$278 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 2/25. 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 23% 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
$543
Multiple Airlines
Thu 2/26Thu 3/5
JFK - SOU • 2 stops
Cheapest one-way
$278
Multiple Airlines
Wed 2/25
BOS - SOU • 3 stops
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

Thu, Feb 26 - Thu, Mar 5
Multiple Airlines Logo
9:45 am - 7:40 pm
JFK
-
SOU
28h 55m
2 stops
Multiple Airlines Logo
8:10 pm - 10:39 pm
SOU
-
JFK
31h 29m
2 stops
$543Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
Multiple Airlines Logo
4:30 pm - 7:40 pm
EWR
-
SOU
22h 10m
2 stops
Multiple Airlines Logo
8:10 pm - 3:43 pm
SOU
-
EWR
24h 33m
2 stops
$543Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
Aer Lingus Logo
5:45 pm - 8:45 am
EWR
-
SOU
10h 00m
1 stop
Aer Lingus Logo
9:30 am - 4:15 pm
SOU
-
EWR
11h 45m
1 stop
$628Aer Lingus
Wed, Feb 25 - Wed, Mar 4
Aer Lingus Logo
5:10 pm - 8:45 am
BOS
-
SOU
10h 35m
1 stop
Aer Lingus Logo
12:25 pm - 6:59 pm
SOU
-
BOS
11h 34m
1 stop
$629Aer Lingus
Sun, Feb 1 - Tue, Feb 17
Delta Logo
12:00 pm - 8:50 am
BOS
-
SOU
15h 50m
2 stops
Delta Logo
5:35 pm - 1:25 pm
SOU
-
BOS
24h 50m
1 stop
$646Delta
Wed, Mar 4 - Mon, Mar 9
Delta Logo
6:50 pm - 5:25 pm
JFK
-
SOU
17h 35m
1 stop
Delta Logo
5:40 pm - 12:25 pm
SOU
-
JFK
22h 45m
1 stop
$646Delta
Thu, Feb 26 - Thu, Mar 5
Virgin Atlantic Logo
5:45 pm - 8:20 am
JFK
-
SOU
9h 35m
1 stop
Virgin Atlantic Logo
8:50 am - 7:20 pm
SOU
-
JFK
15h 30m
1 stop
$664Virgin Atlantic
Sun, Jan 25 - Mon, Feb 2
Virgin Atlantic Logo
1:55 pm - 5:05 pm
SFO
-
SOU
19h 10m
1 stop
Virgin Atlantic Logo
9:25 am - 11:50 am
SOU
-
SFO
34h 25m
1 stop
$693Virgin Atlantic
Sun, Jan 25 - Mon, Feb 2
KLM Logo
7:00 am - 8:50 am
SFO
-
SOU
17h 50m
2 stops
KLM Logo
5:35 pm - 11:50 am
SOU
-
SFO
26h 15m
1 stop
$745KLM
Thu, Feb 26 - Thu, Mar 5
KLM Logo
1:45 pm - 5:00 pm
LAX
-
SOU
19h 15m
1 stop
KLM Logo
8:50 am - 11:45 am
SOU
-
LAX
34h 55m
1 stop
$749KLM
Useful Info

Good to know - Book Cheap Portsmouth Plane Tickets

Low seasonApril
Cheapest flight$278
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Boston to Southampton

FAQs - booking Portsmouth flights

  • How to fly to Portsmouth?

    You cannot fly directly to Portsmouth. KAYAK recommends you fly to Southampton Eastleigh (SOU) (14.67 miles from Portsmouth). From there you can rent a car or get a taxi.

  • What airports are near Portsmouth?

    The closest airport is Southampton Eastleigh (SOU) (14.67 mi). Other nearby airports are Bournemouth (BOH) (32.95 mi), London Gatwick (LGW) (45.91 mi), London Heathrow (LHR) (52.65 mi) or London All airports (LON) (63.13 mi). KAYAK recommends you fly to Southampton Eastleigh.

  • How far is Southampton Eastleigh Airport from central Southampton?

    You’ll need to travel 3 miles to reach the Southampton city center from Southampton Eastleigh Airport.

  • What is the name of Southampton’s airport?

    There is only 1 airport in Southampton, called Southampton Eastleigh Airport (SOU). It can also be referred to as Eastleigh or Southampton.

  • 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 London's airports. We recommend you fly to London Heathrow Airport Airport, however you can also fly to London Gatwick Airport airport, London City Airport airport, London Luton Airport airport, London Stansted Airport airport or London Southend Airport airport.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.

Reviews of the top 4 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.
7.9
DeltaOverall score based on 8038 reviews
7.2Food
7.9Comfort
7.8Entertainment
8.1Boarding
8.5Crew
Airline reviews

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

8.0 ExcellentG, Jan 2026
FLL - ATL
Read more Delta reviews

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

Flight was on time, staff are friendly and helpful onboard.

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

Everything you need to know for your flight to Portsmouth