A new list by a personal finance website has considered several factors such as safety, comfort and pet-friendliness, coming up with a ranking of what it calls the best and the worst.
Personal finance website WalletHub has analysed the nine largest US airlines and three regional carriers based on 15 criteria in four major categories.
The criteria include cancelled flights and delays, mishandled baggage, animal-related incidents, leg room, Wi-Fi availability, fatal injuries and price.
The company used 2018 data provided by the US Department of Transportation to come up with its ranking.
In addition to listing the best overall airlines, it also ranked carriers in the categories of most reliable, most comfortable, best for pets, least number of complaints and safest.
Delta Air Lines was deemed the most reliable with the lowest rate of cancellations, delay, mishandled luggage and denied boardings.
JetBlue received the accolade of most comfortable with its free amenities such as Wi-Fi, extra legroom, and complimentary snacks and beverages.
The airline with the lowest consumer complaint rate was Southwest Airlines.
ExpressJet and Envoy Air ranked as the best airlines for pets, reporting no incidents with travelling animals.
All things considered
However, Alaska Airlines was ranked the overall best airline due to a relatively low rate of cancelled flights and mishandled baggage reports, a low number of accidents and competitive pricing. The airline was also listed as the safest in this ranking.
Alaska also recently ranked highest in customer satisfaction among traditional carriers in North America for the 11th year in a row in a report by global marketing company JD Power.
Delta and SkyWest Airlines came in second and third overall, respectively.
At the bottom of the list were American Airlines above Envoy Air, which was in penultimate place, while Frontier Airlines ranked last as worst overall. But the ranking also determined it to be the least expensive of all the airlines surveyed.