0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheet link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheet (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statement of Income link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statement of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statement of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statement of Stockholder's Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Consolidated Statement of Stockholders' Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Consolidated Statement of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - NEW ACCOUNTING PRONOUNCEMENTS AND ACCOUNTING CHANGES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - NET INCOME PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - FINANCING ACTIVITIES link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - COMMON STOCK link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - STOCK PLANS link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - EMPLOYEE RETIREMENT PLANS link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - RESTRUCTURING link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - NET INCOME PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - FINANCING ACTIVITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - STOCK PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - EMPLOYEE RETIREMENT PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Change in Accounting Estimate (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - NET INCOME PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - NET INCOME PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - COMMITMENTS AND CONTINGENCIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - COMMITMENTS AND CONTINGENCIES - Summary of Capital Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - REVENUE - Passenger Revenue Breakout (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - REVENUE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - REVENUE - Air Traffic Liability Breakout (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - REVENUE - Air Traffic Liability - Loyalty Program Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - REVENUE - Air Traffic Liability Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - FINANCING ACTIVITIES - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - FINANCING ACTIVITIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - FINANCING ACTIVITIES - Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - FINANCING ACTIVITIES - Maturity of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - LEASES - Related Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - LEASES - Components of Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - LEASES - Supplemental Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - LEASES - Maturity of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - LEASES - Maturity of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - LEASES - Other Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - COMMON STOCK (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - STOCK PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - STOCK PLANS - Schedule of All Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - STOCK PLANS - Employee Stock Purchase Plan Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - Schedule of Fair Values by Balance Sheet Location (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - Offsetting of Derivative Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - Offsetting Derivative Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - Schedule of Location and Amount Recognized in Income by Hedging Relationship (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - (Gain) Loss by Hedging Relationship (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - FINANCIAL DERIVATIVE INSTRUMENTS - Premium Expense (Benefit) for Fuel Derivative Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - FAIR VALUE MEASUREMENTS - Fair Value Assets and Liabilities Measured on Recurring Basis with Unobservable Inputs (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - FAIR VALUE MEASUREMENTS - Carrying and Estimated Fair Value of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of AOCI Components (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassifications (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - EMPLOYEE RETIREMENT PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - EMPLOYEE RETIREMENT PLANS - Postretirement Benefit Plans (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - INCOME TAXES - Schedule of Components of the Income Tax Provision (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - INCOME TAXES - Schedule of Income Tax Provision Reconciliation To Federal Income Tax Statutory Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - INCOME TAXES - Cash Paid for Income Taxes (Net of Refunds) (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION - Accounts and Other Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION - Other Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION - Accounts Payable (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION - Accrued Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - SUPPLEMENTAL FINANCIAL INFORMATION - Other Non-Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - RESTRUCTURING (Details) link:presentationLink link:calculationLink link:definitionLink