Seattle (SEA) to Nashville (BNA) flights
Alaska Airlines, Delta Air Lines, Southwest Airlines fly nonstop from Seattle-Tacoma International Airport to Nashville International Airport, with about 42 flights a week in July 2026. The 1,978-mile flight takes about 4h 18m gate to gate.
- Distance
- 1,978 mi · 3,183 km
- Flight time
- 4h 18m
- Airlines
- 3
- Seats filled
- 81%
Airlines flying SEA to BNA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 21 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 120,340 | 4h 19m |
| Delta Air Lines | 14 | Boeing 737-800, Airbus A220-300, Boeing 757-300 | 57,885 | 4h 17m |
| Southwest Airlines | 7 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 19,264 | 4h 17m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to BNA flight schedule
8 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 9:15am and the last at 11:15pm. 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 1345Alaska Airlines | 9:15am | 3:40pm | 18 | 78% |
| DL 1710Delta Air Lines | 9:27am | 3:53pm | 31 | 86% |
| AS 522Alaska Airlines | 9:33am | 4:04pm | 13 | 84% |
| AS 504Alaska Airlines | 5:28pm | 11:52pm | 13 | 92% |
| DL 815Delta Air Lines | 5:30pm | 11:55pm | 31 | 80% |
| AS 416Alaska Airlines | 5:31pm | 11:59pm | 17 | 81% |
| WN 2614Southwest Airlines | 11:00pm | 5:25am | 28 | 57% |
| AS 382Alaska Airlines | 11:15pm | 5:40am | 26 | 82% |
Is SEA to BNA on time?
From September 2025 to August 2026, 81% of 1,481 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 8am were the most punctual (87%), those around 11pm the least (81%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 845 | 82% | 9 min | 0.9% |
| Delta Air Lines | 516 | 83% | 11 min | 1% |
| Southwest Airlines | 120 | 60% | 18 min | 0% |
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 |
|---|---|---|---|
| 8am to 9am | 93 | 87% | |
| 9am to 10am | 380 | 85% | |
| 10am to 11am | 47 | 72% | |
| 11am to 12pm | 31 | 58% | |
| 5pm to 6pm | 618 | 81% | |
| 10pm to 11pm | 61 | 54% | |
| 11pm to 12am | 235 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 175 | 24,542 | |
| September 2025 | 134 | 19,200 | |
| October 2025 | 115 | 15,506 | |
| November 2025 | 89 | 11,214 | |
| December 2025 | 90 | 12,025 | |
| January 2026 | 76 | 9,576 | |
| February 2026 | 76 | 9,431 | |
| March 2026 | 91 | 12,206 | |
| April 2026 | 119 | 15,356 | |
| May 2026 | 141 | 17,385 | |
| June 2026 | 178 | 24,677 | |
| July 2026 | 187 | 26,550 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.