SEA (Seattle) to TPA (Tampa) flights arrive on time 75% of the time. The most reliable airline on this route is Delta Air Lines at 79%. The average delay is 51 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.SEA → TPA
SEA (Seattle) to TPA (Tampa)
SEA → TPA on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 75% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines edges out Alaska Airlines on this route — 79% vs 73% on time.
Airline Comparison
Delta Air Lines leads at 79% on time; Alaska Airlines trails at 73%.
Accurate?
Good to know
Departing from SEA
82% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. SEA has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at TPA
79% on timeWhen flights into TPA are late, the average delay is 70 minutes. Build buffer if you have ground plans.
If connecting at TPA: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
TPA has a 2.1% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.