$94 Find Cheap Flights from Philadelphia 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 Philadelphia to Portsmouth departing on 7/1. 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
$179
Typical prices: $308-$147
JetBlue
Fri 7/3Sun 7/5
PHL - BOS • Non-stop
Cheapest non-stop
$177
Typical prices: $311-$154
JetBlue
Mon 7/27Mon 8/3
PHL - BOS • Non-stop
Arrival airport
You can't fly directly to Portsmouth. It is served by Boston (BOS), located 50.3 miles from Portsmouth.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Philadelphia to Portsmouth (PHL-BOS)

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

Fri, Jul 3 - Sun, Jul 5
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:10 am - 7:44 am
BOS
-
PHL
1h 34mnonstop
$179JetBlue
Fri, Jul 3 - Sun, Jul 5
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:10 am - 7:44 am
BOS
-
PHL
1h 34mnonstop
$180JetBlue
Fri, Jul 3 - Sun, Jul 5
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:10 am - 7:44 am
BOS
-
PHL
1h 34mnonstop
$183JetBlue
Wed, Jul 8 - Tue, Jul 21
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:21 pm - 8:00 pm
BOS
-
PHL
1h 39mnonstop
$186JetBlue
Fri, Jul 3 - Sun, Jul 5
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:10 am - 7:44 am
BOS
-
PHL
1h 34mnonstop
$187JetBlue
Fri, Jul 3 - Sat, Jul 11
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:21 pm - 8:00 pm
BOS
-
PHL
1h 39mnonstop
$188JetBlue
Sat, Jul 11 - Sun, Jul 12
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:49 am - 8:22 am
BOS
-
PHL
1h 33mnonstop
$190JetBlue
Fri, Jul 3 - Sun, Jul 5
JetBlue Logo
8:55 pm - 10:26 pm
PHL
-
BOS
1h 31mnonstop
JetBlue Logo
6:10 am - 7:44 am
BOS
-
PHL
1h 34mnonstop
$191JetBlue
Mon, Jun 29 - Wed, Jul 1
JetBlue Logo
9:29 pm - 10:59 pm
PHL
-
BOS
1h 30mnonstop
JetBlue Logo
6:10 am - 7:44 am
BOS
-
PHL
1h 34mnonstop
$192JetBlue
Tue, Nov 10 - Tue, Nov 10
JetBlue Logo
6:00 am - 7:24 am
PHL
-
BOS
1h 24mnonstop
JetBlue Logo
8:59 pm - 10:36 pm
BOS
-
PHL
1h 37mnonstop
$193JetBlue
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$94
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Philadelphia to Boston

When to book flights from Philadelphia to Portsmouth

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

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

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

    Direct flights cover the 279 miles separating Philadelphia and Portsmouth in about 1h 17m.

  • How many flights are there between Philadelphia and Portsmouth?

    52 direct flights run between Philadelphia and Portsmouth on a daily basis. On average, there are about 369 departures each week.

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

    Consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

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

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

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

    In the last 5 days, the cheapest one-way ticket between Philadelphia and Portsmouth found on KAYAK was with Frontier for $34. Frontier offered a round-trip connection from $45 and Delta from $85.

Top tips for finding cheap flights from Philadelphia to Portsmouth

  • There is no airport in Portsmouth. Instead, you’ll be flying into Boston Logan Airport when flying between Philadelphia and Portsmouth.
  • The cheapest flight from Philadelphia to Portsmouth was found 81 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 February, March and April. The cheapest month to fly is January.

Reviews of the top 4 airlines serving Philadelphia to Portsmouth

 
Need help choosing which airline to fly with from Philadelphia 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.
7.8
DeltaOverall score based on 8410 reviews
7.2Food
7.8Comfort
8.5Crew
7.8Entertainment
8.1Boarding
Airline reviews

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

6.0 GoodSarah, Jun 2026
LGA - MYR
Read more Delta reviews

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

I tried to book a flight with Jet Blue. Your third party company hijacked my attempt with a website that looked like I was booking with Jet Blue. I realized it when I paid. I tried to cancel and was told by a man in India that there were no refunds. $735 stolen, Thanks Kayak!

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

Complete your trip to Portsmouth with a hotel stay or car rental