Originally Posted by
davetravels
Check and see if one single ticket is available at the lower miles. Sometimes, only 1 seat is available on a flight at the lower mileage amount, and if you try'n book 2, they both jump to the higher rate.
Good point. Then one can decide whether it's worth a few more miles to be on the same flights versus gambling that both can be moved to the same flights later for low miles.