Seattle (SEA) to Yakima (YKM)
Flight time
≈ 1h 00m
Bearing
125° SE
Seattle (SEA) to Yakima (YKM) is 103 miles (166 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SEA–YKM
Filed traffic dataIn July 2026, Horizon Air was the only carrier flying nonstop SEA–YKM; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 71% full.
Departures
123
July 2026
Seats
9,348
both directions
Passengers
6,660
both directions
Load factor
71.3%
RPM ÷ ASM
Who flies SEA–YKM?
Horizon Air was the only carrier to fly nonstop SEA–YKM in July 2026 (123 departures).
- QX
123 departures · 9,348 seats
Share of departures100.0%71.3%
Load
What plane flies SEA–YKM?
In July 2026, the Embraer E175 flew 100% of SEA–YKM departures.
- Embraer E175
123 departures · 71.3% load
100.0%
How has SEA–YKM traffic changed?
Nonstop SEA–YKM departures fell from 124 in August 2025 to 123 in July 2026.
Monthly nonstop SEA–YKM traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
124 departures · 6,913 passengers
73.4%
Load
September 2025
122 departures · 7,212 passengers
76.7%
Load
October 2025
119 departures · 7,180 passengers
79.4%
Load
November 2025
116 departures · 6,529 passengers
74.1%
Load
December 2025
123 departures · 7,751 passengers
81.0%
Load
January 2026
113 departures · 6,636 passengers
77.3%
Load
February 2026
109 departures · 6,254 passengers
75.5%
Load
March 2026
125 departures · 7,589 passengers
78.0%
Load
April 2026
120 departures · 6,708 passengers
73.6%
Load
May 2026
126 departures · 7,267 passengers
74.2%
Load
June 2026
120 departures · 6,875 passengers
75.4%
Load
July 2026
123 departures · 6,660 passengers
71.3%
Load
By direction
Each direction is filed separately — they rarely match.
YKM → SEA
72.9% full
62 departures · 3,434 passengers
SEA → YKM
69.6% full
61 departures · 3,226 passengers
Nonstop SEA–YKM traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Yakima
US
Yakima Air Terminal McAllister Field
Coordinates
46.57°N, 120.54°W
Hemisphere
N · W
Frequently asked
How far is Seattle (SEA) from Yakima (YKM)?
SEA to YKM is 103 miles (166 km / 90 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SEA to YKM?
A nonstop covers the 103-mile great-circle distance in roughly 1h 00m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SEA–YKM?
In July 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying SEA–YKM?
Distance-based programs credit off the 103-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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