Frontier Airlines' first A321neo.
Frontier Airlines.
  • Frontier Airlines bumped the biggest proportion of passengers of the 15 largest US carriers in early 2023.
  • Of every 10,000 Frontier passengers, 3.73 were involuntarily denied boarding due to oversales, the DOT said.
  • Allegiant, Delta, Endeavor, and Hawaiian didn't bump any passengers in the quarter, per the DOT.

Frontier Airlines was the most likely of the 15 largest US carriers to bump people from flights in early 2023.