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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 13 — Aug 201
Thu 8/13
Thu 8/20
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 14, 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

Thu 8/13

9:15 am-12:50 pm

1 stop25h 35m

Athens Eleftherios V.

Thu 8/20

5:25 pm-8:45 am

1 stop17h 20m

$355

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 8/9

9:15 am-4:50 pm

1 stop5h 35m

Athens Eleftherios V.

Thu 8/20

5:25 pm-8:45 am

1 stop17h 20m

$355

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Thu 8/13

3:25 pm-9:15 am

2 stops15h 50m

Athens Eleftherios V.

Thu 8/20

11:35 pm-8:25 am

1 stop10h 50m

$485

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sat 12/12

12:35 pm-1:25 am

2 stops34h 50m

Athens Eleftherios V.

Fri 12/25

7:50 pm-12:05 pm

2 stops18h 15m

$639

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 10/11

12:35 pm-12:45 pm

2 stops22h 10m

Athens Eleftherios V.

Tue 10/20

8:00 pm-12:05 pm

2 stops18h 05m

$687

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Fri 10/9

12:35 pm-12:45 pm

2 stops22h 10m

Athens Eleftherios V.

Mon 10/19

7:30 pm-12:05 pm

2 stops18h 35m

$687

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Wed 10/7

8:55 am-1:05 pm

2 stops26h 10m

Athens Eleftherios V.

Fri 10/16

8:50 pm-4:15 pm

2 stops21h 25m

$687

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 10/5

7:30 pm-7:05 pm

2 stops21h 35m

Athens Eleftherios V.

Wed 10/7

7:00 pm-12:05 pm

2 stops19h 05m

$738

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Sun 10/11

12:35 pm-2:10 am

2 stops11h 35m

Athens Eleftherios V.

Thu 10/15

8:00 pm-12:05 pm

2 stops18h 05m

$744
Quickest round-trip

SouthamptonBoston

SOU - BOS

SOUBOS

Southampton Eastleigh

Tue 8/25

9:15 am-2:55 pm

1 stop10h 40m

Boston Logan Intl

Tue 9/1

5:25 pm-8:05 am

1 stop9h 40m

$798

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

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 11, 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 14, 2026.

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

    Istanbul airport offers the cheapest routes to Atlanta, 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.

  • 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 Medellín to Cali from $25 round trip
    Fly from Medellín to Santa Marta from $26 round trip
    Fly from Santa Marta to Medellín from $27 round trip

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