Diversion airports are airports capable of handling a particular ETOPS rated aircraft during an emergency landing and whose flying distance at the point of emergency shall not exceed the ETOPS diversion period for that aircraft.
Any airport designated as an en route diversion airport must have the facilities to safely support that particular aircraft, and weather conditions at the time of arrival must allow a safe landing with an engine and/or systems malfunctioning.
An ETOPS/LROPS flight may be conducted solely if the diversion airports are available throughout the length of the flight. Unavailability due to bad weather, for example, might require an inflight rerouting.
Common diversion airports on Atlantic routes:
Bangor International Airport
Gander Airport
CFB Goose Bay
Halifax Stanfield International Airport
Keflavík International Airport
Shannon Airport
Bermuda Airport
Lajes Airport (Azores)
Santa Maria Airport (Azores)
Lisbon Humberto Delgado Airport
Gran Canaria Airport (Las Palmas)
Tenerife-North Airport
Tenerife-South Airport
Amílcar Cabral International Airport (Sal Island, Cape Verde)
RAF Ascension Island
Fernando de Noronha Airport
Greater Natal International Airport
Fortaleza International Airport
Recife International Airport
Cayenne-Félix Eboué Airport
Pointe-à-Pitre International Airport
Common diversion airports on Pacific routes:
Henderson Field (Midway Atoll)
Mataveri International Airport (Easter Island)
Cassidy International Airport (Christmas Island, Kiribati)
Faa'a International Airport (Papeete, Tahiti)
Wake Island Airfield
Majuro International Airport
Kwajalein Airport
King Salmon Airport (Alaska)
Eareckson Air Station (Shemya, Aleutian Islands, Alaska)