 | WestJet | 1995 | 117 |
 | Wizz Air Hungary Ltd. | 2004 | 68 |
 | Wideroe | 1934 | 40 |
 | WestJet Encore | 2013 | 28 |
 | White coloured by you | 2005 | 7 |
 | WOW air | 2012 | 7 |
 | West Air | 1962 | 5 |
 | Wamos Air | 2014 | 4 |
 | Wings of Lebanon S.a.l | - | 2 |
 | Wind Rose Aviation Company | 2007 | 2 |
| Walsten Air Service | - | - |
| Williams Grand Prix Engineering | - | - |
 | Welcome Air | - | - |
| Westpoint Air | - | - |
| Westair Aviation | - | - |
| WRA | - | - |
| Westair Industries | - | - |
| Winair | - | - |
| Windsor Jet Management | - | - |
| World Weatherwatch | - | - |
| West Link Airlines (Nigeria) | - | - |
| Williams Air | - | - |
 | Wright Air Service Inc. | - | - |
| Waters-Aero Marine | - | - |
 | West Coast Air | - | - |
 | Worldwide Jet Charter | - | - |
| Wiking Helikopter Service | - | - |
| Western Kenya Aircharters | - | - |
| Western Air Couriers | - | - |
| West African Air Transport | - | - |
| Westcoast Energy | - | - |
| Wasaya Airways | - | - |
| Wijet | - | - |
| Wisconsin Air National Guard | - | - |
| Wyoming Airlines | - | - |
| Walmart Aviation | - | - |
| Winair | - | - |
| Waddington FTU | - | - |
| Westair Cargo Airlines | - | - |
 | Wings Of Alaska | - | - |
| Working on Fire | - | - |
| West Coast Air | - | - |
| Wuerth Aviation | - | - |
| Wapiti Aviation | - | - |
| Weasua Air Transport Company | - | - |
| WDL Aviation | - | - |
| Western Pacific Airservice | - | - |
| Warbelow's Air Ventures | - | - |
| Western Air Express | - | - |
| WDA - Wimbi Dira Airways | - | - |
| Winlink | - | - |
| Western Air | - | - |
| Wiggins Airways | - | - |
| Windrose Air | - | - |
| Wondair On Demand Aviation | - | - |
 | Wuhan Airlines | - | - |
| Westwind Aviation | - | - |
| WSI | - | - |
| Wings Aviation | - | - |
| World Air Cargo Company (International Air Company) | - | - |
| Western Global Airlines | - | - |
| Wisman Aviation | - | - |
 | West African Airlines | - | - |
| West Freugh DTEO | - | - |
| Wings Aviation | - | - |
| West Caribbean Airways | - | - |
| Wings Airways | - | - |
| Wilderness Air South Africa | - | - |
| Westair Aviation | - | - |
| Wanfeng General Aviation | - | - |
| Wizz Air Ukraine | - | - |
| West Air Luxembourg | - | - |
| Welch Aviation | - | - |
 | West African Airlines | - | - |
| Watermakers Air | - | - |
| West Coast Airlines | - | - |
| Western Aviators | - | - |
| Worldwide Aviation Services | - | - |
| Wings Air | - | - |
| Wind Spirit Air | - | - |
| West Coast Airways | - | - |
| West-Caravan | - | - |
| Wings Air Transport | - | - |
| Wermlandsflyg | - | - |
| World Airways | - | - |
| Waltair Europe | - | - |
| Warton Large Aircraft Flight Operations | - | - |
| White River Air Services | - | - |
| Wings Express | - | - |
| Weatherzone | - | - |
| World Atlantic Airlines | - | - |
| Wittering FTU | - | - |
 | Windward Islands Airways Int'l N.V. | 1961 | - |
 | WOW Air ehf | 2011 | - |