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 Manchester - Washington, D.C. Dulles Intl or Portland - 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 $350 for a flight from New Hampshire to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $134 while the most popular route, (Boston Logan Intl - Washington, D.C. Dulles Intl) is currently priced at $117.

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.

$64+ Cheap Flights from New Hampshire to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from New Hampshire to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from New Hampshire to Dulles Intl

Cheapest

Best

Last-minute

One-way

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 August 26, 2026.

Mon 9/215:45 am -

Nonstop1h 35m

Wed 9/2310:15 pm -

Nonstop1h 44m

Deal found 8/21

$127

Tue 9/225:45 am -

Nonstop1h 35m

Sat 9/2610:15 pm -

Nonstop1h 44m

Deal found 8/25

$128

Sat 10/245:45 am -

Nonstop1h 35m

Mon 10/2610:19 pm -

Nonstop1h 40m

Deal found 8/23

$129

Tue 9/1512:52 pm -

1 stop11h 18m

Wed 9/1611:12 am -

1 stop23h 10m

Deal found 8/24

$130

Fri 9/185:45 am -

Nonstop1h 35m

Mon 9/2110:15 pm -

Nonstop1h 44m

Deal found 8/21

$131

Thu 10/111:17 am -

1 stop23h 00m

Sat 10/39:33 am -

1 stop25h 25m

Deal found 8/24

$132

Fri 9/185:45 am -

Nonstop1h 35m

Sat 9/1910:15 pm -

Nonstop1h 44m

Deal found 8/24

$133

Thu 10/225:45 am -

Nonstop1h 35m

Mon 10/2610:19 pm -

Nonstop1h 40m

Deal found 8/25

$134

Sat 9/1212:54 pm -

1 stop11h 16m

Wed 9/1611:12 am -

1 stop23h 10m

Deal found 8/21

$136

Sat 9/197:23 pm -

Nonstop1h 45m

Sun 9/2010:15 pm -

Nonstop1h 44m

Deal found 8/21

$142

Fri 11/135:30 am -

Nonstop1h 40m

Sun 11/2210:19 pm -

Nonstop1h 40m

Deal found 8/22

$143

Fri 10/25:16 pm -

2 stops16h 39m

Sun 10/46:32 am -

2 stops10h 17m

Deal found 8/25

$169

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 August 26, 2026.

Sat 11/76:00 am -

1 stop5h 34m

Mon 11/98:40 am -

Nonstop1h 39m

Deal found 8/22

$144

Fri 10/25:16 pm -

2 stops16h 39m

Sun 10/46:32 am -

2 stops10h 17m

Deal found 8/25

$169

Thu 9/176:02 am -

1 stop5h 43m

Mon 9/216:26 pm -

1 stop5h 30m

Deal found 8/25

$277

Mon 10/265:30 am -

Nonstop1h 40m

Mon 10/2610:19 pm -

Nonstop1h 40m

Deal found 8/21

$170

Sat 10/245:45 am -

Nonstop1h 35m

Tue 10/278:40 am -

Nonstop1h 39m

Deal found 8/22

$187

Wed 11/45:30 am -

Nonstop1h 40m

Sun 11/86:10 am -

1 stop4h 57m

Deal found 8/25

$192

Fri 9/186:02 am -

1 stop5h 43m

Mon 9/216:26 pm -

1 stop5h 30m

Deal found 8/22

$278

Thu 9/175:45 am -

Nonstop1h 35m

Tue 9/228:35 am -

1 stop5h 47m

Deal found 8/23

$214

Sat 10/175:16 pm -

2 stops15h 28m

Sat 12/127:00 am -

2 stops10h 07m

Deal found 8/22

$290

Wed 11/186:27 am -

2 stops9h 59m

Wed 12/26:20 pm -

1 stop6h 01m

Deal found 8/22

$282

Sat 9/265:45 am -

Nonstop1h 35m

Tue 9/296:45 am -

1 stop5h 58m

Deal found 8/22

$214

Sat 9/126:02 am -

1 stop5h 43m

Sun 9/136:26 pm -

1 stop5h 30m

Deal found 8/24

$294

Sun 9/65:23 pm -

2 stops16h 34m

Thu 9/107:57 am -

2 stops8h 52m

Deal found 8/21

$327

Thu 10/229:25 am -

Nonstop1h 48m

Sat 10/245:18 pm -

Nonstop1h 43m

Deal found 8/25

$227

Sat 9/194:45 pm -

1 stop6h 29m

Mon 9/216:26 pm -

1 stop5h 30m

Deal found 8/25

$295

Fri 10/165:45 am -

Nonstop1h 35m

Mon 10/266:10 am -

1 stop4h 41m

Deal found 8/21

$232

Wed 9/95:16 pm -

2 stops16h 39m

Sun 9/136:32 am -

2 stops10h 17m

Deal found 8/25

$347

Thu 10/226:04 am -

1 stop5h 46m

Sat 10/246:05 am -

2 stops9h 50m

Deal found 8/22

$298

Tue 9/222:28 pm -

Nonstop1h 41m

Fri 10/910:15 pm -

Nonstop1h 44m

Deal found 8/24

$234

Thu 9/105:16 pm -

2 stops25h 43m

Sun 9/136:32 am -

2 stops10h 17m

Deal found 8/25

$347

Tue 10/271:52 pm -

2 stops9h 24m

Fri 10/306:05 am -

1 stop5h 52m

Deal found 8/23

$300

Wed 10/219:25 am -

Nonstop1h 48m

Sat 10/245:18 pm -

Nonstop1h 43m

Deal found 8/23

$237

Tue 9/152:46 pm -

Nonstop1h 49m

Thu 9/1710:17 pm -

Nonstop1h 42m

Deal found 8/22

$240

Tue 9/85:23 pm -

2 stops16h 32m

Thu 9/106:14 am -

2 stops10h 35m

Deal found 8/23

$397

Thu 9/247:38 am -

1 stop3h 47m

Mon 9/2812:38 pm -

1 stop6h 47m

Deal found 8/25

$241

Fri 11/136:05 pm -

1 stop4h 20m

Sun 11/158:37 am -

1 stop3h 49m

Deal found 8/24

$243

Sat 10/105:16 pm -

2 stops6h 42m

Sun 10/116:15 am -

2 stops10h 34m

Deal found 8/21

$444

Sun 9/202:49 pm -

2 stops14h 51m

Sun 9/275:57 pm -

2 stops16h 05m

Deal found 8/23

$1,510

Thu 9/245:45 am -

Nonstop1h 35m

Fri 9/2510:15 pm -

Nonstop1h 44m

Deal found 8/23

$246

Thu 10/85:16 pm -

3 stops15h 28m

Sat 10/106:15 am -

2 stops10h 34m

Deal found 8/24

$476

Last-minute flights from New Hampshire to Dulles Intl
Discover last-minute flight deals from New Hampshire to Dulles Intl. Data last updated August 26, 2026 and is based on user searches.

Sat 9/1212:54 pm -

1 stop11h 16m

Wed 9/1611:12 am -

1 stop23h 10m

Deal found 8/21

$136

Sun 9/135:45 am -

Nonstop1h 35m

Wed 9/1610:15 pm -

Nonstop1h 44m

Deal found 8/22

$134

Tue 9/1512:52 pm -

1 stop11h 18m

Wed 9/1611:12 am -

1 stop23h 10m

Deal found 8/24

$130

Tue 9/155:45 am -

Nonstop1h 35m

Sat 9/198:35 am -

1 stop5h 47m

Deal found 8/25

$144

Fri 9/185:45 am -

Nonstop1h 35m

Mon 9/2110:15 pm -

Nonstop1h 44m

Deal found 8/21

$131

Fri 9/185:45 am -

Nonstop1h 35m

Sat 9/1910:15 pm -

Nonstop1h 44m

Deal found 8/24

$133

Sat 9/197:23 pm -

Nonstop1h 45m

Sun 9/2010:15 pm -

Nonstop1h 44m

Deal found 8/21

$142

Mon 9/215:45 am -

Nonstop1h 35m

Wed 9/2310:15 pm -

Nonstop1h 44m

Deal found 8/21

$127

Tue 9/225:45 am -

Nonstop1h 35m

Sat 9/2610:15 pm -

Nonstop1h 44m

Deal found 8/25

$128

Tue 9/2212:52 pm -

1 stop11h 18m

Sat 10/1011:12 am -

1 stop23h 50m

Deal found 8/24

$147

Fri 9/255:45 am -

Nonstop1h 35m

Mon 9/2810:25 pm -

Nonstop1h 44m

Deal found 8/25

$150

Fri 9/255:45 am -

Nonstop1h 35m

Tue 9/293:09 pm -

Nonstop1h 50m

Deal found 8/21

$153

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 August 26, 2026.

Tue 9/1512:52 pm -

1 stop11h 18m

Deal found 8/25

$64

Tue 9/2212:52 pm -

1 stop11h 18m

Deal found 8/24

$65

Sat 9/1912:54 pm -

1 stop11h 16m

Deal found 8/25

$66

Tue 11/1012:15 pm -

1 stop11h 28m

Deal found 8/21

$68

Mon 9/215:45 am -

Nonstop1h 35m

Deal found 8/22

$69

Tue 11/107:41 pm -

Nonstop1h 47m

Deal found 8/24

$70

Fri 9/185:45 am -

Nonstop1h 35m

Deal found 8/21

$73

Sat 9/1212:54 pm -

1 stop11h 16m

Deal found 8/23

$74

Fri 10/165:45 am -

Nonstop1h 35m

Deal found 8/24

$76

Fri 10/212:54 pm -

1 stop11h 16m

Deal found 8/21

$82

Sat 10/2411:42 am -

1 stop12h 39m

Deal found 8/23

$83

Thu 10/156:00 am -

1 stop5h 25m

Deal found 8/24

$86

Find flight deals from New Hampshire to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$127 (United Airlines)
One-way from	$64 (Super.com)
Popular in	June
Cheapest in	December
Average price	$266
Good round-trip deal	$327 or less
Good one-way deal	$214 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 ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

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.

Search Deals

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

Cheapest round-trip

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Sat 11/7

6:00 am-11:34 am

1 stop5h 34m

Washington, D.C. Dulles Intl

Mon 11/9

8:40 am-10:19 am

Nonstop1h 39m

$144

WorcesterWashington, D.C.

ORH Worcester - IAD Washington, D.C. Dulles Intl

ORHIAD

Worcester

Fri 10/2

5:16 pm-9:55 am

2 stops16h 39m

Washington, D.C. Dulles Intl

Sun 10/4

6:32 am-4:49 pm

2 stops10h 17m

$169

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Mon 10/26

5:30 am-7:10 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Mon 10/26

10:19 pm-11:59 pm

Nonstop1h 40m

$170

Quickest round-trip

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Sat 10/24

5:45 am-7:20 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Tue 10/27

8:40 am-10:19 am

Nonstop1h 39m

$187

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Wed 11/4

5:30 am-7:10 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Sun 11/8

6:10 am-11:07 am

1 stop4h 57m

$192

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Thu 9/17

5:45 am-7:20 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Tue 9/22

8:35 am-2:22 pm

1 stop5h 47m

$214

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Sat 9/26

5:45 am-7:20 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Tue 9/29

6:45 am-12:43 pm

1 stop5h 58m

$214

ManchesterWashington, D.C.

MHT Manchester - IAD Washington, D.C. Dulles Intl

MHTIAD

Manchester

Thu 10/22

9:25 am-11:13 am

Nonstop1h 48m

Washington, D.C. Dulles Intl

Sat 10/24

5:18 pm-7:01 pm

Nonstop1h 43m

$227

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Fri 10/16

5:45 am-7:20 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Mon 10/26

6:10 am-10:51 am

1 stop4h 41m

$232

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Tue 9/22

2:28 pm-4:09 pm

Nonstop1h 41m

Washington, D.C. Dulles Intl

Fri 10/9

10:15 pm-11:59 pm

Nonstop1h 44m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/22

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

BOS-IAD

ORH-IAD

PWM-IAD

MHT-IAD

LEB-IAD

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

USNH-IAD

BOS-IAD

ORH-IAD

PWM-IAD

MHT-IAD

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

Currently, January is the cheapest month in which you can book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport (average of $249). Flying from New Hampshire to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $339). 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?

It’s optimal to fly from New Hampshire to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the afternoon.

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 (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from New Hampshire to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

New Hampshire to Washington, D.C. Dulles Intl Airport flights typically cost between $269 and $375 in October.
The cheapest round-trip price found within the last 5 days was $227 on United Airlines (Oct 22-Oct 24).

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

Booking 37 days in advance of your planned departure date is, on average, the best time to get cheap flights from New Hampshire to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

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

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 5h 34m. Your travel time can differ by up to 11h 05m. 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 Manchester - Washington, D.C. Dulles Intl or Portland - 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 $350 for a flight from New Hampshire to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $134 while the most popular route, (Boston Logan Intl - Washington, D.C. Dulles Intl) is currently priced at $117.
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, January is the cheapest month in which you can book a flight from New Hampshire to Washington, D.C. Dulles Intl Airport (average of $249). Flying from New Hampshire to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $339). 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

Alexandria

Owings Mills

Arlington

Tysons

Lanham

Reston

Herndon

Rockville

Chantilly

Hyattsville

Fredericksburg

Woodbridge

Falls Church

Sterling

Hanover

Laurel

Springfield

Oxon Hill

Clinton

Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Dulles Intl flight routes

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for New Hampshire to Dulles Intl

Dallas/Fort Worth to Baltimore flights

Dallas/Fort Worth to Dulles Intl flights

Los Angeles to Reagan-National flights

Boston to Baltimore flights

Los Angeles to Baltimore flights

Seattle to Dulles Intl flights

Dallas/Fort Worth to Reagan-National flights

Atlanta to Reagan-National flights

O'Hare Intl to Baltimore flights

Atlanta to Dulles Intl flights

San Francisco to Dulles Intl flights

Seattle to Reagan-National flights

Boston to Reagan-National flights

Boston to Dulles Intl flights

Hobby to Baltimore flights

Los Angeles to Dulles Intl flights

O'Hare Intl to Dulles Intl flights

O'Hare Intl to Reagan-National flights

Orlando to Dulles Intl flights

San Francisco to Reagan-National flights

Atlanta to Baltimore flights

Denver to Dulles Intl flights

Minneapolis to Dulles Intl flights

San Francisco to Baltimore flights

Orlando to Baltimore flights

Tampa to Dulles Intl flights

Fort Lauderdale to Baltimore flights

Minneapolis to Reagan-National flights

Hobby to Reagan-National flights

Minneapolis to Baltimore flights

Orlando to Reagan-National flights

George Bush Intcntl to Baltimore flights

San Diego to Dulles Intl flights

Miami to Reagan-National flights

Denver to Baltimore flights

Seattle to Baltimore flights

Fort Lauderdale to Dulles Intl flights

Austin to Dulles Intl flights

Ontario to Dulles Intl flights

Hobby to Dulles Intl flights

Midway to Dulles Intl flights

Tampa to Baltimore flights

Tampa to Reagan-National flights

George Bush Intcntl to Reagan-National flights

Detroit to Baltimore flights

Sky Harbor Intl to Dulles Intl flights

Salt Lake City to Dulles Intl flights

George Bush Intcntl to Dulles Intl flights

Charlotte to Dulles Intl flights

Denver to Reagan-National flights

Top airline flying from New Hampshire to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$189	Average$310	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$64+ 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 9/15. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap 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 August 26, 2026.

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 August 26, 2026.

Best flights from New Hampshire to Dulles IntlDiscover 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 August 26, 2026.

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 August 26, 2026.

Last-minute flights from New Hampshire to Dulles IntlDiscover last-minute flight deals from New Hampshire to Dulles Intl. Data last updated August 26, 2026 and is based on user searches.

Discover last-minute flight deals from New Hampshire to Dulles Intl. Data last updated August 26, 2026 and is based on user searches.

One-way flights from New Hampshire to Dulles IntlSearch for one-way flight options from New Hampshire to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.

Search for one-way flight options from New Hampshire to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.

Find flight deals from New Hampshire to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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

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 August 26, 2026.

It’s optimal to fly from New Hampshire to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the afternoon.

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 (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from New Hampshire to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

New Hampshire to Washington, D.C. Dulles Intl Airport flights typically cost between $269 and $375 in October.The cheapest round-trip price found within the last 5 days was $227 on United Airlines (Oct 22-Oct 24).

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

Booking 37 days in advance of your planned departure date is, on average, the best time to get cheap flights from New Hampshire to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 August 22, 2026.

Related info for your journey

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

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.

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.

Search flights from New Hampshire to Dulles Intl by cabin class

Find flights from New Hampshire to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

New Hampshire and Dulles Intl flights

Browse other New Hampshire and Dulles Intl flight options. Last updated on August 26, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

New Hampshire to Dulles Intl flights

Consider these flights traveling from New Hampshire to Dulles Intl.

Top airline flying from New Hampshire to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

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 August 26, 2026.

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 August 26, 2026.

Last-minute flights from New Hampshire to Dulles Intl
Discover last-minute flight deals from New Hampshire to Dulles Intl. Data last updated August 26, 2026 and is based on user searches.

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 August 26, 2026.

New Hampshire to Washington, D.C. Dulles Intl Airport flights typically cost between $269 and $375 in October.
The cheapest round-trip price found within the last 5 days was $227 on United Airlines (Oct 22-Oct 24).