0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 0000008 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000009 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - AIRCRAFT link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - OPERATING SEGMENTS link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - BASIS OF PRESENTATION (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - AIRCRAFT (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - OPERATING SEGMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - REVENUE - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - REVENUE - Significant Categories of Operating Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - REVENUE - Operating Revenues by Geographic Region (Details) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - REVENUE - Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - REVENUE - Loyalty Program (Details) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - EARNINGS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - EARNINGS PER SHARE - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - AIRCRAFT - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - AIRCRAFT - Aircraft Fleet (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - AIRCRAFT - Depreciation, Amortization, and Rent Expense on Aircraft (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - DEBT - Credit Facilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - DEBT - Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - DEBT - Long-term Debt Schedule (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - DEBT - Future Maturities of the Outstanding Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - DEBT - Future Maturities of the Outstanding Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - DEBT - Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - INVESTMENTS - Summary of debt securities by major security type (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - FAIR VALUE MEASUREMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - STOCKHOLDERS' EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - OPERATING SEGMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink