Information: - Oman Air serves the following scheduled destinations ( as of December 2015 ) : - The Arab Air Carriers Organization (AACO), headquartered in Beirut, Lebanon, was established in 1965 upon the recommendation of the Transport Committee of the League of Arab States and the endorsement of the Arab transport ministers. - Al-Seeb, As Seeb or As Sib is a coastal fishing city, located several kilometres northwest of Muscat, in northeastern Oman. As of the 2003 census, it had a population of 221,115. - An airline is a company that provides air transport services for traveling passengers and freight. Airlines utilize aircraft to supply these services and may form partnerships or alliances with other airlines for codeshare agreements. Generally, airline companies are recognized with an air operating certificate or license issued by a governmental aviation body. - An air taxi is a small commercial aircraft which makes short flights on demand. - Oman Air is the national airline of Oman. Based on the grounds of Muscat International Airport in Seeb, Muscat, it operates scheduled domestic and international passenger services, as well as regional air taxi and charter flights. Its main base is Muscat International Airport. Oman Air is a member of the Arab Air Carriers Organization. - Oman (; ' ), officially the Sultanate of Oman, is an Arab country on the southeastern coast of the Arabian Peninsula. Holding a strategically important position at the mouth of the Persian Gulf, the nation is bordered by the United Arab Emirates to the northwest, Saudi Arabia to the west, and Yemen to the southwest, and shares marine borders with Iran and Pakistan. The coast is formed by the Arabian Sea on the southeast and the Gulf of Oman on the northeast. The Madha and Musandam exclaves are surrounded by the UAE on their land borders, with the Strait of Hormuz (which it shares with Iran) and Gulf of Oman forming Musandam's coastal boundaries. Given the information above, choose from the list below the object entity that exhibits the relation 'is a list of' with the subject 'oman air destinations'. Choices: - aircraft - airline - airport - city - company - country - gulf - organization
The answer to this question is:
airport