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Cheap flights from Portsmouth to Porto from £99

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
2 Jun — 9 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Porto

Enter your travel dates to find the best prices.

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 3 May 2026.

Mon 22/617:55
SOU
-
OPO
1 stop13h 35m
Multiple Airlines
Wed 24/622:15
OPO
-
SOU
1 stop10h 30m
Multiple Airlines
Deal found 2/5£119
Tue 9/618:10
SOU
-
OPO
1 stop15h 00m
Multiple Airlines
Fri 12/606:15
OPO
-
SOU
2 stops25h 05m
Multiple Airlines
Deal found 28/4£148
Mon 15/619:20
SOU
-
OPO
1 stop11h 50m
Multiple Airlines
Mon 22/622:25
OPO
-
SOU
1 stop10h 15m
Multiple Airlines
Deal found 1/5£154

Find flight deals from Portsmouth to Porto

Keep the following information in mind while searching for Portsmouth to Porto flight deals. Data was last updated 3 May 2026.

Round-trip from

£119

One-way from

£99

Popular in

December

Cheapest in

January

Average price

£158
22/6-24/6
  • 22/6-24/6
  • 2 total stops
  • 24h 05m total
  • Portsmouth to Porto
Search Deals
15/5
  • 15/5
  • 1 total stop
  • 10h 55m total
  • Portsmouth to Porto
Search Deals
High demand for flights, 10% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 3 May 2026.
Use the filters below to find and compare flights from Portsmouth to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Mon 22/6

20:40-19:35

2 stops22h 55m

Porto

Wed 24/6

06:30-08:35

2 stops26h 05m

£147
Fastest return journey

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Mon 15/6

20:40-19:35

2 stops22h 55m

Porto

Mon 22/6

22:25-08:40

1 stop10h 15m

£148

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Tue 9/6

18:10-09:10

1 stop15h 00m

Porto

Fri 12/6

06:15-07:20

2 stops25h 05m

£148

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Mon 6/7

17:55-07:30

1 stop13h 35m

Porto

Thu 9/7

19:15-19:40

2 stops24h 25m

£161

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Fri 12/6

08:55-19:50

1 stop10h 55m

Porto

Tue 16/6

14:15-15:00

1 stop24h 45m

£205
Cheapest one-way

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Thu 14/5

15:25-07:25

1 stop16h 00m

£110

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Wed 24/6

06:45-20:55

1 stop14h 10m

£124

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Sat 23/5

20:00-21:20

1 stop25h 20m

£137

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Sat 23/5

20:05-17:20

1 stop21h 15m

£172
Fastest single journey

SouthamptonPorto

SOU - OPO

SOUOPO

Southampton Eastleigh

Thu 14/5

09:05-22:15

1 stop13h 10m

£197

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 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 3 May 2026.

It’s optimal to fly from Portsmouth to Porto at midday. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the evening.

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 25 April 2026.

Travellers seeking maximum savings on their Portsmouth to Porto flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings 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 3 May 2026.
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
1,509 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,509 reviews
KLM
7.8
Good
1,509 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.8

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 9 different airlines.

  • 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.

See more FAQs

Travelling to a place near Porto?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Portsmouth to Porto

Discover the top 9 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 3 May 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£46Average£161FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£57Average£153FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
VuelingCheapest£82Average£159FlexibilityNo cancel feeOn-time88%
Search Vueling flights
British AirwaysCheapest£84Average£296FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£104Average£189FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapest£107Average£246FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest£141Average£297FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£143Average£361FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£191Average£309FlexibilityNo 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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