SAN FRANCISCO (CBS SF) – On what is anticipated to be one of the busiest travel days of the year-end holiday season, some Bay Area airports are facing delays and cancellations with inclement weather arriving Friday morning.

At San Francisco International Airport, airport duty manager Lily Wang said 50 flights — 25 arrivals and 25 departures—were canceled Friday morning.

Other flights are seeing delays of up to an hour and a half, Wang said.

She said there are many delays into Midwest and East Coast airports, with longer delays for flights arriving at Newark International Airport.

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An estimated 130,000 passengers are expected to pass through SFO Friday, according to airport officials.

Oakland International Airport is tracking on-time flights in and out of the airport Friday with no cancellations, according to airport operations staff.

The airport was expected to see increased activity today before the Christmas holiday, according to officials.

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