The Montreal Canadiens have lost the fewest games by a team with 46+ games played in a season, with 5 losses in 1943-44.

NHL team with least losses in 46 or more games flat in a season

	TEAM	L	GP	SEASON	W	T	OTL	PTS	PTS%	SOW	SOL	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Canadiens	5	50	1943-44	38	7		83	.830			234	109	125
2	Blackhawks	7	48	2012-13	36		5	77	.802	6	5	149	97	52	16.7	87.2	31.13	10.0	26.21	.923
3	Canadiens	8	80	1976-77	60	12		132	.825			387	171	216			35.19	13.7	25.63	.917
4	Canadiens	8	50	1944-45	38	4		80	.800			228	121	107
5	Bruins	8	48	1940-41	27	13		67	.698			168	102	66
6	Canadiens	10	80	1977-78	59	11		129	.806			359	183	176	31.9	81.0	32.76	13.7	25.94	.912
7	Canadiens	10	78	1972-73	52	16		120	.769			329	184	145			32.01	13.2	29.92	.921
8	Bruins	10	48	1938-39	36	2		74	.771			156	76	80
9	Red Wings	11	48	1994-95	33	4		70	.729			180	117	63	24.2	86.4	32.73	11.5	25.13	.903
10	Canadiens	11	80	1975-76	58	11		127	.794			337	174	163			34.16	12.3	27.38	.921
11	Rangers	11	48	1939-40	27	10		64	.667			136	77	59
12	Bruins	11	48	1937-38	30	7		67	.698			142	89	53
13	Bruins	12	82	2022-23	65		5	135	.823	4	3	301	174	127	22.2	87.3	32.98	11.1	29.84	.929
14	Hurricanes	12	56	2020-21	36		8	80	.714	4	2	175	134	41	25.6	85.2	32.04	9.8	28.25	.915
15	Penguins	12	48	2012-13	36		0	72	.750	3	0	162	119	43	24.7	79.6	29.96	11.3	29.23	.915
16	Ducks	12	48	2012-13	30		6	66	.688	6	3	134	115	19	21.5	81.5	28.06	9.9	27.92	.914
17	Flyers	12	80	1979-80	48	20		116	.725			327	254	73	16.2	78.8	33.81	12.1	27.70	.885
18	Bruins	12	48	1939-40	31	5		67	.698			170	98	72
19	Avalanche	13	56	2020-21	39		4	82	.732	0	1	197	132	65	22.7	83.1	34.59	10.2	25.41	.907
20	Red Wings	13	82	1995-96	62	7		131	.799			325	181	144	21.3	88.3	32.29	12.3	24.17	.909
21	Nordiques	13	48	1994-95	30	5		65	.677			185	134	51	24.2	81.3	30.17	12.8	30.31	.908
22	Flyers	13	80	1975-76	51	16		118	.738			348	209	139			37.46	11.6	27.78	.906
23	Bruins	13	78	1971-72	54	11		119	.763			330	204	126			33.76	12.5	29.12	.910
24	Red Wings	13	70	1950-51	44	13		101	.721			236	139	97
25	Maple Leafs	13	48	1933-34	26	9		61	.635			174	119	55