Yakima (YKM) to Seattle (SEA) flights
Horizon Air flies nonstop from Yakima Air Terminal McAllister Field to Seattle-Tacoma International Airport, with about 14 flights a week in July 2026. The 103-mile flight takes about 52m gate to gate.
- Distance
- 103 mi · 166 km
- Flight time
- 52m
- Airlines
- 1
- Seats filled
- 78%
Airlines flying YKM to SEA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Horizon Air | 14 | Embraer E175 | 42,293 | 52m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
YKM to SEA flight schedule
3 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 6:15am and the last at 1:52pm. 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 2040Alaska Airlines · operated by Horizon Air | 6:15am | 7:12am | 13 | 93% |
| AS 2347Alaska Airlines · operated by Horizon Air | 6:15am | 7:04am | 18 | 90% |
| AS 2000Alaska Airlines · operated by Horizon Air | 1:52pm | 2:41pm | 31 | 60% |
Is YKM to SEA on time?
From September 2025 to August 2026, 86% of 727 flights arrived within 15 minutes of schedule and 1.7% were cancelled. Flights leaving around 6am were the most punctual (92%), those around 1pm the least (67%). Most delay time was caused by late-arriving aircraft (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 727 | 86% | 8 min | 1.7% |
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 | 354 | 92% | |
| 1pm to 2pm | 91 | 67% | |
| 2pm to 3pm | 55 | 82% | |
| 3pm to 4pm | 86 | 81% | |
| 4pm to 5pm | 90 | 89% | |
| 5pm to 6pm | 16 | 86% | |
| 6pm to 7pm | 25 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 3,425 | |
| September 2025 | 62 | 3,852 | |
| October 2025 | 59 | 3,771 | |
| November 2025 | 58 | 3,375 | |
| December 2025 | 63 | 4,224 | |
| January 2026 | 57 | 3,523 | |
| February 2026 | 54 | 3,127 | |
| March 2026 | 64 | 3,993 | |
| April 2026 | 60 | 3,416 | |
| May 2026 | 62 | 3,603 | |
| June 2026 | 60 | 3,495 | |
| July 2026 | 62 | 3,434 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.