Cover - shares	3 Months Ended
	Mar. 31, 2026	Apr. 28, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2026
Document Transition Report	false
Entity File Number	001-38626
Entity Registrant Name	Republic Airways Holdings Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	85-0302351
Entity Address, Address Line One	2 Brickyard Lane
Entity Address, City or Town	Carmel
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	46032
City Area Code	317
Local Phone Number	484-6000
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	RJET
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		46,829,476
Entity Central Index Key	0000810332
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1
Amendment Flag	false