Historical on-time performance
Tampa to Seattle
2,520 miData through Dec 2025Source: US DOT · BTS
Flights on TPA–SEA arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 955 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 minCancel0.7%Flights306
- Alaska AirlinesOn-time67%Medianon timep9045 minCancel0.6%Flights649
Why flights run late
Delay causes
- Airline36%
- Weather4%
- Air traffic (NAS)31%
- Late aircraft27%
- Security1%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly TPA → SEA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 84% on time.
- Middays84% on time · p90 50 min · 56 flights · limited
- Mornings79% on time · p90 30 min · 1,732 flights
- Evenings64% on time · p90 55 min · 1,315 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 76% on time.
- Wednesdays76% on time · p90 35 min · 437 flights
- Tuesdays75% on time · p90 30 min · 420 flights
- Saturdays73% on time · p90 45 min · 435 flights
- Thursdays72% on time · p90 40 min · 447 flights
- Mondays71% on time · p90 40 min · 455 flights
- Fridays71% on time · p90 45 min · 452 flights
- Sundays69% on time · p90 55 min · 457 flights
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