Dig out your flip-flops (and your passport) and prepare to take advantage of one or more of these bargain airfare deals:

• Through June 14, travel to San Juan, Puerto Rico (no passport required for U.S. citizens) at one-way rates of $131.70. This rate is valid seven days a week, based on sale seat availability.

American Airlines offers exclusive bargains to a number of Central American destinations.

• $315.43 San Jose, Costa Rica
• $319.90 Tegucigalpa, Honduras
• $325.40 Panama City, Panama
• $327.03 San Salvador, El Salvador
• $332.90 Managua, Colombia

Back in 2009, National Geographic assembled a panel of 437 well-traveled experts in a variety of fields from historic preservation, site management, geography, sustainable tourism, ecology, indigenous cultures, travel writing and photography, and archaeology.

An extremely rare airfare sale (today only!) gets travelers north to Montreal, Quebec at a round-trip rate of $310.46. This Air Canada exclusive is valid on trips finished on or before April 4, 2013 -- without the hassle of blackout dates. To qualify, give at least a two-week advance notice of travel.

Costa Rica is an adventure playground with laid back beaches, rainforests, active volcanos to colonial cities and cultural sites. The country is about the size of the states of Vermont and New Hampshire combined -- with the Caribbean Sea on the east coast and the North Pacific Ocean on the west.

Who doesn't dream of spending vacation time in Europe? According to AAA, 6,000,000 Americans traveled to Europe in 2008. And according to recent AAA travel surveys, more Americans are not willing to wait for the economy to improve before setting across the pond.

Here's a pair of outstanding airfare deals ideal for summer getaways. But act fast to buy tickets at these rates. These offers have no ticket-by date -- meaning they could vanish within hours. - One-way rates on American Airlines (connecting service through Chicago-O'Hare or New York-LaGuardia) to Montreal, Quebec are $146.

The cost of air travel to America's closest island paradise, Puerto Rico, are currently offered at deep discounts by AirTran and Delta Air Lines.  Both carriers offer daily nonstop flight service to San Juan from Atlanta. An inclusive round-trip rate of $287.

The word 'staycation' was added to the Merriam-Webster's Collegiate Dictionary in 2009. It's a cute term of saying "we-can't-afford-a-flashy-vacation-and-will-see-hometown-sights."  But don't we all need a getaway once in awhile?   Today, where we go is mostly based on affordability.

If you consider yourself a bargain hunter on all things travel -- then you'll quickly recognize the value of these airfare deals to Asia and Europe. Just to prove how outstanding these offers are, I'll show in parenthesis what other carriers are charging.