| AAL | American Airlines Group |
| ALGT | Allegiant Travel Company |
| ALK | Alaska Air Group |
| ATSG | Air Transport Services Group |
| CPA | Copa |
| DAL | Delta Air Lines |
| JBLU | JetBlue Airways |
| LUV | Southwest Airlines |
| SAVE | Spirit Airlines |
| SKYW | SkyWest |
| SNCY | Sun Country Airlines |
| UAL | United Airlines |