List of regional airlines

Alaska Air Group
• Horizon Air

AMR Corporation
• American Eagle Airlines • Executive Airlines

Delta Air Lines, Inc.
• Comair • Compass Airlines • Mesaba Airlines

Expressjet Holdings, Inc.
• ExpressJet Airlines

Gavarnie Holdings
• d/b/a Island Air

Gulfstream International Group
• Gulfstream International Airlines

Great Lakes Aviation, Ltd.
• Great Lakes Airlines

Hyannis Air Service, Inc.
• Cape Air

Mesa Air Group
• Freedom Airlines • Mesa Airlines • go! Mokulele

PacificWings L.L.C
• d/b/a Pacific Wings Airlines • d/b/a New Mexico Airlines • d/b/a GeorgiaSkies • d/b/a Tennessee Skies • d/b/a Kentucky Skies

Pinnacle Airlines Corp.
• Colgan Air • Pinnacle Airlines

Wexford Capital Republic Airways Holdings
• Chautauqua Airlines • Frontier Airlines Holdings - Lynx Aviation • Republic Airlines • Shuttle America

SeaPort Air Group, L.L.C.
• Alaska Juneau Aeronautics (d/b/a) • SeaPort Airlines • Alaska Juneau Aeronautics (d/b/a) • Wings of Alaska

SkyWest, Inc.
• Atlantic Southeast Airlines • SkyWest Airlines

Trans States Holdings
• GoJet Airlines • Trans States Airlines

US Airways Group
• Piedmont Airlines • PSA Airlines