What are the cheapest airlines to fly from New Hampshire to Washington, D.C. Dulles Intl Airport one-way?

One-way options have recently been found by users for as low as $77 on United Airlines. Other airlines that offer cheap prices include American Airlines from $99 and Delta from $151 one-way.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 $343 for a flight from New Hampshire to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $106 while the most popular route, (Boston Logan Intl - Washington, D.C. Dulles Intl) is currently priced at $122.

How far in advance should I book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 36 days in advance, which can save you up to 75% on flights from New Hampshire to Washington, D.C. Dulles Intl Airport compared to booking the week you need them. Waiting 36 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $187. For sooner than that we have options available in the next 3 days from $334.

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

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, January can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from New Hampshire in January are about $198 on average during January, but can be found for as low as $65.

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.

$77+ Flights from New Hampshire to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from New Hampshire to Dulles Intl

Round-trip from	$157 (United Airlines)
One-way from	$77 (United Airlines)
Popular in	November
Cheapest in	January
Average price	$197
Good round-trip deal	$281 or less
Good one-way deal	$139 or less

From New Hampshire to Washington, D.C. Dulles Intl

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One-way flight from New Hampshire to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from New Hampshire to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from New Hampshire to Washington, D.C. Dulles Intl.

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Find 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 September 15, 2025.

Thu 10/210:34 amBOS - IAD

1 stop5h 31mUnited Airlines

Sun 10/56:15 amIAD - BOS

1 stop4h 53mUnited Airlines

Deal found 9/15

$157

Thu 10/165:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Sun 10/198:30 amIAD - BOS

1 stop4h 55mUnited Airlines

Deal found 9/14

$158

Fri 10/319:23 amBOS - IAD

1 stop10h 28mFrontier

Sun 11/28:36 pmIAD - BOS

1 stop11h 52mFrontier

Deal found 9/13

$160

Thu 10/95:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Sat 10/1110:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/15

$161

Thu 10/95:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Tue 10/1410:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/13

$162

Sat 10/187:08 pmBOS - IAD

Nonstop1h 44mUnited Airlines

Sun 10/196:15 amIAD - BOS

1 stop4h 53mUnited Airlines

Deal found 9/15

$163

Tue 10/710:34 amBOS - IAD

1 stop5h 31mUnited Airlines

Thu 10/910:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/14

$165

Fri 10/35:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Mon 10/610:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/15

$166

Wed 9/249:30 amBOS - IAD

Nonstop1h 43mUnited Airlines

Tue 9/308:50 amIAD - BOS

Nonstop1h 41mUnited Airlines

Deal found 9/15

$167

Tue 9/3010:34 amBOS - IAD

1 stop5h 31mUnited Airlines

Tue 9/305:10 pmIAD - BOS

1 stop5h 46mUnited Airlines

Deal found 9/15

$168

Fri 9/265:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Fri 10/310:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/12

$171

Wed 10/810:34 amBOS - IAD

1 stop5h 31mUnited Airlines

Wed 10/156:15 amIAD - BOS

1 stop4h 53mUnited Airlines

Deal found 9/15

$173

Best flights from New Hampshire to Dulles Intl
Discover carefully curated flight deals from New Hampshire to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Thu 9/259:30 amBOS - IAD

Nonstop1h 44mUnited Airlines

Sun 9/286:15 amIAD - BOS

1 stop4h 53mUnited Airlines

Deal found 9/13

$182

Sat 11/83:27 pmORH - IAD

2 stops17h 14mAmerican Airlines

Mon 11/102:16 pmIAD - ORH

2 stops24h 46mAmerican Airlines

Deal found 9/14

$187

Sun 12/144:53 pmPWM - IAD

1 stop6h 15mDelta

Sat 1/107:59 pmIAD - PWM

1 stop3h 50mDelta

Deal found 9/12

$200

Thu 9/259:30 amBOS - IAD

Nonstop1h 44mUnited Airlines

Thu 10/26:15 amIAD - BOS

1 stop4h 52mUnited Airlines

Deal found 9/14

$182

Tue 10/74:17 pmORH - IAD

2 stops26h 37mAmerican Airlines

Tue 10/142:18 pmIAD - ORH

2 stops25h 32mAmerican Airlines

Deal found 9/13

$187

Tue 9/309:30 amBOS - IAD

Nonstop1h 44mUnited Airlines

Wed 10/110:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/14

$187

Sun 9/284:23 pmORH - IAD

2 stops21h 28mAmerican Airlines

Thu 10/25:26 pmIAD - ORH

2 stops22h 25mAmerican Airlines

Deal found 9/13

$187

Fri 10/242:38 pmPWM - IAD

1 stop4h 40mDelta

Sun 10/267:59 pmIAD - PWM

1 stop4h 06mDelta

Deal found 9/15

$209

Wed 10/155:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Sat 10/1810:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/13

$187

Fri 10/34:23 pmORH - IAD

2 stops21h 26mAmerican Airlines

Mon 10/65:41 pmIAD - ORH

2 stops22h 09mAmerican Airlines

Deal found 9/13

$187

Tue 10/72:38 pmPWM - IAD

1 stop4h 40mDelta

Sat 10/117:59 pmIAD - PWM

1 stop4h 06mDelta

Deal found 9/14

$209

Wed 11/55:30 amBOS - IAD

Nonstop1h 43mUnited Airlines

Wed 11/55:33 pmIAD - BOS

1 stop5h 14mUnited Airlines

Deal found 9/15

$187

Last-minute flights from New Hampshire to Dulles Intl
Discover last-minute flight deals from New Hampshire to Dulles Intl. Data last updated September 15, 2025 and is based on user searches.

Fri 9/265:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Fri 10/310:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/14

$167

Sun 9/284:23 pmORH - IAD

2 stops21h 28mAmerican Airlines

Thu 10/25:26 pmIAD - ORH

2 stops22h 25mAmerican Airlines

Deal found 9/13

$187

Wed 10/16:00 amBOS - IAD

1 stop5h 31mUnited Airlines

Thu 10/26:15 amIAD - BOS

1 stop4h 52mUnited Airlines

Deal found 9/14

$157

Thu 10/25:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Mon 10/610:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/14

$161

Tue 10/710:34 amBOS - IAD

1 stop5h 31mUnited Airlines

Thu 10/910:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/14

$165

Wed 10/810:34 amBOS - IAD

1 stop5h 31mUnited Airlines

Wed 10/810:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/13

$175

Thu 10/95:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Tue 10/1410:19 pmIAD - BOS

Nonstop1h 40mUnited Airlines

Deal found 9/13

$162

Thu 10/165:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Sun 10/198:30 amIAD - BOS

1 stop4h 55mUnited Airlines

Deal found 9/14

$158

Fri 10/175:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Sun 10/198:30 amIAD - BOS

1 stop4h 55mUnited Airlines

Deal found 9/13

$163

Fri 10/249:18 amBOS - IAD

1 stop11h 55mFrontier

Sun 10/268:02 pmIAD - BOS

1 stop12h 31mFrontier

Deal found 9/14

$160

Fri 10/242:34 pmPWM - IAD

Nonstop1h 56mUnited Airlines

Sun 10/268:20 amIAD - PWM

Nonstop1h 44mUnited Airlines

Deal found 9/13

$189

Thu 10/305:30 amBOS - IAD

Nonstop1h 43mUnited Airlines

Sun 11/25:00 amIAD - BOS

1 stop4h 43mUnited Airlines

Deal found 9/14

$166

One-way flights from New Hampshire to Dulles Intl
Search for one-way flight options from New Hampshire to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Tue 10/214:23 pmBOS - IAD

1 stop4h 48mUnited Airlines

Deal found 9/12

$77

Wed 10/112:10 pmBOS - IAD

1 stop3h 55mUnited Airlines

Deal found 9/15

$79

Thu 9/2510:13 amBOS - IAD

1 stop9h 56mFrontier

Deal found 9/13

$80

Thu 10/210:13 amBOS - IAD

1 stop9h 56mFrontier

Deal found 9/13

$81

Tue 12/305:20 amBOS - IAD

Nonstop1h 46mUnited Airlines

Deal found 9/13

$83

Thu 2/1912:11 pmBOS - IAD

1 stop4h 01mUnited Airlines

Deal found 9/14

$84

Fri 10/245:30 amBOS - IAD

Nonstop1h 41mUnited Airlines

Deal found 9/14

$85

Mon 10/279:18 amBOS - IAD

1 stop12h 20mFrontier

Deal found 9/13

$86

Mon 11/39:23 amBOS - IAD

1 stop10h 28mFrontier

Deal found 9/14

$87

Mon 11/245:30 amBOS - IAD

Nonstop1h 43mUnited Airlines

Deal found 9/14

$88

Thu 11/205:30 amBOS - IAD

Nonstop1h 43mUnited Airlines

Deal found 9/15

$89

Sat 11/111:43 amBOS - IAD

1 stop12h 12mFrontier

Deal found 9/12

$90

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Thu 9/25

9:30 am-11:14 am

Nonstop1h 44m

Washington, D.C. Dulles Intl

Sun 9/28

6:15 am-11:08 am

1 stop4h 53m

$182

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Thu 9/25

9:30 am-11:14 am

Nonstop1h 44m

Washington, D.C. Dulles Intl

Thu 10/2

6:15 am-11:07 am

1 stop4h 52m

$182

WorcesterWashington, D.C.

ORH - IAD

ORHIAD

Worcester

Sat 11/8

3:27 pm-8:41 am

2 stops17h 14m

Washington, D.C. Dulles Intl

Mon 11/10

2:16 pm-3:02 pm

2 stops24h 46m

$187

WorcesterWashington, D.C.

ORH - IAD

ORHIAD

Worcester

Tue 10/7

4:17 pm-6:54 pm

2 stops26h 37m

Washington, D.C. Dulles Intl

Tue 10/14

2:18 pm-3:50 pm

2 stops25h 32m

$187

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Tue 9/30

9:30 am-11:14 am

Nonstop1h 44m

Washington, D.C. Dulles Intl

Wed 10/1

10:19 pm-11:59 pm

Nonstop1h 40m

$187

WorcesterWashington, D.C.

ORH - IAD

ORHIAD

Worcester

Sun 9/28

4:23 pm-1:51 pm

2 stops21h 28m

Washington, D.C. Dulles Intl

Thu 10/2

5:26 pm-3:51 pm

2 stops22h 25m

$187

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Wed 10/15

5:30 am-7:11 am

Nonstop1h 41m

Washington, D.C. Dulles Intl

Sat 10/18

10:19 pm-11:59 pm

Nonstop1h 40m

$187

WorcesterWashington, D.C.

ORH - IAD

ORHIAD

Worcester

Fri 10/3

4:23 pm-1:49 pm

2 stops21h 26m

Washington, D.C. Dulles Intl

Mon 10/6

5:41 pm-3:50 pm

2 stops22h 09m

$187

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Wed 11/5

5:30 am-7:13 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Wed 11/5

5:33 pm-10:47 pm

1 stop5h 14m

$187

WorcesterWashington, D.C.

ORH - IAD

ORHIAD

Worcester

Mon 10/6

4:17 pm-9:55 am

2 stops17h 38m

Washington, D.C. Dulles Intl

Tue 10/7

2:18 pm-3:50 pm

2 stops25h 32m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results

...

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, August is the cheapest month in which you can book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport (average of $292). Flying from New Hampshire to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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?

When flying from New Hampshire to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How long is the flight from New Hampshire to Washington, D.C. Dulles Intl Airport?
United Airlines, American Airlines, and Delta can get you from New Hampshire to Washington, D.C. Dulles Intl Airport in just under 1h 44m. Your travel time can differ by up to 15h 30m. 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 cheapest airlines to fly from New Hampshire to Washington, D.C. Dulles Intl Airport one-way?
One-way options have recently been found by users for as low as $77 on United Airlines. Other airlines that offer cheap prices include American Airlines from $99 and Delta from $151 one-way.
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 $343 for a flight from New Hampshire to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $106 while the most popular route, (Boston Logan Intl - Washington, D.C. Dulles Intl) is currently priced at $122.
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, August is the cheapest month in which you can book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport (average of $292). Flying from New Hampshire to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

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Oxon Hill

Laurel

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National Harbor

Dundalk

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Top 2 airlines flying from New Hampshire to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$189	Average$282	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$197	Average$448	FlexibilityNo cancel fee	On-time71%

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$77+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from New Hampshire to Dulles Intl with Cheapflights

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3. Compare prices and book

Cheap 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 September 15, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from New Hampshire to Dulles Intl

Cheapest flights from New Hampshire to Dulles IntlExplore 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 September 15, 2025.

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 September 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from New Hampshire to Washington, D.C. Dulles Intl Airport that are best for you.

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.

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?

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 September 15, 2025.

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

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?

What are the cheapest airlines to fly from New Hampshire to Washington, D.C. Dulles Intl Airport one-way?

What are the most popular routes 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?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for New Hampshire to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from New Hampshire to Dulles Intl

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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 September 15, 2025.