Exhibit 12.1

UAL Corporation and Subsidiary Companies

Computation of Ratio of Earnings to Fixed Charges



|                                                                                               |  |                             |     |   |      |   |      |  
|---------------------------------------------------------------------------------------------- |  | --------------------------- | --- | - | ---- | - | ---- | -
|                                                                                               |  | Three Months EndedMarch 31, |    
|(In millions)                                                                                  |  | 2010                        |     |   | 2009 |  
|Earnings (loss):                                                                               |  |                             |     |   |      |   |      |  
|Loss before income taxes & adjustments for minority interest and equity earnings in affiliates |  | $                           | (81 | ) |      | $ | (412 | )
|                                                                                               |  |                            
|Add (deduct):                                                                                  |  |                             |     |   |      |   |      |  
|Fixed charges, from below                                                                      |  |                             | 241 |   |      |   | 222  |  
|Amortization of capitalized interest                                                           |  |                             | 1   |   |      |   |     |  
|Distributed earnings of affiliates                                                             |  |                             | 1   |   |      |   | 1    |  
|Interest capitalized                                                                           |  |                             | (2  | ) |      |   | (3   | )
|                                                                                               |  |                             |     |   |      |   |      |  
|Earnings (loss) as adjusted                                                                    |  | $                           | 160 |   |      | $ | (192 | )
|                                                                                               |  |                             |     |   |      |   |      |  
|                                                                                               |  |                            
|Fixed charges:                                                                                 |  |                             |     |   |      |   |      |  
|Interest expensed and capitalized and amortization of debt discounts and issuance costs (a)    |  | $                           | 178 |   |      | $ | 134  |  
|Portion of rental expense representative of the interest factor                                |  |                             | 63  |   |      |   | 88   |  
|                                                                                               |  |                             |     |   |      |   |      |  
|Fixed charges, as above                                                                        |  | $                           | 241 |   |      | $ | 222  |  
|                                                                                               |  |                             |     |   |      |   |      |  
|                                                                                               |  |                            
|Ratio of earnings to fixed charges                                                             |  |                             | (b  | ) |      |   | (c   | )
|                                                                                               |  |                             |     |   |      |   |      |  



|(a) | Amortization of debt discounts includes amortization of fresh-start valuation discounts.
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|(b) | Earnings were inadequate to cover fixed charges by $81 million for the three months ended March 31, 2010.
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|(c) | Earnings were inadequate to cover fixed charges by $414 million for the three months ended March 31, 2009.
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