FLIGHTLINE INTEL COMMERCIAL AVIATION INTELLIGENCE
Route T-100 Intelligence

DTW ↔ SEA

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

320,071
2026 passengers
1,944
2026 departures
87.9%
2026 market load factor

2026 airlines

CodeAirlinePassengersDeparturesLoad factor
DLDelta Air Lines Inc.242,1841,42988.3%
ASAlaska Airlines Inc.77,81451486.6%
ACAir Canada73153.3%

Annual history

YearPassengersPassengers/daySeatsDeparturesLoad factor
2015707,7001,938.9764,4844,15592.6%
2016731,7591,999.3812,9834,39090.0%
2017758,4622,078.0842,6544,63090.0%
2018791,8102,169.3899,3904,77688.0%
2019790,3692,165.4879,9534,63789.8%
2020293,722802.5618,3103,38747.5%
2021492,8121,350.2662,3093,37074.4%
2022625,6431,714.1719,0203,91687.0%
2023657,4021,801.1745,7244,06988.2%
2024680,7181,859.9750,9124,13090.7%
2025664,2951,820.0739,7174,05089.8%
2026320,0711,768.3364,2301,94487.9%
Source: U.S. Department of Transportation, Bureau of Transportation Statistics T-100 Segment data.