DC Airports Hit by Ground Stop After Chemical Smell Shuts Down Air Traffic Control Center

What We Know So Far

The Potomac Consolidated TRACON facility handles air traffic for a huge stretch of the Mid-Atlantic. It manages the airspace around Washington, D.C., Baltimore, and parts of Virginia, including Andrews Air Force Base, Reagan National, Dulles, BWI, Richmond International, and several smaller regional airports. When something disrupts operations there, the ripple effects are felt across a large part of the East Coast flight network.

The FAA said the ground stop was triggered after a strong chemical smell was detected inside the facility and began affecting some air traffic controllers. Transportation Secretary Sean Duffy confirmed that officials were working to determine the source of the odor. No injuries have been reported so far. To keep some flights moving, the FAA started relocating controllers to a nearby training facility, though incoming flights were still being diverted as congestion built across the region.

As of Friday evening, officials had not yet publicly identified what caused the smell.

Source: Screenshot via X posted by U.S. Transportation Secretary Sean Duffy via X

Which Airports Are Affected

The ground stops are primarily concentrated at the three major D.C.-area airports, but the ripple effects are wider:

• Ronald Reagan Washington National Airport (DCA): Ground stop in effect. Passengers reported huddled at gates with delays at 90 minutes and rising.

• Washington Dulles International Airport (IAD): Ground stop in effect.

• Baltimore-Washington International Airport (BWI): Ground stop in effect.

• Richmond International Airport (RIC): Also impacted by the Potomac TRACON outage.

• Charlottesville-Albemarle Airport (CHO): Affected due to shared airspace coverage.

• Philadelphia International Airport (PHL): Under a ground delay, though reports indicate this is related to a separate equipment outage rather than the chemical smell directly.

What Travelers Should Do Right Now

If you have a flight tonight at any of the affected airports, a few things are worth doing immediately:

• Check your flight status directly through your airline's app, not a third-party tracker, as real-time updates will be faster and more accurate

• Do not leave for the airport without confirming your flight is still operating

• If your flight is cancelled or significantly delayed, contact your airline directly to understand rebooking options

• Gate agents at DCA are already managing large crowds, so using the airline app or phone line is faster than waiting in line

• Monitor the FAA's official updates at faa.gov for the latest on the ground stop status
  

What To Do If You're Booked on JetBlue Today

As of Friday evening, the situation is still developing. The FAA has not yet said what caused the chemical smell, how long the ground stop might last, or whether moving controllers to a backup facility will be enough to get operations fully back to normal. The TRACON in Warrenton usually manages a huge amount of traffic, especially on a Friday night, which is one of the busiest travel periods of the week.

What is clear is that this is not a routine delay. Ground stops affecting three major airports at the same time are rare, and disruptions at an air traffic control facility tend to ripple through the system quickly. If you have travel plans in or out of the Washington area tonight, it’s worth keeping a close eye on your flight status.

For now, the best move is to stay flexible, stay in touch with your airline, and keep checking for updates as more information becomes available.

Frequently Asked Questions: DC Airport Ground Stop March 2026

Which DC airports are affected by the ground stop?

Ronald Reagan Washington National Airport, Washington Dulles International Airport, and Baltimore-Washington International Airport are all under ground stops. Richmond International and Charlottesville-Albemarle airports are also affected. Philadelphia International is under a separate ground delay.

What caused the DC airport ground stop?

A strong chemical smell was detected at the Potomac Consolidated TRACON facility in Warrenton, Virginia, impacting some air traffic controllers. The FAA has not confirmed the source of the smell. No injuries have been reported.

What is Potomac TRACON and why does it matter?

Potomac TRACON is the air traffic control facility that manages airspace for the entire Baltimore-Washington and Richmond-Charlottesville corridor, covering Reagan National, Dulles, BWI, Andrews, Richmond, and other airports in the region. When it's affected, a large portion of East Coast air traffic is disrupted.

How long will the DC airport ground stop last?

The FAA has not confirmed an end time as of Friday evening. The situation is still developing and ground stops remain active. Check faa.gov and your airline directly for the latest status.

What should I do if I have a flight tonight at DCA, Dulles, or BWI?

Check your flight status immediately through your airline's official app. Do not leave for the airport without confirming your flight is operating. If your flight is delayed or cancelled, contact your airline directly for rebooking options rather than waiting at the gate.

Are flights being diverted?

Some incoming flights are being diverted due to congestion caused by the ground stop. If you are on an inbound flight, your airline will have the most accurate information on whether your specific flight is affected.

Has anyone been injured at the Potomac TRACON facility?

No injuries have been reported at the facility. The ground stop is a precautionary measure to protect air traffic controllers while the source of the smell is investigated.