United has round-trip flights from San Antonio (SAT) to Guatemala City (GUA) for $365 with a connection. Flights March to January. Weekends available.
A negative COVID test result is required for entry/exit.
Change fees are waived, but United’s “Basic Economy” fares do not include a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding.