Which airline is most reliable for SEA (Seattle) to BNA (Nashville)?

The most reliable airline on the SEA to BNA route is Delta Air Lines, with an on-time arrival rate of 83%.

How often are flights delayed from SEA to BNA?

About 21% of flights from SEA to BNA experience delays. 79% arrive on time.

What's the average delay on SEA to BNA flights?

When flights from SEA to BNA are delayed, the average delay is approximately 45 minutes.

Is a short connection safe after a SEA to BNA flight?

With 79% of SEA to BNA flights arriving on time and an average delay of 45 minutes when late, a connection under 60 minutes at BNA is risky. We recommend at least 75-90 minutes for domestic connections after this route.

SEA → BNA

SEA (Seattle) to BNA (Nashville)

SEA (Seattle) to BNA (Nashville) flights arrive on time 79% of the time. The most reliable airline on this route is Delta Air Lines at 83%. The average delay is 45 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated October 2026.

SEA → BNA on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 79% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Delta Air Lines is significantly more reliable on this route at 83% on time vs Southwest Airlines at 65%.

Airline Comparison

Delta Air Lines leads at 83% on time; Southwest Airlines trails at 65%.

Accurate?

Good to know

Departing from SEA

81% on time

Expect ~20 min sitting on the taxiway after your gate pushes back. SEA has long runway queues.

TSA is currently ~27 min. Best time: 4 AM (about 5 min).

More about SEA →

Arriving at BNA

79% on time

When flights into BNA are late, the average delay is 65 minutes. Build buffer if you have ground plans.

If connecting at BNA: TSA is ~27 min right now. Allow at least 60 minutes for a domestic connection.

More about BNA →Connection times at BNA →

Flight cancelled or delayed?

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Delays, TSA, weather, gates — we'll let you know if something matters.

SEA Airport BNA Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.