I need guidance in finding award flights; 4 bz class in July or august for 2-3 week trip. I found tix on aeroplan 77.5/one way which I originally planned on transferring mine and spouses AMEX. However, I do not have enough miles. It would required total of 620k. I would ideally burn my united or AA miles, too.

any ideas?

me:
Amex: 326k
Chase UR: 375k
united: 30k
AA: 82k


spouse
Amex: 213k

thanks!