Seattle (SEA) to Tulsa (TUL) flights
Horizon Air flies nonstop from Seattle-Tacoma International Airport to Tulsa International Airport, with about 7 flights a week in July 2026. The 1,558-mile flight takes about 3h 39m gate to gate.
- Distance
- 1,558 mi · 2,507 km
- Flight time
- 3h 39m
- Airlines
- 1
- Seats filled
- 84%
Airlines flying SEA to TUL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 7 | Embraer E175 | 8,654 | 3h 39m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to TUL flight schedule
2 flight numbers flew this route in August 2026. The first usually leaves at 11:35am and the last at 11:52am. 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 2400Alaska Airlines · operated by Horizon Air | 11:35am | 5:22pm | 13 | 69% |
| AS 2217Alaska Airlines · operated by Horizon Air | 11:52am | 5:32pm | 18 | 63% |
Is SEA to TUL on time?
From September 2025 to August 2026, 75% of 167 flights arrived within 15 minutes of schedule and 0% were cancelled. Flights leaving around 10am were the most punctual (94%), those around 11am the least (66%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (40%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 167 | 75% | 13 min | 0% |
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 |
|---|---|---|---|
| 8am to 9am | 21 | 91% | |
| 10am to 11am | 35 | 94% | |
| 11am to 12pm | 111 | 66% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 1 | 179 | |
| March 2026 | 15 | 1,029 | |
| April 2026 | 30 | 1,630 | |
| May 2026 | 36 | 2,728 | |
| June 2026 | 32 | 2,392 | |
| July 2026 | 32 | 2,359 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.