Originally Posted by YOWgary

OP mentioned YYZ-YYC, so let's go with that as an example. I'm stuck babysitting a client tonight, so let's kill some time:

One-way YYZ-YYC, leaving tomorrow, $595 in Flex, earning 1673 miles, or $1,675 in Lat, earning 2,091.

50 x 1673 = 83,650.
50 x $885 = $44,250.

50 x 2,091 = 104,550
50 x $1675 = $83,750

So, to get to $60K spent, you're looking at about 30 Flex segments and 20 Latitude.

(30 x 1,673) + (20 x 2,091) = 92,010
(30 x $885) + (20 x $1675) = $60,050


Now, if you look at something like YYZ-HKG, the math gets different. Again, next-day departure, Flex is $1,342 / 7,806 AQM, Latitude is $3,200 / 9757.

So, flying Flex, you're going to hit 100K after $18,788; flying Latitude, you'll hit 100K after $44,800.

TL;DR - It's absolutely possible to spend $60K on Flex/Lat fares within North America, and miss SE by a country mile.