Washington, D.C. is the US capital and federal district on the Potomac River, with about 690,000 residents. Three airports serve it: Dulles, Reagan National (closest, with a Metro station) and BWI, which is in Maryland. Summers are hot and humid and winters are cool.
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26 miles (42 km) from the city centre. 29 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Subway | Metro Silver Line from Dulles Airport station to Metro Center | about 53m | standard distance-based Metro fare, no airport surcharge |
31 miles (50 km) from the city centre. 27.1 million passengers in 2024
| How | Route |
|---|---|
| Train | MARC Penn Line or Amtrak from BWI Rail Station (free shuttle bus from terminal) to Washington Union Station |
5 miles (8 km) from the city centre. 26.3 million passengers in 2024
| How | Route | Cost |
|---|---|---|
| Subway | Metro Blue and Yellow lines from Ronald Reagan Washington National Airport station, linked to Terminal 2 by pedestrian walkways | Metro fares $2.25-$6.75 at weekday peak by distance |
This is domestic travel for US citizens: no passport or visa is needed, but travelers 18 and over need a REAL ID-compliant license or another accepted ID to fly.
Since May 7, 2025, TSA requires a REAL ID-compliant driver's license (star marking), an enhanced license, or an alternative such as a valid US passport or military ID at airport checkpoints. Travelers under 18 do not need ID when flying with a companion who has acceptable ID.
Summer highs average about 85 to 90 F from June to August. Spring and autumn are milder, with April highs near 68 F and October near 69 F.
Busiest: Mar-May, Sep-Oct. Quieter shoulder season: Jun, Nov.
| Month | Avg high | Avg low |
|---|---|---|
| Jan | 45°F (7°C) | 30°F (-1°C) |
| Feb | 48°F (9°C) | 32°F (0°C) |
| Mar | 56°F (13°C) | 39°F (4°C) |
| Apr | 68°F (20°C) | 48°F (9°C) |
| May | 76°F (24°C) | 58°F (14°C) |
| Jun | 85°F (29°C) | 68°F (20°C) |
| Jul | 90°F (32°C) | 72°F (22°C) |
| Aug | 88°F (31°C) | 71°F (22°C) |
| Sep | 81°F (27°C) | 64°F (18°C) |
| Oct | 69°F (21°C) | 52°F (11°C) |
| Nov | 58°F (14°C) | 42°F (6°C) |
| Dec | 49°F (9°C) | 34°F (1°C) |
Washington, D.C. is served by Washington Dulles International Airport (IAD), Baltimore/Washington International Thurgood Marshall Airport (BWI) and Ronald Reagan Washington National Airport (DCA). Washington Dulles International Airport handled about 29 million passengers in 2025.
This is domestic travel for US citizens: no passport or visa is needed, but travelers 18 and over need a REAL ID-compliant license or another accepted ID to fly. Since May 7, 2025, TSA requires a REAL ID-compliant driver's license (star marking), an enhanced license, or an alternative such as a valid US passport or military ID at airport checkpoints. Travelers under 18 do not need ID when flying with a companion who has acceptable ID.
Summer highs average about 85 to 90 F from June to August. Spring and autumn are milder, with April highs near 68 F and October near 69 F.
Metro Silver Line from Dulles Airport station to Metro Center, about 53 minutes, standard distance-based Metro fare, no airport surcharge.
Washington, D.C. uses the US dollar (USD).
Flying out of Washington, D.C.? See destinations from Washington, D.C.
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.