hurnik
TUG Member
The danger with that is that the credits (except Southwest) expire in one year. In most cases the credits are also non-transferrable. I usually don't fly a specific airline as it's a combination of money and routing/timing, so if I did that, I'd be stuck with that airline and hoping that they have a price/itinerary that fits.Or book a cheap ticket quarterly with anyone, cancel and bank the credit to combine for a larger trip.
Cheers.