Upgrading Your Flight? Delta & US Airlines Are Overcharging You
Travelers relish the thought of upgrading to a more spacious seat - and, more than ever, they're using their money or miles to bump themselves up. But you might be paying significantly more than you should for that upgrade. We compared the cost of upgrading an existing economy flight against rebooking the flight outright in a higher cabin on more than 20 upcoming flights on the nation's three larg...
