A seven-night trip in April costs from £3,240 per person sharing a cabin, all inclusive.
Rates range from $389 a person in double occupancy for a three-night trip to $1,445 for a seven-night trip.
A seven-night trip with a stay at the Flamingo costs $499.
A seven-night trip in January, $1,399 goes to London and then Amsterdam.
(020 8747 8315; www.journeylatinamerica.co.uk) has a seven-night trip to Uruguay from £1,190 per person, assuming two people sharing.
That brings the starting fare for the seven-night trip to $1,445.
A seven-night guided trip that includes the glens and Giant's Causeway, with three dinners, is $717.
The seven-night trip, leaving March 25, has other events and tours scheduled.
The seven-night trips start in January.
The seven-night trip includes six days of swimming with the dolphins, photographing them and recording behavior.