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Cheap flights from Porto to London from £70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to London departing on 17/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Porto to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:00 - 08:45OPO  Porto-SOU Southampton Eastleigh
23h 45m2 stops Lisbon Humberto Delgado Barcelona-El Prat
Multiple Airlines Logo
19:20 - 15:50SOU  Southampton Eastleigh-OPO Porto
20h 30m2 stops Barcelona-El Prat Liverpool J. Lennon
£176Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
22:00 - 08:45OPO  Porto-SOU Southampton Eastleigh
10h 45m1 stop Barcelona-El Prat
Multiple Airlines Logo
20:40 - 11:20SOU  Southampton Eastleigh-OPO Porto
14h 40m2 stops Palma de Mallorca Son Sant Joan Geneva Geneve-Cointrin
£189Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
07:15 - 11:50OPO  Porto-SOU Southampton Eastleigh
4h 35m1 stop Belfast Intl
Multiple Airlines Logo
20:40 - 06:50SOU  Southampton Eastleigh-OPO Porto
34h 10m2 stops Palma de Mallorca Son Sant Joan Barcelona-El Prat
£191Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
18:40 - 12:05OPO  Porto-SOU Southampton Eastleigh
41h 25m2 stops Birmingham Belfast Intl
Multiple Airlines Logo
19:20 - 07:10SOU  Southampton Eastleigh-OPO Porto
11h 50m1 stop Barcelona-El Prat
£194Multiple Airlines
Fri, 2 Oct - Mon, 5 Oct
Multiple Airlines Logo
20:50 - 12:55OPO  Porto-SOU Southampton Eastleigh
16h 05m1 stop Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
19:20 - 07:10SOU  Southampton Eastleigh-OPO Porto
11h 50m1 stop Barcelona-El Prat
£196Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
07:35 - 08:45OPO  Porto-SOU Southampton Eastleigh
25h 10m3 stops Madrid Barajas Palma de Mallorca Son Sant Joan Barcelona-El Prat
Multiple Airlines Logo
12:25 - 07:30SOU  Southampton Eastleigh-OPO Porto
19h 05m2 stops Belfast Intl Faro
£197Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
17:20 - 08:45OPO  Porto-SOU Southampton Eastleigh
15h 25m1 stop Barcelona-El Prat
Multiple Airlines Logo
12:35 - 23:35SOU  Southampton Eastleigh-OPO Porto
11h 00m2 stops Belfast City Manchester
£198Multiple Airlines
Thu, 17 Sep - Thu, 24 Sep
Multiple Airlines Logo
09:50 - 08:40OPO  Porto-SOU Southampton Eastleigh
46h 50m2 stops Kastrup Copenhagen Dublin
Multiple Airlines Logo
19:25 - 22:35SOU  Southampton Eastleigh-OPO Porto
27h 10m1 stop Paris Orly
£202Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
Multiple Airlines Logo
22:40 - 12:55OPO  Porto-SOU Southampton Eastleigh
14h 15m2 stops Barcelona-El Prat Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
20:40 - 20:05SOU  Southampton Eastleigh-OPO Porto
23h 25m2 stops Palma de Mallorca Son Sant Joan London Stansted
£204Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
Multiple Airlines Logo
06:15 - 17:40OPO  Porto-SOU Southampton Eastleigh
11h 25m1 stop Faro
Multiple Airlines Logo
19:25 - 07:45SOU  Southampton Eastleigh-OPO Porto
12h 20m1 stop Paris Orly
£206Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep

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Customise your flight search to find flights from Porto to Southampton 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, momondo users made 279,928 searches. Data last updated 5 August 2026.
Use the filters below to find and compare flights from Porto to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Thu 1/10

09:00-08:45

2 stops23h 45m

Southampton Eastleigh

Mon 5/10

19:20-15:50

2 stops20h 30m

£176

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Thu 1/10

22:00-08:45

1 stop10h 45m

Southampton Eastleigh

Mon 5/10

20:40-11:20

2 stops14h 40m

£189

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Mon 7/9

07:15-11:50

1 stop4h 35m

Southampton Eastleigh

Mon 14/9

20:40-06:50

2 stops34h 10m

£191

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Fri 2/10

18:40-12:05

2 stops41h 25m

Southampton Eastleigh

Mon 5/10

19:20-07:10

1 stop11h 50m

£194

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Mon 7/9

20:50-12:55

1 stop16h 05m

Southampton Eastleigh

Mon 14/9

19:20-07:10

1 stop11h 50m

£196

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Thu 1/10

07:35-08:45

3 stops25h 10m

Southampton Eastleigh

Mon 5/10

12:25-07:30

2 stops19h 05m

£197

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Thu 17/9

17:20-08:45

1 stop15h 25m

Southampton Eastleigh

Thu 24/9

12:35-23:35

2 stops11h 00m

£198

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Sat 5/9

09:50-08:40

2 stops46h 50m

Southampton Eastleigh

Sat 12/9

19:25-22:35

1 stop27h 10m

£202

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Mon 7/9

22:40-12:55

2 stops14h 15m

Southampton Eastleigh

Mon 14/9

20:40-20:05

2 stops23h 25m

£204
Fastest return journey

PortoSouthampton

OPO Porto - SOU Southampton Eastleigh

OPOSOU

Porto

Sat 5/9

06:15-17:40

1 stop11h 25m

Southampton Eastleigh

Sat 12/9

19:25-07:45

1 stop12h 20m

£206

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Porto to Southampton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Porto to Southampton Eastleigh?

KLM is the most popular carrier operating from Porto to Southampton Eastleigh

Which airlines fly to Southampton?

easyJet, TAP AIR PORTUGAL and Ryanair are the top three most popular airlines that fly to Southampton from Porto according to our data. easyJet is the first choice among our users, with 32% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 4 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When to book flights from Porto to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Porto to Southampton (OPO to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Southampton

Fastest flight time

4h 35m

Direct flights

None
The fastest flight from Porto to Southampton takes 4h 35m
There are no direct flights from Porto to Southampton. There are no popular flight routes from Porto to Southampton.
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Frequently asked questions about flying from Porto to Southampton

  • How far is Porto to Southampton Eastleigh by plane?

    A flight from Porto to Southampton Eastleigh will travel around 756.3 mi. Flights usually cover this in 4h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Porto Airport to Southampton Eastleigh Airport?

    Prices for flights from Porto Airport to Southampton Eastleigh Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Porto Airport to Southampton Eastleigh Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Southampton?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Southampton from Porto.

Can I find flights from Porto to Southampton with flexible booking policies on momondo?

Flights from Porto to Southampton with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Porto to Southampton?

momondo helps you find the best flight between Porto and Southampton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Porto to Southampton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Porto to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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