My fiancé looked into being a flight attendant. The way they pay is so confusing.
Long story short is there's hundreds of hours of uncompensated time per year that you have to work and get paid dirt until you can get a promotion to a supervisory FA roll on the big airlines.
I was a FA for 7 years, husband is a pilot. I've been in and around the airline industry for over 20 years now. It IS confusing!
Flight attendants and pilots are paid by the "block hour". Which is the time the plane leaves the gate, til it arrives at the gate. So the whole time the pilots & FAs are doing their preflight checks, boarding, deplaning.. all that.. they're not getting paid.
So someone outside the industry sees the new-hire FA payrate at $17/hr and thinks "Damn that's not bad!". But, it's NOT 40 hours a week. Generally a pilot or FA will be paid for 70-80 hours a month. That's working full-time. Gone from home 2-5 days a week. If you bust your *** and are almost never home and work constantly you can do 100 hours a month. I did that, once. Never again. I thought I was going to die and spent about 5 days at home that month. You do get 'per diem' for every hour you're signed in on a trip, it's about $1.50/hr. It's to pay for meals/incidentals. The company pays for hotel rooms but not for your food. You're not paid by the "duty hour", so you can be "on duty" for 14 hours for the day, but you only had 6 hours block time, so you get paid 6 hours for that day, even though you've been on duty for 14. Yep.
As a very rough estimate, you can take that hourly pay rate, call it "thousands", and that's about what you'll make in a year. That's average, and yes it can be more or less depending on how much you work, but I've found it to be a good rough ballpark estimate. (i.e. as a new hire you'll make about $14k/$17k, with a $14-$17/hour payrate.)