 WTOP's Money News, 10 to 40 past the hour, brought to you by PenFed. Great rates for everyone to Jeff Claybaugh. If you're booking a flight for summer travel, it should be a bit cheaper than last summer. Fare tracking company Hopper says domestic airfares are down 6% compared to a year ago. Round trips to Europe now average about $900, down from an average $1,100 last summer. Sam's Club is eliminating a popular perk.