США, ICAO: UPS, IATA: 5X

United Parcel Service (5X)

США, ICAO: AIO

United States Air Force

США, ICAO: CGX

United States Coast Guard Auxiliary

США, ICAO: AGR

United States Department Of Agriculture

Россия, ICAO: UMS

США, ICAO: PNA

Universal Airlines

США, ICAO: UVA

Universal Airways

Украина, ICAO: HBU

Universal Avia

Испания, ICAO: UNJ

Universal Jet

США, ICAO: UJT

Universal Jet Aviation

Мексика, ICAO: UJR

Universal Jet Rental de Mexico

Великобритания, ICAO: UAD

University Air Squadron

США, ICAO: NDU

University of North Dakota

Турция, ICAO: UNS

Unsped Paket Servisi

Россия, ICAO: URV

Армения, ICAO: UTU

Urartu-Air

Испания, ICAO: UGC

Urgemer Canarias

США, ICAO: UCH

US Airports Air Charter

США, ICAO: AWE, IATA: US

US Airways (US)

США, ICAO: GKA

US Army Parachute Team