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

The most reliable airline on the BNA to SEA route is Delta Air Lines, with an on-time arrival rate of 86%.

How often are flights delayed from BNA to SEA?

About 22% of flights from BNA to SEA experience delays. 78% arrive on time.

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

When flights from BNA to SEA are delayed, the average delay is approximately 52 minutes.

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

With 78% of BNA to SEA flights arriving on time and an average delay of 52 minutes when late, a connection under 60 minutes at SEA is risky. We recommend at least 75-90 minutes for domestic connections after this route.

BNA → SEA

BNA (Nashville) to SEA (Seattle)

BNA (Nashville) to SEA (Seattle) flights arrive on time 78% of the time. The most reliable airline on this route is Delta Air Lines at 86%. The average delay is 52 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated August 2026.

BNA → SEA on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 78% 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 86% on time vs Southwest Airlines at 57%.

Airline Comparison

Delta Air Lines leads at 86% on time; Southwest Airlines trails at 57%.

Accurate?

Good to know

Departing from BNA

79% on time

Expect ~16 min sitting on the taxiway after your gate pushes back. BNA has long runway queues.

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

More about BNA →

Arriving at SEA

80% on time

When flights into SEA are late, the average delay is 57 minutes. Build buffer if you have ground plans.

If connecting at SEA: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.

More about SEA →Connection times at SEA →

Flight cancelled or delayed?

Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.

Flying out of BNA? We'll brief you.

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

BNA Airport SEA Airport

Check the return: SEA → BNA

Flying this route?

Enter your flight number for a personalized delay briefing.

Check your flight

Know someone flying soon?

Send them the link — delay data, TSA waits, weather, all free.

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