**Exhibit 12.2**

**NORTHWEST AIRLINES CORPORATION**

**(DEBTOR-IN-POSSESSION)**

**COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGESAND PREFERRED STOCK REQUIREMENTS(Dollars in millions)**
| ** **                                                               | ** ** | **Three months ended** | ** ** |
|--------------------------------------------------------------------------|------------|----------------------------------|------------|
| ** **                                                               | ** ** | **March 31**                | ** ** |
| ** **                                                               | ** ** | **2007**                         | ** ** | **2006** | ** ** |
| **Earnings:**                                                            |       |                             |       |   |   |
|                                                                     |       |                             |       |   |   |
| Income (loss) before  income taxes                                       |       | $                                | (292       | ) | $ | (1,104 | ) |
| Less: Income from less  than 50% owned investees                         | ** ** | —                           | ** ** | 1 | ** ** |
| Add:                                                                     |       |                             |       |   |   |
| Rent expense  representative of interest(1)                              |       | 59                               |       | 49 |   |
| Interest expense  net of capitalized interest (2)                        |       | 127                              |       | 136 |   |
| Amortization of  debt discount and expense                               |       | 5                                |       | 2 |   |
| Amortization of  interest capitalized                                    |       | 1                                |       | 2 |   |
|                                                                     |       |                             |       |   |   |
| **Adjusted  earnings (loss)**                                            |       | $                                | (100       | ) | $ | (916 | ) |
|                                                                     |       |                             |       |   |   |
| **Fixed charges and preferred  stock requirements:**                     |       |                             |       |   |   |
|                                                                     |       |                             |       |   |   |
| Rent expense  representative of interest (1)                             |       | $                                | 59         |   | $ | 49 |   |
| Interest expense net of  capitalized interest (2)                        |       | 127                              |       | 136 |   |
| Amortization of debt  discount and expense                               |       | 5                                |       | 2 |   |
| Capitalized interest                                                     |       | 3                                |       | 2 |   |
|                                                                     |       |                             |       |   |   |
| **Fixed  charges and preferred stock requirements**                      |       | $                                | 194        |   | $ | 189 |   |
|                                                                     |       |                             |       |   |   |
| **Ratio of earnings to fixed  charges and preferred stock requirements** |       | —                           | (3)        | — | (3) |

 

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(1)          Calculated as one-third of rentals, which is considered representativeof the interest factor.

(2)          Subsequent to its Chapter 11 filing, the Company recorded post-petitioninterest expense on pre-petition obligations only to the extent it believes theinterest will be paid during the bankruptcy proceeding or that it is probablethat the interest will be an allowed claim.

(3)          Earnings were inadequate to cover fixed charges and preferred stockrequirements by $294 million and $1.1 billion for the three months ended March31, 2007 and 2006, respectively.

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