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FAA Cuts SFO Arrivals, Signaling Delays Ahead
Safety concerns and runway construction force reduction in flights at San Francisco International Airport.
Mar. 31, 2026 at 10:48pm by Ben Kaplan
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The Federal Aviation Administration has announced a reduction in the number of arriving flights at San Francisco International Airport over the next six months, from 54 per hour down to 36. This is due to safety concerns over the airport's closely spaced parallel runways and ongoing runway construction projects, which are expected to result in roughly a quarter of arriving flights being delayed by at least 30 minutes.
Why it matters
The reduced arrival capacity at SFO will have a significant impact on travelers, with nearly a quarter of flights facing substantial delays. This comes as the Bay Area's major airports are already dealing with high demand, so the changes at SFO could ripple across the region's air travel network.
The details
The FAA's decision to cut SFO's arrival capacity by a third is due to longstanding safety concerns over the airport's parallel runways, which are just 750 feet apart. This close spacing, combined with the congested airspace around multiple nearby airports, has led the FAA to determine that the previous practice of simultaneously landing planes on the parallel runways is too risky. In addition, a six-month runway repaving project will take nine of the 18 hourly arrivals out of commission.
- The FAA announced the arrival reductions on Tuesday, March 31, 2026.
- The reduced arrival capacity at SFO will be in effect for the next 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 major airports serving the San Francisco Bay Area, known for its complex airspace and closely spaced parallel runways.
United Airlines
A major U.S. airline that operates a significant number of flights out of SFO.
Alaska Airlines
A U.S. airline that also operates flights out of SFO.
What they’re saying
“We decided that SFO's longstanding practice of landing two planes at the same time on closely spaced parallel runways that are just 750 feet apart — along with congested airspace — was too dangerous.”
— Ian Gregor, FAA Spokesman
What’s next
The FAA will continue to monitor the situation at SFO and may make further adjustments to arrival capacity if necessary. Airlines serving the airport are reviewing their schedules to determine if any flight changes will be required.
The takeaway
The reduction in arrival capacity at SFO highlights the ongoing challenges facing the Bay Area's air travel infrastructure, as the region's major airports struggle to balance safety, capacity, and demand. Travelers should expect more delays and disruptions at SFO in the coming months, underscoring the need for long-term investments in airport modernization and expansion.
