$81 Cheap Flights from Washington (IAD) to Boston (BOS)

View $81 flight on Wed, Jul 2, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Boston (IAD-BOS)

Prices were available within the past 7 days and start at $81 for one-way flights and $161 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 24 - Sun, May 25
IAD
Washington
BOS
Boston
$161 Roundtrip, just found
$161
Roundtrip
just found
Select United flight, departing Sat, May 24 from Washington to Boston, returning Sun, May 25, priced at $161 just found
United
Fri, Jul 4 - Mon, Jul 14
IAD
Washington
BOS
Boston
$164 Roundtrip, found 1 hour ago
$164
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jul 4 from Washington to Boston, returning Mon, Jul 14, priced at $164 found 1 hour ago
Frontier Airlines
Thu, May 15 - Sun, May 25
IAD
Washington
BOS
Boston
$166 Roundtrip, found 1 hour ago
$166
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, May 15 from Washington to Boston, returning Sun, May 25, priced at $166 found 1 hour ago
United
Tue, Jul 1 - Fri, Jul 4
IAD
Washington
BOS
Boston
$167 Roundtrip, found 16 hours ago
$167
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Jul 1 from Washington to Boston, returning Fri, Jul 4, priced at $167 found 16 hours ago
United
Fri, Jul 25 - Mon, Jul 28
IAD
Washington
BOS
Boston
$167 Roundtrip, just found
$167
Roundtrip
just found
Select United flight, departing Fri, Jul 25 from Washington to Boston, returning Mon, Jul 28, priced at $167 just found
United
Sun, May 25 - Tue, May 27
IAD
Washington
BOS
Boston
$169 Roundtrip, found 18 hours ago
$169
Roundtrip
found 18 hours ago
Select United flight, departing Sun, May 25 from Washington to Boston, returning Tue, May 27, priced at $169 found 18 hours ago
Frontier Airlines
Thu, May 15 - Mon, May 19
IAD
Washington
BOS
Boston
$170 Roundtrip, found 1 hour ago
$170
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, May 15 from Washington to Boston, returning Mon, May 19, priced at $170 found 1 hour ago
United
Tue, Jul 1 - Fri, Jul 4
IAD
Washington
BOS
Boston
$171 Roundtrip, found 16 hours ago
$171
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Jul 1 from Washington to Boston, returning Fri, Jul 4, priced at $171 found 16 hours ago
Delta
Wed, Jun 4 - Sat, Jun 7
IAD
Washington
BOS
Boston
$247 Roundtrip, just found
$247
Roundtrip
just found
Select Delta flight, departing Wed, Jun 4 from Washington to Boston, returning Sat, Jun 7, priced at $247 just found
American Airlines
Sat, Jul 12 - Tue, Jul 15
IAD
Washington
BOS
Boston
$253 Roundtrip, just found
$253
Roundtrip
just found
Select American Airlines flight, departing Sat, Jul 12 from Washington to Boston, returning Tue, Jul 15, priced at $253 just found

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) cost?
Cheap round-trip flights from Washington Dulles Intl. Airport (IAD) to Logan Intl. Airport (BOS) start from $119. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United and Spirit Airlines flight leaving IAD on May 14 2025 and touching down at BOS. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from IAD to BOS?
The cheapest flights from IAD to BOS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 IAD to BOS?
Right now, the cheapest airline operating one-way flights from IAD to BOS is United. You can book a seat on this route from $81. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on July 4 2025. Prices were last updated on April 22 2025 and have not changed since.
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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