$90 Find Cheap Flights from Washington Dulles Airport to New Hampshire - Compare and Save

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 9/5. 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

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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
Boston1 stop$157
Lebanon
Lebanon1 stop$398
Portland
Portland2 stops$268
Boston
Boston1 stop$157
Lebanon
Lebanon1 stop$398
Portland
Portland2 stops$268

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, Sep 2 - Sat, Sep 5
United Airlines Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
United Airlines Logo
6:54 pm - 10:59 pm
BOS
-
IAD
4h 05m
1 stop
$156United Airlines
Thu, Aug 27 - Tue, Sep 1
United Airlines Logo
8:35 am - 12:47 pm
IAD
-
BOS
4h 12m
1 stop
United Airlines Logo
5:45 am - 7:20 am
BOS
-
IAD
1h 35mnonstop
$157United Airlines
Wed, Sep 23 - Sat, Sep 26
United Airlines Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
United Airlines Logo
12:36 pm - 4:33 pm
BOS
-
IAD
3h 57m
1 stop
$157United Airlines
Sat, Oct 10 - Wed, Oct 14
United Airlines Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
United Airlines Logo
12:36 pm - 4:23 pm
BOS
-
IAD
3h 47m
1 stop
$157United Airlines
Thu, Aug 20 - Mon, Aug 24
Frontier Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
Frontier Logo
9:36 am - 5:14 pm
BOS
-
IAD
7h 38m
1 stop
$186Frontier
Mon, Aug 17 - Fri, Aug 21
Frontier Logo
10:15 pm - 11:59 pm
IAD
-
BOS
1h 44mnonstop
Frontier Logo
9:36 am - 5:14 pm
BOS
-
IAD
7h 38m
1 stop
$190Frontier
Sat, Sep 5 - Tue, Sep 8
Frontier Logo
8:39 pm - 8:41 am
IAD
-
BOS
12h 02m
1 stop
Frontier Logo
12:45 pm - 10:52 pm
BOS
-
IAD
10h 07m
1 stop
$200Frontier
Sat, Aug 15 - Tue, Aug 18
Delta Logo
12:29 pm - 7:16 pm
IAD
-
BOS
6h 47m
1 stop
Delta Logo
5:30 am - 10:23 am
BOS
-
IAD
4h 53m
1 stop
$243Delta
Fri, Dec 4 - Mon, Dec 7
Delta Logo
7:00 am - 11:19 am
IAD
-
BOS
4h 19m
1 stop
Delta Logo
4:40 pm - 11:02 pm
BOS
-
IAD
6h 22m
1 stop
$245Delta
Fri, Nov 13 - Sun, Nov 15
Delta Logo
6:20 pm - 10:55 pm
IAD
-
BOS
4h 35m
1 stop
Delta Logo
6:00 am - 11:52 am
BOS
-
IAD
5h 52m
1 stop
$247Delta
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.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to New Hampshire departing in August.

Flight prices are below average for this route right now.

Flights to New Hampshire from Washington, D.C. Dulles Intl Airport usually cost between $413 and $473 in August.
The lowest price found in the past 5 days was $241 on United Airlines (Aug 15-Aug 20).

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 5 days was to Manchester, at $217 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 5 days was $217.

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

The average price for all round-trip flights from Washington, D.C. Dulles Intl Airport to New Hampshire depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to New Hampshire is generally at night, when round-trip flights cost $258 on average. Morning departures are around 9% 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 $356.

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 December, when tickets cost $254 (return) on average. On the other hand, the most expensive months are October and August, when the average cost of round-trip tickets is $487 and $447 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 Saturday 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 Sundays.

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 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low season

February

Cheapest flight

$90
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Washington, D.C. to Worcester

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.

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 10046 reviews
7.7Boarding
6.6Food
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

My flight was delayed so bad i missed u it so i just said never mind

2.0 MediocreDanika, Jul 2026
IAD - EWR
Read more United Airlines reviews

My flight was delayed so bad i missed u it so i just said never mind

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

Onboard staff was courteous, helpful, responsive and friendly. The boarding process was disorganized, poorly communicated, and disheveled. Gate agents were yelling instead of using the PA system, didn’t communicate the timing delay of our flight, and created an atmosphere of chaos rather than order and communication. As far as I know, there was no reason for their. I would hate to see how it operated under extreme conditions. I’ve never seen United Airlines operations in such a state.

The flight did not have its customary snacks during the flight. Apparently they were never loaded on the plane.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

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

Information on your arrival and departure airports