Wandered by QR.com today, local sites for Vietnam and Philippines. Both had "2 for 1" Business Class and "3 for 2" Economy Class sales going to various destinations in Europe and the United States.

SGN to IAD, JFK, IAH worked out to about $2500 per pax for 2 flying J.
HAN to BOS, PHL, IAD, IAH, ORD also about $2500 per pax in J on two-to-go basis.
MNL-ATL was $2450 per pax in J, two-to-go. Other US destinations similar.
CRK-ATL $2100 per pax in J, two-to-go.

All of these are roundtrip. BEST OF ALL for those who plan ahead: Fares good from now through end of schedule-- October 2018.

Didn't check other local sites like Thailand, Malaysia, Indonesia. Maybe more out there.

I took MNL-ATL-vv for May-October 2018. Very good deal at that price.