Original flight was delayed because of a snow storm. Couldn't get rebooked until two days later. One significant problem with flying Lufthansa was there isn't anyone in Denver who can help you. You have to do it all over the phone. However, it all worked out eventually and our flight to and from Athens was great. On time, good service, good food, and entertainment. The seating was adequate in economy but best part is direct flight service to and from Denver to Munich or Frankfurt. All as long as your flight isn't cancelled. Then it can be a nightmare but what airline wouldn't be?