San Diego Airport Delays After Drone Sighting

San Diego International Airport paused arrivals and departures on Friday, September 4, 2026, after a drone and a weather balloon were spotted near the airfield around 2 p.m. Pacific, airport officials told the San Diego Union-Tribune. The Federal Aviation Administration reported an all-clear by about 4:30 p.m., but more than 400 flights had already been delayed as Labor Day weekend travel piled up.

If you were on a Friday itinerary through SAN, keep the delay on record, ask the airline for a same-day rebook or overnight hotel when the missed connection is real, and do not assume Saturday operations are still frozen. The pause itself ended Friday afternoon. Travelers comparing SAN with Tijuana or other regional fields can start with Deep Arrival’s closest airport to San Diego guide before changing a ticket that still has a usable SAN bank.

FAA Paused Arrivals and Departures Around 2 p.m.

Airport personnel told the Union-Tribune that one object was a drone and the second was a weather balloon. SAN public information officer Nicole Hall told NBC 7 San Diego the same sequence: the objects were spotted around 2 p.m., and the FAA then paused arrivals and departures just as the holiday weekend was getting underway.

That pause is the load-bearing fact. SAN is a single-runway coastal airport with little slack when the FAA stops both arrivals and departures. A two-hour operating freeze on a Friday before Labor Day does not stay contained to the people already at the gate. Inbound aircraft hold, outbound banks slip, and crews time out even after the runway reopens.

Hall said the FAA reported an all-clear by about 4:30 p.m. and that all airport operations had resumed. The Union-Tribune independently reported the same all-clear time. Neither outlet said the balloon was a threat. NBC noted that weather balloons are a standard National Weather Service tool for collecting atmospheric data. The drone is the object under investigation.

More Than 400 Flights Were Delayed Before 4:30 p.m.

By 5 p.m., FlightAware had counted more than 400 delayed San Diego flights, the Union-Tribune reported. NBC, citing the same tracker later in the evening, put the tally at about 420 delayed flights by 6 p.m. The FAA’s published delay average was about 122 minutes, or roughly two hours, according to NBC.

Those counts mix gate holds, airborne holds, and later turns that could not leave because the earlier aircraft or crew was still out of position. NBC said residual delays were still hitting arriving and departing flights Friday evening after operations had formally resumed. If your Friday flight moved more than three hours, save the airline messages. Those timestamps are what a claim desk will ask for.

Deep Arrival already tracked a quieter SAN slowdown in August, when a ground delay program averaged 34 minutes on August 9. Friday’s drone pause was a different event: a full stop, not a metering program, and a much larger delay stack on a holiday weekend.

TSA Is Investigating the Drone Sighting

Hall told NBC that San Diego’s Airfield Operations would keep monitoring the situation with the FAA, TSA, and local law enforcement, and that TSA law enforcement is investigating the reported drone activity. The Union-Tribune reported the same coordination. Neither source named a suspect, a launch site, or a finding. Those points remain unresolved.

The FAA’s standing rule, as restated by the Union-Tribune, is that drone operators need airspace authorization before flying near airports in controlled airspace, and that drones are hard for crewed aircraft to see and avoid. That is a general safety rule, not a charge sheet for Friday. Do not treat the weather balloon as part of the same legal problem. Airport staff separated the two objects.

For Saturday and Sunday passengers, the investigation is background, not a reason to cancel a ticket on your own. SAN has not announced a new operating restriction tied to the inquiry. Recheck the airline and the airport if TSA or the FAA later issues a ground stop. Until that happens, treat Friday as a closed pause with an open investigation, not as a continuing closure.

Labor Day Travelers Still Have Rebooking Steps

The useful work on Saturday is paperwork and connections, not a second runway shutdown. Ask the airline whether Friday’s delay still unlocks a free same-day move, the next available seat after a missed connection, or an overnight hotel if you were stranded away from home. U.S. rules do not automatically pay cash for a two-hour airport pause.

Do not buy a nonrefundable replacement ticket until the original airline refuses a confirmed seat. Keep the boarding pass and delay notices. If a bag missed the aircraft, file the delayed-bag report at the carousel before leaving the terminal. People connecting to a cruise, park reservation, or Saturday meeting should call that booking before they leave SAN.

SAN Connections and Alternate Airports This Weekend

SAN is still the default airport for most San Diego trips. Switching to Tijuana or a smaller field only helps if the airline can actually ticket you there, you can cross the border with the documents you have, and the extra ground time is shorter than waiting for the next SAN departure. The Oceanside airport comparison is useful for North County itineraries. It is not a drop-in substitute for a missed SAN long-haul.

If you are inbound Saturday, plan for a normal airport with a tired operation: later aircraft, crews that already worked Friday’s recovery, and fuller cabins from rebooked passengers. Build a longer hub connection if you can. Recheck SAN’s own flight information and the airline app before leaving for the airport. A drone investigation does not, by itself, change Saturday’s list. A missing inbound aircraft does.