Route Reliability
Seattle → Tampa
SEA–TPA · 2,520 miles · Seattle–Tacoma International Airport to Tampa International Airport
78
Usually Fine
WanderNerd Reliability Score
- 77%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 0.6%
- Cancelled
- 976
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines77%613 flights
- 2.Delta Air Lines76%363 flights
What the data says
Morning-you made the right choice.
SEA–TPA flights departing between 6–9 AM arrived on time 94% of the time, versus 72% between 9 PM–12 AM.
Saturday has been the better bet.
A small edge: 81% on time on Saturdays against 74% on Tuesdays.
Not much between Alaska Airlines and Delta Air Lines.
On this route they all land within 76% to 77% on time. Pick on schedule and price.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
The breakdown
- Mon75%(141 flights)
- Tue74%(133 flights)
- Wed76%(131 flights)
- Thu79%(141 flights)
- Fri78%(139 flights)
- Sat81%(132 flights)
- Sun75%(141 flights)
- 6–9 AM94%(53 flights)
- 9 AM–12 PM77%(608 flights)
- 12–3 PM88%(49 flights)
- 9 PM–12 AM72%(248 flights)
84%
May
Jun 56% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 56% | 87 |
| July 2025 | 57% | 91 |
| August 2025 | 67% | 87 |
| September 2025 | 87% | 76 |
| October 2025 | 75% | 60 |
| November 2025 | 83% | 66 |
| December 2025 | 77% | 84 |
| January 2026 | 85% | 67 |
| February 2026 | 92% | 73 |
| March 2026 | 79% | 89 |
| April 2026 | 89% | 87 |
| May 2026 | 84% | 91 |
Keep nerding
Based on 976 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.