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Find cheap flights from Denver to Portsmouth from $89

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 Portsmouth departing on 6/4. 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
0 bags
Fri 6/21
Fri 6/28

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Good to know

Low season

January

High season

July

Cheapest flight

$89
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Denver to Boston

When to book flights from Denver to Portsmouth

Are your dates flexible? Find out the best times to travel from Denver to Portsmouth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Denver to Portsmouth

  • Which airports will I be using when flying from Denver to Portsmouth?

    When flying out of Denver you’ll be using Denver Intl. Portsmouth does not have its own airport so you’ll be flying into nearby Boston Logan Intl airport, which is 50.3 mi away.

  • How long does a flight from Denver to Portsmouth take?

    Direct flights cover the 1,748 miles separating Denver and Portsmouth in about 3h 48m.

  • How many flights are there between Denver and Portsmouth?

    25 direct flights run between Denver and Portsmouth on a daily basis. On average, there are about 176 departures each week.

  • What’s the cheapest day of the week to fly between Denver and Portsmouth?

    Consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Saturdays and the most expensive ones on Fridays.

  • How does KAYAK find such low prices on flights from Denver to Portsmouth?

    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 Portsmouth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth from Denver 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 Portsmouth?

    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 to Portsmouth with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Portsmouth?

    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 to Portsmouth from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Denver to Portsmouth?

    In the last 72 hours, the cheapest one-way ticket between Denver and Portsmouth found on KAYAK was with Sun Country Air for $89. Frontier offered a round-trip connection from $180 and JetBlue from $187.

See more FAQs

Top tips for finding cheap flights from Denver to Portsmouth

  • There is no airport in Portsmouth. Instead, you’ll be flying into Boston Logan Airport when flying between Denver and Portsmouth.
  • The cheapest flight from Denver to Portsmouth was found 62 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is January.
See more tips

Top 5 airlines serving Denver to Portsmouth

 
Need help choosing which airline to fly with from Denver to Portsmouth? 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
DeltaOverall score based on 10585 reviews
8.0Entertainment
8.2Boarding
7.4Food
7.9Comfort
8.6Crew
Airline reviews

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

6.0 GoodPeter, May 2024SLC - HNL
Read more about Delta reviews

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

Safe and on time were the positives. The plane wasn't cleaned before boarding, there was garbage and food on the floor and in the seat pocket. The TV screen was small and the picture fuzzy, audio quality was poor. Seatbelt was fraying and seat did not recline properly. No charging ports near the seats,

Confusing. Delay updates were out of whack At one point it said my flight was 25 hours. Three gate changes and two delays only to change back to original departure time. Gate announcer and on board flight attendant (Alejandro) making the announcements was impossible to understand due to accent and speed of speech. After beverage service the rear flight attendants sat back there on their phones. No refills no checking in, one sweep through for trash collection. Very impersonal. Bring back Coke products

Delayed departure. Delayed after landing pulling into gate. Delay due to sky bridge malfunction

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Terrible. Flight was cancelled due to the weather in the east and sout east(florida). Did not get any compesation of any kind. According to them, it was not under their control so I lost all the money paid for the 2 fairs from Raleigh, NC to Orlando, Fl.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

Too many fees (but that seems to apply to all airlines nowadays)

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

Delayed for maintenance issue?? Should have been addressed before boarding. Put my bag on an earlier flight, but didn’t ask if I wanted to change to an earlier flight. Arrived to find my bag locked up and no agent to be found when I landed.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Took off over an hour late with multiple mechanical issues. Gate agent in Dallas was lazy and was slow as molasses. Had a line 10 people long. Spirit bad..

The flight was short. However, my bag was delayed and was put on another flight.

Flight attendant was incredible. Very efficient, friendly and pleasant. Patricia was one of the best I have ever seen. Please give her a big raise!

LIT to DFW - 3 hours late; the entire plane had been boarded before they told us there was a delay due to a weather-related ground stop in Dallas. DFW to MAY - 2+ hours late due to A/C needing to be repaired after everyone had boarded, then when we finally reach the runway, the First Officer timed out and we had to taxi all the way back to the gate and wait for a new one. I arrived in New Orleans 5+ hours later than I should have. Return flights were completely cancelled; rebooked through the app to fly through CLT instead of DFW. MSY to CLT had no issues, but CLT to LIT was delayed 1.25 hrs because flight attendants had not arrived to the airport yet. At least they didn’t make us all sit on the plane to wait for them. I should have driven.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in-flight WiFi. Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay that much for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a shitty attitude for no reason, nor will they act the way this woman did. Unacceptable.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Fecal matter in seat back pocket. Presumably from a kids diaper.

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Left Denver late, then sat on tarmac 30 min after arrival

Everything was good, 20/30 minutes late waiting on a crew member. It’s hard to keep employees. Or serious employees I know. I remember one flight from Houston of Frontiers was almost 18 hours late. And another 4 hours late very poor. But I would rather be late and safe than the on the news. Thank you.

Bought seats on the flight and they were supposed to be 2 and a jumpseat. Plane clearly changed and it was a regular 3 seat row. Asked for a refund and was denied. If I wanted to sit next to someone else I wouldn't have bought the seats..

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

It’s a cheap airline and I wish if they had better seats.

Seats are cramped and uncomfortable. You have to pay for everything and it is very expensive.

For a busy travel season, everything was clearly marked, correct, and smooth. My favorite travel description is “UNEVENTFUL,” and this trip met the mark!

Book cheap flights from Denver to Portsmouth

Recent round-trip flight deals

6/3Mon
1 stop
14h 28mDEN-BOS
6/11Tue
1 stop
12h 15mBOS-DEN
$171
6/3Mon
1 stop
14h 28mDEN-BOS
6/5Wed
1 stop
9h 40mBOS-DEN
$176
8/15Thu
nonstopJetBlue
3h 54mDEN-BOS
8/27Tue
nonstopJetBlue
4h 30mBOS-DEN
$187
8/14Wed
nonstopUnited Airlines
4h 01mDEN-BOS
8/19Mon
nonstopUnited Airlines
4h 38mBOS-DEN
$192
8/28Wed
1 stopAmerican Airlines
6h 22mDEN-BOS
9/4Wed
1 stopAmerican Airlines
8h 28mBOS-DEN
$195
8/15Thu
nonstopJetBlue
3h 54mDEN-BOS
8/27Tue
1 stopJetBlue
7h 58mBOS-DEN
$196
8/21Wed
1 stopAmerican Airlines
7h 35mDEN-BOS
8/26Mon
1 stopAmerican Airlines
7h 24mBOS-DEN
$198
6/3Mon
nonstopUnited Airlines
3h 56mDEN-BOS
6/11Tue
1 stopUnited Airlines
6h 49mBOS-DEN
$202
6/19Wed
nonstopDelta
4h 12mDEN-BOS
6/20Thu
nonstopDelta
4h 31mBOS-DEN
$232
6/18Tue
nonstopDelta
4h 12mDEN-BOS
6/27Thu
nonstopDelta
4h 31mBOS-DEN
$292

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Recent one-way flight deals

6/4Tue
1 stopSun Country Air
15h 28mDEN-BOS
$89
6/4Tue
1 stopSun Country Air
15h 28mDEN-BOS
$91
7/23Tue
nonstopDelta
4h 03mDEN-BOS
$94
8/14Wed
1 stopAmerican Airlines
6h 22mDEN-BOS
$98
6/4Tue
nonstopUnited Airlines
4h 01mDEN-BOS
$99
5/29Wed
1 stopAmerican Airlines
7h 01mDEN-BOS
$102
7/8Mon
1 stopJetBlue
7h 20mDEN-BOS
$103
6/11Tue
nonstopJetBlue
3h 48mDEN-BOS
$104
6/18Tue
1 stopUnited Airlines
5h 59mDEN-BOS
$108
6/13Thu
nonstopDelta
4h 14mDEN-BOS
$169

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Last minute flights from Denver to Portsmouth

Last minute flight, train and bus deals

5/25Sat
nonstopJetBlue
3h 48mDEN-BOS
6/5Wed
nonstopJetBlue
4h 45mBOS-DEN
$269
5/26Sun
multi-stopJetBlue
7h 55mDEN-BOS
5/31Fri
nonstopJetBlue
4h 49mBOS-DEN
$278
5/27Mon
multi-stopFrontier
30h 45mDEN-BOS
6/5Wed
multi-stopFrontier
9h 40mBOS-DEN
$280
5/24Fri
nonstopUnited Airlines
3h 56mDEN-BOS
5/28Tue
multi-stopUnited Airlines
6h 40mBOS-DEN
$284
5/24Fri
multi-stopAmerican Airlines
7h 02mDEN-BOS
5/28Tue
multi-stopAmerican Airlines
8h 12mBOS-DEN
$285
5/23Thu
multi-stopAmerican Airlines
7h 19mDEN-BOS
5/28Tue
multi-stopAmerican Airlines
7h 37mBOS-DEN
$287
5/27Mon
multi-stopFrontier
30h 45mDEN-BOS
6/1Sat
multi-stopFrontier
7h 46mBOS-DEN
$296
5/27Mon
nonstopDelta
4h 05mDEN-BOS
5/31Fri
nonstopDelta
4h 38mBOS-DEN
$304
5/24Fri
multi-stopDelta
8h 56mDEN-BOS
5/31Fri
nonstopDelta
4h 38mBOS-DEN
$314
5/23Thu
multi-stopUnited Airlines
7h 12mDEN-BOS
5/27Mon
nonstopUnited Airlines
4h 31mBOS-DEN
$361

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Flights to Portsmouth