$94 Find Cheap Flights from Denver 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 Denver to New Hampshire departing on 1/28. 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 Denver 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 Denver to New Hampshire, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop$169
Lebanon
Lebanon1 stop$394
Portland
Portland1 stop$251
Boston
Boston1 stop$169
Lebanon
Lebanon1 stop$394
Portland
Portland1 stop$251

Book Cheap Denver 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 Denver 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 Denver to New Hampshire

Thu, Jan 15 - Tue, Jan 20
Multiple Airlines Logo
6:00 am - 7:52 am
DEN
-
BOS
23h 52m1 stop
Multiple Airlines Logo
6:00 am - 5:53 pm
BOS
-
DEN
37h 53m2 stops
$169Multiple Airlines
Tue, Jan 13 - Sat, Jan 17
Multiple Airlines Logo
11:59 pm - 4:19 pm
DEN
-
BOS
14h 20m1 stop
Multiple Airlines Logo
12:10 pm - 8:20 am
BOS
-
DEN
22h 10m1 stop
$170Multiple Airlines
Mon, Jan 12 - Tue, Jan 13
Frontier Logo
6:00 am - 1:19 am
DEN
-
BOS
17h 19m1 stop
Frontier Logo
6:00 am - 12:21 pm
BOS
-
DEN
8h 21m1 stop
$173Frontier
Wed, Jan 7 - Tue, Jan 13
Frontier Logo
6:00 am - 1:19 am
DEN
-
BOS
17h 19m1 stop
Frontier Logo
6:00 am - 7:13 am
BOS
-
DEN
27h 13m2 stops
$175Frontier
Thu, Jan 15 - Tue, Jan 20
United Airlines Logo
5:45 pm - 11:46 pm
DEN
-
BOS
4h 01mnonstop
United Airlines Logo
11:17 am - 2:12 pm
BOS
-
DEN
4h 55mnonstop
$177United Airlines
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
6:00 am - 3:31 pm
DEN
-
PWM
7h 31m1 stop
American Airlines Logo
12:40 pm - 9:11 pm
PWM
-
DEN
10h 31m1 stop
$251American Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
2:30 pm - 1:15 pm
DEN
-
ORH
20h 45m1 stop
American Airlines Logo
1:40 pm - 10:22 pm
ORH
-
DEN
10h 42m1 stop
$252American Airlines
Wed, Jan 7 - Sat, Jan 10
Southwest Logo
6:20 am - 2:55 pm
DEN
-
PWM
6h 35m1 stop
Southwest Logo
3:30 pm - 8:10 pm
PWM
-
DEN
6h 40m1 stop
$270Southwest
Fri, May 1 - Sat, May 16
United Airlines Logo
11:40 pm - 8:44 am
DEN
-
PWM
7h 04m1 stop
United Airlines Logo
3:30 pm - 6:08 pm
PWM
-
DEN
4h 38mnonstop
$279United Airlines
Wed, Jan 14 - Tue, Jan 20
Southwest Logo
2:25 pm - 10:05 pm
DEN
-
MHT
5h 40m1 stop
Southwest Logo
5:00 am - 10:00 am
MHT
-
DEN
7h 00m1 stop
$334Southwest
Booking Insights

KAYAK's insights & trends for Denver to New Hampshire flights

Get data-powered insights and trends into flights from Denver 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 Denver 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 Denver to New Hampshire departing in February.

What is the cheapest month to fly from Denver to New Hampshire?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver 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 Denver to New Hampshire is January, when tickets cost $217 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $336 and $333 respectively.

What’s the cheapest day of the week to fly from Denver to New Hampshire?

The average price of all round-trip flights from Denver to New Hampshire clicked on KAYAK for each day over the last 12 months.

For Denver to New Hampshire, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from New Hampshire back to Denver, the best deals are generally found on Tuesday, with Sunday being the most expensive.

How far in advance should I book a flight from Denver 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 Denver 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 Denver to New Hampshire, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$95
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 13% increase in price.
Flight from Denver to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from Denver 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 Denver to New Hampshire.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Denver 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 Denver 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 Denver 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 Denver 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 Denver 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 at night, when round-trip flights cost $276 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to New Hampshire is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $379.

Top tips for finding cheap flights to New Hampshire

  • Looking for a cheap flight? 25% of our users found tickets from Denver to the following destinations at these prices or less: Boston $142 one-way - $228 round-trip

Reviews of the top 3 airlines serving from Denver to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from Denver 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 Denver 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.
7.9
SouthwestOverall score based on 4250 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.6Crew
8.0Comfort
Airline reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

2.0 MediocreRobert, Dec 2025
LAS - TPA
Read more Southwest reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Everything you need to know for your flight from Denver to New Hampshire

Information on your arrival and departure airports