₩138,100 Cheap Flights from Boston (BOS) to Washington (IAD)

View ₩138,100 flight on Tue, Sep 30, 2025Opens in a new window

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

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Cheap Flights from Boston to Washington (BOS-IAD)

Prices were available within the past 7 days and start at ₩138,100 for one-way flights and ₩276,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 23 - Tue, Sep 30
BOS
Boston
IAD
Washington
₩276,000 Roundtrip, found 10 hours ago
₩276,000
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Sep 23 from Boston to Washington, returning Tue, Sep 30, priced at ₩276,000 found 10 hours ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩276,700 Roundtrip, found 1 day ago
₩276,700
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩276,700 found 1 day ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩290,300 Roundtrip, found 1 day ago
₩290,300
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩290,300 found 1 day ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩303,900 Roundtrip, found 1 day ago
₩303,900
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩303,900 found 1 day ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩309,800 Roundtrip, found 1 day ago
₩309,800
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩309,800 found 1 day ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩316,900 Roundtrip, found 1 day ago
₩316,900
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩316,900 found 1 day ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩323,400 Roundtrip, found 1 day ago
₩323,400
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩323,400 found 1 day ago
United
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩330,500 Roundtrip, found 1 day ago
₩330,500
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩330,500 found 1 day ago
Delta
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩342,700 Roundtrip, found 1 day ago
₩342,700
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩342,700 found 1 day ago
American Airlines
Mon, Sep 22 - Tue, Sep 23
BOS
Boston
IAD
Washington
₩386,200 Roundtrip, found 1 day ago
₩386,200
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Sep 22 from Boston to Washington, returning Tue, Sep 23, priced at ₩386,200 found 1 day ago

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

September is typically the cheapest month to fly

From ₩153,778 - ₩240,651 per traveler.

Graph displaying average flight prices per month

Flights from Boston (BOS) to Washington (IAD)
Origin airport
Logan Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
₩276,000
Distance
657 km
Average flight time
1 hour 41 mins

Boston to Chantilly Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Boston to Chantilly will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Chantilly.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with BOS to IAD flights that won’t make your bank account wince. Ready to temporarily leave behind Boston for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to IAD with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from BOS to Dulles Intl. Airport?
The lowest price advertised for a round-trip journey between BOS and Dulles Intl. Airport is ₩276,000. But you better move fast. This figure is based on fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport (BOS) to IAD?
This can differ between airlines, as each has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find simple instructions on how to cancel your flight online.
How do I find cheap flights from BOS to Dulles Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BOS to Dulles Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from BOS to Dulles Intl. Airport?
With a flight distance of 660 kilometers, it's just a hop from Logan Intl. Airport (BOS) to Dulles Intl. Airport. It might be a quick flight, but it's still worth bringing something to keep you busy on board.
Which airlines fly direct from BOS to Washington Dulles Intl. Airport (IAD)?
United Airlines (UA) will take you from BOS to IAD safely and comfortably. You can choose from 121 flights every month on this route.
Are BOS to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to score an amazing last-minute deal from BOS to IAD, but it can also be hit-or-miss. As many airlines advertise prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares carrier prices and updates flight deals all the time, so you can feel confident knowing you're always seeing the latest offers.

Explore a world of travel with Expedia

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₩193,300

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