Kammala jumla mai zuwa: A matsayin mai ba da izinin kyauta ba tare da izini ba, 'yancin Halák sun yi ciniki da Capitals zuwa New York Islanders a ranar 1 ga Mayu 2014 don zagaye na hudu a cikin
Tsarin shekarar 2014. A ranar 22 ga Mayu, 2014, 'yan tsibirin sun sanya hannu a kan kwangilar shekaru hudu na dala miliyan 18. A ranar 4 ga Disamba, 2014, 'yan tsibirin sun ci Ottawa Senators, tare da Halák ya sami nasararsa ta 11 a jere kuma ya kafa rikodin kamfani wanda Billy Smith ya riƙe a baya, wanda ya ci wasanni 10 a jere. A ranar 15 ga Janairu, 2015, an kira shi zuwa 2015 NHL All Star Game a matsayin maye gurbin rauni ga mai tsaron raga na Nashville Predators Pekka Rinne, wanda ya nuna bayyanarsa ta farko a NHL All-Star. A wasan, ya taka leda a tawagar da Jonathan Toews na Chicago Blackhawks ya jagoranci kuma ya dakatar da harbi shida daga cikin goma a cikin lokaci na uku yayin da shi, abokin wasan Islanders John Tavares, da Team Toews suka lashe wasan ta hanyar rikodin rikodin 17<unk>12. A ranar 19 ga Fabrairun 2015, ya daidaita rikodin ikon mallakar Islanders don mafi yawan nasara a cikin kakar wasa, tare da nasararsa ta 32 da ta zo a cikin nasara 5<unk>2 a kan Predators. Kwana takwas bayan haka a ranar 27 ga Fabrairu, ya kafa sabon rikodin mallaka ta hanyar yin rikodin nasararsa ta 33 a kakar wasa ta 2 da 1 a kan Calgary Flames.