When we signed up for the Chase deal, we were hoping to use the BA miles to go to Asia. However, with the much devalued Avios, it doesn't seem worth it anymore. So, we will burn the 200K+ points mostly for domestic US and Canada flights. I tried to book 2 tickets CMH-LGA-YUL and YYZ-LGA-CMH. I'm not familiar with BA at all. Here are my questions: 1. The CMH-LGA-YUL looks good to me, with 9000 points + $5 each. However, the YYZ-LGA-CMH, it askd for 9000 points + $57.25. Is that right? I don't understand why there is such a big difference. 2. BA.com only shows 1 YYZ-LGA-CMH option, but AA shows a few. On BA.com, when I tried to book YYZ-LGA and LGA-CMH separately, more options showed up. So, I assume those flights are bookable even though you can only do it separately, not together. In case of irregular ops, I would prefer to have it all in one ticket... if I call BA to put the flights together, will they charge a fee for something that BA.com can't do? Thanks for your help.