UEFA will decide on Monday whether next week's Europa League semi-final in Hamburg gets the go-ahead.
The volcanic ash cloud that has caused travel chaos across Europe has thrown Thursday's tie into jeopardy, with British airspace closed until tomorrow morning at the earliest.
Whites boss Roy Hodgson revealed football's governing body had contacted the club, who have 2,500 fans travelling to the game, but he hopes Fulham will be able to fly to Germany on Wednesday as planned.
He said: "UEFA have been in touch with the club and the English FA are in touch with the matter.
"One of UEFA's concerns is that it should be fair and that their opponents don't have to go through hell and high water to get to the game.
"An ideal scenario would be that the volcanic ash clears up and we can fly over to Germany.
"It's totally and utterly linked to if there are flights. If there are no flights then the only option is to get a train and bus to Hamburg.
"There could still be a further problem because there might be no trains or coaches to travel on but I'm confident UEFA will resolve the problem."