ColumbiAir

ColumbiAir is the principal airline of Lower Columbia, and is among the largest carriers within the Alliance of Independent Nations. It offers flights both within Lower Columbia, mainly on its Regional Express service, and to/from numerous international destinations. Its hubs are Nyhaven International Airport, Seattle–Tacoma International Airport, and Vancouver International Airport; together, these three airports are home to all of its international departures and arrivals, while it maintains its corporate headquarters in midtown Nyhaven.

Fleet
ColumbiAir operates a total of 272 aircraft as of October 2016, most of them various models of Boeing jets. All of the widebody aircraft operate out of ColumbiAir's international hubs at Nyhaven, Seattle–Tacoma, and Vancouver.