FAA Cuts SFO Arrivals, Triggering Delays

Runway work and safety concerns prompt reduction in flights at San Francisco airport.

Apr. 1, 2026 at 3:18am by Ben Kaplan

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The Federal Aviation Administration has reduced the number of arriving flights at San Francisco International Airport by a third, from 54 per hour to 36, due to safety concerns and ongoing runway construction. This is expected to result in roughly 25% of arriving flights being delayed by at least 30 minutes over the next six months.

Why it matters

The FAA's decision to limit arrivals at SFO highlights ongoing challenges with airport infrastructure and air traffic safety, especially at congested airports with closely spaced runways. The changes will impact travelers passing through one of the busiest airports on the West Coast.

The details

The FAA cited the close proximity of SFO's parallel runways, which are just 750 feet apart, as well as the airport's congested airspace, as the reasons for the arrival reductions. A deadly runway accident at New York's LaGuardia Airport in March was not the direct trigger, but it highlighted broader air traffic safety concerns. The arrival cuts are split between nine flights due to a runway repaving project and nine flights due to the FAA's permanent rule change.

  • The FAA announced the arrival reductions on Tuesday, March 31, 2026.
  • The runway construction project and arrival cuts are expected to last for six months.

The players

Federal Aviation Administration

The U.S. government agency responsible for the regulation and oversight of civil aviation.

San Francisco International Airport

One of the busiest airports on the West Coast, serving the San Francisco Bay Area.

United Airlines

A major airline that operates a significant number of flights out of SFO.

Alaska Airlines

An airline that also operates flights out of SFO.

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What they’re saying

“The situation was changing by the day, with 15 flights delayed out of SFO on Monday and none experiencing delays on Tuesday.”

— Alaska Airlines

“We are reviewing the rule change to see if any changes need to be made to our flight schedule.”

— United Airlines, Spokesperson

What’s next

The FAA will continue to monitor the situation at SFO and may make further adjustments to arrival rates as the runway construction project progresses.

The takeaway

The arrival cuts at SFO highlight the ongoing challenges airports face in balancing infrastructure needs, safety concerns, and the demands of air travel. Travelers passing through SFO should expect delays and plan accordingly over the next six months.