
Book Cheap United flight from Boston (BOS) to Washington (DCA) from CA $184
Find The Best Day to Book a Cheap United Flights From Boston to Washington
Cheapest United Flights from Boston (BOS) to Washington (DCA)
The cheapest flights to Ronald Reagan Washington National found within the past 7 days were round trip and CA $184 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great United flight from BOS to DCA
To find a great deal on United flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying United Boston to Washington gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with United between Boston and Washington
United has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Boston to Washington with United are March.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your United flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to Washington

Hilton Garden Inn Reagan National Airport
Everything I wanted, nothing I didn't.
Reviewed on Dec 4, 2025

Hampton Inn & Suites Arlington Crystal City DCA
Staff very helpful
Reviewed on Dec 8, 2025

AC Hotel by Marriott Arlington National Landing
Clean room, easy check in/out. Good location, 10-15 minutes to DC. Would definitely stay again
Reviewed on Dec 7, 2025
Want more than a(n) United Flight from Boston to Washington?
Popular United Flight Routes from BOS
Domestic
- Vancouver to Seoul (YVR - ICN)
- Regina to Tampa (YQR - TPA)
- Calgary to Reno (YYC - RNO)
- Toronto to Punta Cana (YYZ - PUJ)
- Toronto to Delhi (YYZ - DEL)
- Calgary to Sioux Falls (YYC - FSD)
- Toronto to Tampa (YYZ - TPA)
- Toronto to Reno (YYZ - RNO)
- Montreal to Las Vegas (YUL - LAS)
- Calgary to Las Vegas (YYC - LAS)
International
- Toronto to Reno (YYZ - RNO)
- Regina to Tampa (YQR - TPA)
- Boston to Dubai (BOS - DXB)
- Montreal to Rapid City (YUL - RAP)
- Calgary to Las Vegas (YYC - LAS)
- Montreal to Las Vegas (YUL - LAS)
- Saint John to Rapid City (YSJ - RAP)
- Halifax to Dubai (YHZ - DXB)
- Halifax to Dubai (YHZ - DXB)
- Toronto to Reno (YYZ - RNO)
Most Popular
- YVR - PSP
- YVR - LAS
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- BUF - DFW
- YVR - FLL
- Delta Detroit (DTW) to Las Vegas (LAS) flights
- BUF - MYR
- DTW - FLL
- FLL - YYZ
- YVR - SAN
- DTW - MYR
- YYZ - SEA
- YYZ - DFW
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- YYZ - PHL
- STL - GUF
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- YYZ - LAS
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- Delta Buffalo (BUF) to Las Vegas (LAS) flights
- SEA - DEL