Are you willing to split your party in case you all dont get on the same plane?

If you dont, consider it very risky...

If you dont really mind taking other plane before or after the person who has a confirmed seat, or even the next day, you will be better than in heaven looking at the rest of passengers who have pay a much larger amount of money that what you have paid, and you will feel a priviledge person.

But I dont think that anyone could answer your question about how full are flights... one day can be wide open, then the next day oversold.

And remember, the worst part has not started yet. At the gate you will see how passengers are boarded and there are many nonrevings waiting for the same chance than you, so be prepared... Even at the most remote flight thay you could think you will be alone there will be staff traveling.

That doesnt mean that it is bad, which it is not at all... I consider nonreving very attractive and exciting...

At the beginning of my employment I did the same, I asked and called months in advance... But I learned that I always changed plans the last two days, because that days you will feel the "real sensation" of how full are flights, and how is weather, and everything... but this is just my opinion.