We fly to Paris via Delta/Air France on April 13th and this morning in the spirit of making sure we were all set checked on our flight. Our seat assingments were blank so we re-selected our business class seats and re-printed our itinerary. I just happened to glance at the paperwork before filing it and noticed that the flight was arriving in Paris HOURS later than we'd thought! Both our flight to Paris and our flight home had been cancelled, and they'd just stuck us on the next available flights without so much as a phone call or email.
We have no idea how long ago this happened (we made our reservations last August in order to use frequent flyer miles). The main problem with the itinerary change was that we would miss our train to Brussels (we have one week shared between Brussels and Amsterdam, followed by a week in Paris and a week in the Normandy area). With the help of a very personable Delta agent we ultimately decided to leave a day earlier and connect through London to Paris in order to make our train connection to Brussels. It was pretty much a wash money wise -- airport taxes for flying into London or repurchasing non-refundable train tickets. May even work out for the best because now we'll be more or less rested after staying overnight one night in Paris on the front end before moving on to Brussels, and we also don't have to cut our trip short on the back end by coming back into Paris the day before since our homeward flight is now at 4PM instead of 10AM. But we learned a big lesson -- check your flight arrangements periodically when you make them far in advance, and certainly re-check before making other tour or transportation connections!