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

Cheap Flights from Washington to Boston (IAD-BOS)

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
Wed, Feb 18 - Sat, Feb 21
IAD
Washington
BOS
Boston
$117 Roundtrip, found 9 hours ago
$117
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Feb 18 from Washington to Boston, returning Sat, Feb 21, priced at $117 found 9 hours ago
United
Thu, Nov 27 - Thu, Dec 4
IAD
Washington
BOS
Boston
$120 Roundtrip, found 9 hours ago
$120
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Nov 27 from Washington to Boston, returning Thu, Dec 4, priced at $120 found 9 hours ago
Frontier Airlines
Thu, Nov 13 - Sat, Nov 15
IAD
Washington
BOS
Boston
$120 Roundtrip, found 4 hours ago
$120
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Washington to Boston, returning Sat, Nov 15, priced at $120 found 4 hours ago
United
Thu, Nov 27 - Tue, Dec 2
IAD
Washington
BOS
Boston
$122 Roundtrip, found 2 hours ago
$122
Roundtrip
found 2 hours ago
Select United flight, departing Thu, Nov 27 from Washington to Boston, returning Tue, Dec 2, priced at $122 found 2 hours ago
United
Wed, Dec 31 - Thu, Jan 1
IAD
Washington
BOS
Boston
$124 Roundtrip, found 22 hours ago
$124
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Dec 31 from Washington to Boston, returning Thu, Jan 1, priced at $124 found 22 hours ago
United
Wed, Dec 24 - Thu, Jan 1
IAD
Washington
BOS
Boston
$124 Roundtrip, found 7 hours ago
$124
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Dec 24 from Washington to Boston, returning Thu, Jan 1, priced at $124 found 7 hours ago
United
Mon, Dec 15 - Thu, Jan 1
IAD
Washington
BOS
Boston
$126 Roundtrip, found 5 days ago
$126
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 15 from Washington to Boston, returning Thu, Jan 1, priced at $126 found 5 days ago
United
Tue, Dec 9 - Wed, Dec 10
IAD
Washington
BOS
Boston
$127 Roundtrip, found 2 hours ago
$127
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Dec 9 from Washington to Boston, returning Wed, Dec 10, priced at $127 found 2 hours ago
United
Tue, Dec 16 - Wed, Dec 24
IAD
Washington
BOS
Boston
$129 Roundtrip, found 7 hours ago
$129
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Dec 16 from Washington to Boston, returning Wed, Dec 24, priced at $129 found 7 hours ago
Delta
Mon, Dec 8 - Thu, Dec 18
IAD
Washington
BOS
Boston
$245 Roundtrip, found 3 hours ago
$245
Roundtrip
found 3 hours ago
Select Delta flight, departing Mon, Dec 8 from Washington to Boston, returning Thu, Dec 18, priced at $245 found 3 hours ago

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

September is typically the cheapest month to fly

From $117 - $159 per traveler.

Alternative airports near Boston

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

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $137
BOS
Logan Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $137

Washington to Boston Flights

The cheapest times to fly from Washington to Boston

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 Washington to Boston are during the month of February. You can find some of the cheapest flights from Washington to Boston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Boston

Sunday is one of the best days to book for cheap flights from Washington to Boston: 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 Washington to Boston

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 Washington to Boston 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 Washington to Boston 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 Washington to Boston 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) cost?
Snag a cheap one-way flight from $59 or cheap return flight from $117 from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
Traveling in February may help you find better deals, as it's the cheapest month for flights between IAD and BOS. You'll typically find the lowest prices during off-peak months.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
When jetting out of Washington Dulles Intl. Airport (IAD), you can catch a nonstop flight to Logan Intl. Airport (BOS) with United Airlines.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
To find the cheapest airline flying from IAD to BOS, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
With, on average, 4 nonstop flights departing from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) each day, you'll be taking off on vacation soon enough.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
More passengers fly between IAD and BOS at 8 AM than at any other point in the day. Looking to skip the crowds? Travel outside of rush hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from IAD to BOS?
Fly on a Friday if you're looking for the best choice of flights from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS).
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
Washington Dulles Intl. Airport (IAD)'s earliest flight to Logan Intl. Airport (BOS) takes off at approximately 8:20AM UTC-5. With a total flight time of 1h 35m, you'll touch down at around 9:55AM UTC-5.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
It usually takes 1 hour and 35 minutes to fly the 410 mi from IAD to BOS.
What airline has the least delays from IAD to BOS?
Delta Air Lines has the best track record for on-time direct flights from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS), with an on-time rating of 100%. Use the Expedia App to see your flight status before you take off and receive notifications about any changes.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
Opt for a flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**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 Boston from Washington Dulles Intl. Airport (IAD)?
Board a direct flight from Washington Dulles Intl. Airport (IAD) to Boston and touch down at Logan Intl. Airport (BOS). Another convenient gateway to the city is T.F. Green Airport (PVD).
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) last-minute?
Last-minute bookings from IAD to BOS are typically more expensive. To secure the lowest prices, start looking for flights ahead of time. That being said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book an IAD to BOS flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAD to BOS flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of travel planning. Just secure your flights and select from our extensive range of stays, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS)?
If you reserved your IAD to BOS flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.