IAD - BOS

$70 Find Cheap Flights from Washington Dulles Airport to Boston - Compare and Save

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Everything you should know

Cheapest round-trip
$134
Typical prices: $225-$387
Frontier
Sun 9/16Wed 9/19
IAD - BOS • 1 stop
Cheapest non-stop
$134
Typical prices: $223-$395
United Airlines
Wed 9/12Thu 9/13
IAD - BOS • Non-stop
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 45m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 85% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 22 weeks in advance save around 54% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $248 (round-trip)
Shortest trip • 4h 21m (one-way)
Insights
Insights
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Expert advice
Flight Deals

Cheap Flights from Dulles Intl to Boston (IAD-BOS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Boston

Wed, Sep 16 - Wed, Sep 23
Frontier Logo
11:12 am - 10:22 amIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
23h 10m1 stop Orlando
Frontier Logo
12:54 pm - 12:10 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
11h 16m1 stop Atlanta Hartsfield-Jackson
$134Frontier
Wed, Sep 16 - Sat, Sep 19
Frontier Logo
11:12 am - 10:22 amIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
23h 10m1 stop Orlando
Frontier Logo
12:54 pm - 12:10 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
11h 16m1 stop Atlanta Hartsfield-Jackson
$134Frontier
Wed, Oct 14 - Fri, Oct 16
United Airlines Logo
10:15 pm - 11:59 pmIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
1h 44mnonstop
United Airlines Logo
5:45 am - 7:20 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
1h 35mnonstop
$134United Airlines
Sun, Nov 15 - Mon, Nov 16
United Airlines Logo
8:40 am - 10:19 amIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
1h 39mnonstop
United Airlines Logo
5:30 am - 7:10 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
1h 40mnonstop
$134United Airlines
Sat, Sep 19 - Mon, Sep 21
United Airlines Logo
10:15 pm - 11:59 pmIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
1h 44mnonstop
United Airlines Logo
5:45 am - 7:20 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
1h 35mnonstop
$134United Airlines
Wed, Sep 16 - Wed, Sep 23
Frontier Logo
11:12 am - 10:22 amIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
23h 10m1 stop Orlando
Frontier Logo
12:54 pm - 12:10 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
11h 16m1 stop Atlanta Hartsfield-Jackson
$135Frontier
Fri, Oct 16 - Wed, Oct 21
JetBlue Logo
5:13 pm - 11:59 pmIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
6h 46m1 stop Detroit Metropolitan Wayne County
JetBlue Logo
9:15 am - 4:28 pmBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
7h 13m1 stop Detroit Metropolitan Wayne County
$247JetBlue
Fri, Oct 2 - Tue, Oct 6
Delta Logo
5:15 pm - 11:58 pmIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
6h 43m1 stop Detroit Metropolitan Wayne County
Delta Logo
5:35 am - 10:12 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
4h 37m1 stop Detroit Metropolitan Wayne County
$247Delta
Thu, Oct 29 - Tue, Nov 3
Delta Logo
6:32 pm - 11:05 pmIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
4h 33m1 stop New York John F Kennedy Intl
Delta Logo
1:35 pm - 5:33 pmBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
3h 58m1 stop New York John F Kennedy Intl
$247Delta
Sat, Oct 31 - Sun, Nov 1
Delta Logo
5:08 pm - 11:59 pmIAD  Washington, D.C. Dulles Intl-BOS Boston Logan Intl
6h 51m1 stop Detroit Metropolitan Wayne County
Delta Logo
5:39 am - 11:34 amBOS  Boston Logan Intl-IAD Washington, D.C. Dulles Intl
5h 55m1 stop Detroit Metropolitan Wayne County
$247Delta
Booking Insights

Price, demand and travel trends for Washington, D.C. Dulles Intl Airport to Boston flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Washington, D.C. Dulles Intl Airport to Boston with more confidence.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Boston?

Round-trip flights from Washington, D.C. Dulles Intl Airport to Boston start at $134. Prices are below average for this route right now, with typical round-trip fares ranging from $225 to $387. The lowest price found in the past 5 days was $134 on Frontier.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Boston?

Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Boston, it is 9% cheaper than the average day. Sunday is the most expensive day with flight prices 18% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Boston?

  • January is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Boston at $227 round-trip.
  • June ($395) and July ($381) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 74% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Washington, D.C. Dulles Intl Airport to Boston the cheapest?

Flights from Washington, D.C. Dulles Intl Airport to Boston are cheapest 22 weeks before departure. Booking in this window typically costs about 54% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Dulles Intl to Boston

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Key details for Washington, D.C. Dulles Intl Airport to Boston flights

Low season

January

Cheapest flight

$70
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Washington, D.C. Dulles Intl Airport to Boston

When to book flights from Dulles Intl to Boston

Are your dates flexible? Find out the best times to travel from Dulles Intl to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. Dulles Intl Airport to Boston flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Are there pet relief areas in Washington Dulles Airport?

    There are pet relief areas in Washington Dulles Airport. You can find them in the concourses near the security area, as well as in the baggage claim area. Your animal can take a bathroom break and stretch.

  • Can I get a car rental at Boston Logan International Airport?

    If you're looking for a convenient way to get from your flight to your final destination, renting a car at Boston Logan International Airport is the way to go. After you land and claim your luggage, head to the car rental counter at the airport and choose from an array of vehicles including luxury cars, SUVs, minivans, crossovers, and trucks. Companies include Hertz, Alamo, National, and Avis.

  • How can I get downtown from Boston Logan International Airport?

    Getting downtown from Boston Logan International Airport is easy, and there are several options to choose from. The easiest way would be to take the Silver Line bus that runs between the airport and South Station in Boston. The Silver Line is an express bus that will drop you off at South Station in just under 30min—and it drops off right across the street from TD Garden. Another option is taking the subway. The MBTA has a stop at each terminal and they run 24h a day, 7 days a week.

  • How can I get to Washington Dulles Airport from the city center?

    Washington Dulles Airport is 26 miles from the city center. It takes approximately 50min to get to the airport through the Metrobus Route 5A which will take you to Wiehle-Reston East Metrorail Station. At the station, you will take the Silver Line Express bus to the station. In case you want a quicker means of transportation, taking a taxi will get you to the airport within 30-40min.

  • Which airlines offer extra legroom and free seat selection on Washington, D.C. Dulles Intl Airport to Boston flights?

    Among airlines operating Washington, D.C. Dulles Intl Airport to Boston flights:

    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Washington, D.C. Dulles Intl Airport to Boston?

    Only United Airlines operates flights between Washington, D.C. Dulles Intl Airport and Boston.

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Boston?

    Flights from Washington, D.C. Dulles Intl Airport to Boston usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Boston Logan Intl (BOS).

  • Which airlines include bags at no extra cost on Washington, D.C. Dulles Intl Airport to Boston flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Boston?

    Four cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Boston:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from Washington, D.C. Dulles Intl Airport to Boston?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $248 round-trip via Tampa (TPA), compared to $297 for nonstop.

  • What is the standard checked-bag allowance on flights from Washington, D.C. Dulles Intl Airport to Boston?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Washington, D.C. Dulles Intl Airport to Boston?

    The Boeing 737 MAX 9 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Embraer 175 variants.

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Boston pass through?

    One-stop flights from Washington, D.C. Dulles Intl Airport to Boston most commonly connect through:

    • Newark (EWR) - 83% of one-stop connections
    • Tampa (TPA) - 11% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 6% of one-stop connections

    Newark (EWR) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Boston?

    Yes. Being flexible with your travel dates can save you up to 24% on the Washington, D.C. Dulles Intl Airport to Boston route. Wednesday is the cheapest departure day at $268 round-trip on average, while Sunday is the most expensive at $349, a difference of $81. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from Washington, D.C. Dulles Intl Airport to Boston?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. Dulles Intl Airport to Boston route, 15% of flights were delayed in the past 3 months, with delays averaging 2 hours 3 minutes.

  • How are flight departures from Washington, D.C. Dulles Intl Airport to Boston spread across the day?

    Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Boston flights, with 25% of flights leaving in that window. Afternoon departures account for 25%, evening flights for 25%, and night flights for 25%.

  • What popular places can I visit in Boston?

    Some of the most popular sights in Boston are Fenway Park, TD Garden and South Station. These are among the most viewed places in Boston on KAYAK.

  • What are the earliest and latest flights from Washington, D.C. Dulles Intl Airport to Boston?

    These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Boston:

    • Earliest: departs at 8:35 am and lands at 10:20 am
    • Latest: departs at 10:25 pm and lands at 12:10 am.

    The flight takes about 1h 45m.

  • How expensive are last-minute Washington, D.C. Dulles Intl Airport to Boston flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 21% above the route average of $294. Book 22 weeks before departure for the lowest fares.

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Boston?

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Boston takes 1h 45m, covering 411 miles.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Boston?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Washington, D.C. Dulles Intl Airport to Boston changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $134 to $1,149. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Boston looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Boston are currently lower than usual. Average one-way flight prices are about $90, which is 51% below the typical average for this route.

  • How does United Airlines’s on-time performance compare to other airlines on Washington, D.C. Dulles Intl Airport to Boston flights?

    United Airlines is the only airline operating Washington, D.C. Dulles Intl Airport to Boston flights. 85% of its flights are on time.

  • How do delay rates compare for morning and evening flights from Washington, D.C. Dulles Intl Airport to Boston?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from Washington, D.C. Dulles Intl Airport to Boston?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 4h 21m, compared with 4h 54m via New York John F Kennedy Intl (JFK) and 10h 03m via Tampa (TPA).

  • What car rental options are available at Boston Logan Intl Airport (BOS)?

    Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:
    · Dollar
    · Hertz
    · Budget
    · Thrifty
    · Sixt

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Boston flight?

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Boston range from $225 to $387, with an average of $294 over the past 12 months. Anything below $225 counts as a good deal.

Your guide to booking Washington, D.C. Dulles Intl Airport to Boston flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average $268 - about $81 less than Sunday (23% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 22 weeks before you fly. On this route, that window historically saves about 54% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Boston trip for January. Fares historically average $227 round-trip in that month - typically $168 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Tampa Airport (TPA) can be cheaper than flying direct. The cheapest layover option averages $248 round-trip on this route - about $48 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boston Logan Intl Airport.
    - Embassy Suites by Hilton Boston at Logan Airport
    - Hilton Garden Inn Boston Logan Airport
    - Hyatt Regency Boston Harbor
  • United Airlines offers a wide selection of in-flight entertainment options on their flights. United’s system, LiveTV, offers more than 10,000h of programming. With interactive seat-back video touchscreens and wireless connectivity available for select aircraft classes, customers can choose from a variety of exciting programming options that bring the best in entertainment to their flights.
  • Accessibility Services of Washington Dulles Airport (IAD) boasts a wide variety of wheelchairs, access and other transportation options so that you can get to your gate more quickly and easily.
  • If you're flying out of Boston Logan International Airport (BOS), the airport has a great selection of lounges for your comfort and relaxation. The American Airlines Admirals Club is one of the most popular places to unwind and relax, as it offers a wide variety of amenities, including Wi-Fi, newspapers and magazines, television, food and drinks, and business facilities.
  • Located in terminals B, C and E, the business center at Boston Logan International Airport offers a variety of services to help you stay on top of your work while you're away from the office. The business center has computers with printers available for use as well as photocopiers, scanners, and fax machines. You can also find complimentary Wi-Fi access at the terminals.
  • The Washington Dulles Airport Marriott offers the perfect place for you to rest your head before your flight. The hotel is conveniently located only 0.3 miles and offers a free shuttle to the airport.

Prefer to fly direct from Washington Dulles Airport to Boston?

 
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Boston Logan Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Boston Logan Intl to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Everything you need to know for your flight from Dulles Intl to Boston

Information on your arrival and departure airports