**Exhibit 12.1**

 

**NORTHWEST AIRLINESCORPORATION**

 

**COMPUTATION OF RATIOOF EARNINGS TO FIXED CHARGES**

**(Dollars inmillions)**

 

 
| ** **                                                                                              |       | **Successor**                                       |       |
|---------------------------------------------------------------------------------------------------------|------------|-----------------------------------------------------|------------|
| ** **                                                                                              |       | **Three Months Ended  September 30** |       |
| ** **                                                                                              |       | **2008**                                            |       |   | **2007** |   |
| **Earnings:**                                                                                           |       |                                                |       |   |   |   |
|                                                                                                    |       |                                                |       |   |   |   |
| Income  (loss) before income taxes                                                                      | ** ** | ** $**                                         | **(314**   | **)** | ** ** |  $ | 405 |   |
|                                                                                                    |       |                                                | ** ** | ** ** |   |   |
| Less:                                                                                                   |       |                                                | ** ** | ** ** |   |   |
| Income from  less than 50% owned investees                                                              | ** ** | **–**                                          | ** ** | ** ** | 1 |   |
| Capitalized  interest                                                                                   | ** ** | **3**                                               | ** ** | ** ** | 3 |   |
| Add:                                                                                                    |       |                                                | ** ** | ** ** |   |   |
| Fixed  charges from below                                                                               | ** ** | **174**                                             | ** ** | ** ** | 167 |   |
| Amortization  of interest capitalized                                                                   | ** ** | **–**                                          | ** ** | ** ** | – |   |
|                                                                                                    |       |                                                | ** ** | ** ** |   |   |
| **Adjusted earnings**                                                                                   | ** ** | ** $**                                         | **(143**   | **)** | ** ** |  $ | 568 |   |
|                                                                                                    |       |                                                | ** ** | ** ** |   |   |
| **Fixed charges:**                                                                                      |       |                                                | ** ** | ** ** |   |   |
|                                                                                                    |       |                                                | ** ** | ** ** |   |   |
| Rent  expense representative of interest (1)                                                            | ** ** | ** $**                                         | **58**     | ** ** | ** ** |  $ | 57 |   |
| Interest  expensed and capitalized, issuance costs and  amortization of debt discounts and premiums (2) | ** ** | **116**                                             | ** ** | ** ** | 110 |   |
|                                                                                                    |       |                                                | ** ** | ** ** |   |   |
| **Fixed charges**                                                                                       | ** ** | ** $**                                         | **174**    | ** ** | ** ** |  $ | 167 |   |
|                                                                                                    |       |                                                |       |   |   |   |
|                                                                                                    |       |                                                |       |   |   |   |
| **Ratio of earnings to fixed charges**                                                                  | ** ** | **--**                                              |       |  (3) | 3.40 |   |

 

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

 

(2)   Subsequent to its Chapter 11 filing and priorto its emergence, the Company recorded post-petition interest expense onpre-petition obligations only to the extent it believed the interest would bepaid during the bankruptcy proceeding or that it was probable that the interestwould be an allowed claim.

 

(3)   Earnings wereinadequate to cover fixed charges by $317 million for the three months endedSeptember 30, 2008.

 

 

 

**NORTHWESTAIRLINES CORPORATION**

 

**COMPUTATIONOF RATIO OF EARNINGS TO FIXED CHARGES**

**(Dollarsin millions)**

 
| ** **                                                                                             | ** ** | **Successor**          | ** ** | ** ** | **Predecessor**         | ** ** |
|--------------------------------------------------------------------------------------------------------|------------|------------------------|------------|------------|-------------------------|------------|
| ** **                                                                                             | ** ** | **Nine Months**   | ** ** | ** ** | **Period from**    | ** ** | ** ** | **Period from** | ** ** |
| ** **                                                                                             | ** ** | **Ended**              | ** ** | ** ** | **June 1 to** | ** ** | ** ** | **January 1 to** | ** ** |
| ** **                                                                                             | ** ** | **September 30,** | ** ** | ** ** | **September 30,**  | ** ** | ** ** | **May 31,** | ** ** |
| ** **                                                                                             | ** ** | **2008**               | ** ** | ** ** | **2007**                | ** ** | ** ** | **2007** | ** ** |
| **Earnings:**                                                                                          |       |                   |       |       |                    |       |   |   |   |
|                                                                                                   |       |                   |       |       |                    |       |   |   |   |
| Income  (loss) before income taxes                                                                     | ** ** | ** $**            | **(5,044** | **)**      | ** **              |  $    | 580 |   |   | $ | 1,749 |   |
| Less:                                                                                                  |       |                   | ** ** | ** ** |                    |       |   |   |   |
| Income from  less than 50% owned investees                                                             | ** ** | **-**                  | ** ** | ** ** | 1                       |       |   | **-** |   |
| Capitalized  interest                                                                                  | ** ** | **8**                  | ** ** | ** ** | 5                       |       |   | 6 |   |
| Add:                                                                                                   |       |                   | ** ** | ** ** |                    |       |   |   |   |
| Fixed  Charges, from below                                                                             | ** ** | **517**                | ** ** | ** ** | 228                     |       |   | 322 |   |
| Amortization  of interest capitalized                                                                  | ** ** | **-**                  | ** ** | ** ** | **-**                   |       |   | 3 |   |
|                                                                                                   |       |                   | ** ** | ** ** |                    |       |   |   |   |
| **Adjusted earnings**                                                                                  | ** ** | ** $**            | **(4,535** | **)**      | ** **              |  $    | 802 |   |   |  $ | 2,068 |   |
|                                                                                                   |       |                   | ** ** | ** ** |                    |       |   |   |   |
| **Fixed charges:**                                                                                     |       |                   | ** ** | ** ** |                    |       |   |   |   |
|                                                                                                   |       |                   | ** ** | ** ** |                    |       |   |   |   |
| Rent  expense representative of interest (1)                                                           | ** ** | ** $**            | **174**    | ** ** | ** **              |  $    | 76 |   |   |  $ | 97 |   |
| Interest  expense and capitalized, issuance costs and  amortization of debt discounts and premiums (2) | ** ** | **343**                | ** ** | ** ** | 152                     |       |   | 225 |   |
|                                                                                                   |       |                   | ** ** | ** ** |                    |       |   |   |   |
| **Fixed charges**                                                                                      | ** ** | ** $**            | **517**    | ** ** | ** **              |  $    | 228 |   |   |  $ | 322 |   |
|                                                                                                   |       |                   | ** ** | ** ** |                    |       |   |   |   |
| ** **                                                                                             | ** ** | ** **             |       |       |                    |       |   |   |   |
| **Ratio of earnings to fixed charges**                                                                 | ** ** | **--**                 |       |  (3)  | 3.52                    |       |   | 6.42 |   |

 

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

 

(2)   Subsequent to its Chapter 11 filing and priorto its emergence, the Company recorded post-petition interest expense onpre-petition obligations only to the extent it believed the interest would bepaid during the bankruptcy proceeding or that it was probable that the interestwould be an allowed claim.

 

(3)   Earnings wereinadequate to cover fixed charges by $5.1 billion for the nine months endedSeptember 30, 2008.