

I'm a newbie in the airmiles game. So pls help me out.
I was looking for Delhi- Rome round trip tickets for 2 passengers. For air india direct economy flights it was showing 25k points+ CA $80 for 2 passengers per leg. That means total should come about 50k points+ CA $160. But in the final page the total is showing from 60k+ CA $1073 to 100k+CA $275. Why is there so much difference? Can anyone explain?