Exhibit 12.1

NORTHWEST AIRLINES CORPORATION

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Dollars in millions)

	Post-Merger			Pre-Merger
	Successor			Successor					Predecessor
	Period from			Period from			Period from		Period from
	October 30 to			January 1 to			June 1 to		January 1 to
	December 31,			October 29,			December 31,		May 31,		Year ended December 31
	2008			2008			2007		2007		2006			2005			2004
Earnings:

Income (loss) before income taxes and cumulative effect of accounting change	$	(540	)	$	(5,673	)	$	566	$	1,749	$	(2,864	)	$	(2,457	)	$	(861	)

Less:
Income (loss) from less than 50% owned investees	—			—			2		—		1			(14		)	8
Capitalized interest	1			9			9		6		10			10			8
Add:
Fixed charges, from below	173			574			408		322		745			865			791
Amortization of interest capitalized	—			—			—		3		8			8			8
Adjusted earnings	$	(368	)	$	(5,108	)	$	963	$	2,068	$	(2,122	)	$	(1,580	)	$	(78	)

Fixed charges:

Rent expense representative of interest (1)	$	41		$	191		$	126	$	97	$	180		$	255		$	248
Interest expensed and capitalized, issuance costs, amortization of debt discounts and premiums and interest of preferred security holder (2)	132			383			282		225		565			610			543
Fixed charges	$	173		$	574		$	408	$	322	$	745		$	865		$	791

Ratio of earnings to fixed charges	—		(3)	—		(3)	2.36		6.42		—		(3)	—		(3)	—		(3)

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

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

(3) Earnings were inadequate to cover fixed charges by $541 million for the period from October 30, 2008 through December 31, 2008, $5.68 billion for the period from January 1, 2008 through October 29, 2008, and $2.87 billion, $2.45 billion, and $869 million for the years ended December 31, 2006, 2005, and 2004.

NORTHWEST AIRLINES CORP 10-K