I've done some searching and don't see anything posted in the past few years. It seems like DL doesn't have many routes available on VN. I can book SGN-ICN on VN, using skymiles, but I can't find other routes like SAI-LPQ, LPQ-HAN, HAN-SGN on any day/any month. I managed to use some Flying Blue miles LPQ-HAN.

DL.com doesn't have SAI loaded... only REP, which is closed. Calling in yielded nothing, whether I use skymiles or am willing to pay with cash money.

Does anyone have any ideas or suggestions for using Skymiles? (Yes, the tickets are inexpensive, etc. I understand that...)