A traveler walks through Terminal 3 at O'Hare International Airport in Chicago, Ill., Dec. 28, 2021. In NerdWallet’s annual analysis of airline mile valuations, holiday flights often don’t provide the highest per-mile value. For example, Delta, Southwest or American Airlines miles are generally worth 1.5 cents each when redeemed for flights. However, they’re only worth about 1.4 cents when you use them for flights around the holidays. (AP Photo/Nam Y. Huh)
