OBI

Óbidos Municipal Airport

OBI Brazil

America/Santarem

OBO

Obihiro

OBO Japan

Asia/Tokyo

OBC

Obock Airport

OBC

Africa/Djibouti

OCE

Ocean City Municipal Airport

OCE United States

America/New_York

NTU

Oceana Naval Air Station

NTU United States

America/New_York

OCN

Oceanside Municipal Airport

OCN United States

America/Los_Angeles

CEU

Oconee County

CEU United States

America/New_York

LEH

Octeville

LEH France

Europe/Paris

ONJ

Odate Noshiro

ONJ Japan

Asia/Tokyo

Odessa International

ODS Ukraine

Europe/Kiev

KEO

Odienne

KEO

Africa/Abidjan

OEC

Oecusse Route of the Sandalwood International Airport

OEC East Timor

Asia/Dili

OPI

Oenpelli

OPI Australia

Australia/Darwin

OFF

Offutt Air Force Base

OFF United States

OGD

Ogden Hinckley Airport

OGD United States

America/Denver

OGS

Ogdensburg

OGS United States

America/New_York

YOG

Ogoki Post Airport

YOG Canada

America/Toronto

OSU

Ohio State University

OSU United States

America/New_York

OHD

Ohrid St. Paul the Apostle Airport

OHD Macedonia

Europe/Skopje

OYK

Oiapoque

OYK Brazil

America/Belem

OIT

Oita Airport

OIT Japan

Asia/Tokyo

OKQ

Okaba Airport

OKQ Indonesia

Asia/Jayapura

OKD

Okadama

OKD Japan

Asia/Tokyo

OKJ

Okayama

OKJ Japan

Asia/Tokyo

OBE

Okeechobee County Airport

OBE United States

America/New_York

OHO

Okhotsk

OHO Russia

Asia/Vladivostok

OKI

Oki Island

OKI Japan

Asia/Tokyo

OKE

Okino Erabu

OKE Japan

Asia/Tokyo

OKM

Okmulgee

OKM United States

America/Chicago

OKN

Okondja

OKN Gabon

Africa/Libreville

OKL

Oksibil

OKL Indonesia

Asia/Jayapura

OKT

Oktiabrskij

OKT Russia

Asia/Yekaterinburg

OIR

Okushiri

OIR Japan

Asia/Tokyo

OFJ

Olafsfjordur

OFJ Iceland

Atlantic/Reykjavik

OVR

Olavarria

OVR Argentina

America/Argentina/Buenos_Aires

YOC

Old Crow

YOC Canada

America/Whitehorse

OLD

Old Town

OLD United States

America/New_York

ULG

Ölgii Mongolei International Airport

ULG Mongolia

Asia/Hovd

OLV

Olive Branch Airport

OLV United States

America/Chicago

JNB

Oliver Reginald Tambo International (Jan Smuts International)

JNB South Africa

Africa/Johannesburg

OLO

Olomouc

OLO Czech Republic

Europe/Prague

SZY

Olsztyn-Mazury Airport

SZY Poland

Europe/Warsaw

OLM

Olympia

OLM United States

America/Los_Angeles

OLP

Olympic Dam

OLP Australia

Australia/Adelaide

OMB

Omboue Hospital Airport

OMB Gabon

Africa/Libreville

OMG

Omega Airport

OMG Namibia

Africa/Windhoek

OMS

Omsk Central Airport

OMS Russia

Asia/Omsk

OND

Ondangwa

OND Namibia

Africa/Windhoek