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definitions

air mile

noun
  1. international nautical mile.

Origin of air mile

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for air miles

Air Miles

pl n
  1. points awarded by certain companies to purchasers of flight tickets and some other products that may be used to pay for other flights

air mile

noun
  1. another name for nautical mile (def. 1)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012