What are the cheapest airlines to fly from Portsmouth to Lisbon one-way?

One-way options have recently been found by users for as low as £140 on Aer Lingus. Other airlines that offer cheap prices include KLM from £140 and easyJet from £150 one-way.

In terms of precipitation, rainfall in Lisbon ranges from 6.0 - 122.0 inches per month. December is typically the wettest month, when rainfall can reach 122.0 mm. July is typically the driest time to visit Lisbon when rainfall is around 6.0 mm.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What are the cheapest flights from Portsmouth to Lisbon?

Looking at all options, your cheapest flight can be booked for £74. While the most popular route (Southampton Eastleigh - Lisbon Humberto Delgado) can be booked for £176 on average, our data indicates £637 when flying from Portsmouth to Lisbon.

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 (74%), Qatar Airways (67%), British Airways( 67%).

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.

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.

£139+ Flights from Portsmouth to Lisbon

Cheap flight deals from Portsmouth to Lisbon

Round-trip from	£176
One-way from	£139
Popular in	October
Cheapest in	January
Average price	£386

easyJet
5/12-12/12
3 total stops
22h 50m total
Portsmouth to Lisbon

Search Deals

30/12
1 total stop
27h 45m total
Portsmouth to Lisbon

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£35 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Find flight deals from Portsmouth to Lisbon

Enter your travel dates to find the best prices.

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 22 October 2025.

Fri 5/1208:10SOU - LIS

2 stops15h 30mMultiple Airlines

Fri 12/1212:00LIS - SOU

1 stop7h 20mMultiple Airlines

Deal found 21/10£176

Thu 4/1209:30SOU - LIS

1 stop10h 35mMultiple Airlines

Thu 11/1217:30LIS - SOU

1 stop15h 15mMultiple Airlines

Deal found 20/10£191

Fri 31/1019:50SOU - LIS

1 stop17h 25mMultiple Airlines

Mon 3/1121:05LIS - SOU

2 stops17h 45mMultiple Airlines

Deal found 20/10£247

Tue 28/1014:35SOU - LIS

1 stop5h 40mMultiple Airlines

Thu 30/1019:10LIS - SOU

2 stops17h 35mMultiple Airlines

Deal found 20/10£330

Best flights from Portsmouth to Lisbon
Discover carefully curated flight deals from Portsmouth to Lisbon that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 October 2025.

Fri 5/1208:10SOU - LIS

2 stops15h 30mMultiple Airlines

Fri 12/1212:00LIS - SOU

1 stop7h 20mMultiple Airlines

Deal found 21/10£176

Sat 7/317:30SOU - LIS

1 stop17h 05mKLM

Wed 11/305:00LIS - SOU

1 stop12h 00mKLM

Deal found 21/10£244

Thu 4/1209:30SOU - LIS

1 stop10h 35mMultiple Airlines

Thu 11/1217:30LIS - SOU

1 stop15h 15mMultiple Airlines

Deal found 20/10£191

Sun 29/314:50SOU - LIS

2 stops43h 15mBritish Airways

Tue 31/313:35LIS - SOU

2 stops19h 50mBritish Airways

Deal found 21/10£395

Sat 7/317:15SOU - LIS

2 stops21h 35mBritish Airways

Wed 11/307:05LIS - SOU

2 stops10h 15mBritish Airways

Deal found 20/10£397

Last-minute flights from Portsmouth to Lisbon
Discover last-minute flight deals from Portsmouth to Lisbon. Data last updated 22 October 2025 and is based on user searches.

Sat 25/1018:05SOU - LIS

1 stop21h 30mKLM

Sat 1/1105:00LIS - SOU

1 stop12h 00mKLM

Deal found 20/10£512

Tue 28/1014:35SOU - LIS

1 stop5h 40mMultiple Airlines

Thu 30/1019:10LIS - SOU

2 stops17h 35mMultiple Airlines

Deal found 20/10£330

Tue 28/1008:40SOU - LIS

1 stop14h 30mKLM

Thu 30/1005:00LIS - SOU

1 stop12h 25mKLM

Deal found 20/10£386

Fri 31/1019:50SOU - LIS

1 stop17h 25mMultiple Airlines

Mon 3/1121:05LIS - SOU

2 stops17h 45mMultiple Airlines

Deal found 20/10£247

One-way flights from Portsmouth to Lisbon
Search for one-way flight options from Portsmouth to Lisbon. Find affordable one-way fares based on user searches. Data last updated 22 October 2025.

Tue 30/1216:05SOU - LIS

1 stop27h 45mMultiple Airlines

Deal found 20/10£139

Wed 5/1120:10SOU - LIS

1 stop14h 00mAer Lingus

Deal found 21/10£140

Tue 30/1209:20SOU - LIS

2 stops25h 05measyJet

Deal found 20/10£150

Wed 5/1108:55SOU - LIS

2 stops12h 50mMultiple Airlines

Deal found 21/10£164

Sat 22/1109:30SOU - LIS

2 stops9h 35mMultiple Airlines

Deal found 21/10£249

Fri 21/1113:30SOU - LIS

2 stops9h 55mMultiple Airlines

Deal found 21/10£250

Tue 17/208:40SOU - LIS

2 stops13h 15mBritish Airways

Deal found 22/10£277

Fri 13/220:30SOU - LIS

2 stops21h 25mBritish Airways

Deal found 22/10£291

Wed 5/1114:25SOU - LIS

3 stops31h 25mBritish Airways

Deal found 21/10£334

Tue 28/1014:35SOU - LIS

3 stops19h 15mBritish Airways

Deal found 21/10£346

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Fri 5/12

08:10-23:40

2 stops15h 30m

Lisbon Humberto Delgado

Fri 12/12

12:00-19:20

1 stop7h 20m

£176

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Thu 4/12

09:30-20:05

1 stop10h 35m

Lisbon Humberto Delgado

Thu 11/12

17:30-08:45

1 stop15h 15m

£191

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Sat 7/3

17:30-10:35

1 stop17h 05m

Lisbon Humberto Delgado

Wed 11/3

05:00-17:00

1 stop12h 00m

£244

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Sun 29/3

14:50-10:05

2 stops43h 15m

Lisbon Humberto Delgado

Tue 31/3

13:35-09:25

2 stops19h 50m

£395

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Sat 7/3

17:15-14:50

2 stops21h 35m

Lisbon Humberto Delgado

Wed 11/3

07:05-17:20

2 stops10h 15m

£397

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Tue 30/12

16:05-19:50

1 stop27h 45m

£139

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Wed 5/11

20:10-10:10

1 stop14h 00m

£140

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Fri 21/11

17:30-10:35

1 stop17h 05m

£140

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Sat 22/11

17:30-10:35

1 stop17h 05m

£140

SouthamptonLisbon

SOU - LIS

SOULIS

Southampton Eastleigh

Tue 30/12

09:20-10:25

2 stops25h 05m

£150

Flights are sorted by cheapest return flights first.

Deals found on 20/10

Showing 1-10 of 16 results

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 £40). Flying from Portsmouth to Lisbon in August is currently the most expensive (average of £124). 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?

It’s typically best to fly out from Portsmouth to Lisbon at midday. Doing so could potentially save you 21% on the flight price compared to flying in the morning, which is usually more expensive.

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. Sunday at midday 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

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

KLM

7.7

Good

1,404 reviews

KLM

7.7

Good

1,404 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 cheapest airlines to fly from Portsmouth to Lisbon one-way?
One-way options have recently been found by users for as low as £140 on Aer Lingus. Other airlines that offer cheap prices include KLM from £140 and easyJet from £150 one-way.
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 (74%), Qatar Airways (67%), British Airways( 67%).
What are the cheapest flights from Portsmouth to Lisbon?
Looking at all options, your cheapest flight can be booked for £74. While the most popular route (Southampton Eastleigh - Lisbon Humberto Delgado) can be booked for £176 on average, our data indicates £637 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 £40). Flying from Portsmouth to Lisbon in August is currently the most expensive (average of £124). 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

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Other flights to Lisbon

Top 10 airlines flying from Portsmouth to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£23	Average£150	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
easyJet	Cheapest£55	Average£180	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Vueling	Cheapest£81	Average£166	FlexibilityNo cancel fee	On-time88%	Search Vueling flights
easyJet	Cheapest£82	Average£173	FlexibilityNo cancel fee	On-time70%	Search easyJet flights
TAP AIR PORTUGAL	Cheapest£93	Average£194	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
British Airways	Cheapest£100	Average£219	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£118	Average£253	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
KLM	Cheapest£137	Average£266	FlexibilityNo cancel fee	On-time75%	Search KLM flights
SWISS	Cheapest£138	Average£270	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Lufthansa	Cheapest£152	Average£231	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

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

Deals for Portsmouth to Lisbon flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to Lisbon.

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.

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

Of course! You can now track prices for flights from Portsmouth to Lisbon 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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Cheap flights from Portsmouth to Lisbon from £139

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 30/12. Fares are subject to change and may not be available on all flights or dates of travel.

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 22 October 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portsmouth to Lisbon

Cheapest flights from Portsmouth to LisbonExplore 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 22 October 2025.

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 22 October 2025.

Cheapflights Fare Finder

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

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.

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?

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 22 October 2025.

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.

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.

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?

What are the cheapest airlines to fly from Portsmouth to Lisbon one-way?

What are the most reliable airlines from Portsmouth to Lisbon?

What are the cheapest flights from Portsmouth to Lisbon?

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

How can I find direct flights from Portsmouth to Lisbon?

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

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

Travelling to a place near Lisbon?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portsmouth to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Lisbon

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

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

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

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

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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 22 October 2025.