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Cheap flights from Portsmouth to Lisbon from £178

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LIS
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Portsmouth to Lisbon

Keep the following information in mind while searching for Portsmouth to Lisbon flight deals. Data was last updated 11 July 2025.

Round-trip from

£178

Popular in

July

Cheapest in

January

Average price

£408
5/9-14/9
  • 5/9-14/9
  • 2 total stops
  • 35h 35m total
  • Portsmouth to Lisbon
Highest demand for flights based on searches. 9% potential increase in price (£22 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Portsmouth to Lisbon

Cheapest flights from Portsmouth to Lisbon
Explore the most affordable flight options available from Portsmouth to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Fri 5/919:25SOU - LIS
1 stop12h 50mMultiple Airlines
Sun 14/908:50LIS - SOU
1 stop22h 45mMultiple Airlines
Deal found 10/7£178
Fri 29/817:35SOU - LIS
1 stop5h 15mKLM
Tue 2/919:30LIS - SOU
1 stop13h 15mKLM
Deal found 9/7£230
Sun 16/1119:55SOU - LIS
2 stops16h 10mBritish Airways
Fri 21/1118:45LIS - SOU
2 stops18h 20mBritish Airways
Deal found 10/7£503

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth to Lisbon 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 11 July 2025.
Use the filters below to find and compare flights from Portsmouth to Lisbon that are best for you.

Fly from

Portsmouth

Fly to

Lisbon

Route

Depart

Return

Price

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Fri 5/9

19:25-08:15

1 stop12h 50m

Lisbon Humberto Delgado

Sun 14/9

08:50-07:35

1 stop22h 45m

£178

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Fri 29/8

17:35-22:50

1 stop5h 15m

Lisbon Humberto Delgado

Tue 2/9

19:30-08:45

1 stop13h 15m

£230

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Sun 16/11

19:55-12:05

2 stops16h 10m

Lisbon Humberto Delgado

Fri 21/11

18:45-13:05

2 stops18h 20m

£503

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Sun 7/9

08:55-23:05

2 stops38h 10m

£300

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Best time to book a flight from Portsmouth to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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 Lisbon

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Lisbon (average of £101). Flying from Portsmouth to Lisbon in August is currently the most expensive (average of £274). 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 LIS?

Find hourly flight availability from Portsmouth to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

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

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

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

Travellers seeking maximum savings on their Portsmouth to Lisbon flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Lisbon

Explore weekly flight availability from Portsmouth to Lisbon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 July 2025.

The most flights from P0R to LIS are scheduled on a Friday (71 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (32 on average).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated 11 July 2025.
Check out reviews from past customers who have flown with KLM and British Airways from Portsmouth to Lisbon to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Lisbon. 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 Lisbon from Portsmouth?

    If you book a flight to Lisbon from Portsmouth, you will be flying to Humberto Delgado, which is the city’s only airport. Lisbon Humberto Delgado (LIS) is located 4.2 mi from the center of Lisbon. There are 0 flights from Portsmouth to Humberto Delgado per day from 12 different airlines.

  • What are the most reliable airlines from Portsmouth to Lisbon?

    Before booking your flight to Lisbon from Portsmouth, check out the most reliable airlines to get you to your destination on time: Cathay Pacific (85%), LATAM Airlines (77%), Qatar Airways( 73%).

  • What are the cheapest flights from Portsmouth to Lisbon?

    Looking at all options, your cheapest flight can be booked for £91. While the most popular route (Southampton Eastleigh - Lisbon Humberto Delgado) can be booked for £204 on average our data indicates £1,069 when flying from Portsmouth to Lisbon.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Lisbon 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 Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Lisbon (average of £101). Flying from Portsmouth to Lisbon in August is currently the most expensive (average of £274). 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 Portsmouth?

Book flights to Portsmouth if you plan to visit one of these locations
Madeira
Setúbal
Fátima
Almada
Estoril
Sintra
Oeiras
Costa da Caparica
Beja
Nazaré
Peniche
Sesimbra

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Portsmouth to Lisbon

Discover the top 10 airlines that operate flights from Portsmouth to Lisbon. 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£29Average£140FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£38Average£134FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
easyJetCheapest£54Average£176FlexibilityNo cancel feeOn-time86%
Search easyJet flights
TAP AIR PORTUGALCheapest£70Average£192FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
VuelingCheapest£80Average£165FlexibilityNo cancel feeOn-time88%
Search Vueling flights
British AirwaysCheapest£97Average£237FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£135Average£252FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£139Average£248FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£143Average£262FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest£144Average£236FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Lisbon flexibly with Cheapflights today.

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