WalletHub analyzed major airlines for 13 metrics, including flight reliability, complaints and in-flight comfort. The highest rated in 2015 were:
1. Virgin America
2. JetBlue Airways
3. Alaska Airlines
4. Hawaiian Airlines
5. Delta Air Lines
Source: WallHub “Best and Worst Airlines for 2015.”
The worst rated airlines, in order, were Frontier, Spirit and ExpressJet.
