Pilot T.J. Turner has visited (landed in) a total of 103 countries but have 137 countries yet to explore.
Albania
American Samoa
Angola
Anguilla
Armenia
Aruba
Azerbaijan
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Benin
Bosnia and Herzegovina
British Indian Ocean Territory
British Virgin Islands
Bulgaria
Burkina Faso
Burundi
Cameroon
Cape Verde
Cayman Islands
Central African Republic
Chad
Christmas Island
Cocos (Keeling) Islands
Comoros
Congo
Cook Islands
Czech Republic
Djibouti
Dominica
Dominican Republic
Ecuador
El Salvador
Equatorial Guinea
Fiji
French Guiana
French Polynesia
Gabon
Gambia
Ghana
Grenada
Guadeloupe
Guatemala
Guinea
Guinea-Bissau
Guyana
Honduras
Hungary
Isle Of Man
Jamaica
Jersey
Johnston Atoll
Jordan
Kazakhstan
Kiribati
Liberia
Libya
Libyan Arab Jamahiriya
Lithuania
Mali
Marshall Islands
Martinique
Mauritania
Mauritius
Midway Islands
Moldova
Monaco
Montenegro
Morocco
Mozambique
Nauru
Nepal
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Macedonia
Northern Mariana Islands
Palestine
Papua New Guinea
Poland
Puerto Rico
Qatar
Rwanda
Saint Helena
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and The Grenadines
Sao Tome and Principe
Serbia
Sierra Leone
Slovakia
Slovenia
Solomon Islands
Somalia
South Korea
South Sudan
Sri Lanka
Sudan
Suriname
Syria
Tajikistan
Timor Leste
Timor-Leste
Togo
Tonga
Trinidad and Tobago
Tunisia
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Uruguay
Uzbekistan
Virgin Islands, U.S.
Wake Island
Wallis and Futuna
Western Sahara
Yemen