$112 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 5/17. 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
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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$187
Lebanon
Lebanon1 stop$446
Portland
Portland1 stop$249
Boston
Boston1 stop$187
Lebanon
Lebanon1 stop$446
Portland
Portland1 stop$249

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

Wed, Apr 15 - Mon, May 11
Frontier Logo
11:40 am - 11:33 am
DEN
-
BOS
21h 53m
1 stop
Frontier Logo
8:44 am - 10:24 pm
BOS
-
DEN
39h 40m
2 stops
$187Frontier
Mon, May 4 - Wed, May 13
Frontier Logo
11:59 pm - 12:05 pm
DEN
-
BOS
10h 06m
1 stop
Frontier Logo
12:55 pm - 11:03 pm
BOS
-
DEN
12h 08m
1 stop
$189Frontier
Fri, Jun 5 - Sat, Jun 13
JetBlue Logo
10:34 pm - 4:27 am
DEN
-
BOS
3h 53mnonstop
JetBlue Logo
7:00 am - 9:34 am
BOS
-
DEN
4h 34mnonstop
$195JetBlue
Mon, Mar 30 - Tue, Apr 7
JetBlue Logo
11:09 pm - 4:57 am
DEN
-
BOS
3h 48mnonstop
JetBlue Logo
7:50 pm - 10:36 pm
BOS
-
DEN
4h 46mnonstop
$198JetBlue
Tue, May 5 - Tue, May 19
Multiple Airlines Logo
11:08 pm - 5:01 am
DEN
-
BOS
3h 53mnonstop
Multiple Airlines Logo
6:00 am - 12:09 pm
BOS
-
DEN
8h 09m
1 stop
$204Multiple Airlines
Fri, Apr 10 - Sat, Apr 11
Southwest Logo
5:45 am - 2:10 pm
DEN
-
PWM
6h 25m
1 stop
Southwest Logo
4:35 pm - 9:35 pm
PWM
-
DEN
7h 00m
1 stop
$249Southwest
Thu, Apr 2 - Sun, Apr 5
Southwest Logo
5:25 am - 4:45 pm
DEN
-
PWM
9h 20m
1 stop
Southwest Logo
5:30 pm - 10:40 pm
PWM
-
DEN
7h 10m
1 stop
$254Southwest
Sat, Apr 4 - Wed, Apr 8
American Airlines Logo
10:25 am - 10:50 pm
DEN
-
PWM
10h 25m
2 stops
American Airlines Logo
3:39 pm - 11:45 pm
PWM
-
DEN
10h 06m
2 stops
$259American Airlines
Tue, Jul 28 - Tue, Aug 11
American Airlines Logo
1:57 pm - 10:36 pm
DEN
-
PWM
6h 39m
1 stop
American Airlines Logo
8:01 am - 3:09 pm
PWM
-
DEN
9h 08m
1 stop
$264American Airlines
Wed, May 6 - Sat, May 9
Multiple Airlines Logo
6:03 am - 11:45 am
DEN
-
MHT
27h 42m
1 stop
Multiple Airlines Logo
12:29 pm - 11:11 pm
MHT
-
DEN
12h 42m
2 stops
$315Multiple Airlines
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.

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

The average price for all round-trip flights from Denver 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 $275 on average. Morning departures are around 11% 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 $358.

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 $277 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is $337 and $334 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 4 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$112
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 12% 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.

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 $190 one-way - $256 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.
8.0
SouthwestOverall score based on 4317 reviews
7.0Food
8.1Boarding
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

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.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

Where do I start!! I was delayed with my flight from Dallas to Tampa. On the way back from Tampa to Dallas the flight was delayed over 4 hours+. I was put on another flight that was also delayed but not as long. Traveling on American Airlines is becoming exhausing.

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

Information on your arrival and departure airports