Financing Arrangements - Summary of Total Debt Due to Unrelated Parties (Parenthetical) (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Note Payable to Bank, Fixed Interest Rate of 4.65%, Due November 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	4.65%	4.65%
Maturity date	Nov. 30, 2025	Nov. 30, 2025
Note Payable to a Financing Company, Fixed Interest Rate of 5.49%, Due December 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	5.49%	5.49%
Maturity date	Dec. 31, 2026	Dec. 31, 2026
Notes Payable to Clarus Capital, Fixed Interest Rate of 8.66%, Due April, June and September 2027 \| Maturity One
Debt Instrument [Line Items]
Interest rate, stated percentage	8.66%	8.66%
Maturity date	Apr. 30, 2027	Apr. 30, 2027
Notes Payable to Clarus Capital, Fixed Interest Rate of 8.66%, Due April, June and September 2027 \| Maturity Two
Debt Instrument [Line Items]
Interest rate, stated percentage	8.66%	8.66%
Maturity date	Jun. 30, 2027	Jun. 30, 2027
Notes Payable to Clarus Capital, Fixed Interest Rate of 8.66%, Due April, June and September 2027 \| Maturity Three
Debt Instrument [Line Items]
Interest rate, stated percentage	8.66%	8.66%
Maturity date	Sep. 30, 2027	Sep. 30, 2027
Note Payable To Skywest Fixed Interest Rate of 4%, Due April 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%	4.00%
Maturity date	Apr. 30, 2028	Apr. 30, 2028
Comvest Credit Agreement, floating interest rate of SOFR + 5%, due November 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	5.00%	5.00%
Maturity date	Nov. 30, 2028	Nov. 30, 2028
Note Payable to Tecnam, Fixed Interest Rate of 6.75%, Due July and August 2032 \| Maturity One
Debt Instrument [Line Items]
Interest rate, stated percentage	6.75%	6.75%
Maturity date	Jul. 31, 2032	Jul. 31, 2032
Note Payable to Tecnam, Fixed Interest Rate of 6.75%, Due July and August 2032 \| Maturity Two
Debt Instrument [Line Items]
Interest rate, stated percentage	6.75%	6.75%
Maturity date	Aug. 30, 2032	Aug. 30, 2032

SURF AIR MOBILITY INC. 10-Q