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Cheap flights from Cardiff to Porto from £44

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — OPO
27 Apr — 4 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Porto

Enter your travel dates to find the best prices.

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 28 March 2026.

Sun 10/517:40
CWL
-
OPO
1 stop15h 35m
Ryanair
Wed 13/518:35
OPO
-
CWL
1 stop14h 00m
Ryanair
Deal found 26/3£80
Sun 10/517:40
CWL
-
OPO
1 stop15h 35m
Ryanair
Tue 19/506:05
OPO
-
CWL
2 stops16h 45m
Ryanair
Deal found 24/3£109
Sat 9/507:30
CWL
-
OPO
2 stops13h 40m
Multiple Airlines
Sat 16/521:00
OPO
-
CWL
1 stop11h 55m
Multiple Airlines
Deal found 25/3£144
Sun 10/521:45
CWL
-
OPO
2 stops16h 40m
Multiple Airlines
Wed 13/522:00
OPO
-
CWL
3 stops24h 25m
Multiple Airlines
Deal found 26/3£169
Wed 29/423:50
CWL
-
OPO
2 stops13h 50m
Multiple Airlines
Fri 1/521:50
OPO
-
CWL
1 stop14h 00m
Multiple Airlines
Deal found 24/3£175

Find 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 28 March 2026.

Round-trip from

£80

One-way from

£44

Popular in

January

Cheapest in

November

Average price

£235
Ryanair
  • Ryanair
  • 10/5-13/5
  • 2 total stops
  • 29h 35m total
  • Cardiff to Porto
Search Deals
Ryanair
  • Ryanair
  • 12/5
  • 1 total stop
  • 14h 50m total
  • Cardiff to Porto
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 28 March 2026.
Use the filters below to find and compare flights from Cardiff to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sun 10/5

17:40-09:15

1 stop15h 35m

Porto

Wed 13/5

18:35-08:35

1 stop14h 00m

£80

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sun 10/5

17:40-09:15

1 stop15h 35m

Porto

Tue 19/5

06:05-22:50

2 stops16h 45m

£109

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sat 9/5

07:30-21:10

2 stops13h 40m

Porto

Sat 16/5

21:00-08:55

1 stop11h 55m

£144

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Sun 10/5

21:45-14:25

2 stops16h 40m

Porto

Tue 19/5

22:30-23:05

3 stops24h 35m

£182
Fastest return journey

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Wed 29/4

17:15-22:15

1 stop5h 00m

Porto

Fri 1/5

21:50-11:50

1 stop14h 00m

£243

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Wed 8/4

23:30-00:40

2 stops25h 10m

Porto

Sat 11/4

21:00-08:55

1 stop11h 55m

£243

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Wed 8/4

17:15-10:40

1 stop17h 25m

Porto

Fri 10/4

20:15-09:15

1 stop13h 00m

£365
Cheapest one-way

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Tue 12/5

21:45-12:35

1 stop14h 50m

£44

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Tue 12/5

16:15-08:00

2 stops15h 45m

£59

CardiffPorto

CWL - OPO

CWLOPO

Cardiff Wales

Tue 23/6

21:45-12:35

1 stop14h 50m

£67

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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, November is the cheapest month in which you can book a flight from Cardiff to Porto (average of £15). Flying from Cardiff to Porto in August is currently the most expensive (average of £64). 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.

How much does it cost for a return flight from Cardiff to Porto?

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 28 March 2026.
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
1,477 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.8

Entertainment

7.1

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
1,477 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Crew

8.4

Comfort

7.6

Food

7.3

Overall

7.8

Entertainment

7.1

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

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.

  • How long is the flight from Cardiff to Porto?

    Airlines like Ryanair fly from Cardiff to Porto in about 15h 35m. The time it takes to get you to your destination can typically vary by up to . Cardiff and Porto are separated by a distance of 745 mi.

  • 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 £216. Users have found that KLM is 31% 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, November is the cheapest month in which you can book a flight from Cardiff to Porto (average of £15). Flying from Cardiff to Porto in August is currently the most expensive (average of £64). 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
Santa Maria da Feira
Viseu
Guimarães
Coimbra
Chaves
Vila Nova de Gaia
Aveiro

Browse thousands of different options on Cheapflights for your next trip

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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 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£216Average£413FlexibilityNo 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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