Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Mar. 17, 2023	Jun. 30, 2022
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Registrant Name	HARBOR DIVERSIFIED, INC.
Entity Central Index Key	0000899394
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Interactive Data Current	Yes
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity File Number	001-34584
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	13-3697002
Entity Address Address Line1	W6390 Challenger Drive
Entity Address Address Line2	Suite 203
Entity Address City Or Town	Appleton
Entity Address Postal Zip Code	54914-9120
Entity Address State Or Province	WI
City Area Code	920
Local Phone Number	749-4188
Entity Common Stock, Shares Outstanding		44,811,419
Entity Public Float			$ 55.4
ICFR Auditor Attestation Flag	false
Auditor Name	GRANT THORNTON LLP
Auditor Firm ID	248
Auditor Location	Milwaukee, Wisconsin