United States · low fares
Cheap flights to Washington, D.C.
The lowest fares to Washington, D.C., United States on Expedia Flights. Compare every major carrier, see the cheapest weekday for your route, and book without add-on fees at checkout.
- ✓Lowest available fares to Washington, D.C. across every major airline
- ✓Cheapest-weekday view — see when to fly for the best price
- ✓One-way, round-trip, or multi-city — flexible cabin filters
- ✓No add-on fees at checkout · Powered by Expedia Flights
What things cost in Washington, D.C.
Free museums are the budget story, so a full day of Smithsonians costs only lunch. Metro rides run $2.25 to $6.75 by distance and hour, with a flat bus fare just over $2. A half-smoke with fries at Ben's is around $12, and a shared Ethiopian platter on Ninth Street feeds two for roughly $40. Capital Bikeshare day passes are a cheap way to cross the Mall repeatedly.
What first-timers get wrong in Washington, D.C.
Stand right and walk left on Metro escalators, because locals will say something. Fares are distance and time based, from $2.25 to $6.75 on weekdays and capped near $2.50 at weekends and after 9:30pm, and you can tap a contactless card rather than buy SmarTrip. The $1 DC Circulator was shut down at the end of 2024, so older guidebooks mislead. Every museum has an airport-style bag screening queue.
What's actually worth your time in Washington, D.C.
Every monument on the Mall is free and open around the clock, and the Lincoln and Korean War memorials are better at eleven at night than at noon. Washington Monument tickets are free but carry a $1 booking fee on recreation.gov and vanish within minutes of the 10am release. Capitol tours require advance booking through a representative's office. Arlington National Cemetery is a two-hour walk with real hills.
When the weather turns in Washington, D.C.
Washington is unusually easy in bad weather because so much is free and enclosed. The Library of Congress Jefferson Building connects to the Capitol Visitor Center by tunnel, and its Great Hall is the most ornate room in the city. The National Building Museum's Great Hall dwarfs everything around it. Summer storms are short and steamy, while winter ice shuts the region faster than the snowfall totals suggest.
Washington, D.C.'s museums, and which one to pick
Nineteen Smithsonian museums charge nothing, which makes this unlike any other American city. Air and Space on the Mall and the National Museum of African American History and Culture both need free timed passes, released thirty days ahead at 10am eastern. The National Gallery, also free, is separate from the Smithsonian and holds the only Leonardo in the Americas. The paid exceptions are the Spy Museum and Planet Word.
When to go to Washington, D.C.
| Best months for cheap-flights | Avg daily high | Rain days |
|---|---|---|
| October | 20°C / 68°F | 8 days |
| May | 23°C / 73°F | 11 days |
| September | 26°C / 79°F | 11 days |
The month to avoid is January — around 7°C (45°F) with roughly 9 rain days. Prices and crowds track the weather here: October is the sweet spot, January the month most people skip.
Pack for peak season: Layers — t-shirts under a light jacket or sweater, A packable rain shell or compact umbrella earns its space, Comfortable walking shoes — every guide on this site assumes you'll use them.
Where to base yourself in Washington, D.C.
- Georgetown — Historic cobbled streets, M Street shopping, canal walks, Sunday brunch.
- Dupont Circle — Bookshops, embassy row, indie cafés, walkable to museums and bars.
- U Street / 14th Street — Live music history, top restaurants, the busy nightlife corridor.