from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun aviation Agreement whereby an airline buys space on another airline and markets the extra space as its own. Often used to increase a route network without the costs of running a full service.
  • verb aviation, transitive, intransitive To buy space on (a flight) in this way.


from Wiktionary, Creative Commons Attribution/Share-Alike License

code +‎ share, because of the change in the flight's two-letter airline identity code. One aircraft will have two or more codes and flight numbers.


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  • "After announcing codeshares -- a type of reciprocal sales arrangement -- and four new routes in October, the carriers are ready to meld schedules and align pricing to tap the full benefits of the alliance, the executive said in the interview on Feb. 4, adding that they'll also begin negotiating joint contracts with corporate clients and travel agents."

    June 24, 2015