New York Islanders trades
| Tampa Bay Lightning acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Carter Verhaeghe | July 1, 2017 | Kristers Gudlevskis |  |
| Calgary Flames acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Travis Hamonic | June 24, 2017 | 2018 1st round pick | |
| 2019 conditional 4th round pick | 2018 2nd round pick | |||
| 2019 conditional 2nd round pick | ||||
| New York Islanders acquire | Date | Edmonton Oilers acquire | ||
|---|---|---|---|---|
| Jordan Eberle | June 22, 2017 | Ryan Strome |  |
| Vegas Golden Knights acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Jake Bischoff | June 21, 2017 | Expansion draft considerations | |
| Mikhail Grabovski | ||||
| 2017 1st round pick | ||||
| 2019 2nd round pick | ||||
| New York Islanders acquire | Date | Ottawa Senators acquire | ||
|---|---|---|---|---|
| Shane Prince | February 29, 2016 | 2016 3rd round pick |  |
| 2016 7th round pick | ||||
| Colorado Avalanche acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Taylor Beck | February 29, 2016 | Marc-Andre Cliche | |
| Toronto Maple Leafs acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Michael Grabner | September 17, 2015 | Carter Verhaeghe | |
| Christopher Gibson | ||||
| Tom Nilsson | ||||
| Taylor Beck | ||||
| Matthew Finn | ||||
| Edmonton Oilers acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
| Griffin Reinhart | June 26, 2015 | 2015 1st round pick | |
| 2015 2nd round pick | ||||
| New York Islanders acquire | Date | San Jose Sharks acquire | ||
|---|---|---|---|---|
| Tyler Kennedy | March 2, 2015 | 2016 conditional 3rd round pick |  |
| Buffalo Sabres acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Chad Johnson | March 2, 2015 | Michal Neuvirth | |
| 2016 3rd round pick | ||||
| Vancouver Canucks acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Cory Conacher | March 2, 2015 | Dustin Jeffrey | |
| Arizona Coyotes acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | David Leggio | March 2, 2015 | Mark Louis | |
| Vancouver Canucks acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
| Andrey Pedan | November 25, 2014 | Alexandre Mallet | |
| 2016 3rd round pick | ||||
| New York Islanders acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
| Johnny Boychuk | October 4, 2014 | 2015 2nd round pick |  |
| 2016 2nd round pick | ||||
| 2015 conditional 3rd round pick | ||||
| New York Islanders acquire | Date | Chicago Blackhawks acquire | ||
|---|---|---|---|---|
| Nick Leddy | October 4, 2014 | Kent Simpson |  |
| T.J. Brennan | ||||
| Ville Pokka | ||||
| Anders Nilsson | ||||
| New York Islanders acquire | Date | Washington Capitals acquire | ||
|---|---|---|---|---|
| Jaroslav Halak | May 1, 2014 | 2014 4th round pick |  |
| Montreal Canadiens acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Thomas Vanek | March 5, 2014 | Sebastien Collberg | |
| 2014 conditional 5th round pick | 2014 conditional 2nd round pick | |||
| Philadelphia Flyers acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | Andrew MacDonald | March 4, 2014 | 2014 3rd round pick | |
| 2015 2nd round pick | ||||
| Matt Mangene | ||||
| Chicago Blackhawks acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
| Peter Regin | February 6, 2014 | 2014 4th round pick | |
| Pierre-Marc Bouchard | ||||
| New York Islanders acquire | Date | Buffalo Sabres acquire | ||
|---|---|---|---|---|
| Thomas Vanek | October 27, 2013 | 2014 1st round pick | |
| Matt Moulson | ||||
| 2015 2nd round pick | ||||