Seattle (SEA) to Hailey (SUN)
Flight time
≈ 1h 45m
Bearing
122° SE
Seattle (SEA) to Hailey (SUN) is 474 miles (763 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SEA–SUN
Filed traffic dataIn June 2026, Horizon Air was the only carrier flying nonstop SEA–SUN; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 70% full.
Departures
54
June 2026
Seats
4,104
both directions
Passengers
2,874
both directions
Load factor
70.0%
RPM ÷ ASM
Who flies SEA–SUN?
Horizon Air was the only carrier to fly nonstop SEA–SUN in June 2026 (54 departures).
- QX
54 departures · 4,104 seats
Share of departures100.0%70.0%
Load
What plane flies SEA–SUN?
In June 2026, the Embraer E175 flew 100% of SEA–SUN departures.
- Embraer E175
54 departures · 70.0% load
100.0%
How has SEA–SUN traffic changed?
Nonstop SEA–SUN departures fell from 60 in July 2025 to 54 in June 2026.
Monthly nonstop SEA–SUN traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
60 departures · 3,624 passengers
79.5%
Load
August 2025
62 departures · 3,933 passengers
83.5%
Load
September 2025
60 departures · 2,785 passengers
61.1%
Load
October 2025
21 departures · 1,078 passengers
67.5%
Load
November 2025
30 departures · 1,212 passengers
53.2%
Load
December 2025
106 departures · 4,606 passengers
58.2%
Load
January 2026
118 departures · 5,194 passengers
58.3%
Load
February 2026
117 departures · 6,086 passengers
69.2%
Load
March 2026
143 departures · 6,043 passengers
56.3%
Load
April 2026
46 departures · 1,621 passengers
46.4%
Load
May 2026
34 departures · 1,214 passengers
47.0%
Load
June 2026
54 departures · 2,874 passengers
70.0%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → SUN
73.0% full
27 departures · 1,498 passengers
SUN → SEA
67.1% full
27 departures · 1,376 passengers
Nonstop SEA–SUN traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Seattle (SEA) from Hailey (SUN)?
SEA to SUN is 474 miles (763 km / 412 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SEA to SUN?
A nonstop covers the 474-mile great-circle distance in roughly 1h 45m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SEA–SUN?
In June 2026, the Embraer E175 flew the largest share of departures (100.0%).
What mileage do I earn flying SEA–SUN?
Distance-based programs credit off the 474-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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