$59 Cheap Flights from Boston (BOS) to Washington (IAD)

View $59 flight on Thu, Jan 1, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Boston to Washington (BOS-IAD)

Prices were available within the past 7 days and start at $59 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jan 17 - Tue, Jan 20
BOS
Boston
IAD
Washington
$117 Roundtrip, found 3 hours ago
$117
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Jan 17 from Boston to Washington, returning Tue, Jan 20, priced at $117 found 3 hours ago
Frontier Airlines
Mon, Nov 17 - Thu, Nov 27
BOS
Boston
IAD
Washington
$120 Roundtrip, found 13 hours ago
$120
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Mon, Nov 17 from Boston to Washington, returning Thu, Nov 27, priced at $120 found 13 hours ago
United
Wed, Dec 31 - Thu, Jan 1
BOS
Boston
IAD
Washington
$122 Roundtrip, found 7 hours ago
$122
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Dec 31 from Boston to Washington, returning Thu, Jan 1, priced at $122 found 7 hours ago
United
Wed, Dec 24 - Wed, Dec 31
BOS
Boston
IAD
Washington
$124 Roundtrip, found 19 hours ago
$124
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Dec 24 from Boston to Washington, returning Wed, Dec 31, priced at $124 found 19 hours ago
United
Wed, Dec 24 - Thu, Dec 25
BOS
Boston
IAD
Washington
$124 Roundtrip, found 7 hours ago
$124
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Dec 24 from Boston to Washington, returning Thu, Dec 25, priced at $124 found 7 hours ago
United
Sun, Jan 18 - Thu, Jan 22
BOS
Boston
IAD
Washington
$127 Roundtrip, found 1 hour ago
$127
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Jan 18 from Boston to Washington, returning Thu, Jan 22, priced at $127 found 1 hour ago
United
Thu, Dec 25 - Thu, Jan 1
BOS
Boston
IAD
Washington
$129 Roundtrip, found 19 hours ago
$129
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Dec 25 from Boston to Washington, returning Thu, Jan 1, priced at $129 found 19 hours ago
United
Tue, Dec 16 - Thu, Dec 25
BOS
Boston
IAD
Washington
$129 Roundtrip, found 15 hours ago
$129
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Dec 16 from Boston to Washington, returning Thu, Dec 25, priced at $129 found 15 hours ago
United
Wed, Dec 17 - Thu, Dec 25
BOS
Boston
IAD
Washington
$132 Roundtrip, found 17 hours ago
$132
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Dec 17 from Boston to Washington, returning Thu, Dec 25, priced at $132 found 17 hours ago
Delta
Fri, Dec 12 - Mon, Jan 5
BOS
Boston
IAD
Washington
$245 Roundtrip, found 1 hour ago
$245
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Dec 12 from Boston to Washington, returning Mon, Jan 5, priced at $245 found 1 hour ago

Find the cheapest month to fly from Boston (BOS) to Washington (IAD)

September is typically the cheapest month to fly

From $117 - $162 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $137
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $137

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight from $59 or cheap return flight from $117 from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from BOS to IAD is January, when there's less demand. Off-peak months are generally when airlines offer better prices between these airports.
Which airlines fly direct from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
You can fly directly from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) on a United Airlines flight.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from BOS to IAD. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
Every day on average, 4 nonstop flights operate from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD). Choose the departure date that works for you.
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
More travelers fly between BOS and IAD at 9 AM than at any other point in the day. Looking to skip the crowds? Consider flying outside peak hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from BOS to IAD?
Friday has the most flights from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
Logan Intl. Airport (BOS)'s first flight to Washington Dulles Intl. Airport (IAD) departs at approximately 5:45AM UTC-5. With a travel time of 1h 46m, you'll land at around 7:31AM UTC-5.
How long does it take to fly from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
Flights from BOS to IAD have an average travel time of 1 hour and 45 minutes. The distance between the two is 410 mi.
What airline has the least delays from BOS to IAD?
With 100% of journeys usually landing on schedule, Lufthansa has the best on-time performance for direct flights from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD). To check your flight status and get notifications if anything changes, use the Expedia App.
What is the best time to fly from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
Book a flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Logan Intl. Airport (BOS)?
You can arrive at any one of these Washington airports following your direct flight from Logan Intl. Airport (BOS):

  • Ronald Reagan Washington National Airport (DCA)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)
  • Washington Dulles Intl. Airport (IAD)

Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from BOS to IAD shortly before your journey is generally more expensive. But if you're flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a BOS to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOS to IAD flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of planning your trip. Just secure your flights and choose from our wide range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Washington Dulles Intl. Airport (IAD)?
Typically, you can reschedule or cancel your BOS to IAD flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more information, visit our Customer Service portal.

Travel information

Origin airport
Logan Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$117
Distance
411 mi
Average flight time
1 hour 45 mins

Book with confidence

Boston to Washington Flights

The cheapest times to fly from Boston to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Washington are during the month of January. You can find some of the cheapest flights from Boston to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Washington

Sunday is one of the best days to book for cheap flights from Boston to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $59 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to Washington Flights

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*Available to One Key members.