Update: Some offers mentioned below are no longer available. View the current offers here.Airfare deals are typically only available on limited dates. We recommend that you use Google Flights to find dates to fly, then book through an online travel agency, such as Orbitz, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz’s courtesy cancellation if you’re unable to travel. Additionally, keep in mind that discounted partner fares may not earn miles with US-based carriers.If you’re sick of the cold and cloud cover in the Northeast, check out these great deals to the Caribbean. We’re seeing discounted flights available from both Boston (BOS) and New York (JFK) to St. Martin (SXM) both May and June. The cheapest flights available are departing Boston, starting at $312 round-trip, or you can fly from New York starting at $339 round-trip.Airlines: Delta, JetBlueRoutes: BOS and JFK to SXMCost: $312-$339+ round-trip in economyDates: May 2016 through June 2016Elite Mileage Earning: At least 3,362 medallion-qualifying milesFare Class: X (DL)Booking Link: OrbitzPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire Preferred CardSearch for your flight here:Here are a few examples of what you can book:New York (JFK) to St. Martin (SXM) for $339 on Delta (earns 3,362 MQMs):New York (JFK) to St. Martin (SXM) for $339 on Delta.Boston (BOS) to St. Martin (SXM) for $312 on JetBlue:Boston (BOS) to St. Martin (SXM) for $312 on JetBlue.Maximize Your PurchaseSign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Don’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Premier Rewards Gold or Citi Prestige (3x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.H/T: The Flight DealIf you’re able to score one of these tickets, please share the good news in the comments below!