Hi! Last Saturday my 7 pm United flight from San Francisco to Frankfurt was cancelled. At first there were mechanical problems with the aircraft, then they couldn't put together a crew! We didn't get any accomodation, but only two 7-dollar meal vouchers. We had to spend the night at the airport and fly back the following day at 4 pm (btw, that flight was also late and we really had to run to catch our connecting flight to Italy).
Can we get any compensation? Do you have any tips?