7 US Airlines With The Most Flights Scheduled In 2026

In 2026, scheduled passenger flights will remain dominated by the four largest US-based carriers, with Alaska Airlines forming a respectable fifth-largest. There are many ways to grade the size of airlines, including fleet size, number of people carried, revenue generated, and the number of flights. When considering the number of flights, it’s also worth keeping in mind that some airlines fly on average longer routes than other airlines.