$71 Find Cheap Flights from Miami to Portsmouth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Miami to Portsmouth departing on 1/28. 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, 0 bags

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Everything you should know

Cheapest round-trip
$118
Overall average: $127
Multiple Airlines
Tue 1/6Sat 1/10
MIA - BOS • 1 stop
Cheapest non-stop
$121
Typical prices: $65-$210
Spirit Airlines
Sat 1/10Tue 1/20
MIA - BOS • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Miami to Portsmouth (MIA-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Miami to Portsmouth 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 Miami to Portsmouth

Tue, Jan 6 - Sat, Jan 10
Multiple Airlines Logo
8:00 am - 1:19 am
MIA
-
BOS
17h 19m1 stop
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$118Multiple Airlines
Thu, Feb 5 - Fri, Feb 6
Multiple Airlines Logo
7:09 pm - 1:13 am
MIA
-
BOS
6h 04m1 stop
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$119Multiple Airlines
Sat, Jan 10 - Tue, Jan 20
Spirit Airlines Logo
12:56 pm - 4:19 pm
MIA
-
BOS
3h 23mnonstop
Spirit Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$121Spirit Airlines
Mon, Feb 9 - Tue, Feb 10
Spirit Airlines Logo
12:56 pm - 4:19 pm
MIA
-
BOS
3h 23mnonstop
Spirit Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$122Spirit Airlines
Wed, Feb 25 - Mon, Mar 9
Multiple Airlines Logo
1:04 pm - 4:28 pm
MIA
-
BOS
3h 24mnonstop
Multiple Airlines Logo
11:06 am - 6:56 pm
BOS
-
MIA
7h 50m1 stop
$123Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Spirit Airlines Logo
12:56 pm - 4:19 pm
MIA
-
BOS
3h 23mnonstop
Spirit Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$124Spirit Airlines
Wed, Jan 14 - Mon, Jan 19
Multiple Airlines Logo
1:01 pm - 1:13 am
MIA
-
BOS
12h 12m2 stops
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$125Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Southwest Logo
4:50 pm - 10:55 pm
MIA
-
BOS
6h 05m1 stop
Southwest Logo
4:10 pm - 10:25 pm
BOS
-
MIA
6h 15m1 stop
$126Southwest
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
2:57 pm - 1:03 am
MIA
-
BOS
10h 06m1 stop
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$127Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Multiple Airlines Logo
2:57 pm - 1:03 am
MIA
-
BOS
10h 06m1 stop
Multiple Airlines Logo
5:23 pm - 9:05 pm
BOS
-
MIA
3h 42mnonstop
$128Multiple Airlines
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$71
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Miami to Boston

When to book flights from Miami to Portsmouth

Are your dates flexible? Find out the best times to travel from Miami 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 Miami to Portsmouth

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

    When flying out of Miami you’ll be using Miami. 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 Miami to Portsmouth take?

    Direct flights cover the 1,259 miles separating Miami and Portsmouth in about 3h 13m.

  • How many flights are there between Miami and Portsmouth?

    45 direct flights run between Miami and Portsmouth on a daily basis. On average, there are about 315 departures each week.

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

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

  • How does KAYAK find such low prices on flights from Miami 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 Miami to Portsmouth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth from Miami 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 Miami 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 Miami with another airline.

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

    In the last 72 hours, the cheapest one-way ticket between Miami and Portsmouth found on KAYAK was with Frontier for $28. Frontier offered a round-trip connection from $35 and Spirit Airlines from $48.

Top tips for finding cheap flights from Miami to Portsmouth

  • There is no airport in Portsmouth. Instead, you’ll be flying into Boston Logan Airport when flying between Miami and Portsmouth.
  • The cheapest flight from Miami to Portsmouth was found 48 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is January.

Reviews of the top 5 airlines serving Miami to Portsmouth

 
Need help choosing which airline to fly with from Miami 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.
7.9
DeltaOverall score based on 8011 reviews
8.5Crew
7.9Entertainment
7.3Food
8.1Boarding
7.9Comfort
Airline reviews

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

4.0 OkayCarl, Dec 2025
FLL - LGA
Read more Delta reviews

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Non stop on long haul is the way to go. Great experience

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

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

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Flight was late and missed connecting flight. They could have better accommodated, but instead did an overnight and had to arrive the next afternoon.

The flight was delayed leaving Miami. When we arrived in Charlotte, we were unable to park at our scheduled gate. We had to wait another 30-45 minutes before we could park at a different gate. All in all, we were delayed by almost two hours arriving in Charlotte.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

There was a fowl odour coming from the lavatory the entire flight

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Spend hours delayed with no food, water anything sitting on the aieplane with no ability to eat or use the restroom. My entire experience was the absolute worst. I will never fly jet Blue again.

It would have been nice if they had offered more than one set of snacks

Flight was delayed several 3 hours - no reason was given and no communication what so ever.

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

Everything was smoothly and convenient! Just stay in this way!

Flight was on time. Friendly crew. Gate agents in the other hand were very unfriendly.

Speaker airport didn't work well, so we couldn't hear the boarding call but the plane was on time leaving and on time arriving took a while for them to open the door and there was a non-disruptive guy who was inebriated a few rows ahead of us. Overall the flight was good and we appreciate the on-time-ness

Bought round trip tickets. Ended up upgrading to first class. Both flights were new planes but hadn’t been equipped with WiFi and there were no charging ports at my seat despite it being new and first class accommodations.

Very uncomfortable seat. Hard bar under cushion. Flight had no solution except to walk a around at times

Endless, trip oof my life, we still are in in plane waiting for getting off.after 3 hours delay. Not even a glass of water.

To be Honest they canceled my flight and didn't have other options. Until 4 says later and I have a 2yr old very disappointed.

Flight was delayed. (To be excepted because of TSA shortage) I’m super short and still struggled with leg room, there was no screen, and the seat didn’t recline at all.

Boarding was easy. I loved that they sat our family together even though we didn't pay for specific seats. I thought $5+ was a lot for pretzels and wish they had a small free snack.

Prices for bags are extremely expensive and if you go higher on weight, the charge is ridiculous.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

The experience was good. No frills but I got there safe and sound and on time.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

Everything you need to know for your flight from Miami to Portsmouth

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