Smart Travel: Upgrade Your Getaways · Wednesday, August 5, 2026
To upgrade Delta flights to Comfort Plus using miles, go to Delta.com, book your flight, and select the upgrade option. The cost in miles varies, and it's recommended to use Nerd Wallet's calculator to determine if it's a good deal.
“So, let's look at how you would actually use miles for upgrades. You can do that through Delta SkyMiles. It's pretty straightforward. Just go to Delta.com, book your flight, and then you can select upgrade to comfort plus. And then you'll see how many miles it costs.”
“You know, sometimes it's a good deal, sometimes it's not. We also have a calculator on Nerd Wallet that helps you determine if it's worth it.”