Already sick of the cold dreary winter that seems to have no end in sight? US Airways and MasterCard have come to the rescue with a promotion that can save sun seekers up to $300 when reserving their trip through US Airways Vacations and pay with their MasterCard. Travelers can save up to $100 when booking, up to $100 at their destination and can receive a MasterCard gift card valued at $100 after travel has been completed. Vacations must be booked between Jan. 4 and Feb. 1, 2010, for travel occurring between Jan. 4 and June 30, 2010. Customers can save up to $100 now when they book their vacation to the Caribbean, Hawaii and Mexico by using promo code SALE100 (minimum six-night stay required). Vacationers booking via US Airways Vacations at usairwaysvacations.com/sale can receive up to $100 in resort credits at their destination when staying at a participating hotel and resort with partners such as Starwood, Fairmont Hotels and Resorts, Breezes Resorts, Riu Hotels and Resorts, Wynn Las Vegas and more.Travelers wishing to take a vacation closer to home can save $50 on all domestic vacations, excluding Hawaii, by using promo code SALE50 (minimum four-night stay required). The vacation doesnât have to end when the trip is over. Customers who book their travel to select Caribbean destinations (Anguilla, Antigua, Bermuda, Grand Cayman, St. Croix, St. Kitts, St. Lucia, St. Maarten, or Turks and Caicos) and pay using their MasterCard card will receive a MasterCard Gift Card valued at $100. Travelers who book using their MasterCard card to any other destination will receive a MasterCard gift card valued at $50.