$72 Find Cheap Flights 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 to Portsmouth departing on 8/19. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portsmouth

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$157
Typical prices: $334-$160
Delta
Tue 6/23Wed 6/24
BWI - BOS • Non-stop
Cheapest one-way
$72
Typical prices: $86-$273
Southwest
Wed 8/19
BWI - BOS • Non-stop
Arrival airport
You can't fly directly to Portsmouth. It is served by Boston (BOS), located 50.3 miles from Portsmouth.
FAQs
FAQs
FAQs
FAQs
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Portsmouth!
Flight Deals
Useful Info
Flight Deals

Cheap Flights to Portsmouth

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

Tue, Jun 23 - Wed, Jun 24
Delta Logo
6:17 am - 8:00 am
BWI
-
BOS
1h 43mnonstop
Delta Logo
6:35 am - 8:19 am
BOS
-
BWI
1h 44mnonstop
$157Delta
Thu, Sep 3 - Tue, Sep 8
Southwest Logo
8:15 am - 9:50 am
BWI
-
BOS
1h 35mnonstop
Southwest Logo
1:20 pm - 3:00 pm
BOS
-
BWI
1h 40mnonstop
$164Southwest
Wed, Jul 1 - Wed, Jul 8
United Airlines Logo
10:10 pm - 11:59 pm
IAD
-
BOS
1h 49mnonstop
United Airlines Logo
5:45 am - 7:23 am
BOS
-
IAD
1h 38mnonstop
$174United Airlines
Wed, Jun 24 - Tue, Jun 30
Frontier Logo
5:05 am - 7:52 am
ATL
-
BOS
2h 47mnonstop
Frontier Logo
6:00 am - 9:06 am
BOS
-
ATL
3h 06mnonstop
$176Frontier
Tue, Jun 30 - Wed, Jul 8
United Airlines Logo
1:00 pm - 7:28 pm
DCA
-
BOS
6h 28m
1 stop
United Airlines Logo
6:05 am - 10:23 am
BOS
-
DCA
4h 18m
1 stop
$177United Airlines
Sun, Aug 23 - Sat, Aug 29
JetBlue Logo
8:20 pm - 11:51 pm
ORD
-
BOS
2h 31mnonstop
JetBlue Logo
11:05 am - 12:59 pm
BOS
-
ORD
2h 54mnonstop
$178JetBlue
Thu, Oct 22 - Sat, Oct 31
JetBlue Logo
6:30 am - 10:46 am
DCA
-
BOS
4h 16m
1 stop
JetBlue Logo
2:35 pm - 4:20 pm
BOS
-
DCA
1h 45mnonstop
$178JetBlue
Tue, Jun 16 - Wed, Jun 17
Frontier Logo
5:05 am - 7:52 am
ATL
-
BOS
2h 47mnonstop
Frontier Logo
6:00 am - 9:06 am
BOS
-
ATL
3h 06mnonstop
$178Frontier
Wed, Sep 30 - Sat, Oct 3
American Airlines Logo
10:30 am - 2:08 pm
ORD
-
BOS
2h 38mnonstop
American Airlines Logo
6:00 am - 8:10 am
BOS
-
ORD
3h 10mnonstop
$181American Airlines
Fri, Jul 3 - Wed, Jul 15
American Airlines Logo
8:29 pm - 12:05 am
ORD
-
BOS
2h 36mnonstop
American Airlines Logo
3:28 pm - 5:38 pm
BOS
-
ORD
3h 10mnonstop
$192American Airlines
Useful Info

Good to know - Book Cheap Portsmouth Plane Tickets

Low seasonJanuary
Cheapest flight$72
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Baltimore to Boston

Flights to Portsmouth: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew to Portsmouth 
Verified travelerFlew with JetBlue
CLE
-
BOS
May 2026
When you book a flight you must use your official name on your real ID. I went by Liz as opposed to Elizabeth when I booked my ticket, and I almost had to purchase a new ticket.
alyciaFlew with American Airlines
LAX
-
BOS
Mar 2026
Switching terminals in Boston was a VERY long walk -- dont cut your connection close if you are going from B to E
NicoleFlew with JetBlue
LAX
-
BOS
Apr 2026
Bring your own snacks/food. Extra legroom is nice but not really worth the extra money, unless you want free alcohol.
Verified travelerFlew with JetBlue
DEN
-
BOS
May 2026
At DEN, be prepared for a long walk to JetBlue check in, and a lengthy trip through airport facilities to gates.
Verified travelerFlew with United Airlines
ORD
-
BOS
Apr 2026
Chicago airport is super chaotic. We had come in from an overseas flight and were required to get our checked bags at Baggage Claim and recheck them for our next flight, which took a while. Then after going through a LONG customs line (again) and rechecking my bag, I was told to take a shuttle to a different terminal for my final flight. Even though I never left the building and had no access to the outside world, I had to go through security AGAIN (boots off, dump out my water, wait in long lines…) My advice is to be sure you have at least a couple of hours between flights to deal with the insanity.
MitchellFlew with Delta
PHX
-
BOS
Jan 2026
If you need to make a change due to weather, book early
WeiFlew with JetBlue
JFK
-
BOS
Feb 2026
Get to JFK early due to construction and route changes.
rsmrostovFlew with Alaska Airlines
SEA
-
BOS
Jan 2026
If you have a small personal bag and a personal item you will be hustled to consolidate snacks on the flight of very poor so bring your own food and if you have an Android phone you likely will have issues connecting to Wi-Fi on the plane especially if the connection was dropped in the middle of watching a movie and then you attempt to reinstate it sometimes you have to clear browsing history and cookies becomes painful
JonathanFlew with Delta
PHX
-
BOS
Jan 2025
Delta is great! Make sure to get to their airport early though. PHX security is a zoo.
Verified travelerFlew with Spirit Airlines
BWI
-
BOS
Dec 2024
Choose the early flights! Less people at the security line
ericFlew with Air New Zealand
SFO
-
BOS
Jan 2025
At least two hour connection Buy food pre-flight
Verified travelerFlew with Spirit Airlines
MYR
-
BOS
Oct 2024
The Boston airport was the worst airport I've ever been to for getting a rental car. Very little signage to tell you need to take a specific bus. Everyone around me had to ask if this was the bus & I only knew when to get off because there was a fellow passenger on the bus who was familiar.
Verified travelerFlew with Alaska Airlines
SEA
-
BOS
Jul 2024
Generally Alaska Airlines have very friendly and helpful people in my experience. They don’t have TVs in all planes so make sure to download their app if you want entertainment on the plane.
Verified travelerFlew with American Airlines
CMH
-
BOS
Aug 2024
Boston airport is very good airport. You may have to walk about 1 mile if the connecting flight is on terminal e. Lot of food options.
CarlaFlew with Cape Air
RKD
-
BOS
May 2024
Rockland and Cape Air were great. One suggestion: advise passenger to bring ear plugs or hand them out during boarding. Prop engines are loud. especially before take off.
slovely08Flew with JetBlue
MCO
-
BOS
May 2024
Terminal C is gigantic, prepare to walk for what seems like an eternity to get to your gate.
LeandroFlew with JetBlue
FLL
-
BOS
Apr 2024
Make sure to check what business lounges partner with Condor
DennisFlew with JetBlue
FLL
-
BOS
Feb 2024
If you are in groups D -F, gate check your carry on. There will be no space.
Verified travelerFlew with Spirit Airlines
TPA
-
BOS
Feb 2024
Give yourself a little extra time at the larger airports. Long lines at tsa

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Los Angeles5h 22m
    Flights from San Francisco5h 31m
    Flights from Atlanta2h 26m
    Flights from Washington, D.C. Reagan-National Airport1h 29m
    Flights from Chicago O'Hare Intl Airport2h 27m
  • What is the cheapest flight to Boston?

    In the last 5 days, the cheapest flight deal to Boston was found on the route from Baltimore, at $157 return. The most popular connection is from San Francisco to Boston and KAYAK users have found round-trip deals for as low as $319 in the last 5 days.

  • Which airlines fly to Boston?

    Many airlines fly to Boston, the most common ones being Delta, American Airlines, and JetBlue. See the amount of flights per week for popular airlines flying to Boston.

  • How to fly to Portsmouth?

    You cannot fly directly to Portsmouth. KAYAK recommends you fly to Boston Logan Intl (BOS) (50.32 miles from Portsmouth). From there you can rent a car or get a taxi.

  • What airports are near Portsmouth?

    The closest airport is Manchester (MHT) (35.49 mi). Other nearby airports are Portland (PWM) (45.77 mi) or Bedford Hanscom Field (BED) (49.37 mi). KAYAK recommends you fly to Boston Logan Intl.

  • How far is Boston Logan Intl Airport from central Boston?

    There are 3 miles between Boston city center and Boston Logan Intl Airport.

  • What is the name of Boston’s airport?

    There is only 1 airport in Boston, called Boston Logan Intl Airport (BOS). It can also be referred to as Boston Logan, General Edward Lawrence Logan Intl, or Logan Intl.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Portsmouth

  • There is no major airport in Portsmouth. It is instead served by Boston Logan Intl Airport.
  • Looking for cheap airfare to Portsmouth? 25% of our users found round-trip tickets to Portsmouth for the following prices or less: From Fort Lauderdale $377, from Miami $487, from Los Angeles $885
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.

Reviews of the top 5 airlines flying to Portsmouth

 
Need help choosing which airline to fly with from the United States 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
SouthwestOverall score based on 4254 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

Boarded early, left early, arrived 40 mins early! A win win for me!

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Since we started at syr the service, crews, and flights were just excellent

It was fine for what it was. It’s not luxury travel but it was efficient, for the most part. Having my carry-on transferred into luggage however, was unwelcome.

We had better-than-average leg room and I loved the access to shows and movies. During boarding, we could not hear the agent even though we were close to the boarding door, which was kind of scary when we realized that half of the passengers had already boarded. Also, the entertainment was awesome, but I could not hear the movie as well as I would have liked, because my headphones were crappy. It would have been better if I could connect my own ear buds via Bluetooth or if JetBlue provided headphones.

On time, friendly attendants, quick wheelchair assistance and help checking in bags. Also appreciated change in seats, more forward to make it easier for my 97 year old mother to board and exit the plane. Thank you, JetBlue!

Flight did not have onboard charging and TV screen flickering.

I was seated next to an autistic child who was out of control and had a child behind me kicking my seat for most of the trip. I will never fly JetBlue again. Ever. I don't care how cheap it is. It's terrible.

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

Boarding was easy. Provided drinks and snacks. Good aircraft and staff

Not very happy because of the long delaying which causes our luggages were not on the connection flight and nearly missed our connection flight.

Everything you need to know for your flight to Portsmouth