SEA to BNA flight delays & on-time performance
Nonstop flights from Seattle–Tacoma International Airport to Nashville International Airport · 1,978 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SEA or BNA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Seattle (SEA) to Nashville (BNA) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.9% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (82% on time); Southwest Airlines was the least (65%).
- Departures scheduled around 8am did best (87% on time); around 10pm did worst (55%).
- Wednesday was the most reliable day to fly (84% on time) and Sunday the least (75%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (46%).
Which airline is most on time from SEA to BNA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 82% | 1.0% | 12 min | 7.3% | 512 |
| Alaska Airlines | 79% | 0.9% | 10 min | 4.0% | 843 |
| Southwest Airlines | 65% | 0.0% | 16 min | 5.0% | 121 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am87%94 flights
- 9am85%372 flights
- 10am60%81 flights
- 11am58%31 flights
- 5pm79%614 flights
- 10pm55%62 flights
- 11pm81%205 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.0% cancelled
- Tuesday78%0.0% cancelled
- Wednesday84%1.0% cancelled
- Thursday80%0.9% cancelled
- Friday76%0.9% cancelled
- Saturday81%1.5% cancelled
- Sunday75%1.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)46%
- Late-arriving aircraft32%
- Air traffic control & airport congestion19%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)54%
- Extreme weather46%
- Air traffic control & airport congestion0%
- Security0%
SEA to BNA: common questions
- How often are SEA to BNA flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Seattle to Nashville cancelled?
- 0.9% of scheduled flights were cancelled (13 of 1,476).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 49 min behind schedule on average, and 5.2% of flights were an hour or more late.
- How long is taxi time at SEA?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BNA to SEA — 72% on time
More flights from Seattle
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SEA → BNA, nonstop flights by US airlines that report to the DOT. How we calculate this.