ICAO Airline Codes: O

ICAO Airline Code - O

The ICAO airline designator is a three-letter designation code assigned by the International Civil Aviation Organization (ICAO) to aircraft operating agencies, aeronautical authorities and services.
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ICAO code	IATA code	AWB prefix	Airline name	Base airport	Country	Start	End
OAE	OY	-	Omni Air Express	Tulsa, OK	USA	1997	-
OAL	OA	050	Olympic Air	Athens (ATH)	Greece	2003	-
OAO	-	-	2nd Arkhangelsk	Vaskovo	Russia	1935	-
OAS	WY	910	Oman Air	Muscat-Seeb	Oman	1993	-
OAW	2L	-	Helvetic Airways	Zurich (ZRH)	Switzerland	2003	-
OBM	-	-	Aviaobshemash	Troistk	Russia	1992	-
OBS	-	-	Orbest	Palma (PMI)	Spain	2007	-
OCA	R7	717	ASERCA Airlines	Valencia (VLC)	Venezuela	1990	-
ODS	5K	-	Odessa Airlines	Odessa	Ukraine	1996	-
OEA	OX	578	Orient Thai Airlines	Bangkok	Thailand	1995	-
OHY	8Q	-	Onur Air	Istanbul (IST)	Turkey	1992	-
OKA	BK	-	Okay Airways	Tinajin	China	2004	-
OLA	OJ	-	Overland Airways	Lagos	Nigeria	2003	-
OLT	OL	704	OLT- Ostfriesische Lufttransport GmbH	Emden	Germany	1958	-
OMS	N3	-	Omskavia	Omsk	Russia	1994	-
ONE	O6	-	Oceanair	Sao Paulo	Brazil	1998	-
ORB	R2	291	Orenair	Orenburg	Russia	2006	-
ORX	-	720	Orex Airlines	Istanbul (IST)	Turkey	2002	-
OST	2D	-	Alania Airlines	Beslan (OGZ)	Russia	2002	-
OTG	OG	-	One-Two-Go	Bangkok	Thailand	2005
OTL	YG	-	South Airlines	Odessa	Ukraine	1999	-
OVA	-	-	Aeronova	Valencia (VLC)	Spain	1996
OZW	XR	674	Skywest Airlines	Perth, WA	Australia	1963	-

Defunct Airlines