The busiest travel day of the holiday season is underway at Toronto’s Pearson International Airport.

Officials are expecting around 115,000 passengers to pass through the airport on Friday.

However, the weather could severely impact holiday travel plans. A freezing rain warning is in effect for parts of southern Ontario, including the GTA.

Depending on the temperature, some areas could receive rain, ice pellets and freezing rain. Up to 10 centimetres of snow is in the forecast of areas snow north of the city.

WestJet and Air Canada have issued travel advisories warning of potential delays and cancellations. At Pearson, lineups formed early as travellers headed out of town for the holidays.

Passengers are being reminded to be aware of restrictions on liquids, gels and aerosols when packing their carry-on luggage and to leave gifts unwrapped for inspection.

With files from The Canadian Press