Before You Travel in 2019, Here Are the Best (and Worst) Airlines, According to Experts and Fliers

With more than 50 percent of customer reviews rating Allegiant Air as "average" on TripAdvisor, and through reading reviews based off of firsthand experiences, it's evident that travelers are mostly booking this airline for cheap weekend getaways and last-minute trips. It's a no-frills airline, so you get what you pay for, including cramped seats.