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Cheap flights from Cardiff to Bilbao from £81

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BIO
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Bilbao

Enter your travel dates to find the best prices.

Cheapest flights from Cardiff to Bilbao
Explore the most affordable flight options available from Cardiff to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Tue 3/316:45
CWL
-
BIO
1 stop16h 10m
Multiple Airlines
Fri 6/310:00
BIO
-
CWL
1 stop6h 40m
Multiple Airlines
Deal found 2/2£142
Wed 18/319:35
CWL
-
BIO
2 stops20h 15m
Multiple Airlines
Wed 25/315:00
BIO
-
CWL
1 stop5h 10m
Multiple Airlines
Deal found 1/2£145
Sat 13/609:25
CWL
-
BIO
2 stops12h 15m
Multiple Airlines
Sat 20/619:35
BIO
-
CWL
2 stops14h 35m
Multiple Airlines
Deal found 2/2£205
Sat 13/617:35
CWL
-
BIO
1 stop21h 55m
KLM
Sat 20/617:15
BIO
-
CWL
1 stop17h 00m
KLM
Deal found 2/2£260

Find flight deals from Cardiff to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Bilbao (BIO). 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 3 February 2026.

Round-trip from

£142

One-way from

£81
3/3-6/3
  • 3/3-6/3
  • 2 total stops
  • 22h 50m total
  • Cardiff to Bilbao
Search Deals
3/6
  • 3/6
  • 1 total stop
  • 12h 00m total
  • Cardiff to Bilbao
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to Bilbao 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 3 February 2026.
Use the filters below to find and compare flights from Cardiff to Bilbao that are best for you.

Fly from

Cardiff

Fly to

Bilbao

Route

Depart

Return

Price

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Wed 18/3

19:35-16:50

2 stops20h 15m

Bilbao

Wed 25/3

15:00-19:10

1 stop5h 10m

£145

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sat 13/6

09:25-22:40

2 stops12h 15m

Bilbao

Sat 20/6

19:35-09:10

2 stops14h 35m

£205

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sat 13/6

17:35-16:30

1 stop21h 55m

Bilbao

Sat 20/6

17:15-09:15

1 stop17h 00m

£260

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Tue 3/3

06:50-22:35

2 stops14h 45m

Bilbao

Fri 6/3

21:05-19:45

3 stops23h 40m

£273

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sat 4/7

17:35-07:35

2 stops13h 00m

Bilbao

Sat 11/7

06:45-17:05

1 stop11h 20m

£356

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Wed 3/6

21:10-10:10

1 stop12h 00m

£81

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Wed 3/6

21:10-14:20

2 stops16h 10m

£119

Flights are sorted by cheapest return flights first.

Deals found on 3/2

Best time to book a flight from Cardiff to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao 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.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Bilbao by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Cardiff to Bilbao

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

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How does Cheapflights help users find flights from Cardiff to Bilbao?

Deals for Cardiff to Bilbao 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 Cardiff to Bilbao?

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 Cardiff to Bilbao.

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

Need flexible booking options for your flight to Bilbao from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Cardiff to Bilbao 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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