HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portsmouth

$63+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — JFK
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Cheapest airline

Ryanair
On average, Ryanair currently has the cheapest one-way flight from Portsmouth (avg. price of $157).
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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Sun 12/143:25 pmSOU - ATH
1 stop16h 40mMultiple Airlines
Sun 12/219:55 pmATH - SOU
1 stop23h 25mMultiple Airlines
Deal found 10/30$250
This KLM deal was found by Cheapflights users on 10/30. 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 4/35:35 pmSOU - ATH
1 stop17h 10mKLM
Sun 4/126:00 amATH - SOU
1 stop13h 00mKLM
Deal found 10/30$452
This British Airways deal was found by Cheapflights users on 10/30. 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 2/612:15 pmSOU - ATH
2 stops25h 40mBritish Airways
Mon 2/97:45 amATH - SOU
2 stops11h 35mBritish Airways
Deal found 10/30$521
This British Airways deal was found by Cheapflights users on 10/30. 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 2/612:15 pmSOU - ATH
2 stops29h 00mBritish Airways
Sun 2/82:50 pmATH - SOU
2 stops28h 30mBritish Airways
Deal found 10/30$525
This British Airways deal was found by Cheapflights users on 10/30. 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.
Thu 2/53:05 pmSOU - ATH
2 stops25h 45mBritish Airways
Sun 2/84:50 pmATH - SOU
2 stops26h 30mBritish Airways
Deal found 10/30$530
This British Airways deal was found by Cheapflights users on 10/30. 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 3/306:50 amSOU - ATH
2 stops17h 25mBritish Airways
Tue 3/316:55 amATH - SOU
2 stops12h 45mBritish Airways
Deal found 10/30$543
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:40 amSOU - MIA
1 stop35h 10mDelta
Sun 11/1612:36 pmMIA - SOU
2 stops14h 34mDelta
Deal found 10/29$636
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:30 amSOU - MIA
2 stops18h 43mDelta
Sun 11/1611:27 amMIA - SOU
2 stops15h 43mDelta
Deal found 10/29$642
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/79:25 amSOU - MIA
2 stops18h 55mDelta
Wed 3/118:05 amMIA - SOU
2 stops20h 15mDelta
Deal found 10/29$650
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:05 pmSOU - JFK
2 stops28h 40mMultiple Airlines
Sun 12/145:35 pmJFK - SOU
2 stops17h 00mMultiple Airlines
Deal found 10/30$652
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:50 amSOU - LAX
2 stops35h 30mDelta
Mon 3/304:50 pmLAX - SOU
1 stop16h 10mDelta
Deal found 10/29$655
This Virgin Atlantic deal was found by Cheapflights users on 10/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:50 amSOU - LAX
2 stops34h 10mVirgin Atlantic
Mon 3/305:00 pmLAX - SOU
2 stops31h 50mVirgin Atlantic
Deal found 10/28$660

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 October 30, 2025. 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 12/14

3:25 pm-10:05 am

1 stop16h 40m

Athens Eleftherios V.

Sun 12/21

9:55 pm-7:20 pm

1 stop23h 25m

$250

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Fri 4/3

5:35 pm-12:45 pm

1 stop17h 10m

Athens Eleftherios V.

Sun 4/12

6:00 am-5:00 pm

1 stop13h 00m

$452

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Fri 2/6

12:15 pm-3:55 pm

2 stops25h 40m

Athens Eleftherios V.

Mon 2/9

7:45 am-5:20 pm

2 stops11h 35m

$521

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Fri 2/6

12:15 pm-7:15 pm

2 stops29h 00m

Athens Eleftherios V.

Sun 2/8

2:50 pm-5:20 pm

2 stops28h 30m

$525

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Thu 2/5

3:05 pm-6:50 pm

2 stops25h 45m

Athens Eleftherios V.

Sun 2/8

4:50 pm-5:20 pm

2 stops26h 30m

$530

SouthamptonAthens

SOU - ATH

SOUATH

Southampton Eastleigh

Mon 3/30

6:50 am-2:15 am

2 stops17h 25m

Athens Eleftherios V.

Tue 3/31

6:55 am-5:40 pm

2 stops12h 45m

$543

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 11/10

8:40 am-2:50 pm

1 stop35h 10m

Miami

Sun 11/16

12:36 pm-8:10 am

2 stops14h 34m

$636

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sun 11/9

9:30 am-11:13 pm

2 stops18h 43m

Miami

Sun 11/16

11:27 am-8:10 am

2 stops15h 43m

$642

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Mon 11/10

6:05 pm-6:51 pm

2 stops29h 46m

Miami

Mon 11/17

12:00 pm-8:10 am

2 stops15h 10m

$642

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sun 11/9

9:30 am-11:13 pm

2 stops18h 43m

Miami

Mon 11/17

12:00 pm-8:10 am

2 stops15h 10m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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, August is the cheapest month in which you can book a flight from Portsmouth (average of $130). 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 October 27, 2024.

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 Sunday afternoons 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 October 30, 2025.

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

    Los Angeles airport offers the cheapest routes to Dubai, from $12; whereas Bangkok Suvarnabhumi airport is typically cheaper if you're flying to Shanghai, from $23. 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?

    August 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 Los Angeles to Tokyo from $12 round trip
    Fly from Istanbul to Ankara from $23 round trip
    Fly from Bangkok to Phuket City from $23 round trip
    Fly from Cheongju to Jeju City from $24 round trip
    Fly from Stockholm to Luleå from $28 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.