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Portsmouth

$57+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — JFK
Jun 27 — Jul 41
Sat 6/27
Sat 7/4
1 adult, Economy
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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 May 28, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 6/8

5:20 pm-1:15 am

1 stop5h 55m

Athens Eleftherios V.

Mon 6/15

5:25 pm-8:35 am

1 stop17h 10m

$348

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Sun 7/12

9:15 am-11:10 pm

1 stop12h 55m

Split

Sun 7/19

7:25 pm-8:45 am

1 stop14h 20m

$436

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Sun 7/12

8:25 am-9:25 pm

2 stops12h 00m

Split

Sun 7/19

10:35 am-8:40 am

2 stops23h 05m

$447

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 9/14

6:50 am-2:15 am

2 stops17h 25m

Athens Eleftherios V.

Tue 9/22

6:30 pm-12:55 pm

2 stops20h 25m

$615

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 8/10

12:20 pm-7:05 pm

2 stops28h 45m

Athens Eleftherios V.

Thu 8/20

3:15 pm-9:25 am

2 stops20h 10m

$624

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 9/7

6:50 am-2:15 am

2 stops17h 25m

Athens Eleftherios V.

Mon 9/14

8:50 pm-5:45 pm

2 stops22h 55m

$626

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Wed 9/9

6:50 am-2:10 am

2 stops17h 20m

Athens Eleftherios V.

Mon 9/14

8:50 pm-8:45 pm

2 stops25h 55m

$626

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Thu 9/10

6:50 am-2:25 am

2 stops17h 35m

Athens Eleftherios V.

Mon 9/14

8:50 pm-8:45 pm

2 stops25h 55m

$626

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 11/23

7:55 pm-6:55 pm

2 stops21h 00m

Athens Eleftherios V.

Mon 12/7

2:25 pm-8:25 am

2 stops20h 00m

$649

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 6/15

6:25 pm-2:10 am

2 stops29h 45m

Athens Eleftherios V.

Wed 6/17

2:05 pm-9:25 am

2 stops21h 20m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

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 May 23, 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 Wednesday evenings when fares are usually the most expensive.

Browse thousands of different options on Cheapflights for your next trip

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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 May 28, 2026.

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

    Medellín Jose Maria Cordova Intl airport offers the cheapest routes to Panama City, from $23; whereas Istanbul airport is typically cheaper if you're flying to Atlanta, from $23. It's best to make sure you are flexible on dates to find the cheapest possible flight options for your journey.

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

    Check out the cheapest flights from Portsmouth to embark to:
    Fly from Medellín to Santa Marta from $23 round trip
    Fly from Istanbul to Ankara from $23 round trip
    Fly from Santa Marta to Medellín from $23 round trip
    Fly from Cheongju to Jeju City from $24 round trip
    Fly from Medellín to Cartagena from $26 round trip

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