If you go this route, make sure you put the flight purchase on a credit card that'll maximize your returns.
Platinum Delta SkyMiles® Credit Card from American Express: Earn 35,000 bonus miles and 5,000 Medallion® Qualification Miles (MQMs) after you use your new card to make $1,000 in purchases within your first three months and a $100 statement credit after you make a Delta purchase with your new card within your first three months.By signing up, you will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.