FLIGHTLINE INTEL COMMERCIAL AVIATION INTELLIGENCE
Route T-100 Intelligence

SEA ↔ SJC

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

437,693
2026 passengers
4,190
2026 departures
79.6%
2026 market load factor

2026 airlines

CodeAirlinePassengersDeparturesLoad factor
ASAlaska Airlines Inc.245,9301,78480.3%
OOSkyWest Airlines Inc.97,2151,54385.8%
WNSouthwest Airlines Co.88,11578073.5%
QXHorizon Air3,8785789.5%
DLDelta Air Lines Inc.9261036.7%
AAAmerican Airlines Inc.785667.8%
UAUnited Air Lines Inc.662474.6%
5YAtlas Air Inc.182416.2%
SYSun Country Airlines d/b/a MN Airlines020.0%

Annual history

YearPassengersPassengers/daySeatsDeparturesLoad factor
2015996,3022,729.61,191,2509,40483.6%
20161,070,6092,925.21,301,8229,78482.2%
20171,148,5473,146.71,384,43710,20583.0%
20181,280,5903,508.51,574,23411,56981.3%
20191,299,0843,559.11,614,19012,11580.5%
2020391,0601,068.5908,0997,30643.1%
2021606,3481,661.2970,0918,05262.5%
20221,035,5032,837.01,328,8989,98077.9%
20231,038,8322,846.11,391,0499,85674.7%
2024991,1962,708.21,246,8349,17579.5%
2025934,8862,561.31,203,9189,02677.7%
2026437,6932,418.2549,6594,19079.6%
Source: U.S. Department of Transportation, Bureau of Transportation Statistics T-100 Segment data.