$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 7/24. 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

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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Best New Hampshire Flight Deals from Denver

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Bostonnonstop$217
Lebanon
Lebanon1 stop$475
Portland
Portland1 stop$247
Boston
Bostonnonstop$217
Lebanon
Lebanon1 stop$475
Portland
Portland1 stop$247

Cheap Flights from Denver to New Hampshire

 
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, Jul 10 - Tue, Jul 15
Delta Logo
11:59 pm - 6:00 amDEN-BOS
4h 01mnonstop
Delta Logo
8:25 pm - 11:04 pmBOS-DEN
4h 39mnonstop
$217Delta
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Sun, Aug 17 - Thu, Aug 21
Frontier Logo
9:15 pm - 10:58 amDEN-BOS
11h 43m1 stop
Frontier Logo
8:47 am - 7:21 pmBOS-DEN
12h 34m1 stop
$221Frontier
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Thu, Jul 31 - Mon, Aug 11
Alaska Airlines Logo
5:50 pm - 8:00 amDEN-BOS
12h 10m1 stop
Alaska Airlines Logo
9:20 am - 7:32 pmBOS-DEN
12h 12m1 stop
$236Alaska Airlines
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Thu, Jul 10 - Wed, Jul 16
American Airlines Logo
2:06 pm - 11:01 pmDEN-BOS
6h 55m1 stop
American Airlines Logo
8:08 am - 1:09 pmBOS-DEN
7h 01m1 stop
$238American Airlines
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Tue, Jul 8 - Thu, Jul 17
Southwest Logo
11:55 pm - 9:50 amDEN-BOS
7h 55m1 stop
Southwest Logo
5:35 am - 8:05 amBOS-DEN
4h 30mnonstop
$247Southwest
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Wed, Sep 10 - Mon, Sep 15
Southwest Logo
5:15 pm - 11:10 pmDEN-BOS
3h 55mnonstop
Southwest Logo
7:10 am - 1:25 pmBOS-DEN
8h 15m1 stop
$252Southwest
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Thu, Aug 28 - Mon, Sep 1
American Airlines Logo
12:29 pm - 11:59 pmDEN-BOS
9h 30m1 stop
American Airlines Logo
7:34 am - 3:02 pmBOS-DEN
9h 28m1 stop
$254American Airlines
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Sun, Aug 10 - Wed, Aug 20
United Airlines Logo
11:59 pm - 6:01 amDEN-BOS
4h 02mnonstop
United Airlines Logo
1:50 pm - 9:59 pmBOS-DEN
10h 09m1 stop
$303United Airlines
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Mon, Sep 1 - Fri, Sep 12
United Airlines Logo
11:59 pm - 5:59 amDEN-BOS
4h 00mnonstop
United Airlines Logo
5:05 pm - 7:40 pmBOS-DEN
4h 35mnonstop
$307United Airlines
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Wed, Oct 8 - Sat, Oct 11
Alaska Airlines Logo
7:02 pm - 6:00 amDEN-BOS
8h 58m1 stop
Alaska Airlines Logo
8:01 am - 11:47 pmBOS-DEN
17h 46m1 stop
$335Alaska Airlines
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Useful Info

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 $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 $341 and $338 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. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.


Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$108
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 19% 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 $273 on average. Morning departures are around 4% 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 $406.

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 $154 one-way - $253 round-trip

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 4287 reviews
8.2Boarding
8.0Comfort
7.6Entertainment
7.1Food
8.6Crew
Airline reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

6.0 GoodDavid, Jun 2025BWI - COS
Read more Southwest reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

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

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

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

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