SEA to TPA flight delays & on-time performance
Nonstop flights from Seattle–Tacoma International Airport to Tampa International Airport · 2,520 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SEA or TPA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Seattle (SEA) to Tampa (TPA) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 5% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (81% on time); Delta Air Lines was the least (78%).
- Departures scheduled around 8am did best (95% on time); around 10pm did worst (65%).
- Saturday was the most reliable day to fly (83% on time) and Sunday the least (76%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (49%).
Which airline is most on time from SEA to TPA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Alaska Airlines | 81% | 0.5% | 10 min | 3.5% | 612 |
| Delta Air Lines | 78% | 0.6% | 14 min | 6.4% | 363 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am95%63 flights
- 9am78%266 flights
- 10am94%36 flights
- 11am76%306 flights
- 12pm88%56 flights
- 9pm80%179 flights
- 10pm65%40 flights
- 11pm93%29 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%0.0% cancelled
- Tuesday82%0.7% cancelled
- Wednesday80%0.0% cancelled
- Thursday80%0.0% cancelled
- Friday80%1.4% cancelled
- Saturday83%0.8% cancelled
- Sunday76%0.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)49%
- Air traffic control & airport congestion23%
- Late-arriving aircraft21%
- Extreme weather8%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)80%
- Extreme weather20%
- Air traffic control & airport congestion0%
- Security0%
SEA to TPA: common questions
- How often are SEA to TPA flights on time?
- 80% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Seattle to Tampa cancelled?
- 0.5% of scheduled flights were cancelled (5 of 975).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 50 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at SEA?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TPA to SEA — 75% on time
More flights from Seattle
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SEA → TPA, nonstop flights by US airlines that report to the DOT. How we calculate this.