This fare is super limited and only available for departures starting November 4, which is the airline's inaugural nonstop flight on this route. Departures are available through mid-November but returns are tougher to find. If you are unable to link up a return flight one-way flights for the Orlando to Brasilia route are available for $169, and you can purchase a separate ticket for a return leg or use miles if you happen to have a stocked frequent flyer account.
Other flights to destinations in Brazil like Rio de Janeiro (GIG) for $386 RT and Fortaleza (FOR) for $331 RT can also be purchased from Orlando, the only catch is that it has to be for that early November period.
Searching on the Expedia, seen below, I found seats departing MCO on Sunday, November 4 and returning from BSB on Monday, November 12, 2018.
If Brazil isn't in your travel plans there is a whole list of domestic and worldwide destinations on sale listed on our Orlando (MCO) flight deal page.
Need a place to stay in the Brazilian capital? Here's what's available for the sample dates listed via Hotelwatchdog.