: Delta occasionally offers bonuses (up to 50% or more) during special promotional periods , which can significantly lower the cost per mile.
: While you can transfer miles to another person, it often costs more than buying them outright due to processing fees.
: Choose how many miles you need. Miles are typically sold in increments of 2,000.
: Enter your payment details. The miles usually appear in your account within 24 to 48 hours . Key Details and Costs