The Cottagers' first leg in Germany is in jeopardy thanks to the volcanic ash cloud which has engulfed Europe's skies, causing Britain's airports to remain closed all weekend.
Should British airspace remain closed until Wednesday, Fulham would have to catch a train or ferry to mainland Europe before making their way to northern Germany by road or rail.
Hodgson believes that would put his side's chances of making their first European final in history under threat.
"It will be a disadvantage if we can't fly and were obliged to find other means of travel," said Hodgson after Saturday's goalless draw with Wolves.
"One of the major difficulties will be finding that means of travel. "We wouldn't be able to contemplate booking anything until probably sometime during Monday, which would make it very late."