From 250.9
International Transportation
Passengers traveling from the United States to a foreign point who are denied boarding involuntarily from an oversold flight originating at a U.S. airport are entitled to: (1) No compensation if the carrier offers alternate transportation that is planned to arrive at the passenger's destination or first stopover not later than one hour after the planned arrival time of the passenger's original flight; (2) 200% of the fare to the passenger's destination or first stopover, with a maximum of $650, if the carrier offers alternate transportation that is planned to arrive at the passenger's destination or first stopover more than one hour but less than four hours after the planned arrival time of the passenger's original flight; and (3) 400% of the fare to the passenger's destination or first stopover, with a maximum of $1,300, if the carrier does not offer alternate transportation that is planned to arrive at the airport of the passenger's destination or first stopover less than four hours after the planned arrival time of the passenger's original flight.