Exhibit 12.1

NORTHWEST AIRLINES CORPORATION  COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES  (Dollars in millions)

|                                                             |                                                              | Three Months Ended
June 30 |     | Six Months Ended
June 30
|------------------------------------------------------------ | ------------------------------------------------------------ | -------------------------- | --- | ------------------------
|
|Earnings:                                                    |                                                              |                            |     |                         
|Income before income taxes                                   |                                                              | $                          | (92 | )                       
|Less: Income from less than 50%                              |                                                              |                            |     |                         
|                                                             |                                                              | owned investees            |     |                         
|Add:                                                         |                                                              |                            |     |                         
|                                                             | Rent expense representative of interest(1)                   |                            |     | 59                      
|                                                             | Interest expense net of capitalized interest                 |                            |     | 81                      
|                                                             | Interest of mandatorily redeemable preferred security holder |                            |     | 7                       
|                                                             | Amortization of debt discount and expense                    |                            |     | 2                       
|                                                             | Amortization of interest capitalized                         |                            |     | 1                       
|                                                             |                                                              |                            |     |                         
|                                                             | Adjusted earnings                                            |                            | $   | 45                      
|                                                             |                                                              |                            |     |                         
|Fixed charges:                                               |                                                              |                            |     |                         
|Rent expense representative of interest(1)                   |                                                              | $                          | 59  |                         
|Interest expense net of capitalized interest                 |                                                              |                            | 81  |                         
|Interest of mandatorily redeemable preferred security holder |                                                              |                            | 7   |                         
|Amortization of debt discount and expense                    |                                                              |                            | 2   |                         
|Capitalized interest                                         |                                                              |                            | 9   |                         
|                                                             |                                                              |                            |     |                         
|                                                             | Fixed charges                                                |                            | $   | 158                     
|                                                             |                                                              |                            |     |                         
|Ratio of earnings to fixed charges                           |                                                              |                            |    | (2)                     
|                                                             |                                                              |                            |     |                         

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