$78 Find Cheap Flights from Washington Dulles Airport to New Hampshire

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to New Hampshire departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to New Hampshire

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to New Hampshire, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to New Hampshire, as well as popular online travel agencies
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Cheap Flights from Dulles Intl to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Bostonnonstop$147
Portland
Portlandnonstop$249
Boston
Bostonnonstop$147
Portland
Portlandnonstop$249

Book Cheap Dulles Intl to New Hampshire Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to New Hampshire that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to New Hampshire

Wed, Jan 14 - Sat, Jan 17
United Airlines Logo
10:12 pm - 11:49 pm
IAD
-
BOS
1h 37mnonstop
United Airlines Logo
2:27 pm - 4:13 pm
BOS
-
IAD
1h 46mnonstop
$147United Airlines
Tue, Jan 6 - Tue, Jan 13
Multiple Airlines Logo
6:00 am - 1:19 am
IAD
-
BOS
19h 19m1 stop
Multiple Airlines Logo
5:23 pm - 11:43 am
BOS
-
IAD
18h 20m2 stops
$149Multiple Airlines
Tue, Jan 13 - Fri, Jan 16
Multiple Airlines Logo
6:00 am - 4:19 pm
IAD
-
BOS
10h 19m2 stops
Multiple Airlines Logo
6:00 am - 9:13 pm
BOS
-
IAD
15h 13m1 stop
$152Multiple Airlines
Tue, Jan 20 - Sun, Jan 25
Multiple Airlines Logo
11:00 am - 1:03 am
IAD
-
BOS
14h 03m1 stop
Multiple Airlines Logo
3:43 pm - 12:36 pm
BOS
-
IAD
20h 53m1 stop
$154Multiple Airlines
Tue, Jan 6 - Thu, Jan 8
Multiple Airlines Logo
6:00 am - 1:19 am
IAD
-
BOS
19h 19m1 stop
Multiple Airlines Logo
11:06 am - 2:18 pm
BOS
-
IAD
27h 12m2 stops
$155Multiple Airlines
Wed, Dec 31 - Wed, Jan 7
Frontier Logo
7:01 pm - 1:14 am
IAD
-
BOS
6h 13m1 stop
Frontier Logo
6:00 am - 4:50 pm
BOS
-
IAD
10h 50m1 stop
$163Frontier
Tue, Jan 6 - Fri, Jan 9
American Airlines Logo
11:34 am - 1:53 pm
IAD
-
ORH
26h 19m2 stops
American Airlines Logo
2:18 pm - 10:58 am
ORH
-
IAD
20h 40m2 stops
$197American Airlines
Fri, Feb 6 - Sun, Feb 8
Delta Logo
7:49 pm - 12:20 am
IAD
-
PWM
4h 31m1 stop
Delta Logo
6:00 am - 11:43 am
PWM
-
IAD
5h 43m1 stop
$254Delta
Thu, Feb 19 - Sun, Feb 22
Delta Logo
7:51 pm - 12:18 am
IAD
-
PWM
4h 27m1 stop
Delta Logo
6:30 am - 11:41 am
PWM
-
IAD
5h 11m1 stop
$269Delta
Tue, Dec 30 - Sat, Jan 3
American Airlines Logo
1:57 pm - 11:54 am
IAD
-
ORH
21h 57m2 stops
American Airlines Logo
1:45 pm - 8:42 am
ORH
-
IAD
18h 57m2 stops
$274American Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to New Hampshire flights

Get data-powered insights and trends into flights from Dulles Intl to New Hampshire to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. Dulles Intl Airport to New Hampshire flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to New Hampshire from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Manchester, at $189 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Manchester (MHT), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $189.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to New Hampshire, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to New Hampshire is January, when tickets cost $207 (return) on average. On the other hand, the most expensive months are May and August, when the average cost of round-trip tickets is $321 and $320 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to New Hampshire?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to New Hampshire clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to New Hampshire, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Fridays and the most expensive ones on Tuesdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to New Hampshire, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to New Hampshire, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$78
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Washington Dulles Airport to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to New Hampshire?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to New Hampshire.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to New Hampshire?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to New Hampshire is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to New Hampshire?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to New Hampshire with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to New Hampshire?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to New Hampshire up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to New Hampshire?

    The cheapest time of day to fly to New Hampshire is generally in the afternoon, when round-trip flights cost $228 on average. Morning departures are around 14% cheaper than evening flights, on average. The most expensive time of day to fly to New Hampshire is generally in the evening, which is peak travel time and where the average cost of a ticket is $340.

Reviews of the top airline flying from Dulles Intl to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to New Hampshire. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to New Hampshire? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9095 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

4.0 OkayAnonymous, Dec 2025
IAD - GRU
Read more United Airlines reviews

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Everything you need to know for your flight from Dulles Intl to New Hampshire

Information on your arrival and departure airports