Historical on-time performance
Nashville to Seattle
1,977 miData through May 2026Source: US DOT · BTS
Flights on BNA–SEA arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 1,417 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time83%Medianon timep9025 minCancel0.4%Flights447
- Alaska AirlinesOn-time69%Medianon timep9045 minCancel1.4%Flights843
- Southwest AirlinesOn-time54%Median5 minp9060 minCancel0.0%Flights127
Why flights run late
Delay causes
- Airline34%
- Weather4%
- Air traffic (NAS)27%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline43%
- Weather57%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 14 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BNA → SEA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 84% on time.
- Mornings84% on time · p90 20 min · 2,715 flights
- Afternoons71% on time · p90 40 min · 248 flights
- Evenings67% on time · p90 50 min · 1,028 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.
- Wednesdays85% on time · p90 20 min · 562 flights
- Saturdays83% on time · p90 25 min · 576 flights
- Tuesdays81% on time · p90 25 min · 566 flights
- Mondays77% on time · p90 30 min · 588 flights
- Fridays75% on time · p90 35 min · 590 flights
- Sundays75% on time · p90 35 min · 564 flights
- Thursdays75% on time · p90 40 min · 578 flights
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