Woman sunbathing with puppy (Photo: One&;ampOnly Resorts)

With the weather heating up, there's no better time to wave goodbye to winter and say hello to sunny days. Southwest Vacations is offering a Spring into Summer sale, where you can save up to $100 on vacations across the country.

Book a flight-and-hotel vacation package of three or more nights, and save $50 when traveling between March 20 and June 20 and $100 for vacations during June 21 through September 22. You must book by April 7. ... read more»

Train riding along the coast (Photo: iStockphoto/Paul Erickson)

Destinations include California, Illinois, Maryland, New York, and Washington, among others. ... read more»

St. Patrick's Day: Leprechaun Rainbow (Photo: iStcokphoto/minimil)

For some St. Patrick's Day is just like any other day in March, but if you see it as an opportunity to celebrate the Irish and don emerald colors, Red Roof Inn might have you dancing a jig with its St. Patrick's Day Deals.

You can save 15 to 20 percent on rooms across the country, including in cities such as Boston, Philadelphia, Orlando, Seattle, and Washington, D.C. Discounts are valid on stays from March 14 through 20. ... read more»

Cancun, Mexico (Photo: Adalberto Rios Szalay/Sexto Sol)

If you're a get-up-and-go type of traveler, Funjet might have just the motivation you need to pack your bags and hit the road, with its Top 10 April Travel Deals. You can save on packages to Cancun, Riviera Maya, Los Cabos, Puerto Vallarta, and Jamaica.  Prices start at $399 per person (without taxes and fees), and include round-trip airfare and all-inclusive accommodations. Plus, you can get free room upgrades and kids stay free at certain properties. You must book by March 3. ... read more»

<h2>Hiking and Horseback Riding in Costa Rica</h2>

Provider: Gap Adventures

Length: 9 days

Price: $499 + $200 local payment

You could pay a lot more for a Costa Rican adventure, but why should you? The <a href="" target="_blank">Costa Rica Quest</a> is one of the best bargains to the adventure country, offering more time, activities, and inclusions than similarly priced trips.  

This trip includes a horseback tour of the majestic Monteverde cloud forest, which is similar to a rainforest, with much of the moisture coming from the constant clouds above. And, there's still plenty of free time for optional activities like soaking in hot springs, whitewater rafting, swimming, or kayaking.

<strong>Trip Planning</strong>

Guaranteed departures for 2009 leave on September 19, 26, and 30; October 7, 10, 17, 24, 28, and 31; November 4, 7, 11, 14, 18, 21, 25, and 28; and December 2, 5, 9, 12, 16, 18, 19, 20, 21, 23, 26, 28, and 30. Eight nights' accommodations in hotels are included, as is a horseback riding trip in Monteverde and a guided trip through the cloud forest. Additional optional activities include a day of rafting, a cave tour, a volcano hike, a visit to local hot springs, admission to butterfly gardens, canopy zip lines excursions, dolphin watching, surfing lessons, and much more. No meals are included, and a $300 food allowance is recommended. Airfare is also additional.

(Photo: iStockphoto/Cay-Uwe Kulzer)

Shake off the winter by spending five nights in San Jose or Guanacaste for less. ... read more»

Woman relaxing in hammock between two palm trees (Photo: Christian Wheatley/iStockphoto)

While March is preoccupied with whether it feels more like a lion or a lamb, you can plan your escape to someplace sunny. JetBlue is currently offering a March into Spring Sale, with three-night vacation packages starting at $249 per person (without taxes and fees) to warm-weather locales such as Orlando, the Bahamas, Puerto Rico, Jamaica, Las Vegas, and Bermuda. Packages include airfare (departure cities vary) and a three night's stay at a participating hotel. You must book by March 4, and travel by May 31. ... read more»

Iceland's Blue Lagoon geothermal spa (Photo: Blue Lagoon)

If you're feeling a bit spontaneous and want to save a little extra, Icelandair is currently offering $100 off Iceland vacation packages. Only a five-hour flight from northeastern departure cities, Iceland is an ideal getaway. The deal includes customized itineraries, which include airfare, hotel, and tours. You must book by February 28, and travel is valid February through April. ... read more»

Cancun, Mexico (Photo: Adalberto Rios Szalay/Sexto Sol)

Destinations include Cozumel, Los Cabos, and Cancun. Book by February 25. ... read more»

If Mother Nature permits, skiers can take advantage of uncrowded resorts and discounted lift tickets in November and December (before Christmas). For example, at <a href="" target="_blank">Vail Resorts</a> in Colorado, a three-day lift ticket costs $171 for skiing in mid-November, but the same pass jumps in price by nearly $100 starting December 23. To link to the official websites of U.S. ski resorts, search the directory on <a href="" target="_blank">GoSki</a>. 

(Photo: Chris McLennan, Vail Resorts)

Before you bid a fond farewell to winter, you might want to celebrate the season with one last hurrah. And Expedia is making it easy to do just that, by offering up to 30 percent off winter getaways in popular ski and tropical destinations such as Jackson Hole, Aspen, Oahu, Cancun, Dominican Republic, Orlando, Puerto Vallarta, and Breckenridge, among others.

Plus, you can save up to 75 percent off cruises to the Bahamas, Alaska, the Caribbean, Mexico, Hawaii, Europe, and Bermuda. You must book by February 28 and travel by March 31. ... read more»

Athens, Greece (Photo: Index Open)

Win big with Southwest Vacations! Book by March 3. ... read more»