19. West Air

West Air Airbus A320
Flickr/byeangel

15. Vueling Airlines

Airbus A320 Vueling
Flickr/Eric Salard

12. JetStar Asia

Jetstar Asia Airbus A320
YouTube/Prayitno

9. Eurowings

Eurowings Airbus A330
Lufthansa

8. Southwest Airlines

southwest airlines
Scott Olson / Getty Images

7. IndiGo

Airbus A320 Indigo
REUTERS/Adnan Abidi

6. WestJet

WestJet Boeing 737
WestJet

4. JetStar Airways

Jetstar Asia Airbus A320
YouTube/Prayitno

3. EasyJet

easyjet wright
Wright Electric

1. AirAsia

Airbus A330 200 AirAsia X
Airbus