Delta Air Lines earned the highest overall WalletHub Score (70.48) after being the runner-up for three years in a row, followed by Hawaiian Airlines (67.00).
Delta Air Lines achieved this position because it has the lowest rate of cancelations, delays, mishandled luggage and denied boardings.
Southwest Airlines was the worst carrier among the 11 airlines evaluated with a score of 30.6, according to the research.
See how other airlines were ranked:
4. Envoy Air (60.46)
5. Spirit Airlines (59.22)
- SkyWest Airlines (57.01)
7. United Airlines (56.30)
8. Frontier Airlines (50.65)
9. JetBlue Airways (43.34)
10. American Airlines (41.40)