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Cheap flights from Portsmouth to Lisbon from £98

LHR — LIS
5 Oct — 12 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Lisbon

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Lisbon

Mon 19/1020:40 -
2 stops19h 45m
Wed 21/1021:35 -
1 stop11h 00m
Deal found 3/9£126
Sun 11/1010:00 -
2 stops37h 40m
Thu 15/1021:15 -
1 stop11h 30m
Deal found 4/9£160
Sat 7/1108:20 -
1 stop12h 10m
Sun 8/1118:35 -
1 stop24h 15m
Deal found 1/9£162
Sat 3/1020:00 -
1 stop16h 00m
Sat 10/1009:50 -
1 stop9h 40m
Deal found 2/9£167
Thu 15/1015:25 -
1 stop6h 20m
Thu 22/1019:10 -
1 stop13h 35m
Deal found 31/8£182

Find flight deals from Portsmouth to Lisbon

Round-trip from

£126

One-way from

£98

Popular in

August

Cheapest in

January

Average price

£170
19/10-21/10
  • 19/10-21/10
  • 3 total stops
  • 30h 45m total
  • Portsmouth to Lisbon
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15/10-31/12
  • 15/10-31/12
  • 1 total stop
  • 6h 20m total
  • Portsmouth to Lisbon
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£20 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Portsmouth to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Thu 15/10

15:25-10:45

2 stops19h 20m

Lisbon Humberto Delgado

Wed 31/12

00:00-00:00

Nonstop0h 00m

£118

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Mon 19/10

20:40-16:25

2 stops19h 45m

Lisbon Humberto Delgado

Wed 21/10

15:25-08:35

2 stops17h 10m

£137

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Sun 11/10

20:00-10:45

1 stop14h 45m

Lisbon Humberto Delgado

Thu 15/10

19:10-08:45

1 stop13h 35m

£163

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Sat 3/10

20:00-12:00

1 stop16h 00m

Lisbon Humberto Delgado

Sat 10/10

09:50-19:30

1 stop9h 40m

£167

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Thu 15/10

15:25-21:45

1 stop6h 20m

Lisbon Humberto Delgado

Thu 22/10

19:10-08:45

1 stop13h 35m

£182

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Sun 4/10

12:35-10:05

2 stops21h 30m

Lisbon Humberto Delgado

Wed 31/12

00:00-00:00

Nonstop0h 00m

£314

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Mon 5/10

19:30-23:10

2 stops27h 40m

Lisbon Humberto Delgado

Wed 31/12

00:00-00:00

Nonstop0h 00m

£314

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Thu 5/11

09:20-16:05

2 stops30h 45m

Lisbon Humberto Delgado

Wed 31/12

00:00-00:00

Nonstop0h 00m

£364

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Fri 11/12

12:35-21:55

2 stops9h 20m

Lisbon Humberto Delgado

Wed 16/12

07:05-19:00

2 stops11h 55m

£481

SouthamptonLisbon

SOU Southampton Eastleigh - LIS Lisbon Humberto Delgado

SOULIS

Southampton Eastleigh

Wed 9/12

08:55-17:45

2 stops8h 50m

Lisbon Humberto Delgado

Wed 16/12

07:05-19:00

2 stops11h 55m

£481

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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

Cheapflights Insights

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

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

It’s typically best to fly out from Portsmouth to Lisbon in the evening. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Portsmouth to Lisbon

The most flights from P0R to LIS are scheduled on a Thursday (78 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

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

Travellers seeking maximum savings on their Portsmouth to Lisbon flight should consider departing on Tuesday evenings 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 Lisbon

Check out reviews from past customers who have flown with KLM 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.
KLM
7.8
Good
1,569 reviews
Check prices

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,569 reviews
KLM
7.8
Good
1,569 reviews
Check prices

Crew

8.4

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

  • 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 11 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 (79%), British Airways (72%), Qatar Airways( 70%).

  • What are the cheapest flights from Portsmouth to Lisbon?

    Looking at all options, your cheapest flight can be booked for £79. While the most popular route (Southampton Eastleigh - Lisbon Humberto Delgado) can be booked for £160 on average, our data indicates £900 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.

See more FAQs

Travelling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Nazaré
Evora
Madeira
Setúbal
Oeiras
Almada
Óbidos
Tomar
Estoril
Figueira da Foz
Sintra
Costa da Caparica

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from Portsmouth to Lisbon

AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£23Average£121FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£56Average£186FlexibilityNo cancel feeOn-time86%
Search easyJet flights
easyJetCheapest£102Average£222FlexibilityNo cancel feeOn-time70%
Search easyJet flights
TAP AIR PORTUGALCheapest£117Average£193FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£125Average£226FlexibilityNo cancel feeOn-time70%
Search British Airways flights
VuelingCheapest£125Average£163FlexibilityNo cancel feeOn-time88%
Search Vueling flights
LufthansaCheapest£133Average£251FlexibilityNo cancel feeOn-time76%
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SWISSCheapest£149Average£240FlexibilityNo cancel feeOn-time79%
Search SWISS flights
IberiaCheapest£163Average£203FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest£169Average£256FlexibilityNo cancel feeOn-time75%
Search KLM flights

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