| IATA Code | ALW |
| Full Name | Walla Walla Regional Airport |
| City | is also a city code |
| Country | United States |
| Province | Washington |
| Tags | extreme |
| IATA Code | SLL |
| Full Name | Salalah Airport |
| City | is also a city code |
| Country | Oman |
| Province | |
| Tags | extreme |
| IATA Code | NCN |
| Full Name | Chenega Bay Airport |
| City | is also a city code |
| Country | United States |
| Province | Alaska |
| Tags | extreme |