United is launching new 'fifth freedom' flights. Here's how the rare international routes work and why airlines love them.
Briefly

The article highlights the concept of 'fifth-freedom' flying, where airlines can operate routes between two countries other than their home nation. This strategy, governed by international aviation agreements, boosts revenue, aircraft utilization, and enhances connectivity across markets. United Airlines is notably expanding its fifth-freedom routes in Asia, linking Tokyo and Hong Kong to destinations like Mongolia and Thailand. This practice caters to unique and sometimes unexpected international travel combinations, underlining the evolution of global aviation through decades of globalization.
An international agreement allows airlines to fly between two countries other than their home country, providing revenue and connectivity.
United Airlines is expanding its 'fifth-freedom' flying in Asia, particularly via Tokyo and Hong Kong, enhancing market connectivity.
The fifth freedom allows an airline of one nation to carry passengers between two foreign countries, increasing aircraft utilization and capturing new markets.
United Airlines is set to launch new fifth-freedom routes in Asia, improving connectivity and accessibility to less served destinations like Mongolia and Thailand.
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