$49 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.
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Cheap Flight Deals 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.

Recent round-trip flight deals from Philadelphia to Portsmouth

KAYAK's recommended round-trip deals from the most popular airlines that fly from Philadelphia to Portsmouth.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
6:30 am - 7:59 amPHL-BOS
1h 29mnonstop
Frontier Logo
9:01 am - 10:43 amBOS-PHL
1h 42mnonstop
$96Frontier
Find Deal
Tue, Jul 29 - Tue, Aug 5
Frontier Logo
6:30 am - 7:59 amPHL-BOS
1h 29mnonstop
Frontier Logo
9:01 am - 10:43 amBOS-PHL
1h 42mnonstop
$98Frontier
Find Deal
Tue, Aug 5 - Tue, Aug 12
 Logo
7:55 pm - 9:03 amPHL-BOS
13h 08m1 stop
 Logo
9:01 am - 10:44 amBOS-PHL
1h 43mnonstop
Thu, Jun 12 - Sun, Jun 15
 Logo
7:55 pm - 9:03 amPHL-BOS
13h 08m1 stop
 Logo
9:01 am - 10:44 amBOS-PHL
1h 43mnonstop
Thu, Jun 12 - Sun, Jun 15
JetBlue Logo
10:16 am - 11:39 amPHL-BOS
1h 23mnonstop
JetBlue Logo
8:50 pm - 10:21 pmBOS-PHL
1h 31mnonstop
$147JetBlue
Find Deal
Wed, May 14 - Sat, May 17
Delta Logo
7:20 am - 8:45 amPHL-BOS
1h 25mnonstop
Delta Logo
3:40 pm - 5:17 pmBOS-PHL
1h 37mnonstop
$167Delta
Find Deal
Sat, May 31 - Tue, Jun 3
JetBlue Logo
6:00 am - 7:15 amPHL-BOS
1h 15mnonstop
JetBlue Logo
8:00 am - 9:38 amBOS-PHL
1h 38mnonstop
$168JetBlue
Find Deal
Tue, May 27 - Wed, Jun 4
Delta Logo
5:27 pm - 7:04 pmPHL-BOS
1h 37mnonstop
Delta Logo
11:05 am - 12:42 pmBOS-PHL
1h 37mnonstop
$187Delta
Find Deal
Fri, Jul 18 - Mon, Jul 21
American Airlines Logo
1:48 pm - 3:11 pmPHL-BOS
1h 23mnonstop
American Airlines Logo
6:59 am - 11:21 amBOS-PHL
4h 22m1 stop
$207American Airlines
Find Deal
Sat, Jun 7 - Sun, Jun 8
American Airlines Logo
9:20 pm - 10:51 pmPHL-BOS
1h 31mnonstop
American Airlines Logo
7:21 pm - 8:55 pmBOS-PHL
1h 34mnonstop
$208American Airlines
Find Deal
Fri, May 23 - Sat, May 31
Useful Info

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$49
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 8% increase in price.
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 15m.

  • How many flights are there between Philadelphia and Portsmouth?

    66 direct flights run between Philadelphia and Portsmouth on a daily basis. On average, there are about 464 departures each week.

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

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

  • 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 72 hours, the cheapest one-way ticket between Philadelphia and Portsmouth found on KAYAK was with Frontier for $49. Frontier offered a round-trip connection from $96 and JetBlue from $147.

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 30 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 May, June and July. The cheapest month to fly is August.

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.
8.0
DeltaOverall score based on 7936 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

It was too hot in the cabin. The AC did not help.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

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

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

I had a very unpleasant encounter with one man from customer service: he was extremely rude and miserable. And his condition was reflected on his decision to send me to the worst airport hotel and get an awful flight connection. My hotel shuttle had never arrived and I had to book another hotel. People served by other representatives got a much better treatment and deal.

The flight left a bit late, but arrived close to time expected…With the flight being close to full the crew did well serving drinks to all in a very timely fashion. The flight was a pleasure…

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

My flight back my reservations were list because they said I didn't pay my pet fee when I had a receipt

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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

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