Winter weather can be a threat to holiday travel plans, although new data shows that certain airports and airlines are more prone to delays than others.

San Francisco International Airport sees the highest likelihood of weather-related disruptions for travelers between November and January, with 42.3 percent of flights delayed, according to a new study from Improved pointsa company that analyzes travel and credit cards.

Newark Liberty International Airport (EWR) followed closely behind with 42.1% of weather-related delays, followed by New York’s LaGuardia Airport (LGA) at 38.3%, Seattle-Tacoma International Airport (SEA) at 38.1 % and Boston Logan International Airport (BOS). ) to 31.3 percent.

The study also found that major airports with milder climates typically experienced the least weather-related disruptions. Leading the list was Daniel K. Inouye International Airport (HNL) with only 11% of delays due to weather, followed by Houston’s William P. Hobby Airport (HOU) with 12.3%; Los Angeles International Airport (LAX) at 12.4%; Dallas Love Field (DAL) at 12.7 percent; and San Diego International Airport (SAN) and Miami International Airport (MIA) tied at 13.1%.

“With the holiday season on the horizon, we looked at historical data from the Bureau of Transportation Statistics (BTS) to find the most delayed airports in the US, both during the peak holiday months and throughout throughout the year,” wrote Upgraded Points. in study. “We also analyzed the data to discover the airlines most affected by weather delays during the holidays and to identify the months with the most weather-related obstacles.”

During the same period, Alaska Airlines, which operates major hubs in San Francisco and Seattle-Tacoma – two of the airports most affected by the weather holiday season— reported the highest rate of weather-related delays among major carriers, averaging 30.2 percent. The other nine major airlines averaged:

• United Airlines: 29.4 percent
• Allegiant Air: 24.5 percent
• Spirit Airlines: 24.4 percent
• Delta Air Lines: 22.6 percent
• Frontier Airlines: 19.4 percent
• American Airlines: 19.0 percent
• JetBlue: 18.9 percent
• Southwest Airlines: 14.9 percent
• Hawaiian Airlines: 7.5 percent

The survey analyzed data from the 60 busiest US airports and 10 major domestic airlines between 2019 and 2024, excluding the year 2020 for disruptions related to COVID-19. Savvy travelers can stay ahead of the curve this holiday season by knowing how check for delays before official announcementswhile airlines like it United will send live radar map messages to passengers during weather delays and automatically rebook flights that are significantly delayed or canceled.