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Portsmouth

$58+ 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
Jul 23 — Jul 301
Thu 7/23
Thu 7/30
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 June 23, 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 7/13

8:40 pm-9:35 pm

1 stop22h 55m

Athens Eleftherios V.

Wed 7/22

4:10 pm-8:35 am

1 stop18h 25m

$304

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Thu 7/30

9:15 am-1:15 am

1 stop14h 00m

Athens Eleftherios V.

Thu 8/6

6:00 am-5:35 pm

1 stop13h 35m

$314

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Tue 7/21

9:15 am-10:55 pm

1 stop12h 40m

Split

Sun 7/26

7:25 pm-8:45 am

1 stop14h 20m

$326
Quickest round-trip

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Tue 7/14

2:15 pm-9:50 pm

1 stop6h 35m

Split

Sun 7/19

1:15 pm-8:45 pm

1 stop8h 30m

$457

SouthamptonSplit

SOU - SPU

SOUSPU

Southampton Eastleigh

Tue 7/21

2:15 pm-9:50 pm

1 stop6h 35m

Split

Sun 7/26

1:15 pm-11:50 am

2 stops23h 35m

$457

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 10/11

9:20 am-6:25 pm

1 stop17h 05m

Los Angeles Los Angeles

Tue 10/20

8:10 pm-7:30 pm

1 stop15h 20m

$640

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 10/21

9:20 am-6:25 pm

1 stop17h 05m

Los Angeles Los Angeles

Sat 11/21

8:15 pm-8:40 am

1 stop28h 25m

$650

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 11/9

9:20 am-6:30 pm

1 stop17h 10m

Los Angeles Los Angeles

Sat 11/14

8:15 pm-8:40 am

1 stop28h 25m

$653

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 9/17

8:00 pm-6:25 pm

1 stop30h 25m

Los Angeles Los Angeles

Thu 10/8

8:10 pm-7:30 pm

1 stop15h 20m

$659

SouthamptonWashington, D.C.

SOU - IAD

SOUIAD

Southampton Eastleigh

Thu 10/29

9:20 am-8:30 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Thu 11/5

5:05 pm-8:40 am

1 stop10h 35m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

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 June 20, 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 June 23, 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 Medellín to Santa Marta from $24 round trip
    Fly from Cheongju to Jeju City from $24 round trip
    Fly from Santa Marta to Medellín from $24 round trip
    Fly from Medellín to Cartagena from $27 round trip

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