IATA
|
ICAO
|
Airline
|
Call sign
|
Country
|
Comments
|
|
UEU
|
United European Airlines
|
UNITED EUROPEAN
|
Romania
|
2014[1]
|
|
UCG
|
Uniworld Air Cargo
|
UNIWORLD
|
Panama
|
2014[1]
|
|
CUH
|
Urumqi Airlines
|
LOULAN
|
China
|
2014[1]
|
|
DOD
|
USAF Air Mobility Operations Control Center
|
|
United States
|
|
|
DOI
|
U.S. Department of the Interior
|
INTERIOR
|
United States
|
Office of Aircraft Services
|
|
CNV
|
U.S. Navy Reserve Logistic Air Forces
|
CONVOY
|
United States
|
U.S. Navy Reserve Logistic Air Forces, New Orleans, LA, USA
|
|
EXM
|
United Kingdom Civil Aviation Authority
|
EXAM
|
United Kingdom
|
CAA Flight Examiners
|
|
GIH
|
Union des Transports Africains de Guinee
|
TRANSPORT AFRICAIN
|
Guinea
|
|
|
GKA
|
US Army Parachute Team
|
GOLDEN KNIGHTS
|
United States
|
|
|
GWY
|
USA3000 Airlines
|
GETAWAY
|
United States
|
was U5
|
B7
|
UIA
|
UNI Air
|
GLORY
|
Taiwan
|
|
|
UAB
|
United Arabian Airlines
|
UNITED ARABIAN
|
Sudan
|
|
UA
|
UAL
|
United Airlines
|
UNITED
|
United States
|
|
4H
|
UBD
|
United Airways
|
UNITED BANGLADESH
|
Bangladesh
|
|
|
UAC
|
United Air Charters
|
UNITAIR
|
Zimbabwe
|
|
|
UCS
|
United Carriers Systems
|
UNITED CARRIERS
|
United States
|
|
|
UEA
|
United Eagle Airlines
|
UNITED EAGLE
|
China
|
|
|
UFS
|
United Feeder Service
|
FEEDER EXPRESS
|
United States
|
formerly part of United Express
|
|
CFU
|
United Kingdom Civil Aviation Authority
|
MINAIR
|
United Kingdom
|
Civil Aviation Authority Flying Unit
|
|
KRF
|
United Kingdom Royal VIP Flights
|
KITTYHAWK
|
United Kingdom
|
In Military Aircraft
|
|
KRH
|
United Kingdom Royal VIP Flight
|
SPARROWHAWK
|
United Kingdom
|
In Civil Chartered Aircraft
|
|
SDS
|
United Kingdom Civil Aviation Authority
|
STANDARDS
|
United Kingdom
|
Training Standards
|
|
TQF
|
United Kingdom Royal VIP Flights
|
RAINBOW
|
United Kingdom
|
Helicopter Flights
|
|
CGX
|
United States Coast Guard Auxiliary
|
COASTGUARD AUXAIR
|
United States
|
|
|
AGR
|
United States Department Of Agriculture
|
AGRICULTURE
|
United States
|
|
|
UAD
|
University Air Squadron
|
|
United Kingdom
|
MOD Boscombe Down
|
|
UAJ
|
University Air Squadron
|
|
United Kingdom
|
Glasgow
|
|
UAA
|
University Air Squadron
|
|
United Kingdom
|
Leuchars
|
|
UAS
|
University Air Squadron
|
|
United Kingdom
|
RAF Cranwell
|
|
HBU
|
Universal Avia
|
KHARKIV UNIVERSAL
|
Ukraine
|
|
|
HLE
|
UK HEMS
|
HELIMED
|
United Kingdom
|
|
U7
|
JUS
|
USA Jet Airlines
|
JET USA
|
United States
|
|
|
LEA
|
Unijet
|
LEADAIR
|
France
|
|
|
MSH
|
US Marshals Service
|
MARSHALAIR
|
United States
|
US Department of Justice
|
|
NDU
|
University of North Dakota
|
SIOUX
|
United States
|
|
|
PNA
|
Universal Airlines
|
PACIFIC NORTHERN
|
United States
|
|
|
|
Upali Air
|
UPALI
|
Sri Lanka
|
defunct
|
|
RAU
|
Uganda Royal Airways
|
UGANDA ROYAL
|
Uganda
|
|
|
SAU
|
United Aviation Services
|
UNISERVE
|
Spain
|
|
U6
|
SVR
|
Ural Airlines
|
SVERDLOVSK AIR
|
Russia
|
|
|
TRB
|
Ukraine Transavia
|
KIROVTRANS
|
Ukraine
|
|
|
UAF
|
United Arab Emirates Air Force
|
UNIFORCE
|
United Arab Emirates
|
|
|
UAI
|
Union Africaine des Transports
|
UNAIR
|
Ivory Coast
|
|
|
UCC
|
Uganda Air Cargo
|
UGANDA CARGO
|
Uganda
|
|
|
UCH
|
US Airports Air Charter
|
US CHARTER
|
United States
|
|
|
UCO
|
Ucoaviacion
|
UCOAVIACION
|
Spain
|
|
|
UES
|
Ues-Avia Aircompany
|
AVIASYSTEM
|
Ukraine
|
|
QU
|
UGA
|
Uganda Airlines (1976–2001)
|
UGANDA
|
Uganda
|
Ceased operations 2001
|
UR
|
UGD
|
Uganda Airlines
|
CRESTED
|
Uganda
|
Started operations in 2019
|
|
UGC
|
Urgemer Canarias
|
URGEMER
|
Spain
|
|
|
UHL
|
Ukrainian Helicopters
|
UKRAINE COPTERS
|
Ukraine
|
|
|
UHS
|
Ulyanovsk Higher Civil Aviation School
|
PILOT AIR
|
Russia
|
|
|
UJR
|
Universal Jet Rental de Mexico
|
UNIVERSAL JET
|
Mexico
|
|
|
UJT
|
Universal Jet Aviation
|
UNI-JET
|
United States
|
Cancelled 2014 - Renamed Journey Aviation with code JNY
|
|
UKI
|
UK International Airlines
|
KHALIQ
|
United Kingdom
|
|
|
UKL
|
Ukraine Air Alliance
|
UKRAINE ALLIANCE
|
Ukraine
|
|
UF
|
UKM
|
UM Airlines
|
UKRAINE MEDITERRANEE
|
Ukraine
|
Ukraine Mediterranean Airlines
|
|
UKN
|
Ukraine Air Enterprise
|
ENTERPRISE UKRAINE
|
Ukraine
|
|
|
UKP
|
National Police Air Service
|
POLICE
|
United Kingdom
|
|
6Z
|
UKS
|
Ukrainian Cargo Airways
|
CARGOTRANS
|
Ukraine
|
|
|
ULT
|
Ultrair
|
ULTRAIR
|
United States
|
|
|
ULH
|
Ultimate HELI
|
ULTIMATEHELI
|
South Africa
|
Ultimate HELI (Pty) Ltd
|
|
ULR
|
Ultimate Air
|
VIPER
|
South Africa
|
Ultimate Airways (Pty) Ltd
|
OL
|
ULS
|
Ultra Air
|
AIR ULTRA
|
Colombia
|
|
|
UNC
|
Uni-Fly
|
UNICOPTER
|
Denmark
|
|
|
UNF
|
Union Flights
|
UNION FLIGHTS
|
United States
|
|
|
UNJ
|
Universal Jet
|
PROJET
|
Spain
|
|
|
UNS
|
Unsped Paket Servisi
|
UNSPED
|
Turkey
|
|
|
UNU
|
Unifly Servizi Aerei
|
UNIEURO
|
Italy
|
|
|
UPL
|
Ukrainian Pilot School
|
PILOT SCHOOL
|
Ukraine
|
|
5X
|
UPS
|
United Parcel Service
|
UPS
|
United States
|
|
|
URV
|
Uraiavia
|
URAI
|
Russia
|
|
US
|
AWE
|
US Airways
|
CACTUS
|
United States
|
defunct, merged with American Airlines in 2015
|
BS
|
UBG
|
US-Bangla Airlines
|
BANGLA STAR
|
Bangladesh
|
|
|
USF
|
USAfrica Airways
|
AFRICA EXPRESS
|
United States
|
|
UH
|
USH
|
US Helicopter
|
US-HELI
|
United States
|
|
|
USJ
|
US Jet
|
USJET
|
United States
|
|
|
USX
|
US Express
|
AIR EXPRESS
|
United States
|
|
QU
|
UTN
|
UTair-Ukraine
|
UT Ukraine
|
Ukraine
|
|
|
TUM
|
UTAir
|
UTAIR-CARGO
|
Russian Federation
|
2014[1]
|
UT
|
UTA
|
UTair Aviation
|
UTAIR
|
Russia
|
WAS P2 till 2006
|
|
UTR
|
Utair South Africa
|
AIRUT
|
South Africa
|
|
|
UTS
|
Ukrainian State Air Traffic Service Enterprise
|
AIRRUH
|
Ukraine
|
|
|
UTU
|
Urartu-Air
|
|
Armenia
|
|
|
UVA
|
Universal Airways
|
UNIVERSAL
|
United States
|
|
|
UVG
|
Universal Airlines
|
GUYANA JET
|
Guyana
|
|
|
UVM
|
Uvavemex
|
UVAVEMEX
|
Mexico
|
|
|
AIO
|
United States Air Force
|
AIR CHIEF
|
United States
|
Chief of Staff
|
|
UVN
|
United Aviation
|
UNITED AVIATION
|
Kuwait
|
|
HY
|
UZB
|
Uzbekistan Airways
|
UZBEK
|
Uzbekistan
|
|
PS
|
AUI
|
Ukraine International Airlines
|
UKRAINE INTERNATIONAL
|
Ukraine
|
|
|
WEC
|
Universal Airlines
|
AIRGO
|
United States
|
|
US
|
|
Unavia Suisse
|
|
Switzerland
|
|
|
QID
|
USAF 100th Air Refueling Wing
|
QUID
|
United States
|
|
|
UIT
|
University of Tromsø School of Aviation
|
ARCTIC
|
Norway
|
|
|
UNO
|
United Nations
|
UNITED NATIONS
|
n/a
|
UNOxxx followed by P(peacekeeping), or H(Humanitarian)
|