High season runs from mid-December through mid-April; in the off-season, rates at larger resorts may be reduced by up to 40%. Seasonal discounts vary dramatically by resort and by island, with some of the luxury resorts offering specials periodically throughout the year; the most extravagant resorts, however, are always expensive. The small, less-expensive hotels and guesthouses have little or no seasonal variation in their rates. Connecting flights with international airlines Air Canada, American Airlines, Caribbean Airlines, JetBlue, US Airways, United Airlines and WestJet, are available at Barbados, Grenada, Martinique, Puerto Rico, St. Lucia and Trinidad. LIAT provide scheduled services to and from many other islands. Mustique Airways, Grenadines Airways, SVG Air, are available for charter.