Originally Posted by magsmeplease

I have a flight from LGA to YYC with a connection in YYZ.

I've noticed on the LGA to YYZ portion I am listed as Economy (X) and the second leg from YYZ to YYC the fare is listed as Business (I).

Is this a true business class booking, will I have any advantages such as lounge access with a booking like this?

The entire flight was booked using my MilagePlus miles.