The issue came up for discussion at the inaugural session of the International Air Transport Association's (IATA) annual general meeting and World Air Transport Summit here, with Qatar Airways CEO Akbar Al Baker urging the IATA members to support liberal air travel, calling protectionism a "threat" to aviation.
Gulf carriers accused their American counterparts of allowing them to fly freely to the US. Baker read out a statement calling upon IATA to safeguard the flying freedoms of airlines.
"It is often described as a rift between state-owned airlines and those owned wholly or predominantly by private shareholders.
"Others see it in terms of government protectionism. Some interpret it as a clash between aviation business friendly countries and those less focused on maximising the economic and social benefits of connectivity," Tyler said while presenting his annual report.
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The matter is of special significance to India, which is the largest market for Qatar Airways, Etihad and Emirates, whose joint share of traffic out of India to the US and Europe is estimated to have quadrupled between 2008 and 2014 -- from over 8 per cent to 35 per cent.
US airlines have already moved their government in a bid to persuade it to amend the 'Open Skies' agreements with Gulf nations, which they claim were distorting competition.