Other hockey leagues in 1979:    
NHL
During the season, an agreement was reached whereby four of the WHA's teams, the Edmonton Oilers, Quebec Nordiques, Winnipeg Jets and New England Whalers would be admitted to the National Hockey League (NHL) as expansion teams for the 1979–80 NHL season, and the WHA would cease operations.
Prelims
Semi-Finals
Finals
NE 2
CIN 1
EDM 4
NE 3
QUE 0
WPG 4
EDM 2
WPG 4
Champ
WPG
1978-79 WHA Champion Winnipeg Jets

Preliminary Round

Best of 3-game series
DateAwayScoreHomeSeries
4/21 Cincinnati 3-5 New England NE 1-0
4/22 New England 3-6 Cincinnati Tied 1-1
4/24 Cincinnati 1-2 New England NE 2-1

Semifinals

Best of 7-game series
DateAwayScoreHomeSeries
4/23 Winnipeg 6-3 Quebec WPG 1-0
4/25 Winnipeg 9-2 Quebec WPG 2-0
4/27 Quebec 5-9 Winnipeg WPG 3-0
4/29 Quebec 2-6 Winnipeg WPG 4-0

Semifinals

Best of 7-game series
DateAwayScoreHomeSeries
4/26 New England 2-6 Edmonton EDM 1-0
4/27 New England 5-9 Edmonton EDM 2-0
4/29 Edmonton 1-4 New England EDM 2-1
5/1 Edmonton 4-5 New England Tied 2-2
5/3 New England 2-5 Edmonton EDM 3-2
5/6 Edmonton 4-8 New England Tied 3-3
5/8 New England 3-6 Edmonton EDM 4-3

WHA Finals

Best of 7-game series
DateAwayScoreHomeSeries
5/11 Winnipeg 3-1 Edmonton WPG 1-0
5/13 Winnipeg 3-2 Edmonton WPG 2-0
5/15 Edmonton 8-3 Winnipeg WPG 2-1
5/16 Edmonton 2-3 Winnipeg WPG 3-1
5/18 Winnipeg 2-10 Edmonton WPG 3-2
5/20 Edmonton 3-7 Winnipeg WPG 4-2