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 Calculating Casm
 Caymanair From Cayman Islands, joined Apr 2004, 856 posts, RR: 0Posted Fri Jun 4 2004 19:47:05 UTC (11 years 1 month 1 day 21 hours ago) and read 2463 times:

 Hi all, Sorry if this sounds a bit stupid, but how do you calculate CASM exactly? Im really curious. Thanks! --Donovon
 Dynkrisolo From United States of America, joined Feb 2001, 1875 posts, RR: 7 Reply 1, posted Fri Jun 4 2004 19:49:39 UTC (11 years 1 month 1 day 21 hours ago) and read 2453 times:

 CASM = total cost / Sum_of_all_flights(seats * miles)[Edited 2004-06-04 19:51:28]
 Caymanair From Cayman Islands, joined Apr 2004, 856 posts, RR: 0 Reply 2, posted Fri Jun 4 2004 19:56:48 UTC (11 years 1 month 1 day 21 hours ago) and read 2433 times:

 so I take the total cost of all flights flown, divide by the amount of flights carried out then multiply the total amount of seats these flights offered by the total miles flown? I think i got it. did i do anything wrong?
 Dynkrisolo From United States of America, joined Feb 2001, 1875 posts, RR: 7 Reply 3, posted Fri Jun 4 2004 20:11:04 UTC (11 years 1 month 1 day 21 hours ago) and read 2421 times:

 I don't know if you noticed that I edited what I wrote. In essence, you got it. But to be absolutely sure that I didn't mislead you, the denominator should be the sum of seat-miles for each flight. And seat-miles for each flight is number of seats of the aircraft times the number of miles flown for the particular flight.
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