At my airline, we are paid $2.20 per diem domestically ($2.70 internationally) for every hour that we are on a trip, beginning from the moment we report for duty until we are released from duty back at our home domicile, whether itu2019s a few hours later, or a few days later. Contractually, our per diem increases by five cents every two years.I tend to fly a fairly light schedule, preferring my time off to working constantly. Consequently, I am paid between $500 and $700 in per diem expenses each month. If my schedule is heavier, my per diem is more. If Iu2019m working a very full schedule, flying upwards of six days a week, I may be paid as much as $1400 in per diem for the month.