Page last updated: 21 September 2025

San Francisco International Airport (SFO) remains the Bay Area’s primary air gateway. By passenger count it is California’s second-busiest airport and ranks 13th in the United States.

How many passengers pass through San Francisco International Airport each year?

San Francisco International Airport handles over 50 million passengers annually, excluding the pandemic and recovery periods.

International Passenger vs Domestic Passenger

Domestic travel still dominates SFO’s traffic mix, yet the international share is growing quickly.

Enplaned vs Deplaned Passengers

San Francisco International Airport shows an almost equal number of enplaned and deplaned passengers, a characteristic common to major transit hubs.

Passenger Flow: Enplaned vs Deplaned (2019-24)

YearDomestic EnplanedInternational EnplanedDomestic DeplanedInternational Deplaned
201921.12 M7.55 M20.99 M7.69 M
20206.57 M1.61 M6.55 M1.68 M
202110.55 M1.61 M10.44 M1.72 M
202216.07 M4.98 M16.13 M4.96 M
202317.99 M7.00 M18.00 M7.07 M
202418.20 M7.85 M18.17 M7.91 M

Aircraft Operations at San Francisco International Airport 

San Francisco International Airport records over 300,000 aircraft operations (takeoffs and landings) each year.

Aircraft Operations by Type

Aircraft Operations at SFO International Airport  by Type (2019-24)

Type201920202021202220232024
Air Carrier393,869193,723215,767301,828346,766355,510
Air Taxi50,91729,37539,66041,21728,31221,664
General Aviation10,9995,3117,2379,0337,0806,670
Military2,7112,7542,9332,9282,7132,663

Top Airlines Operating out of San Francisco International Airport

United Airlines maintains a dominant position, using SFO as a fortress hub.

Top 10 Airlines at SFO Airport by Passenger Volume (2024)

AirlineTotal PassengerMarket Share
United Airlines22.35 M42.8%
Delta Air Lines3.97 M7.6%
SkyWest Airlines3.95 M7.6%
Alaska Airlines3.62 M6.9%
American Airlines3.38 M6.5%
Southwest Airlines2.02 M3.9%
Frontier Airlines1.46 M2.8%
JetBlue Airways1.20 M2.3%
Air Canada0.82 M1.6%
EVA Airways0.62 M1.2%

Monthly Trends in Passenger Traffic

San Francisco International Airport shows clear seasonal trends in passenger traffic and peak volumes occur during the summer months. 

Most Popular Destinations out of San Francisco International Airport

Domestic Destinations

International Destinations

San Francisco Travel Resources

How much cargo does San Francisco International Airport handle annually?

San Francisco International Airport handles around 500,000 metric tons of cargo each year.

How many delays and cancellations occurred at San Francisco International Airport in the last year?

How much revenue has San Francisco International Airport generated each year?

San Francisco International Airport (SFO) has experienced growth in total revenue over the years, surpassing the $1 billion mark consistently since 2022. 

Annual Revenue, Expense and Income at SFO International Airport (2019-24)

(in Million USD)FY 2019FY 2020FY 2021FY 2022FY 2023FY 2024
Operating Revenue980.4943.9515.4821.31,064.11,401.4
Operating Expenses764.0931.1914.4809.8902.8976.6
Non-operating Expenses99.1245.353.1180.0197.4162.7
Total Expense863.11,176.4967.5989.81,100.11,139.3
Total Income117.3-232.5-452.1-168.5-36.0262.1

Major Incidents at San Francisco International Airport

Other US Airport Statistics

USA Travel Statistics Resources

References

  1. FSFO: San Francisco International Airport Air Traffic Statistics
  2. DT: International Destination of Passenger from San Francisco International Airport
  3. BTS: Top Domestic Destination of Passenger from San Francisco International Airport and On-Time Performance Summary
  4. NTSB: San Francisco International Airport Incident Information