Tucson (TUS) to Seattle (SEA) flights
SkyWest Airlines, Alaska Airlines fly nonstop from Tucson International Airport to Seattle-Tacoma International Airport, with about 21 flights a week in July 2026. The 1,215-mile flight takes about 3h 19m gate to gate.
- Distance
- 1,215 mi · 1,955 km
- Flight time
- 3h 19m
- Airlines
- 2
- Seats filled
- 82%
Airlines flying TUS to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 14 | Embraer E175 | 24,572 | 3h 25m |
| Alaska Airlines | 7 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 76,756 | 3h 16m |
| Delta Air LinesSeasonal or ended | n/a | Airbus A220-100, Airbus A220-300 | 12,776 | 3h 16m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
TUS to SEA flight schedule
4 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 7:00am and the last at 2:29pm. 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 3159Alaska Airlines · operated by SkyWest Airlines | 7:00am | 10:36am | 13 | 85% |
| AS 3361Alaska Airlines · operated by SkyWest Airlines | 7:10am | 10:37am | 18 | 91% |
| DL 3679Delta Air Lines · operated by SkyWest Airlines | 11:54am | 3:25pm | 31 | 88% |
| AS 641Alaska Airlines | 2:29pm | 5:44pm | 31 | 79% |
Is TUS to SEA on time?
From September 2025 to August 2026, 86% of 1,065 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 12pm were the most punctual (96%), those around 4pm the least (72%). Most delay time was caused by late-arriving aircraft (48%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 700 | 85% | 10 min | 0.7% |
| Delta Air Lines | 365 | 87% | 11 min | 0.5% |
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 |
|---|---|---|---|
| 6am to 7am | 126 | 93% | |
| 7am to 8am | 187 | 91% | |
| 8am to 9am | 28 | 75% | |
| 11am to 12pm | 117 | 88% | |
| 12pm to 1pm | 54 | 96% | |
| 1pm to 2pm | 150 | 91% | |
| 2pm to 3pm | 194 | 79% | |
| 3pm to 4pm | 78 | 79% | |
| 4pm to 5pm | 108 | 72% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 93 | 8,645 | |
| September 2025 | 90 | 7,734 | |
| October 2025 | 81 | 8,134 | |
| November 2025 | 88 | 9,460 | |
| December 2025 | 86 | 10,238 | |
| January 2026 | 90 | 9,168 | |
| February 2026 | 80 | 10,110 | |
| March 2026 | 86 | 11,357 | |
| April 2026 | 90 | 11,845 | |
| May 2026 | 93 | 10,059 | |
| June 2026 | 90 | 8,576 | |
| July 2026 | 94 | 8,786 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.