Deals also include $49 one-way domestic flights and flights to Central America and Mexico for under $100 one-way.
Nassau in the Bahamas.
Credit: Lola Damonte/Getty Images

Three major airlines are having flight sales that'll make your next getaway a steal.

Southwest has $49 one-way domestic flights, and is also offering cheap flights to Grand Cayman (starting at $59 one-way depending on your point of origin), Belize City ($69), Providenciales ($74), Cancun ($96), and Havana ($99).

To take advantage of the sale, you'll need to book on Southwest by June 22. Travel dates are available from August through December.

JetBlue is also offering cheap domestic flights starting at $49 one-way. For a Caribbean getaway, flights from Fort Lauderdale start at $69 to Aguadilla, $74 to Nassau, and $78 to San Juan.

There are also $99 one-way flights from Tampa to San Juan, $126 one-way flights from Orlando to Cancun, $129 one-way flights from Newark to San Juan, and $228 one-way flights from Boston to Aruba. The deals are available on select dates from July to mid-October.

And finally, Alaska Airlines has $49 one-way domestic flights and international deals from Los Angeles, like $99 one-way flights to Los Cabos and $199 one-way flights to Costa Rica.

Alaska’s sale goes through June 21, with travel available from September to November.