Why flights get delayed at BWI
Thunderstorms
Summer storms in the Mid-Atlantic slow arrivals and close departure routes.
Northeast corridor congestion
Traffic is often held on the ground when New York, Philadelphia or Washington airspace is saturated.
Aircraft running late all day
Southwest aircraft fly many short legs a day, so a morning delay elsewhere can still be affecting BWI in the evening.
Flying through BWI soon? How to prepare
- Time it well.
- Know your airline's commitments. Check what Southwest Airlines or your own airline has promised for delays and cancellations in our airline policy guides, or see how to check it yourself.
- Line up a backup. Note the next couple of flights on your route and the alternate airports below before you leave home.
- Connecting here? Keep both flights on one ticket and choose a layover with room to spare above the minimum connection time.
The full list is in our pre-trip checklist.
Airlines most affected
Baltimore/Washington is a hub or major base for Southwest Airlines. When the airport slows down, that airline has the most flights to re-plan, but it also has the most later departures to rebook you onto. What you are offered during a delay depends on the carrier.
Check the live status
- The FAA shows current ground stops and delay programs for BWI at nasstatus.faa.gov.
- Departure boards, terminal and security information are on the official Baltimore/Washington website.
If your flight is delayed or cancelled at BWI
- Find the real cause. Ask the gate agent, then compare it with the FAA status above. The cause decides what the airline owes you: see is it really a weather delay?
- Know your refund right. If the flight is cancelled, or delayed three hours or more (six for international), you can decline to travel and get your money back.
- Line up alternatives first. Look at later flights, other airlines and the alternate airports below before you reach the desk.
- Ask for what the airline has committed to. For delays within its control, that usually means a meal after three hours and a hotel overnight. Here is what to say.
The full walkthrough is in what to do when your flight is delayed.
Alternate airports near BWI
If flights out of Baltimore/Washington are sold out or cancelled, these airports are within a realistic drive. Distances are approximate road miles. See how to switch airports without losing your booking.
| Airport | Code | Distance |
|---|---|---|
| Reagan National | DCA | about 35 miles |
| Washington Dulles | IAD | about 60 miles |