[9] After attending the Flyers training camp, Welinski was waived and assigned to AHL affiliate, the Lehigh Valley Phantoms for the 2019–20 season.

[11] Following a lone season within the Flames organization, Welinski left as a free agent and was signed to a one-year, two-way contract with the New York Rangers on July 14, 2022.

[12] After attending the Rangers 2022 training camp, Welinski upon clearing waivers was re-assigned to play in the 2022–23 season with AHL affiliate, the Hartford Wolf Pack.

[14][15] Remaining as a free agent heading into the 2023–24 season, Welinski was belatedly signed to a PTO with the Iowa Wild of the AHL on October 24.

[16] Adding a veteran presence on the Blueline for Iowa, Welinski made 27 appearances posting 3 goals and 10 points, before he concluded his try-out with the club.