**Exhibit 12.1**

 

**NORTHWEST AIRLINES CORPORATION**

 

**COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES**

**(Dollars in millions)**

 
| ** **                                                                                              | ** ** | **Successor**         | ** ** | **Predecessor**       | ** ** |
|---------------------------------------------------------------------------------------------------------|------------|-----------------------|------------|-----------------------|------------|
| ** **                                                                                              | ** ** | **Three Months** | ** ** | **Three Months** | ** ** |
| ** **                                                                                              | ** ** | **Ended**             | ** ** | **Ended**             | ** ** |
| ** **                                                                                              | ** ** | **March 31,**    | ** ** | **March 31,**    | ** ** |
| ** **                                                                                              | ** ** | **2008**              | ** ** | **2007**              | ** ** |
| **Earnings:**                                                                                           |       |                  |       |                  |       |
|                                                                                                    |       |                  |       |                  |       |
| Income (loss)  before income taxes                                                                      | ** ** | **$**                 | **(4,139** | **)**                 | $          | (293 | ) |
|                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| Less:                                                                                                   | ** ** | ** **            | ** ** |                  |       |
| Income from less  than 50% owned investees                                                              | ** ** | **—**            | ** ** | —                |       |
| Capitalized  interest                                                                                   | ** ** | **3**                 | ** ** | 3                     |       |
| Add:                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| Fixed charges,  from below                                                                              | ** ** | **174**               | ** ** | 191                   |       |
| Amortization of  interest capitalized                                                                   | ** ** | **—**            | ** ** | 1                     |       |
|                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| **Adjusted  earnings**                                                                                  | ** ** | **$**                 | **(3,968** | **)**                 | $          | (104 | ) |
|                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| **Fixed  charges:**                                                                                     | ** ** | ** **            | ** ** |                  |       |
|                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| Rent expense  representative of interest (1)                                                            | ** ** | **$**                 | **57**     | ** **            | $          | 59 |   |
| Interest  expensed and capitalized, issuance costs and amortization of debt discounts  and premiums (2) | ** ** | **117**               | ** ** | 132                   |       |
|                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| **Fixed  charges**                                                                                      | ** ** | **$**                 | **174**    | ** **            | $          | 191 |   |
|                                                                                                    | ** ** | ** **            | ** ** |                  |       |
| **Ratio  of earnings to fixed charges**                                                                 | ** ** | **—**            | (3)        | —                | (3)        |

 

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(1)         Calculated asone-third of rentals, which is considered representative of the interestfactor.

 

(2)         Subsequent toits Chapter 11 filing and prior to its emergence, the Company recordedpost-petition interest expense on pre-petition obligations only to the extentit believed the interest would be paid during the bankruptcy proceeding or thatit was probable that the interest would be an allowed claim.

 

(3)         Earnings wereinadequate to cover fixed charges by $4.1 billion and $295 million for thethree months ended March 31, 2008 and 2007, respectively.

 

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