Pilot Alejandro Olmo Comella has visited (landed in) a total of 64 countries but have 175 countries yet to explore.

Afghanistan

Albania

Algeria

American Samoa

Angola

Anguilla

Antarctica

Antigua and Barbuda

Armenia

Aruba

Austria

Azerbaijan

Bahamas, The

Bahrain

Bangladesh

Barbados

Belarus

Bolivia

Bosnia and Herzegovina

Botswana

British Indian Ocean Territory

British Virgin Islands

Brunei

Burkina Faso

Burundi

Cambodia

Cameroon

Cayman Islands

Central African Republic

Chad

Christmas Island

Cocos (Keeling) Islands

Comoros

Congo

Congo (DRC)

Cook Islands

Cote D'Ivoire

Cyprus

Czech Republic

Djibouti

Dominica

Equatorial Guinea

Eritrea

Estonia

Eswatini

Ethiopia

Falkland Islands

Faroe Islands

Fiji

French Polynesia

Gabon

Gibraltar

Greenland

Grenada

Guinea

Guinea-Bissau

Guyana

Haiti

India

Indonesia

Iran

Iraq

Isle Of Man

Israel

Jersey

Johnston Atoll

Kazakhstan

Kiribati

Laos

Latvia

Lebanon

Lesotho

Liberia

Libya

Lithuania

Luxembourg

Macau

Madagascar

Malawi

Malaysia

Maldives

Mali

Malta

Marshall Islands

Martinique

Mauritania

Mauritius

Mayotte

Micronesia

Midway Islands

Moldova

Monaco

Mongolia

Montenegro

Montserrat

Morocco

Mozambique

Myanmar

Netherlands Antilles

New Caledonia

North Korea

North Macedonia

Northern Mariana Islands

Oman

Pakistan

Palau

Palestine

Paraguay

Poland

Qatar

Reunion

Rwanda

Saint Helena

Saint Kitts and Nevis

Saint Lucia

Saint Pierre and Miquelon

Saint Vincent and The Grenadines

Samoa

Sao Tome and Principe

Serbia

Seychelles

Sierra Leone

Singapore

Slovakia

Slovenia

Solomon Islands

Somalia

South Africa

South Sudan

Sri Lanka

Sudan

Suriname

Syria

Taiwan

Tajikistan

Tanzania

Thailand

Timor Leste

Timor-Leste

Togo

Tonga

Tunisia

Turkmenistan

Turks and Caicos Islands

Tuvalu

Uganda

United Arab Emirates

Uruguay

Vanuatu

Vietnam

Virgin Islands, U.S.

Wake Island

Wallis and Futuna

Western Sahara