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Cheap flights from Portsmouth to Porto from £137

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Portsmouth to Porto

Keep the following information in mind while searching for Portsmouth to Porto flight deals. Data was last updated 18 September 2025.

Round-trip from

£137

Popular in

September

Cheapest in

March

Average price

£1,169
18/10-25/10
  • 18/10-25/10
  • 2 total stops
  • 23h 05m total
  • Portsmouth to Porto
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (£126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 27% potential price decrease (£63 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Portsmouth to Porto

Cheapest flights from Portsmouth to Porto
Explore the most affordable flight options available from Portsmouth to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Sat 18/1018:55SOU - OPO
1 stop12h 20mMultiple Airlines
Sat 25/1021:55OPO - SOU
1 stop10h 45mMultiple Airlines
Deal found 16/9£137
Mon 17/1119:55SOU - OPO
1 stop12h 15mMultiple Airlines
Sun 23/1115:35OPO - SOU
2 stops27h 45mMultiple Airlines
Deal found 17/9£156
Thu 16/1013:45SOU - OPO
1 stop18h 10measyJet
Sun 19/1011:25OPO - SOU
1 stop20h 15measyJet
Deal found 17/9£199
Sun 16/1118:25SOU - OPO
1 stop14h 50mMultiple Airlines
Sun 23/1115:35OPO - SOU
2 stops27h 45mMultiple Airlines
Deal found 17/9£205
Thu 16/1015:50SOU - OPO
2 stops25h 55mMultiple Airlines
Sun 19/1006:30OPO - SOU
2 stops25h 10mMultiple Airlines
Deal found 17/9£236

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from Portsmouth to Porto that are best for you.

Fly from

Portsmouth

Fly to

Porto

Route

Depart

Return

Price

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Sat 18/10

18:55-07:15

1 stop12h 20m

Porto

Sat 25/10

21:55-08:40

1 stop10h 45m

£137

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Mon 17/11

19:55-08:10

1 stop12h 15m

Porto

Sun 23/11

15:35-19:20

2 stops27h 45m

£156

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Thu 16/10

13:45-07:55

1 stop18h 10m

Porto

Sun 19/10

11:25-07:40

1 stop20h 15m

£199

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Sun 16/11

18:25-09:15

1 stop14h 50m

Porto

Sun 23/11

15:35-19:20

2 stops27h 45m

£205

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Thu 16/10

15:50-07:30

1 stop15h 40m

Porto

Sun 19/10

06:30-07:40

2 stops25h 10m

£241

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Mon 17/11

18:05-10:30

1 stop16h 25m

Porto

Mon 24/11

16:10-08:10

1 stop16h 00m

£245

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Sun 16/11

18:05-10:30

1 stop16h 25m

Porto

Mon 24/11

16:10-08:10

1 stop16h 00m

£256

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Best time to book a flight from Portsmouth to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Portsmouth with our price prediction graph.
Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Porto

What is the cheapest month to book a flight from Portsmouth to Porto?

Currently, February is the cheapest month in which you can book a flight from Portsmouth to Porto (average of £66). Flying from Portsmouth to Porto in August is currently the most expensive (average of £258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from P0R to OPO?

Find hourly flight availability from Portsmouth to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Porto as you normally would.

What is the cheapest day to fly from Portsmouth to Porto?

Use this chart to determine the cheapest time to fly return from Portsmouth to Porto. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Porto flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated 18 September 2025.
Read through reviews of airlines operating flights from Portsmouth to Porto, such as KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,386 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,386 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Portsmouth?

    If you book a flight to Porto from Portsmouth, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Portsmouth to Porto per day from 10 different airlines.

  • How long is the flight from Portsmouth to Porto?

    Airlines like easyJet fly from Portsmouth to Porto in about 18h 10m. The time it takes to get you to your destination can typically vary by up to . The distance from Portsmouth to Porto is about 755 mi.

  • Can I find deals for flights from Portsmouth to Porto that include hotel bookings?

    Yes. In addition to deals on Portsmouth to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Porto.

  • Can I find deals for business class flights from Portsmouth to Porto?

    Yes. Cheapflights offers flight deals from Portsmouth to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portsmouth to Porto?

    Currently, February is the cheapest month in which you can book a flight from Portsmouth to Porto (average of £66). Flying from Portsmouth to Porto in August is currently the most expensive (average of £258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Guimarães
Chaves
Viseu
Vila Nova de Gaia
Aveiro

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Alternative routes for Portsmouth to Porto

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Top 10 airlines flying from Portsmouth to Porto

Discover the top 10 airlines that operate flights from Portsmouth to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£47Average£145FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£54Average£174FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£74Average£229FlexibilityNo cancel feeOn-time70%
Search British Airways flights
VuelingCheapest£93Average£196FlexibilityNo cancel feeOn-time88%
Search Vueling flights
TAP AIR PORTUGALCheapest£101Average£188FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£129Average£269FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£136Average£242FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£137Average£173FlexibilityNo cancel feeOn-time79%
Search SWISS flights
LufthansaCheapest£138Average£275FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£170Average£284FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portsmouth to Porto?

Cheapflights makes it easy to find Portsmouth to Porto flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Porto?

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Porto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Portsmouth to Porto with no change fees?

Yes! Cheapflights helps users easily find flights from Portsmouth to Porto with no change fees.

Can Cheapflights notify me if prices for flights from Portsmouth to Porto become cheaper?

Of course! You can now track prices for flights from Portsmouth to Porto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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