Originally Posted by
FlyingExplorer
With United, I have used miles for domestic coach, international first, as well as upgrades from business to first. I'm based in Houston.
On SkyTeam, you can only get IFC award tickets rarely with FB or KE miles, certainly not DL that doesn't offer IFC. Also with DL miles, you get better domestic coach availability if you're a DL elite. As a nonelite on DL, your best bet might be coach or business class international awards, but not being to make free changes puts you at a disadvantage. There are also big fees on some award tickets, which is why I asked from where you would be flying.
AS can make sense, especially if you would also have some stray AA etc. miles to credit somewhere.