$94 Find Cheap Flights from Colorado to New Hampshire

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Low seasonJanuary
High seasonJuly
Cheapest flight$94
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Denver to Boston

FAQs for booking flights from Colorado to New Hampshire

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado 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 Colorado 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 Colorado 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 Colorado 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 Colorado 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 day to fly to New Hampshire?

    Based on KAYAK data, the cheapest day to fly to New Hampshire is Wednesday where round-trip tickets can be as cheap as $312. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $381 on average.

  • 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 $287 on average. Morning departures are around 7% 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 $432.

  • What is the cheapest month to fly from Colorado to New Hampshire?

    The cheapest month for flights from Colorado to New Hampshire is September, when tickets cost $378 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $551 and $546 respectively.

  • How far in advance should I book a flight from Colorado to New Hampshire?

    To get a below average price on the flight from Colorado to New Hampshire, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

  • How long is the flight to New Hampshire?

    An average nonstop flight from Colorado to New Hampshire takes 8h 43m, covering a distance of 1854 miles. The shortest route is Denver (DEN) to Boston (BOS) with an average flight time of 3h 52m.

  • What are the most popular destinations in New Hampshire?

    Based on KAYAK flight searches, the most popular destination is Boston (68% of total searches to New Hampshire). The next most popular destinations are Portland (27%) and Manchester (3%). Searches for flights to Worcester (2%) and to Lebanon (0%) are also popular.

Top 3 airlines serving from Colorado to New Hampshire

Need help choosing which airline to fly with from Colorado 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 4294 reviews
8.0Comfort
8.2Boarding
7.6Entertainment
7.1Food
8.6Crew
Airline reviews

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

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

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

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

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 poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

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!

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Book cheap flights from Colorado to New Hampshire

Recent round-trip flight deals

5/31Sat
1 stopAlaska Airlines
9h 05mDEN-BOS
6/3Tue
1 stopAlaska Airlines
11h 19mBOS-DEN
$197
5/30Fri
1 stopAlaska Airlines
9h 05mDEN-BOS
6/3Tue
1 stopAlaska Airlines
11h 19mBOS-DEN
$213
6/17Tue
nonstopJetBlue
3h 56mDEN-BOS
6/24Tue
nonstopJetBlue
4h 29mBOS-DEN
$217
6/16Mon
nonstopUnited Airlines
4h 02mDEN-BOS
6/30Mon
nonstopUnited Airlines
4h 34mBOS-DEN
$221
5/20Tue
nonstopUnited Airlines
3h 59mDEN-BOS
6/3Tue
1 stopUnited Airlines
7h 23mBOS-DEN
$223
6/17Tue
1 stopJetBlue
7h 57mDEN-BOS
6/24Tue
nonstopJetBlue
4h 29mBOS-DEN
$229
6/4Wed
2 stopsSouthwest
7h 40mDEN-BOS
6/7Sat
nonstopSouthwest
4h 30mBOS-DEN
$232
6/3Tue
1 stopSouthwest
8h 45mDEN-BOS
6/7Sat
1 stopSouthwest
6h 20mBOS-DEN
$236
6/3Tue
1 stopAmerican Airlines
8h 04mDEN-BOS
6/10Tue
1 stopAmerican Airlines
7h 09mBOS-DEN
$238
8/19Tue
1 stopAmerican Airlines
9h 32mCOS-BOS
8/31Sun
1 stopAmerican Airlines
7h 28mBOS-COS
$247

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Recent one-way flight deals

5/24Sat
1 stopAlaska Airlines
9h 05mDEN-BOS
$94
6/4Wed
1 stopAlaska Airlines
9h 05mDEN-BOS
$96
5/12Mon
nonstopJetBlue
3h 53mDEN-BOS
$109
6/13Fri
nonstopSouthwest
4h 00mDEN-BOS
$111
8/5Tue
1 stopUnited Airlines
7h 29mDEN-BOS
$114
8/7Thu
1 stopUnited Airlines
7h 29mDEN-BOS
$116
6/11Wed
1 stopSouthwest
8h 05mDEN-BOS
$118
5/10Sat
2 stopsAmerican Airlines
9h 32mCOS-BOS
$124
6/13Fri
1 stopJetBlue
10h 27mDEN-PWM
$126
9/7Sun
1 stopAmerican Airlines
5h 37mDEN-ORH
$139

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Last minute flights from Colorado to New Hampshire

Last minute flight, train and bus deals

5/5Mon
multi-stopAmerican Airlines
9h 07mDEN-BOS
5/7Wed
multi-stopAmerican Airlines
9h 42mBOS-DEN
$237
5/5Mon
multi-stopAlaska Airlines
10h 00mDEN-BOS
5/6Tue
multi-stopAlaska Airlines
9h 38mBOS-DEN
$283
5/5Mon
multi-stopFrontier
22h 14mDEN-BOS
5/11Sun
multi-stopFrontier
24h 27mBOS-DEN
$288
5/5Mon
multi-stopFrontier
28h 01mDEN-BOS
5/12Mon
multi-stopFrontier
13h 59mBOS-DEN
$291
5/5Mon
nonstopSouthwest
4h 00mDEN-BOS
5/7Wed
nonstopSouthwest
4h 35mBOS-DEN
$297
5/5Mon
nonstopSouthwest
4h 00mDEN-BOS
5/7Wed
multi-stopSouthwest
6h 50mBOS-DEN
$307
5/3Sat
nonstopJetBlue
3h 50mDEN-BOS
5/9Fri
nonstopJetBlue
4h 51mBOS-DEN
$325
5/5Mon
nonstopUnited Airlines
3h 59mDEN-BOS
5/7Wed
nonstopUnited Airlines
4h 46mBOS-DEN
$360
5/5Mon
multi-stopUnited Airlines
9h 56mDEN-BOS
5/12Mon
nonstopUnited Airlines
4h 46mBOS-DEN
$366
5/4Sun
nonstopJetBlue
3h 47mDEN-BOS
5/9Fri
multi-stopJetBlue
7h 29mBOS-DEN
$406

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Everything you need to know for your flight to New Hampshire

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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