Nashville (BNA) to Seattle (SEA) flights
Alaska Airlines, Delta Air Lines, Southwest Airlines fly nonstop from Nashville International Airport to Seattle-Tacoma International Airport, with about 42 flights a week in July 2026. The 1,978-mile flight takes about 5h 3m gate to gate.
- Distance
- 1,978 mi · 3,183 km
- Flight time
- 5h 3m
- Airlines
- 3
- Seats filled
- 85%
Airlines flying BNA to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 21 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 124,925 | 5h 4m |
| Delta Air Lines | 14 | Boeing 737-800, Airbus A220-300, Airbus A220-100 | 59,850 | 5h 3m |
| Southwest Airlines | 7 | Boeing 737 MAX 8, Boeing 737-800 | 19,063 | 4h 51m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BNA to SEA flight schedule
10 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 7:02am and the last at 6:29pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 281Alaska Airlines | 7:02am | 10:04am | 31 | 80% |
| DL 372Delta Air Lines | 7:11am | 10:05am | 31 | 83% |
| AS 623Alaska Airlines | 9:25am | 12:26pm | 31 | 86% |
| WN 393Southwest Airlines | 11:00am | 1:55pm | 12 | 17% |
| WN 2623Southwest Airlines | 1:45pm | 4:40pm | 4 | n/a |
| WN 4467Southwest Airlines | 2:05pm | 5:00pm | 4 | n/a |
| DL 543Delta Air Lines | 5:20pm | 8:19pm | 31 | 72% |
| WN 4737Southwest Airlines | 5:30pm | 8:25pm | 8 | n/a |
| AS 469Alaska Airlines | 6:03pm | 9:07pm | 17 | 57% |
| AS 1377Alaska Airlines | 6:29pm | 9:30pm | 8 | n/a |
Is BNA to SEA on time?
From September 2025 to August 2026, 72% of 1,481 flights arrived within 15 minutes of schedule and 1.1% were cancelled. Flights leaving around 9am were the most punctual (89%), those around 6pm the least (58%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 845 | 73% | 13 min | 1.2% |
| Delta Air Lines | 516 | 80% | 14 min | 1.2% |
| Southwest Airlines | 120 | 39% | 32 min | 0.8% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 710 | 79% | |
| 9am to 10am | 144 | 89% | |
| 3pm to 4pm | 73 | 56% | |
| 4pm to 5pm | 133 | 80% | |
| 5pm to 6pm | 112 | 59% | |
| 6pm to 7pm | 189 | 58% | |
| 7pm to 8pm | 56 | 49% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 174 | 23,781 | |
| September 2025 | 135 | 18,771 | |
| October 2025 | 114 | 15,916 | |
| November 2025 | 89 | 12,142 | |
| December 2025 | 89 | 13,096 | |
| January 2026 | 75 | 9,929 | |
| February 2026 | 76 | 10,224 | |
| March 2026 | 90 | 13,152 | |
| April 2026 | 118 | 15,125 | |
| May 2026 | 141 | 19,668 | |
| June 2026 | 174 | 24,903 | |
| July 2026 | 184 | 27,131 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.