Tampa (TPA) to Seattle (SEA) flights
Alaska Airlines, Delta Air Lines fly nonstop from Tampa International Airport to Seattle-Tacoma International Airport, with about 21 flights a week in July 2026. The 2,520-mile flight takes about 6h 9m gate to gate.
- Distance
- 2,520 mi · 4,056 km
- Flight time
- 6h 9m
- Airlines
- 2
- Seats filled
- 88%
Airlines flying TPA to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Alaska Airlines | 14 | Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737-800 | 94,188 | 6h 11m |
| Delta Air Lines | 7 | Airbus A321, Boeing 737-800, Boeing 737-900ER | 58,885 | 6h 6m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
TPA to SEA flight schedule
3 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 7:08am and the last at 6:54pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 640Alaska Airlines | 7:08am | 10:13am | 31 | 73% |
| DL 1090Delta Air Lines | 7:16am | 10:05am | 31 | 84% |
| AS 326Alaska Airlines | 6:54pm | 9:59pm | 26 | 61% |
Is TPA to SEA on time?
From September 2025 to August 2026, 74% of 975 flights arrived within 15 minutes of schedule and 0.9% were cancelled. Flights leaving around 8am were the most punctual (87%), those around 6pm the least (59%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 612 | 68% | 18 min | 1% |
| Delta Air Lines | 363 | 84% | 8 min | 0.8% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 487 | 77% | |
| 8am to 9am | 170 | 87% | |
| 5pm to 6pm | 35 | 77% | |
| 6pm to 7pm | 210 | 59% | |
| 7pm to 8pm | 57 | 71% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 87 | 14,189 | |
| September 2025 | 77 | 11,946 | |
| October 2025 | 61 | 9,572 | |
| November 2025 | 67 | 10,192 | |
| December 2025 | 86 | 13,445 | |
| January 2026 | 66 | 9,446 | |
| February 2026 | 73 | 10,661 | |
| March 2026 | 86 | 13,839 | |
| April 2026 | 87 | 13,811 | |
| May 2026 | 92 | 15,232 | |
| June 2026 | 90 | 15,156 | |
| July 2026 | 91 | 15,584 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.