Domestic:
Y class: 0.004683 cents per mile
F/C class: 0.011383
S class: 0.014577

Hawaii:
Y class: 0.002985
F/C class: 0.006031
S class: 0.006031

International:
Y class: 0.005188
F/C class: 0.011191
S class: 0.015077

Also add in cost of base fare, fees, and taxes...