Here are travel bargains around the globe, by land, sea, and air. Deals sell out quickly and are not guaranteed to be available. Restrictions such as day of travel, blackout dates, and advance-purchase requirements may apply.

Land

Megabus, the low-fare bus company, is giving away 200,000 free seats for travel in the United States and to Toronto, based on availability.

Routes from Philadelphia include Pittsburgh, New York, Washington, Buffalo, Cleveland, and Detroit. Travel Jan. 4-March 1. Book at www.megabus.com, using promo code GOFREE. Service charge of 50 cents is additional.

NYC and Co. is kicking off its Signature Collection Third Night promotion in New York City. Stay two consecutive nights at any of 20 Signature Collection hotels and receive a free third night, plus a Key to Madison Avenue card, an access pass to 70 special offers at boutiques, spas, restaurants, and art galleries. Prices vary by property and date. For example, in mid-January, three nights in a premier room at the Mandarin Oriental with a Hudson River view costs $1,832, with taxes - a savings of $916. Other hotels include the Jumeirah Essex House, the Hotel Plaza Athenee New York, and Ritz-Carltons in Battery Park and Central Park. For the Oriental: 212-805-8800, www.mandarinoriental.com/newyork; use promo code TNW12.

Restrictions on room type may apply. Valid Jan. 2-Feb. 29. For deal info and hotels: www.nycgo.com/thirdnight.

Watch the whale migration from Kaanapali Beach Hotel and save at least $175. The Whale Encounter package costs $1,574 double, with taxes, and includes four nights in an ocean-view room, daily compact rental car, daily breakfast, whale-watching tour, two bottles of water per day, two beach towels, picnic lunch with backpack, and one-day rental umbrella and chaise longues. By comparison, four nights in an ocean-view room is more than $900. Book by April 1; travel by April 8. Info: 800-262-8450, www.kbhmaui.com.

Rosewood Hotels & Resorts is offering free nights at its properties in the United States, Mexico, the Caribbean, Bermuda, and Canada. For example, stay three nights at the Rosewood San Miguel de Allende in Mexico and get a fourth night free. Rates start at $295 per night double, plus $82.60 in taxes. With the deal, a four-night stay comes to $1,133, compared with the usual $1,510. For all deals, stay Jan. 2-May 31. Info: 888-767-3966, www.rosewoodhotels.com/more.

Sea

International Expeditions is offering a $1,000 discount on the March 30 departure of its Galapagos Voyage. Price after discount starts at $4,098 per person double. The seven-night trip aboard the 32-passenger Evolution includes a seven-night cruise; daily naturalist-guided excursions including hiking, swimming, and snorkeling; two nights at Hotel Oro Verde in Guayaquil, Ecuador; most meals; transfers; and taxes. In-country airfare of $441, which must be purchased through International Expeditions, and the $110 Galapagos National Park entry fee are extra. International air to Guayaquil is extra. Info: 800-234-9620, www.ietravel.com.

Crystal is offering up to $1,000 per person in discounts, plus free airfare and other perks, on select 2011 and 2012 cruises if you book by the end of the year. Deals vary by itinerary and date. For instance, on the 10-day sailing from Miami to Lisbon on March 19, the cost of $2,360 per person double (down from $3,360) includes air from Philadelphia to Miami and from Lisbon to Philadelphia. Add $335 per person in taxes. Book by Dec. 31. Info: 888-722-0021, www.crystalcruises.com.

Air

Qantas has sale fares on nonstop flights from Los Angeles to Sydney, Brisbane, Melbourne and other Australian cities, with round-trip fares starting at $1,298, not including taxes. Depart May 1-June 8 or July 24-Sept. 21. Total round-trip fare, including taxes, comes to $1,453. Book by Dec. 27. Other airlines are matching. Info: 800-227-4500, www.qantas.com.au.

Packages

Troy Tours is offering a five-night package to Istanbul and Cappadocia for $1,149 per person double, plus $112 tax. Trip includes round-trip airfare from Dulles International and flights between Istanbul and Cappadocia; two nights at the Gamirasu Cave Hotel in Cappadocia; three nights at Hotellino Istanbul; daily breakfasts; round-trip air transfers in Cappadocia; arrival transfer in Istanbul; and a private full-day Cappadocia Valley tour, including lunch. Priced separately, the trip would cost at least $1,684, for a savings of $423 per person. Available for Wednesday and Saturday departures, January through March. Info: 800-748-6878, www.troytours.com.

With Sceptre Tours, take a six-day trip to Paris for $1,294 per person double, including taxes - a savings of $100 to $200 per person if you travel before March. The deal includes round-trip air from Philadelphia to Charles de Gaulle, five nights in the three-star Art Hotel Congres, and daily breakfast. Book by Jan. 12; depart Tuesdays, Wednesdays or Fridays, Dec. 6-Feb. 29. Trip is offered through March 31 at slightly higher rates. Info: 800-221-0924, www.sceptretours.com/vacations/paris-vacation-package-pr.

Prices were verified at press time, but deals sell out and availability is not guaranteed. Restrictions such as blackout dates and advance purchase may apply.