Okay, curiosity got the best of me! Checked out WestJet's website and converted to U.S. funds. Flying non-stop from Toronto to SXM on Thursday, February 6, 2020 and returning one week later (also non-stop) comes to grand total of $972 with all fees and taxes applied. $486 per person, and no connecting flight to have to deal with. Flight on 2/6/2020 leaves at 9:15 a.m. so you might want to drive up the night before rather than deal with Toronto traffic that morning. That's what I would do.