Airliner Seat Cost vs Trip Cost
data from <a rel="nofollow" class="external text" href="https://www.icao.int/Meetings/LiberalizationSymposium/Documents/2008-Symposium-Nigeria/AirlineStatistics_BestPractices.pdf">Airline Statistics information</a>, ICAO, 28 April 2008
<a href="//commons.wikimedia.org/wiki/User:Marc_Lacoste" title="User:Marc Lacoste">Marc Lacoste</a>
CC BY-SA 3.0
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<b>Previously published:</b> <a rel="nofollow" class="external free" href="https://plot.ly/~marc.lacoste/8">https://plot.ly/~marc.lacoste/8</a>