You can also tag your last day off before reserve days, or your first day off after reserve days as VDO. The company can call you on that day if they need you, but you’re under no obligation to accept a trip. If you don’t like the trip they have, or have changed your mind, you can say “no”.

If you VDO your last day off before, say, a 3 day block of reserve days and scheduling calls you on your VDO for a 4 day trip, that entire trip will pay out at 150%. Even over your original reserve days.

As others have said, a short call (picked up or assigned) will pay an extra hour of add pay over guarantee as long as you’re not used. If you get used though, you don’t get the add pay. Field standby, however, will pay 3 hours over guarantee whether you get used or not. So, if you live in base those are the easiest ways to make some extra money. At the captain rates, 3-4 unused short calls each month can add up to some real money without having to do anything except report to the airport faster if needed.