Holding airline vouchers for canceled flights? They may be about to expire Terms vary wildly; expert says read the fine print, call customer service Tags: SAN ANTONIO – A year after the pandemic forced Lisa Kopecky to cancel her flight, she’s finally ready for takeoff. “I’m going to New York for a little work trip and to see my daughter and little grandbaby, and I am about to do backflips all the way to check-in,” she said while arriving at San Antonio International. It’s time, Kopecky said, to cash in her travel credits from that canceled flight. The airlines have been mostly generous in handling customers’ changes, often offering vouchers for future travel. But one year since the lockdowns began, some of those credits may be about to expire. So what should you do?