Lihue, Kauai (LIH) to Seattle (SEA)
Flight time
≈ 6h 12m
Bearing
40° NE
Lihue, Kauai (LIH) to Seattle (SEA) is 2,700 miles (4,345 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies LIH–SEA
Filed traffic dataIn May 2026, Alaska Airlines operated the most departures, one of 2 carriers flying nonstop LIH–SEA; the Boeing 737-800 was the most common aircraft at 42% of departures; flights ran 83% full.
Departures
185
May 2026
Seats
31,798
both directions
Passengers
26,372
both directions
Load factor
82.9%
RPM ÷ ASM
Who flies LIH–SEA?
Alaska Airlines operated the most nonstop LIH–SEA departures in May 2026 (124), one of 2 carriers on the route.
- AS
124 departures · 19,964 seats
Share of departures67.0%80.5%
Load
- DL
61 departures · 11,834 seats
Share of departures33.0%87.0%
Load
What plane flies LIH–SEA?
In May 2026, the Boeing 737-800 flew 42% of LIH–SEA departures — more than any other aircraft type.
- Boeing 737-800
78 departures · 79.6% load
42.2% - Airbus A321neo
61 departures · 87.0% load
33.0% - Boeing 737 MAX 8
44 departures · 84.2% load
23.8% - Boeing 737 MAX 9
2 departures · 40.5% load
1.1%
How has LIH–SEA traffic changed?
Nonstop LIH–SEA departures rose from 179 in June 2025 to 185 in May 2026.
Monthly nonstop LIH–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
179 departures · 27,388 passengers
89.6%
Load
July 2025
182 departures · 27,665 passengers
88.9%
Load
August 2025
186 departures · 27,995 passengers
88.1%
Load
September 2025
178 departures · 23,458 passengers
77.1%
Load
October 2025
183 departures · 26,369 passengers
84.4%
Load
November 2025
176 departures · 24,027 passengers
80.0%
Load
December 2025
176 departures · 24,783 passengers
83.0%
Load
January 2026
183 departures · 26,448 passengers
84.5%
Load
February 2026
166 departures · 24,942 passengers
87.7%
Load
March 2026
177 departures · 27,099 passengers
89.1%
Load
April 2026
180 departures · 26,724 passengers
86.5%
Load
May 2026
185 departures · 26,372 passengers
82.9%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → LIH
80.2% full
94 departures · 12,956 passengers
LIH → SEA
85.8% full
91 departures · 13,416 passengers
Nonstop LIH–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Lihue, Kauai (LIH) from Seattle (SEA)?
LIH to SEA is 2,700 miles (4,345 km / 2,346 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from LIH to SEA?
A nonstop covers the 2,700-mile great-circle distance in roughly 6h 12m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies LIH–SEA?
In May 2026, the Boeing 737-800 flew the largest share of departures (42.2%), followed by the Airbus A321neo (33.0%).
What mileage do I earn flying LIH–SEA?
Distance-based programs credit off the 2,700-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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