Delta offers one of the worst value propositions to their customers each time they purchase a ticket online at Delta’s website. Delta offers their customers what is called the Award Builder. Essentially customers have the ability to build up to an award by purchasing miles at a high cost per mile.
Delta Award Builder
The award builder bonus miles come in three tiers. Each offer values Delta miles purchased at $0.028 cents per mile.
The Delta Award builder offers a poor value proposition. I would avoid purchasing miles through the award builder option if you have a choice. If you only need 1,000 miles to top off your account, consider transferring from an American Express Membership Rewards account during one of the many Delta transfer bonuses.