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
US DOT T-100 · filed dataIn April 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 44% of departures; flights ran 87% full.
Departures
180
April 2026
Seats
30,883
both directions
Passengers
26,724
both directions
Load factor
86.5%
passengers ÷ seats
Who flies LIH–SEA?
Alaska Airlines operated the most nonstop LIH–SEA departures in April 2026 (120), one of 2 carriers on the route.
- AS
Alaska Airlines
120 departures · 19,268 seats
Share of departures66.7%83.6%
Load
- DL
Delta Air Lines
60 departures · 11,615 seats
Share of departures33.3%91.4%
Load
What plane flies LIH–SEA?
In April 2026, the Boeing 737-800 flew 44% of LIH–SEA departures — more than any other aircraft type.
- Boeing 737-800
80 departures · 85.5% load
44.4% - Boeing 737 MAX 8
40 departures · 80.0% load
22.2% - Airbus A321neo
36 departures · 89.3% load
20.0% - Boeing 757-200
24 departures · 94.5% load
13.3%
How has LIH–SEA traffic changed?
Nonstop LIH–SEA departures fell from 186 in May 2025 to 180 in April 2026.
Monthly nonstop LIH–SEA traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
186 departures · 26,624 passengers
83.8%
Load
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
By direction
The DOT files each direction separately — they rarely match.
LIH → SEA
90.8% full
90 departures · 14,021 passengers
SEA → LIH
82.3% full
90 departures · 12,703 passengers
Nonstop LIH–SEA traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
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 April 2026, the Boeing 737-800 flew the largest share of departures (44.4%), followed by the Boeing 737 MAX 8 (22.2%).
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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