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

Delta's flights are known for being on time or early. The airline's seats are extremely comfortable and, unlike other airlines, there's plenty of legroom. "Delta Airlines excels in key categories like on-time departures and arrivals, baggage fees, involuntary bumps, and lost baggage," Kelly said. "According to our annual reports over the years, nearly 89 percent of Delta flights made it on time last year. Compare that with only about 82 percent for the rest of domestic airlines. And only 0.6 percent of Delta flights were canceled — less than half the rate of the other domestic airlines."