Site Map - Airports
- O'Neill Airport (ONL)
- Oak Harbor Airport (ODW)
- Oakland Airport (OAK)
- Oakland Airport (OBT)
- Oamaru Airport (OAM)
- Oaxaca Airport (OAX)
- Oban Airport (OBA)
- Obano Airport (OBD)
- Obbia Airport (CMO)
- Obihiro Airport (OBO)
- Ocala Airport (OCF)
- Ocean City Airport (OCE)
- Oceanic Airport (OCI)
- Oceanside Airport (OCN)
- Ocho Rios Airport (OCJ)
- Odense Airport (ODE)
- Odessa Airport (ODS)
- Odiham Airport (ODM)
- Oerlinghausen Airport (OEN)
- Offenburg Airport (OFG)
- Ofu Airport (OFU)
- Ogallala Airport (OGA)
- Ogle Airport (OGL)
- Ohakea Airport (OHA)
- Ohrid Airport (OHD)
- Oita Airport (OIT)
- Okaukuejo Airport (OKF)
- Okayama Airport (OKJ)
- Okeechobee Airport (OKB)
- Oki Airport (OKI)
- Okinawa Airport (OKA)
- Okinoerabu Airport (OKE)
- Oklahoma City Airport (OKC)
- Okmulgee Airport (OKM)
- Okondja Airport (OKN)
- Okoyo Airport (OKG)
- Okushiri Airport (OIR)
- Olanchito Airport (OAN)
- Olbia Airport (OLB)
- Old Crow Airport (YOC)
- Old Town Airport (OLD)
- Olean Airport (OLE)
- Olive Branch Airport (OLV)
- Oliver Airport (OVR)
- Olney Airport (OLY)
- Olney Airport (ONY)
- Olomouc Airport (OLO)
- Olympia Airport (OLM)
- Omaha Airport (OMA)
- Omak Airport (OMK)
- Omega Airport (OMG)
- Omsk Airport (OMS)
- Omura Airport (OMJ)
- Ondangwa Airport (OND)
- Ondjiva Airport (NGV)
- Oneonta Airport (ONH)
- Ongiva Airport (VPE)
- Ononge Airport (ONB)
- Onotoa Airport (OOT)
- Onslow Airport (ONS)
- Ontario Airport (ONO)
- Ontario Airport (ONT)
- Oodnadatta Airport (ODD)
- Opuwa Airport (OPW)
- Oradea Airport (OMR)
- Oran Airport (ORN)
- Orange Airport (JOR)
- Orange Airport (OAG)
- Orange Walk Airport (ORZ)
- Orangeburg Airport (OGB)
- Oranjemund Airport (OMD)
- Oranjestad Airport (ORJ)
- Orapa Airport (ORP)
- Orchid Island Airport (KYD)
- Örebro Airport (ORB)
- Orenburg Airport (REN)
- Orinduik Airport (ORJ)
- Orlando Airport (ORL)
- Orly Airport (ORY)
- Örnsköldsvik Airport (OER)
- Orsk Airport (OSW)
- Ørsta-Volda Airport (HOV)
- Oruro Airport (ORU)
- Osage Beach Airport (OSB)
- Osaka Airport (OSA)
- Osan Airport (OSN)
- Osceola Airport (OEO)
- Osh Airport (OSS)
- Oshakati Airport (OHI)
- Oshawa Airport (OSH)
