The COVID-19 pandemic put a halt to the travel plans of many, and Billings Logan International Airport is seeking the effect.
The number of passengers traveling through the airport was down nearly 48 percent in 2020 from the previous year, according to the airport's annual report.
The airport saw 248,597 passengers boarding planes in 2020, down from 474,762 in 2019, according to airport stats.
Passengers getting off the planes, or deplanements, also fell dramatically, from 476,085 in 2019 to 251,348 in 2020.
Delta saw one of the largest drops in Billings, falling about 75 percent in 2020.