TPA (Tampa) to SEA (Seattle) flights arrive on time 74% of the time. The most reliable airline on this route is Delta Air Lines at 88%. The average delay is 58 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.TPA → SEA
TPA (Tampa) to SEA (Seattle)
TPA → SEA on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Delta Air Lines is significantly more reliable on this route at 88% on time vs Alaska Airlines at 67%.
Airline Comparison
Delta Air Lines leads at 88% on time; Alaska Airlines trails at 67%.
Accurate?
Good to know
Departing from TPA
79% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. TPA has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
TPA cancels 2.1% of flights — higher than average. Have a backup plan.
Arriving at SEA
82% on timeWhen 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.
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.