$108 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 2/27. 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
Bostonnonstop$177
Lebanon
Lebanon1 stop$458
Portland
Portland1 stop$251
Boston
Bostonnonstop$177
Lebanon
Lebanon1 stop$458
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

Wed, Feb 18 - Sun, Feb 22
JetBlue Logo
11:13 pm - 5:00 am
DEN
-
BOS
3h 47mnonstop
JetBlue Logo
7:31 pm - 10:18 pm
BOS
-
DEN
4h 47mnonstop
$177JetBlue
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
11:13 pm - 5:00 am
DEN
-
BOS
3h 47mnonstop
Multiple Airlines Logo
6:00 am - 11:56 am
BOS
-
DEN
7h 56m
1 stop
$178Multiple Airlines
Wed, Apr 15 - Tue, Apr 21
Frontier Logo
11:59 pm - 11:45 am
DEN
-
BOS
9h 46m
1 stop
Frontier Logo
6:00 am - 12:09 pm
BOS
-
DEN
8h 09m
1 stop
$180Frontier
Fri, Feb 27 - Sun, Mar 1
Frontier Logo
11:49 am - 1:13 am
DEN
-
BOS
11h 24m
1 stop
Frontier Logo
6:00 am - 10:10 pm
BOS
-
DEN
18h 10m
1 stop
$181Frontier
Wed, Feb 18 - Mon, Feb 23
Southwest Logo
6:20 am - 2:20 pm
DEN
-
BOS
6h 00m
1 stop
Southwest Logo
4:45 pm - 7:30 pm
BOS
-
DEN
4h 45mnonstop
$187Southwest
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
6:50 am - 5:07 pm
DEN
-
PWM
8h 17m
1 stop
American Airlines Logo
5:40 pm - 10:37 pm
PWM
-
DEN
6h 57m
1 stop
$251American Airlines
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
7:00 am - 5:27 pm
DEN
-
PWM
8h 27m
1 stop
American Airlines Logo
6:00 am - 1:38 pm
PWM
-
DEN
9h 38m
2 stops
$256American Airlines
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
6:00 am - 3:14 pm
DEN
-
PWM
7h 14m
1 stop
United Airlines Logo
4:23 pm - 9:55 pm
PWM
-
DEN
7h 32m
1 stop
$277United Airlines
Fri, May 1 - Sat, May 9
United Airlines Logo
2:10 pm - 11:23 pm
DEN
-
PWM
7h 13m
1 stop
United Airlines Logo
3:23 pm - 6:02 pm
PWM
-
DEN
4h 39mnonstop
$296United Airlines
Wed, Mar 18 - Tue, Mar 24
Southwest Logo
5:40 am - 3:55 pm
DEN
-
PWM
8h 15m
1 stop
Southwest Logo
5:30 am - 12:40 pm
PWM
-
DEN
9h 10m
2 stops
$309Southwest
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 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 $267 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $333 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 Sunday 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 23% 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$108
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 14% 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 $278 on average. Morning departures are around 9% 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 $364.

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 4267 reviews
7.5Entertainment
8.6Crew
8.1Boarding
7.0Food
8.0Comfort
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

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.

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

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

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

Information on your arrival and departure airports