If you're flying with checked luggage, your next JetBlue trip is about to get pricier.JetBlue told Business Insider in a statement on Monday that it implemented fee changes after "careful consideration.""As we experience rising operating costs, we regularly evaluate how to manage those costs while keeping base fares competitive and continuing to invest in the experience our customers value," said a spokesperson for JetBlue."Adjusting fees for optional services used by select customers, such as checked baggage, allows us to continue offering more competitive fares while delivering the onboard experience our customers love," the spokesperson added, "Including complimentary snacks and drinks, unlimited, high-speed WiFi, and seatback entertainment screens."According to JetBlue's website, the price of a first checked bag for a domestic flight is now $39 for non-peak days and $49 for peak travel days, up from a base of $35 for non-peak and $40 for peak travel days.Travelers with a co-branded JetBlue credit card and membership status who have been receiving free checked bag benefits will not be charged, according to JetBlue.JetBlue did not explicitly cite fuel prices as the reason for increasing bag fees.....