BNA to SEA flight delays & on-time performance
Nonstop flights from Nashville International Airport to Seattle–Tacoma International Airport · 1,978 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BNA or SEA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Nashville (BNA) to Seattle (SEA) arrived on time 72% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.2% were cancelled, and 6% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (81% on time); Southwest Airlines was the least (41%).
- Departures scheduled around 9am did best (87% on time); around 7pm did worst (49%).
- Wednesday was the most reliable day to fly (79% on time) and Thursday the least (66%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
Which airline is most on time from BNA to SEA?
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 | 81% | 1.2% | 13 min | 4.9% | 512 |
| Alaska Airlines | 70% | 1.3% | 15 min | 6.0% | 843 |
| Southwest Airlines | 41% | 0.8% | 30 min | 15.8% | 121 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am79%703 flights
- 8am86%23 flights
- 9am87%144 flights
- 3pm56%72 flights
- 4pm79%137 flights
- 5pm53%119 flights
- 6pm55%195 flights
- 7pm49%56 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%0.9% cancelled
- Tuesday74%0.5% cancelled
- Wednesday79%1.0% cancelled
- Thursday66%0.5% cancelled
- Friday67%2.2% cancelled
- Saturday74%0.5% cancelled
- Sunday70%2.8% 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)37%
- Late-arriving aircraft30%
- Air traffic control & airport congestion28%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)56%
- Extreme weather44%
- Air traffic control & airport congestion0%
- Security0%
BNA to SEA: common questions
- How often are BNA to SEA flights on time?
- 72% 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 Nashville to Seattle cancelled?
- 1.2% of scheduled flights were cancelled (18 of 1,476).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 51 min behind schedule on average, and 6.5% of flights were an hour or more late.
- How long is taxi time at BNA?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SEA to BNA — 79% on time
More flights from Nashville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BNA → SEA, nonstop flights by US airlines that report to the DOT. How we calculate this.