Mountain Transit offering free rides to 7 hiking trails through October.
The head of DHS is threatening to pull federal customs officers from airports in sanctuary cities - a move that could halt international travel through LAX.
Crowds are overwhelming Yosemite after the park ended its reservation system, with hours‑long waits, packed trails and rising safety concerns. Experts urge visitors to arrive early, avoid weekends and plan ahead as summer traffic intensifies.
As the U.S. restricts some travelers from entering amid an Ebola outbreak, experts warn that broader bans can have unintended consequences.
Despite high prices for gas and airfare, a record-breaking 45 million Americans are expected to travel for Memorial Day weekend, according to AAA.
A spokesperson told ABC News that Air France boarded a passenger from the Democratic Republic of Congo "in error" on a flight to the United States.