I've been wanting to do five fictional airline articles for this wiki. Four of them are from the Ace Combat franchise video games' Strangereal universe:
Air Ixiom from both Ace Combat 04: Shattered Skies (2001) and Ace Combat 5: The Unsung War (2004)
https://acecombat.fandom.com/wiki/Air_Ixiom
Osea West Airlines (OWA) from Ace Combat 5: The Unsung War (2004)
https://acecombat.fandom.com/wiki/Osea_West
Air Erusea from Ace Combat 5: The Unsung War (2004) and Ace Combat 7: Skies Unknown (2019)
https://acecombat.fandom.com/wiki/Air_Erusea
Emmeria Airways from Ace Combat 7: Skies Unknown (2019) https://acecombat.fandom.com/wiki/Emmeria_Airways
And the fifth one (one that I think should be an actual article on this wiki) being a fictional airline in a version of Real Life:
Yamato Airlines from the manga, OVA, and anime series Area 88.
https://en.wikipedia.org/wiki/Area_88