Pilot Wayne Prefontaine has visited (landed in) a total of 80 countries but have 159 countries yet to explore.

Albania

American Samoa

Angola

Anguilla

Antarctica

Antigua and Barbuda

Armenia

Aruba

Bahrain

Bangladesh

Barbados

Belarus

Bolivia

Bosnia and Herzegovina

Botswana

British Indian Ocean Territory

British Virgin Islands

Brunei

Bulgaria

Burkina Faso

Burundi

Cambodia

Cameroon

Cape Verde

Cayman Islands

Central African Republic

Chad

Christmas Island

Cocos (Keeling) Islands

Comoros

Congo

Congo (DRC)

Cook Islands

Cote D'Ivoire

Cuba

Djibouti

Dominica

El Salvador

Equatorial Guinea

Eritrea

Estonia

Eswatini

Ethiopia

Falkland Islands

Faroe Islands

Fiji

French Guiana

French Polynesia

Gabon

Ghana

Greenland

Grenada

Guadeloupe

Guam

Guatemala

Guernsey

Guyana

Haiti

Hungary

Indonesia

Iran

Israel

Jersey

Johnston Atoll

Kazakhstan

Kenya

Kiribati

Laos

Latvia

Lebanon

Lesotho

Liberia

Libya

Lithuania

Luxembourg

Macau

Malawi

Maldives

Marshall Islands

Martinique

Mauritius

Mayotte

Micronesia

Midway Islands

Moldova

Monaco

Mongolia

Montenegro

Montserrat

Mozambique

Myanmar

Nauru

Nepal

New Caledonia

Nicaragua

Niger

Nigeria

Niue

Norfolk Island

North Korea

North Macedonia

Northern Mariana Islands

Oman

Pakistan

Palau

Palestine

Panama

Paraguay

Philippines

Qatar

Reunion

Romania

Russia

Rwanda

Saint Helena

Saint Kitts and Nevis

Saint Lucia

Saint Pierre and Miquelon

Saint Vincent and The Grenadines

Samoa

Sao Tome and Principe

Seychelles

Singapore

Slovakia

Slovenia

Solomon Islands

Somalia

Sri Lanka

Suriname

Syria

Tajikistan

Tanzania

Thailand

Timor Leste

Timor-Leste

Togo

Tonga

Tunisia

Turkmenistan

Turks and Caicos Islands

Tuvalu

Uganda

Ukraine

Uruguay

Uzbekistan

Vanuatu

Venezuela

Virgin Islands, U.S.

Wake Island

Wallis and Futuna