HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portsmouth

$46+ Cheap flights from Portsmouth

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — JFK
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

What to know about flights from Portsmouth

Discover essential information about flights departing from Portsmouth, including flight schedules, destinations, airlines operating at the Portsmouth airport, and any specific guidelines or requirements for travelers. Please note that the information is based on the most recent updates available. Data last updated February 13, 2026.

Cheapest airline

Ryanair
On average, Ryanair currently has the cheapest one-way flight from Portsmouth (avg. price of $152).
Search Deals

Find flights from Portsmouth

Cheapest flights from Portsmouth
Explore the most affordable flight options available from Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on February 13, 2026.

This Connections by easyJet deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/223:25 pm
SOU
-
ATH
1 stop16h 40m
easyJet
Wed 3/2511:55 am
ATH
-
SOU
1 stop27h 40m
easyJet
Deal found 2/12$177
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/278:10 pm
SOU
-
SPU
2 stops35h 35m
Multiple Airlines
Fri 4/310:15 pm
SPU
-
SOU
1 stop11h 25m
Multiple Airlines
Deal found 2/10$428
This British Airways deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:15 pm
SOU
-
ATH
2 stops30h 10m
British Airways
Sun 3/298:50 pm
ATH
-
SOU
2 stops25h 55m
British Airways
Deal found 2/12$549
This British Airways deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/212:00 pm
SOU
-
ATH
2 stops33h 10m
British Airways
Thu 3/57:50 pm
ATH
-
SOU
2 stops23h 40m
British Airways
Deal found 2/9$569
This British Airways deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2012:00 pm
SOU
-
ATH
2 stops23h 20m
British Airways
Sat 3/282:20 pm
ATH
-
SOU
2 stops31h 25m
British Airways
Deal found 2/12$571
This British Airways deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:15 pm
SOU
-
ATH
2 stops30h 10m
British Airways
Sat 3/284:55 pm
ATH
-
SOU
2 stops28h 50m
British Airways
Deal found 2/12$579
This British Airways deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:55 am
SOU
-
ATH
2 stops11h 00m
British Airways
Sat 3/78:05 pm
ATH
-
SOU
2 stops17h 45m
British Airways
Deal found 2/12$625
This Booking.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:05 pm
SOU
-
EWR
3 stops26h 30m
Multiple Airlines
Sun 3/295:20 pm
EWR
-
SOU
2 stops21h 10m
Multiple Airlines
Deal found 2/12$636
This KLM deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/275:35 pm
SOU
-
SPU
1 stop17h 10m
KLM
Fri 4/312:50 pm
SPU
-
SOU
1 stop5h 00m
KLM
Deal found 2/10$648
This Kiwi.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/98:10 pm
SOU
-
JFK
2 stops22h 05m
Multiple Airlines
Tue 3/2410:15 pm
JFK
-
SOU
1 stop9h 40m
Multiple Airlines
Deal found 2/10$687
This British Airways deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:50 pm
SOU
-
ATH
2 stops17h 40m
British Airways
Tue 3/247:55 pm
ATH
-
SOU
2 stops18h 10m
British Airways
Deal found 2/10$690
This British Airways deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:40 am
SOU
-
ATH
2 stops14h 40m
British Airways
Wed 3/253:00 pm
ATH
-
SOU
2 stops19h 10m
British Airways
Deal found 2/11$692

Find flights from Portsmouth within your budget

 
Find flights departing from Portsmouth that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on February 13, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

John F Kennedy Intl

Route

Depart

Return

Price

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 3/22

3:25 pm-10:05 am

1 stop16h 40m

Athens Eleftherios V.

Wed 3/25

11:55 am-1:35 pm

1 stop27h 40m

$177

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Fri 3/27

8:10 pm-8:45 am

2 stops35h 35m

Split

Fri 4/3

10:15 pm-8:40 am

1 stop11h 25m

$428

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sat 3/21

5:15 pm-1:25 am

2 stops30h 10m

Athens Eleftherios V.

Sun 3/29

8:50 pm-8:45 pm

2 stops25h 55m

$549

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 3/2

12:00 pm-11:10 pm

2 stops33h 10m

Athens Eleftherios V.

Thu 3/5

7:50 pm-5:30 pm

2 stops23h 40m

$569

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Fri 3/20

12:00 pm-1:20 pm

2 stops23h 20m

Athens Eleftherios V.

Sat 3/28

2:20 pm-7:45 pm

2 stops31h 25m

$571

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sat 3/21

5:15 pm-1:25 am

2 stops30h 10m

Athens Eleftherios V.

Sat 3/28

4:55 pm-7:45 pm

2 stops28h 50m

$579

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Fri 3/27

5:35 pm-11:45 am

1 stop17h 10m

Split

Fri 4/3

12:50 pm-4:50 pm

1 stop5h 00m

$648

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Tue 3/10

4:50 pm-12:30 pm

2 stops17h 40m

Athens Eleftherios V.

Tue 3/24

7:55 pm-12:05 pm

2 stops18h 10m

$690

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Wed 3/11

8:40 am-1:20 am

2 stops14h 40m

Athens Eleftherios V.

Wed 3/25

3:00 pm-8:10 am

2 stops19h 10m

$692

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Mon 3/23

9:30 am-4:40 pm

2 stops35h 10m

Newark

Sun 3/29

5:20 pm-7:30 pm

2 stops21h 10m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Portsmouth

Have a flexible travel schedule? Discover the best time to fly from Portsmouth with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Portsmouth

Get recent, data-driven insights about flights from Portsmouth including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portsmouth?

Currently, January is the cheapest month in which you can book a flight from Portsmouth (average of $350). Flying from Portsmouth in July will prove the most costly (average of $455). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from Portsmouth to John F Kennedy Intl. Price data was last updated on February 7, 2026.

Those who are seeking the cheapest fare on flights departing from Portsmouth would be wise to consider leaving during Sunday evenings when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Friday mornings when fares are usually the most expensive.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Related info for your journey

Access useful and relevant information related to your journey from Portsmouth. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated February 13, 2026.

  • What is the cheapest airport to fly out of Portsmouth?

    Istanbul airport offers the cheapest routes to Baltimore, from $23; whereas Cheongju airport is typically cheaper if you're flying to Jeju City, from $24. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

  • What is the cheapest month to fly from Portsmouth?

    January is currently the cheapest month to fly from Portsmouth. At this moment in time July is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

  • Where are the cheapest places to fly to from Portsmouth?

    Check out the cheapest flights from Portsmouth to embark to:
    Fly from Istanbul to Ankara from $23 round trip
    Fly from Cheongju to Jeju City from $24 round trip
    Fly from Fort Lauderdale to Baltimore from $25 round trip
    Fly from Lima to Cusco from $26 round trip
    Fly from Cali to Bogotá from $29 round trip

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.