1) Aside from the airline-branded ones, how do you figure out which airlines will honor which cards' points? For example, the CapitalOne VentureOne credit card materials say "over 12 leading travel loyalty programs" but I can't for the life of me find out which ones those are.
I have the card. I usually just buy great cash fares when I see them (air, hotel, uber - anything) then "erase" the purchase, but there are 14 or 15 transfer partners:
Aeromexico - Club Premier
1000 Capital One Miles = 750 Premier Points
Air Canada - Aeroplan
1000 Capital One Miles = 750 Aeroplan Miles
Air France KLM - Flying Blue
1000 Capital One Miles = 750 Flying Blue Miles
Alitalia - MilleMiglia Program
1000 Capital One Miles = 750 MilleMiglia miles
Asia Miles
1000 Capital One Miles = 750 Asia Miles
Avianca LifeMiles
1000 Capital One Miles = 750 LifeMiles
Emirates - Emirates Skywards
1000 Capital One Miles = 500 Skywards Miles
Etihad Airways - Etihad Guest
1000 Capital One Miles = 750 Etihad Guest Miles
EVA Air - Infinity MileageLands
1000 Capital One Miles = 750 Infinity MileageLands Miles
Finnair - Finnair Plus
1000 Capital One Miles = 750 Finnair Plus Award Points
Hainan Airlines - Fortune Wings Club
1000 Capital One Miles = 750 Fortune Wings Club Points
JetBlue - TrueBlue
1000 Capital One Miles = 500 TrueBlue points
Qantas - Qantas Frequent Flyer
1000 Capital One Miles = 750 Qantas Points
Qatar Airways - Privilege Club
1000 Capital One Miles = 750 Qmiles
Singapore Airlines - KrisFlyer
1000 Capital One Miles = 500 KrisFlyer miles