$109 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 8/25. 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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Cheap Flights from Denver to New Hampshire

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Bostonnonstop$206
Lebanon
Lebanon1 stop$485
Portland
Portland1 stop$258
Boston
Bostonnonstop$206
Lebanon
Lebanon1 stop$485
Portland
Portland1 stop$258

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

Mon, Aug 25 - Sun, Aug 31
JetBlue Logo
10:39 pm - 4:35 amDEN-BOS
3h 56mnonstop
JetBlue Logo
6:35 am - 9:02 amBOS-DEN
4h 27mnonstop
$206JetBlue
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Tue, Aug 19 - Wed, Aug 20
JetBlue Logo
10:39 pm - 4:35 amDEN-BOS
3h 56mnonstop
JetBlue Logo
6:35 am - 9:02 amBOS-DEN
4h 27mnonstop
$212JetBlue
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Wed, Aug 27 - Mon, Sep 22
Delta Logo
11:29 am - 5:35 pmDEN-BOS
4h 06mnonstop
Delta Logo
7:40 am - 10:10 amBOS-DEN
4h 30mnonstop
$222Delta
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Wed, Aug 27 - Sat, Sep 13
Southwest Logo
7:00 am - 4:10 pmDEN-BOS
7h 10m1 stop
Southwest Logo
6:15 am - 8:40 amBOS-DEN
4h 25mnonstop
$232Southwest
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Wed, Aug 20 - Thu, Aug 21
Southwest Logo
6:45 am - 5:05 pmDEN-BOS
8h 20m1 stop
Southwest Logo
4:10 pm - 9:40 pmBOS-DEN
7h 30m1 stop
$236Southwest
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Thu, Sep 4 - Mon, Sep 8
American Airlines Logo
2:47 pm - 11:42 pmDEN-BOS
6h 55m1 stop
American Airlines Logo
9:00 am - 1:23 pmBOS-DEN
6h 23m1 stop
$245American Airlines
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Fri, Sep 26 - Mon, Sep 29
American Airlines Logo
2:17 pm - 10:40 pmDEN-BOS
6h 23m1 stop
American Airlines Logo
6:25 pm - 11:25 pmBOS-DEN
7h 00m1 stop
$247American Airlines
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Tue, Sep 30 - Wed, Oct 8
Delta Logo
6:25 am - 2:38 pmDEN-ORH
6h 13m1 stop
Delta Logo
3:18 pm - 8:44 pmORH-DEN
7h 26m1 stop
$272Delta
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Tue, Aug 26 - Sat, Aug 30
United Airlines Logo
10:01 am - 3:56 pmDEN-PWM
3h 55mnonstop
United Airlines Logo
5:02 pm - 9:59 pmPWM-DEN
6h 57m1 stop
$279United Airlines
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Tue, Aug 19 - Wed, Aug 27
United Airlines Logo
10:01 am - 3:56 pmDEN-PWM
3h 55mnonstop
United Airlines Logo
7:26 pm - 11:59 pmPWM-DEN
6h 33m1 stop
$304United Airlines
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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 $217 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $342 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, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$109
Best time to beat the crowds but there is an average 8% 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 $270 on average. Morning departures are around 2% 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 $403.

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 $153 one-way - $244 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 4241 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
7.5Entertainment
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

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!

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

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

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