Old Apr 4, 09, 4:15 pm
  #2  
mersk862
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Join Date: Aug 2004
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Programs: Marriott Ambassador, UA Premier
Posts: 14,401
Y/B/M for pretty much every flight. Y is full fare, B/M are select fares.

For flights US mainland-Hawaii, Y is full fare, B/M/H/Q/K are select fares.
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