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Cheap flights from Cardiff to Porto from £120

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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — OPO
23 Aug — 30 Aug1
1 adult

Cheap flight deals from Cardiff to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 August 2025.

Round-trip from

£171

One-way from

£120

Popular in

September

Cheapest in

January

Average price

£245
1/10-8/10
  • 1/10-8/10
  • 4 total stops
  • 48h 05m total
  • Cardiff to Porto
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26/10
  • 26/10
  • 2 total stops
  • 21h 55m total
  • Cardiff to Porto
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£55 potential increase over avg. return price).
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Cheapest flight prices on average. 12% potential price decrease (£24 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Cardiff to Porto

Cheapest flights from Cardiff to Porto
Explore the most affordable flight options available from Cardiff to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Wed 1/1020:30CWL - OPO
2 stops23h 35mMultiple Airlines
Wed 8/1006:55OPO - CWL
2 stops24h 30mMultiple Airlines
Deal found 17/8£171
Sat 4/1009:00CWL - OPO
2 stops23h 50mMultiple Airlines
Sat 11/1006:55OPO - CWL
2 stops27h 40mMultiple Airlines
Deal found 16/8£181
Fri 26/920:55CWL - OPO
1 stop12h 40mRyanair
Sun 28/917:50OPO - CWL
2 stops18h 55mRyanair
Deal found 16/8£213
Fri 26/920:55CWL - OPO
2 stops22h 25mMultiple Airlines
Sun 28/906:50OPO - CWL
1 stop10h 05mMultiple Airlines
Deal found 16/8£368

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff 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 18 August 2025.
Use the filters below to find and compare flights from Cardiff to Porto that are best for you.

Fly from

Cardiff

Fly to

Porto

Route

Depart

Return

Price

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Wed 1/10

20:30-20:05

2 stops23h 35m

Porto

Wed 8/10

06:55-07:25

2 stops24h 30m

£171

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sat 4/10

09:00-08:50

2 stops23h 50m

Porto

Sat 11/10

06:55-10:35

2 stops27h 40m

£181

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Fri 26/9

20:55-09:35

1 stop12h 40m

Porto

Sun 28/9

17:50-12:45

2 stops18h 55m

£213

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Fri 26/9

20:55-19:20

2 stops22h 25m

Porto

Sun 28/9

06:50-16:55

1 stop10h 05m

£368

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sun 26/10

10:15-08:10

2 stops21h 55m

£120

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sun 26/10

18:25-13:35

1 stop19h 10m

£126

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sat 23/8

19:20-22:00

2 stops26h 40m

£208

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sat 23/8

17:35-10:40

1 stop17h 05m

£231

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Best time to book a flight from Cardiff to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Cardiff 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 Cardiff to Porto

What is the cheapest month to book a flight from Cardiff to Porto?

Currently, February is the cheapest month in which you can book a flight from Cardiff to Porto (average of £66). Flying from Cardiff to Porto in August is currently the most expensive (average of £258). 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.

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 18 August 2025.
Read reviews from past customers who have flown with KLM from Cardiff to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,385 reviews
Check prices

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

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.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews
Check prices

Crew

8.4

Comfort

7.7

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

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 Cardiff to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Cardiff to Porto round-trip?

    Flying on KLM is currently your cheapest option to Porto, with prices starting at £198. Users have found that KLM is 32% cheaper than the other options available to this destination.

  • Can I find deals for flights from Cardiff to Porto that include hotel bookings?

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

  • How can I find direct flights from Cardiff to Porto?

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

  • Can I find deals for business class flights from Cardiff to Porto?

    Yes. Cheapflights offers flight deals from Cardiff 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.

  • What is the cheapest month to book a flight from Cardiff to Porto?

    Currently, February is the cheapest month in which you can book a flight from Cardiff to Porto (average of £66). Flying from Cardiff to Porto in August is currently the most expensive (average of £258). 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 Porto?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Cardiff to Porto

Discover the top airline that operate flights from Cardiff 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 18 August 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£198Average£292FlexibilityNo cancel feeOn-time75%
Search KLM 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 Cardiff to Porto?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cardiff to Porto. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Porto?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Porto from Cardiff.

Can Cheapflights find flights from Cardiff to Porto with no change fees?

Certainly. Search results for flights to Porto from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cardiff to Porto become cheaper?

Yes! Start tracking prices for Cardiff to Porto flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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