Flying has never been busier, and two high-traffic U.S. routes are leading the charge—one hugging California’s coast, the other soaring between Hawaii’s most popular islands.
Aircraft in Action
According to a new analysis by FlightRadar24, Los Angeles (LAX) to San Francisco (SFO) is officially the busiest airline route in North America, with about 250 flights every week. This short West Coast hop connects two massive metro areas, and it’s served by nearly every major U.S. airline—Alaska, American, Delta, Frontier, Southwest and United. Add in flights to nearby regional airports, and the skies over California are practically gridlocked.
Aviation enthusiasts will also enjoy the aircraft diversity on this corridor: everything from Airbus A319s and A320neos to Boeing 737 MAX jets and regional Embraers zip back and forth daily.
Island Hopping
Not far behind is Hawaii’s Honolulu–Kahului route, an island-hopper favorite that sees over 150 weekly flights. Hawaiian Airlines dominates with its quick-turn Boeing 717-200s, while Southwest’s larger 737 MAX 8s bring added capacity and competition.
It’s not just passengers fueling this route’s volume. Aloha Air Cargo runs 30 weekly flights using freighters, and even UPS is in on the action with multi-stop island freight service several times a week.
High-Frequency Routes
And when it comes to sheer airport activity, LAX reigns supreme, managing over 800 departures every day, with one record-setting day in July seeing more than 890 takeoffs. San Francisco clocks in with about 600 daily flights, while Honolulu handles upwards of 270 daily, often pushing past 300 during peak summer travel.
