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Portsmouth

$55+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — JFK
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
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 July 24, 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

Sun 8/9

9:15 am-12:50 pm

1 stop25h 35m

Athens Eleftherios V.

Thu 8/13

1:35 pm-8:45 am

1 stop21h 10m

$384

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 8/9

8:00 pm-12:15 pm

1 stop14h 15m

Athens Eleftherios V.

Thu 8/13

10:45 pm-7:20 am

2 stops34h 35m

$440

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Fri 11/20

8:55 am-1:25 am

2 stops14h 30m

Athens Eleftherios V.

Fri 11/27

5:05 pm-12:05 pm

2 stops21h 00m

$642

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Fri 9/11

9:20 am-10:25 pm

1 stop18h 05m

New York John F Kennedy Intl

Sat 9/26

9:05 pm-7:30 pm

1 stop17h 25m

$652

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 11/22

7:40 pm-3:55 pm

2 stops18h 15m

Athens Eleftherios V.

Tue 11/24

7:35 am-7:00 pm

2 stops13h 25m

$664

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Tue 11/24

7:40 pm-7:30 pm

2 stops21h 50m

Athens Eleftherios V.

Thu 11/26

7:30 am-7:00 pm

2 stops13h 30m

$664

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 11/23

7:40 pm-3:50 pm

2 stops18h 10m

Athens Eleftherios V.

Wed 11/25

7:50 am-7:00 pm

2 stops13h 10m

$664

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 11/23

12:35 pm-1:20 am

2 stops10h 45m

Athens Eleftherios V.

Thu 11/26

7:30 am-7:00 pm

2 stops13h 30m

$672

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 11/23

12:35 pm-1:20 am

2 stops10h 45m

Athens Eleftherios V.

Sat 11/28

8:05 pm-12:05 pm

2 stops18h 00m

$672

SouthamptonBoston

SOU - BOS

SOUBOS

Southampton Eastleigh

Mon 9/7

8:00 pm-4:10 pm

2 stops25h 10m

Boston Logan Intl

Mon 9/14

5:40 pm-4:50 pm

2 stops18h 10m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

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 July 18, 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.

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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 July 24, 2026.

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

    Valencia airport offers the cheapest routes to New York, from $18; whereas Istanbul airport is typically cheaper if you're flying to Boston, 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 Valencia to Ibiza from $18 round trip
    Fly from Istanbul to Ankara from $23 round trip
    Fly from Cheongju to Jeju City from $24 round trip
    Fly from Medellín to Cartagena from $26 round trip
    Fly from Medellín to Santa Marta from $26 round trip

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