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Find cheap flights from Denver to Portsmouth from $75

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 5/19. 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
Wed 6/5
Wed 6/12

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Good to know

Low season

January

High season

July

Cheapest flight

$75
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 18% 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?

    23 direct flights run between Denver and Portsmouth on a daily basis. On average, there are about 163 departures each week.

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

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

  • 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 Frontier for $75. Frontier offered a round-trip connection from $154 and United Airlines from $192.

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 10818 reviews
8.2Boarding
7.4Food
8.6Crew
8.0Entertainment
7.9Comfort
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

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.

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

I had back trouble prior to my flight and everyone was great about helping me.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Everything was good except for deplaning in NY. Took way too long!!

Jet Blue keeps getting iit wrong. 4 hour mechanical delay followed by terrible boarding experience. This is my third horrific jet blue flight in 2024. I am going to try to avoid this loser in the sky

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.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

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!

The flight and crew were fine. When we (several groups) arrived in Norfolk on Sunday we discovered our bags had not arrived. The staff at norfolk airport was less than helpful. Told us our bags wouldn't arrive until Thursday. When asked what happened they said it bags never made it on the plane and it happened all the time. When asked about reimbursement for replacement items the desk agent said we could try to submit receipts online, but they weren't sure we would be reimbursed. I understand this is a low cost airline, but this was really beyond poor customer service.

Frontier is a no-frills airlines were the focus is low cost. You get basic service so don't set your expectations high. Watch out thought because this airline, like a few others, will try to nickel and dime you.

Book cheap flights from Denver to Portsmouth

Recent round-trip flight deals

5/19Sun
1 stopFrontier
12h 38mDEN-BOS
5/21Tue
1 stopFrontier
9h 05mBOS-DEN
$154
5/17Fri
1 stopFrontier
7h 01mDEN-BOS
5/18Sat
2 stopsFrontier
23h 42mBOS-DEN
$157
8/16Fri
nonstopUnited Airlines
4h 01mDEN-BOS
8/22Thu
nonstopUnited Airlines
4h 38mBOS-DEN
$192
9/28Sat
1 stopAmerican Airlines
6h 03mDEN-BOS
10/5Sat
1 stopAmerican Airlines
8h 44mBOS-DEN
$195
8/21Wed
1 stopJetBlue
7h 22mDEN-BOS
8/28Wed
nonstopJetBlue
4h 31mBOS-DEN
$196
5/20Mon
nonstopJetBlue
3h 48mDEN-BOS
5/25Sat
nonstopJetBlue
4h 41mBOS-DEN
$197
5/31Fri
1 stopAmerican Airlines
7h 41mDEN-BOS
6/5Wed
1 stopAmerican Airlines
8h 08mBOS-DEN
$198
8/14Wed
1 stopUnited Airlines
5h 53mDEN-BOS
8/22Thu
nonstopUnited Airlines
4h 38mBOS-DEN
$201
6/21Fri
nonstopDelta
4h 12mDEN-BOS
6/29Sat
nonstopDelta
4h 29mBOS-DEN
$232
10/22Tue
nonstopDelta
4h 00mDEN-BOS
10/31Thu
nonstopDelta
4h 39mBOS-DEN
$247

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Recent one-way flight deals

5/19Sun
1 stopFrontier
12h 38mDEN-BOS
$75
6/3Mon
1 stopSun Country Air
14h 28mDEN-BOS
$79
6/22Sat
nonstopJetBlue
3h 53mDEN-BOS
$94
6/10Mon
nonstopUnited Airlines
4h 01mDEN-BOS
$99
5/15Wed
1 stopAmerican Airlines
7h 41mDEN-BOS
$100
7/2Tue
1 stopJetBlue
8h 19mDEN-BOS
$113
5/18Sat
nonstopUnited Airlines
3h 53mDEN-BOS
$129
6/20Thu
1 stopAmerican Airlines
8h 48mDEN-BOS
$132
7/20Sat
nonstopDelta
4h 16mDEN-BOS
$169
5/11Sat
nonstopDelta
4h 05mDEN-BOS
$176

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Last minute flights from Denver to Portsmouth

Last minute flight, train and bus deals

5/6Mon
multi-stopFrontier
7h 20mDEN-BOS
5/16Thu
multi-stopFrontier
9h 15mBOS-DEN
$241
5/7Tue
multi-stopFrontier
7h 20mDEN-BOS
5/16Thu
multi-stopFrontier
9h 15mBOS-DEN
$242
5/7Tue
multi-stopAmerican Airlines
8h 54mDEN-BOS
5/14Tue
multi-stopAmerican Airlines
8h 12mBOS-DEN
$255
5/9Thu
multi-stopAmerican Airlines
5h 39mDEN-BOS
5/14Tue
multi-stopAmerican Airlines
8h 12mBOS-DEN
$256
5/7Tue
nonstopJetBlue
3h 48mDEN-BOS
5/13Mon
nonstopJetBlue
4h 41mBOS-DEN
$269
5/7Tue
nonstopJetBlue
3h 48mDEN-BOS
5/14Tue
multi-stopJetBlue
8h 29mBOS-DEN
$278
5/6Mon
multi-stopDelta
6h 00mDEN-BOS
5/11Sat
nonstopDelta
4h 38mBOS-DEN
$316
5/6Mon
nonstopDelta
4h 01mDEN-BOS
5/15Wed
nonstopDelta
4h 38mBOS-DEN
$324
5/9Thu
nonstopUnited Airlines
3h 57mDEN-BOS
5/25Sat
nonstopUnited Airlines
4h 42mBOS-DEN
$337
5/9Thu
nonstopUnited Airlines
3h 57mDEN-BOS
5/13Mon
nonstopUnited Airlines
4h 42mBOS-DEN
$342

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Flights to Portsmouth