FLIGHTLINE INTEL COMMERCIAL AVIATION INTELLIGENCE
Route T-100 Intelligence

ICN ↔ SEA

Two-way market traffic, capacity, airline participation and annual performance.

331,935
2026 passengers
1,521
2026 departures
83.6%
2026 market load factor

2026 airlines

CodeAirlinePassengersDeparturesLoad factor
KEKorean Air Lines Co. Ltd.102,08747686.8%
DLDelta Air Lines Inc.91,47438480.7%
OZAsiana Airlines Inc.71,64426089.6%
ASAlaska Airlines Inc.66,49928577.8%
PRPhilippine Airlines Inc.231146.9%
N8National Air Cargo Group Inc d/ba National Airlines07
KJAIRZETA CO Ltd.0104
KAQKalitta Air LLC03
5YAtlas Air Inc.010.0%

Annual history

YearPassengersPassengers/daySeatsDeparturesLoad factor
2015396,3161,085.8474,7852,49383.5%
2016395,6191,080.9469,4742,13184.3%
2017424,6121,163.3515,2072,30582.4%
2018452,9381,240.9532,5812,42485.0%
2019434,3591,190.0522,9572,31583.1%
2020131,327358.8312,2261,59642.1%
202199,442272.4308,2181,70732.3%
2022305,984838.3410,2392,05374.6%
2023532,4051,458.6594,9952,52289.5%
2024535,9211,464.3620,7342,58786.3%
2025572,5321,568.6701,8482,71181.6%
2026331,9351,833.9397,1211,52183.6%
Source: U.S. Department of Transportation, Bureau of Transportation Statistics T-100 Segment data.