FLIGHTLINE INTEL COMMERCIAL AVIATION INTELLIGENCE
Route T-100 Intelligence

JFK ↔ SEA

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

403,461
2026 passengers
2,700
2026 departures
84.2%
2026 market load factor

2026 airlines

CodeAirlinePassengersDeparturesLoad factor
DLDelta Air Lines Inc.199,5261,19786.3%
ASAlaska Airlines Inc.188,1071,30782.1%
B6JetBlue Airways15,8289682.4%
KAQKalitta Air LLC01
CIChina Airlines Ltd.05
BREva Airways Corporation091
5YAtlas Air Inc.03

Annual history

YearPassengersPassengers/daySeatsDeparturesLoad factor
2015684,1471,874.4770,5964,68288.8%
2016805,4072,200.6897,2135,47289.8%
2017826,8252,265.3912,9365,23190.6%
2018963,7902,640.51,098,6766,41587.7%
20191,008,7582,763.71,142,9556,63788.3%
2020268,485733.6580,1713,59746.3%
2021585,5841,604.3811,0034,55872.2%
2022936,1832,564.91,121,8496,37683.5%
2023964,1482,641.51,115,3196,32586.4%
2024930,6052,542.61,046,1225,96689.0%
2025924,9922,534.21,052,2545,78287.9%
2026403,4612,229.1479,4222,70084.2%
Source: U.S. Department of Transportation, Bureau of Transportation Statistics T-100 Segment data.