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Which airport is closer to DC, Reagan or Dulles?

Reagan National (DCA) is much closer to Washington, D.C. At roughly 4 miles from downtown, it sits just across the Potomac River in Arlington, Virginia. Dulles (IAD) is about 26 to 27 miles west of the city in Loudoun and Fairfax counties. Reagan wins on distance, every time.

Reagan National (DCA) is much closer to Washington, D.C. At roughly 4 miles from downtown, it sits just across the Potomac River in Arlington, Virginia. Dulles (IAD) is about 26 to 27 miles west of the city in Loudoun and Fairfax counties. Reagan wins on distance, every time.

The numbers

Reagan National is approximately 4 miles from downtown Washington, while Dulles is about 26 miles away. That gap is not a rounding difference. It shapes everything from how you get to the airport to how early you need to leave your hotel.

Reagan is the closest commercial airport to downtown Washington, D.C. It sits just across the Potomac River in Arlington, Virginia, about a 4-mile drive from the White House. Dulles, by contrast, is 26 miles west of downtown, in Loudoun and Fairfax counties in Northern Virginia.

Getting there: car and rideshare

The drive from Reagan to downtown takes 10 to 15 minutes with no traffic, compared to 35 to 50 minutes from Dulles. Traffic is a real factor at Reagan, especially near Terminal B/C, and rush hour on the George Washington Parkway can slow things down. Mid-day arrivals and departures are usually smooth.

Rideshare costs reflect the mileage gap sharply. An average Uber from Reagan runs about $16; from Dulles, closer to $43. Standard Uber service from Dulles can run $57 to $59, and prices climb during peak times.

Getting there: Metro

Reagan has had its own Metro station for decades. Washington Reagan National Airport has its own Metro station, reachable via walkways from Terminal B and C. From Terminal A, a free airport shuttle bus connects to the station. Trains depart every 15 minutes, and the ride into the city takes about 16 minutes.

Dulles got its Metro station much later. The 23.1-mile Dulles Corridor Metrorail Project, connecting the airport with downtown Washington D.C., opened in November 2022. The $6.01 billion project now operates as the Silver Line. A direct Silver Line train runs from Dulles to Farragut West, departing every 15 minutes and taking about 46 minutes.

The flight trade-off

Proximity to the city comes with a catch at Reagan. Flights to and from Reagan are restricted by a federal perimeter rule that limits nonstop flights to a 1,250-mile distance unless granted a specific exemption by law. The perimeter rule was first introduced in January 1966. The idea was that longer flights would operate from Dulles while smaller aircraft flew out of Reagan, reducing noise for residents.

The perimeter rule limits nonstop flights from Reagan to destinations within 1,250 miles, roughly as far west as Kansas and Nebraska, and as far north as Quebec and Newfoundland. A handful of congressional exemptions have added beyond-perimeter routes. At Reagan National, most nonstop flights are limited to a range of 1,250 miles, though exemptions have allowed flights to and from about 10 cities beyond that limit, such as Denver and Seattle.

Dulles is home to most of the international flights in the region. Reagan is nominally a domestic airport and only receives international flights from airports with U.S. border pre-clearance facilities, which are treated like domestic flights. So if you're flying to London or Tokyo, Dulles is your airport regardless of where you're staying.

Bottom line

For most trips into Washington proper, Reagan is the practical choice. Four miles versus 26 miles is a 20-minute Metro ride versus a 46-minute one, and a $16 rideshare versus a $43-plus fare. The calculus only flips if your destination is in Northern Virginia closer to Dulles, your airline only serves Dulles, or you're on an international itinerary. Silver Line Phase 2 opened on November 15, 2022, with a ribbon-cutting that included U.S. Transportation Secretary Pete Buttigieg, which means Dulles is more accessible than it was even a few years ago. But Reagan's location, across the river from the National Mall, is hard to beat for a downtown DC trip.

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