Update: Some offers mentioned below are no longer available. View the current offers here.If you’re toying with the idea of flying JetBlue to the Caribbean or Latin America, the carrier is hoping a new rebate will coax you into booking a ticket on its site. From now through March 31, 2019, you’ll earn a $25 OmniCard Mastercard Reward Virtual Account when you spend $250 or more on your Mastercard to book a JetBlue flight to the Caribbean or Latin America directly on jetblue.com.That final bit is key. This is yet another tactic to get you to book direct rather than through an online travel agency (OTA) such as Expedia, Orbitz or Priceline. Airlines and hotels are forced to pay a commission to those agencies each time someone uses one to book a ticket, so they prefer to cut out the middleman and capture all bookings directly.It’s worth plugging in your ideal dates and destination(s) to make sure a direct booking will be cheapest, factoring in the $25 rebate. The deal does not seem to restrict purchases to The JetBlue Card and JetBlue Plus Card – so long as you’re paying with a Mastercard of any kind, you’re eligible.Still, it pays to consider one of the aforementioned cards if you find yourself on JetBlue fairly often, as purchases with the airline earn 3x on the no annual fee JetBlue card and 6x on the JetBlue Plus card ($99 annual fee).All photos by the author.Sign 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.