | 117 |
| November 2025 | 76.1% | 88 |
| December 2025 | 55.1% | 90 |
| January 2026 | 68.0% | 81 |
| February 2026 | 84.2% | 76 |
| March 2026 | 71.1% | 91 |
| April 2026 | 83.9% | 118 |
| May 2026 | 79.4% | 142 |
| June 2026 | 69.9% | 177 |
| July 2026 | 63.9% | 185 |
| August 2026 | 70.0% | 181 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Alaska Airlines | 845 | 72.7% | 1.2% | 49 min |
| Delta Air Lines | 516 | 79.8% | 1.2% | 68 min |
| Southwest Airlines | 120 | 38.7% | 0.8% | 52 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL372
17% late · 364 flights
-
AS281
20% late · 225 flights
-
AS383
26% late · 142 flights
-
AS522
34% late · 135 flights
-
AS623
14% late · 83 flights
-
AS469
43% late · 68 flights
-
WN4784
72% late · 51 flights
-
AS230
41% late · 34 flights
-
AS504
29% late · 34 flights
-
AS521
48% late · 33 flights
-
DL1922
12% late · 33 flights
-
DL1710
29% late · 32 flights
-
DL543
28% late · 32 flights
-
DL1705
26% late · 31 flights
-
WN1314
42% late · 31 flights
-
AS411
7% late · 28 flights
-
AS633
25% late · 28 flights
-
DL373
57% late · 24 flights
-
AS524
35% late · 20 flights
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