Flights are beginning to return to normal, but passengers continue to experience delays and cancellations after the worst snow storm in six years hit the east coast of the United States.
Airports in Boston, New York, Washington and Philadelphia have now reopened, but some passengers remain stranded.
Many flights were already full due to the post-christmas rush, so finding space for passengers from cancelled flights is proving problematic.
On Sunday and Monday nights, passengers camped out at terminals, while others endured long delays onboard planes waiting on the tarmac for take-off.
In New York, around 20 inches of snow fell over 17 hours on Sunday and Monday, causing around 4,500 flights at the city’s three major airports.