| ALGT | Allegiant Travel |
| ULCC | Frontier Group |
| MESA | Mesa Air Group |
| AZUL | Azul |
| AAL | American Airlines Group |
| UAL | United Airlines |
| SNCY | Sun Country Airlines |
| ATSG | Air Transport Services Group |
| LUV | Southwest Airlines |
| DAL | Delta Air Lines |
| CPA | Copa |
| JBLU | JetBlue Airways |
| SKYW | SkyWest |
| ALK | Alaska Air Group |