I wonder at what point the length of flight requires that the aircraft be outfitted with toilets?

Also very curious as to price point on these TA flights. A ticket to Cancun from the West Coast is one heckuva lot less expensive than a flight to Houston and onto Belize. Depending on pricd point and scheduling this could have a significant impact on the cost and time of getting home to the Caye from the States. It would be great if the Tropic flights meshed reasonably well with an arrival at Cancun so it could still be done in a day. As it is now we leave at 2am to catch an flight to Houston and on to BC arriving home by late afternoon. All of which makes for a long day. Looking forward to another travel option.