Buying OnePass miles:

You can buy miles to top off your account to get you a travel or upgrade award. The link is found under the Travel Rewards page:

Purchase up to 25% of the miles needed for any OnePass reward on Continental Airlines requiring at least 20,000 miles. Please keep in mind that:

• Miles are purchased in 1,000-mile increments at $32 (plus tax) per increment and are non-refundable.
• You need to purchase miles at the time your travel reward is ticketed.
• Use your credit card for convenient mileage purchase payment when redeeming online or requesting a reward over the phone. (This option does not apply to International Airline Partner rewards or promotional rewards.)
• You also may be required to pay taxes assessed on such purchases.

Note that the pre-tax cost of purchased miles is approximately 3.2 cents per mile. You should factor this into your calculations whether it is worth purchasing the miles or acquiring them through other channels (partner offers, etc.).