Hi Catfewd! I asked a related question a little while ago
and there is some info in there that might help.
I even asked that exact question on another forum.
In the end I bought plane tickets on KLM. Probably because we waited a little too long and because we're flying around the holidays it ended up costing about $400 for two tickets. They are two-way but we're just going to use half of 'em. One-way tickets were more than twice as much. crazy.