Seattle (SEA) to Yakima (YKM) flights
Horizon Air flies nonstop from Seattle-Tacoma International Airport to Yakima Air Terminal McAllister Field, with about 14 flights a week in July 2026. The 103-mile flight takes about 46m gate to gate.
- Distance
- 103 mi · 166 km
- Flight time
- 46m
- Airlines
- 1
- Seats filled
- 74%
Airlines flying SEA to YKM
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 14 | Embraer E175 | 40,336 | 46m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to YKM flight schedule
3 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 12:20pm and the last at 11:09pm. 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 2001Alaska Airlines · operated by Horizon Air | 12:20pm | 1:15pm | 31 | 81% |
| AS 2172Alaska Airlines · operated by Horizon Air | 11:03pm | 11:55pm | 13 | 94% |
| AS 2346Alaska Airlines · operated by Horizon Air | 11:09pm | 11:59pm | 17 | 75% |
Is SEA to YKM on time?
From September 2025 to August 2026, 87% of 727 flights arrived within 15 minutes of schedule and 1.8% were cancelled. Flights leaving around 11pm were the most punctual (90%), those around 12pm the least (81%). Most delay time was caused by late-arriving aircraft (63%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 727 | 87% | 6 min | 1.8% |
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 |
|---|---|---|---|
| 12pm to 1pm | 146 | 81% | |
| 1pm to 2pm | 86 | 85% | |
| 2pm to 3pm | 69 | 84% | |
| 3pm to 4pm | 37 | 89% | |
| 4pm to 5pm | 26 | 92% | |
| 10pm to 11pm | 34 | 91% | |
| 11pm to 12am | 329 | 90% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 3,488 | |
| September 2025 | 60 | 3,360 | |
| October 2025 | 60 | 3,409 | |
| November 2025 | 58 | 3,154 | |
| December 2025 | 60 | 3,527 | |
| January 2026 | 56 | 3,113 | |
| February 2026 | 55 | 3,127 | |
| March 2026 | 61 | 3,596 | |
| April 2026 | 60 | 3,292 | |
| May 2026 | 62 | 3,664 | |
| June 2026 | 60 | 3,380 | |
| July 2026 | 61 | 3,226 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.