$324 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 5/13. 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
$660
Multiple Airlines
Tue 3/31Tue 4/7
JFK - SOU • 2 stops
Cheapest one-way
$324
Delta
Wed 5/13
SFO - SOU • 1 stop
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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, Mar 31 - Tue, Apr 7
Multiple Airlines Logo
8:30 pm - 7:30 pm
JFK
-
SOU
18h 00m
2 stops
Multiple Airlines Logo
9:10 am - 10:05 pm
SOU
-
JFK
17h 55m
2 stops
$660Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
4:40 pm - 3:35 pm
JFK
-
SOU
18h 55m
2 stops
Multiple Airlines Logo
4:05 pm - 2:50 pm
SOU
-
JFK
26h 45m
2 stops
$670Multiple Airlines
Wed, Feb 11 - Mon, Feb 23
Delta Logo
4:45 pm - 8:25 am
JFK
-
SOU
10h 40m
1 stop
Delta Logo
5:40 pm - 11:29 am
SOU
-
JFK
22h 49m
1 stop
$677Delta
Mon, Feb 9 - Wed, Feb 25
Delta Logo
6:50 pm - 5:05 pm
JFK
-
SOU
17h 15m
1 stop
Delta Logo
8:50 am - 7:20 pm
SOU
-
JFK
15h 30m
1 stop
$679Delta
Wed, Mar 4 - Tue, Mar 24
Delta Logo
1:59 pm - 5:25 pm
JFK
-
SOU
22h 26m
2 stops
Delta Logo
5:35 pm - 12:25 pm
SOU
-
JFK
22h 50m
1 stop
$681Delta
Sun, Mar 15 - Wed, Apr 1
KLM Logo
7:45 pm - 8:20 am
JFK
-
SOU
32h 35m
1 stop
KLM Logo
5:20 pm - 7:10 pm
SOU
-
JFK
30h 50m
1 stop
$692KLM
Wed, Mar 11 - Wed, Mar 18
KLM Logo
11:37 am - 8:20 am
MCO
-
SOU
16h 43m
2 stops
KLM Logo
5:35 pm - 6:00 pm
SOU
-
MCO
28h 25m
1 stop
$757KLM
Sat, Feb 7 - Mon, Feb 23
Aer Lingus Logo
5:45 pm - 8:45 am
EWR
-
SOU
10h 00m
1 stop
Aer Lingus Logo
4:05 pm - 4:15 pm
SOU
-
EWR
29h 10m
1 stop
$816Aer Lingus
Mon, May 11 - Mon, May 18
Aer Lingus Logo
5:35 pm - 8:40 am
EWR
-
SOU
10h 05m
1 stop
Aer Lingus Logo
8:00 pm - 4:05 pm
SOU
-
EWR
25h 05m
1 stop
$909Aer Lingus
Sun, Feb 8 - Sun, Feb 15
Virgin Atlantic Logo
4:50 pm - 5:05 pm
MIA
-
SOU
19h 15m
1 stop
Virgin Atlantic Logo
5:45 pm - 12:53 am
SOU
-
MIA
36h 08m
2 stops
$932Virgin Atlantic
Useful Info

Good to know - Book Cheap Portsmouth Plane Tickets

Low seasonApril
Cheapest flight$324
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from San Francisco 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 3 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 8120 reviews
8.1Boarding
7.9Comfort
7.2Food
8.5Crew
7.8Entertainment
Airline reviews

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

2.0 MediocreJulia, Jan 2026
MSP - BOS
Read more Delta reviews

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

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!

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