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Dulles Intl

$75+ Cheap flights from New Hampshire to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — IAD
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from New Hampshire to Dulles Intl

Cheapest flights from New Hampshire to Dulles Intl
Explore the most affordable flight options available from New Hampshire to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:30 amPWM - IAD
Nonstop2h 00mUnited Airlines
Wed 1/2812:46 pmIAD - PWM
Nonstop1h 45mUnited Airlines
Deal found 12/24$217
This United Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:32 pmBOS - IAD
1 stop3h 34mUnited Airlines
Thu 1/19:00 amIAD - BOS
Nonstop1h 37mUnited Airlines
Deal found 12/25$217
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:44 pmBOS - IAD
Nonstop1h 46mUnited Airlines
Sat 1/310:17 pmIAD - BOS
Nonstop1h 37mUnited Airlines
Deal found 12/24$232
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:28 pmBOS - IAD
1 stop4h 26mUnited Airlines
Sun 1/410:17 pmIAD - BOS
Nonstop1h 37mUnited Airlines
Deal found 12/24$242
This United Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:28 pmBOS - IAD
1 stop4h 26mUnited Airlines
Fri 1/25:10 pmIAD - BOS
1 stop5h 38mUnited Airlines
Deal found 12/25$252
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:30 amPWM - IAD
Nonstop2h 00mUnited Airlines
Wed 12/3110:13 pmIAD - PWM
Nonstop1h 46mUnited Airlines
Deal found 12/23$262
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:20 amBOS - IAD
Nonstop1h 46mUnited Airlines
Sat 1/310:17 pmIAD - BOS
Nonstop1h 37mUnited Airlines
Deal found 12/24$274
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:19 amPWM - IAD
Nonstop2h 01mUnited Airlines
Tue 12/305:10 pmIAD - PWM
Nonstop1h 41mUnited Airlines
Deal found 12/23$275
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:26 pmMHT - IAD
Nonstop2h 03mUnited Airlines
Sun 1/412:07 pmIAD - MHT
Nonstop1h 41mUnited Airlines
Deal found 12/24$279
This United Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:46 pmPWM - IAD
1 stop4h 20mUnited Airlines
Thu 1/18:20 amIAD - PWM
1 stop5h 19mUnited Airlines
Deal found 12/25$282
This United Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:44 pmBOS - IAD
Nonstop1h 46mUnited Airlines
Wed 12/315:10 pmIAD - BOS
Nonstop1h 38mUnited Airlines
Deal found 12/25$282
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:32 pmBOS - IAD
1 stop3h 34mUnited Airlines
Sun 1/410:17 pmIAD - BOS
Nonstop1h 37mUnited Airlines
Deal found 12/24$284

Find flight deals from New Hampshire to Dulles Intl

Keep the following information in mind while searching for New Hampshire to Dulles Intl flight deals. Data was last updated December 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$147
(United Airlines)

One-way from

$75
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$207

Good round-trip deal

$249 or less

Good one-way deal

$177 or less
Provider with most accurate pricing for Boston Logan Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Washington, D.C. (WAS) flights.
Search Deals
From New Hampshire to Washington, D.C. Dulles Intl
Search Deals
One-way flight from New Hampshire to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from New Hampshire to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from New Hampshire to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from New Hampshire to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from New Hampshire to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

New Hampshire

Fly to

Dulles Intl

Route

Depart

Return

Price

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sat 2/7

9:30 am-11:16 am

Nonstop1h 46m

Washington, D.C. Dulles Intl

Sat 2/7

10:12 pm-11:49 pm

Nonstop1h 37m

$147

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Wed 1/21

2:20 pm-4:06 pm

Nonstop1h 46m

Washington, D.C. Dulles Intl

Wed 1/28

8:29 am-1:13 pm

1 stop4h 44m

$157

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Fri 1/23

9:30 am-11:16 am

Nonstop1h 46m

Washington, D.C. Dulles Intl

Sun 1/25

10:12 pm-11:49 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Fri 2/6

7:07 pm-8:53 pm

Nonstop1h 46m

Washington, D.C. Dulles Intl

Sun 2/8

12:40 pm-2:17 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Mon 2/2

2:20 pm-4:06 pm

Nonstop1h 46m

Washington, D.C. Dulles Intl

Thu 2/5

12:40 pm-2:17 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sun 3/1

5:30 am-7:14 am

Nonstop1h 44m

Washington, D.C. Dulles Intl

Wed 3/4

12:36 pm-2:12 pm

Nonstop1h 36m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Fri 3/20

5:45 am-7:29 am

Nonstop1h 44m

Washington, D.C. Dulles Intl

Mon 3/23

10:20 pm-11:57 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sat 1/17

4:05 pm-9:22 pm

1 stop5h 17m

Washington, D.C. Dulles Intl

Sun 1/18

12:40 pm-2:17 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sat 3/21

5:45 am-7:29 am

Nonstop1h 44m

Washington, D.C. Dulles Intl

Mon 3/23

10:20 pm-11:57 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Fri 1/16

6:17 pm-11:18 pm

1 stop5h 01m

Washington, D.C. Dulles Intl

Sat 1/17

10:12 pm-11:49 pm

Nonstop1h 37m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 59 results
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Best time to book a flight from New Hampshire to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from New Hampshire with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New Hampshire to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport?

Currently, March is the cheapest month in which you can book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport (average of $184). Flying from New Hampshire to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $249). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from NH to IAD?

Find hourly flight availability from New Hampshire to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.

It’s optimal to fly from New Hampshire to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from New Hampshire to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from New Hampshire to Dulles Intl. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their New Hampshire to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from New Hampshire to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from New Hampshire to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 26, 2025.

The most flights from USNH to IAD are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from New Hampshire to Washington, D.C. Dulles Intl Airport?

    United Airlines, Delta, and American Airlines can get you from New Hampshire to Washington, D.C. Dulles Intl Airport in just under 1h 46m. Your travel time can differ by up to 17h 11m. The distance between New Hampshire and Washington, D.C. Dulles Intl Airport is about 411 mi. This flight may include one or multiple stops.

  • What are the most popular routes from New Hampshire to Washington, D.C. Dulles Intl Airport?

    While some choose either Portland - Washington, D.C. Dulles Intl or Manchester - Washington, D.C. Dulles Intl, Boston Logan Intl - Washington, D.C. Dulles Intl is the most popular route from New Hampshire to Washington, D.C. Dulles Intl Airport.

  • What are the cheapest flights from New Hampshire to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $306 for a flight from New Hampshire to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $122 while the most popular route, (Boston Logan Intl - Washington, D.C. Dulles Intl) is currently priced at $147.

  • Can I find deals for flights from New Hampshire to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on New Hampshire to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Hampshire to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Hampshire to Dulles Intl.

  • Can I find deals for business class flights from New Hampshire to Dulles Intl?

    Yes. Cheapflights offers flight deals from New Hampshire to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport (average of $184). Flying from New Hampshire to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $249). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for New Hampshire to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Reagan-National flights
Atlanta to Baltimore flights
Dallas/Fort Worth to Baltimore flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
Dallas/Fort Worth to Reagan-National flights
Atlanta to Dulles Intl flights
Seattle to Reagan-National flights
Atlanta to Reagan-National flights
O'Hare Intl to Reagan-National flights
Boston to Baltimore flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Baltimore flights
Orlando to Dulles Intl flights
Boston to Reagan-National flights
Seattle to Dulles Intl flights
San Francisco to Reagan-National flights
Tampa to Dulles Intl flights
Denver to Dulles Intl flights
Orlando to Reagan-National flights
Denver to Baltimore flights
Fort Lauderdale to Baltimore flights
Orlando to Baltimore flights
Hobby to Dulles Intl flights
Miami to Dulles Intl flights
Boston to Dulles Intl flights
San Francisco to Baltimore flights
Hobby to Reagan-National flights
Miami to Baltimore flights
Seattle to Baltimore flights
San Francisco to Dulles Intl flights
Tampa to Reagan-National flights
Minneapolis to Reagan-National flights
Minneapolis to Dulles Intl flights
Hobby to Baltimore flights
George Bush Intcntl to Reagan-National flights
Denver to Reagan-National flights
Tampa to Baltimore flights
Minneapolis to Baltimore flights
Detroit to Dulles Intl flights
Sky Harbor Intl to Dulles Intl flights
George Bush Intcntl to Dulles Intl flights
George Bush Intcntl to Baltimore flights
Detroit to Reagan-National flights
Miami to Reagan-National flights
Detroit to Baltimore flights
Fort Lauderdale to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
John F Kennedy Intl to Reagan-National flights

Top airline flying from New Hampshire to Dulles Intl

Discover the top airline that operate flights from New Hampshire to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$274FlexibilityNo cancel feeOn-time69%

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