Find flights
When to book
FAQs

Cheap flights from Cardiff to Bilbao from £142

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BIO
9 Jul — 16 Jul1
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 9 June 2026.

Mon 20/722:10
CWL
-
BIO
2 stops21h 50m
Multiple Airlines
Wed 22/713:15
BIO
-
CWL
2 stops20h 20m
Multiple Airlines
Deal found 6/6£142
Mon 20/717:15
CWL
-
BIO
2 stops27h 45m
Air France
Wed 22/710:30
BIO
-
CWL
2 stops31h 15m
Air France
Deal found 9/6£308
Tue 7/717:15
CWL
-
BIO
1 stop17h 00m
KLM
Tue 14/717:15
BIO
-
CWL
1 stop17h 00m
KLM
Deal found 6/6£645
Sun 5/709:50
CWL
-
BIO
1 stop11h 55m
KLM
Tue 14/717:15
BIO
-
CWL
1 stop17h 00m
KLM
Deal found 6/6£671
Sun 5/709:50
CWL
-
BIO
2 stops11h 10m
Multiple Airlines
Tue 14/717:15
BIO
-
CWL
1 stop17h 00m
Multiple Airlines
Deal found 6/6£723
Wed 8/709:45
CWL
-
BIO
1 stop5h 45m
KLM
Thu 16/712:00
BIO
-
CWL
1 stop5h 45m
KLM
Deal found 6/6£772

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 9 June 2026.

Round-trip from

£142
20/7-22/7
  • 20/7-22/7
  • 4 total stops
  • 42h 10m 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 9 June 2026.
Use the filters below to find and compare flights from Cardiff to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Mon 20/7

13:35-21:50

1 stop7h 15m

Bilbao

Wed 22/7

19:15-08:35

1 stop14h 20m

£220

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Tue 7/7

17:15-11:15

1 stop17h 00m

Bilbao

Tue 14/7

17:15-09:15

1 stop17h 00m

£645

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sun 5/7

09:50-22:45

1 stop11h 55m

Bilbao

Tue 14/7

17:15-09:15

1 stop17h 00m

£671

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Tue 7/7

17:15-11:15

1 stop17h 00m

Bilbao

Mon 13/7

17:15-09:15

1 stop17h 00m

£775

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sun 5/7

09:50-22:45

1 stop11h 55m

Bilbao

Sun 12/7

17:15-09:15

1 stop17h 00m

£878

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Tue 7/7

17:15-09:50

2 stops15h 35m

Bilbao

Sun 12/7

06:45-16:45

1 stop11h 00m

£929

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Mon 6/7

17:15-11:15

1 stop17h 00m

Bilbao

Sun 12/7

08:20-16:45

2 stops9h 25m

£1,042
Cheapest one-way

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sat 4/7

06:45-17:20

1 stop9h 35m

£143

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Sun 5/7

09:50-22:45

1 stop11h 55m

£183
Fastest single journey

CardiffBilbao

CWL - BIO

CWLBIO

Cardiff Wales

Fri 3/7

17:15-22:45

1 stop4h 30m

£206

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Sorted by cheapest first

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.

  • How long is the flight from Cardiff to Bilbao?

    Airlines like KLM fly from Cardiff to Bilbao in about 17h. The time it takes to get you to your destination can typically vary by up to . There are 559 mi between Cardiff and Bilbao.

  • 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.

See more FAQs

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.

Alternative routes for Cardiff to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Manchester to Bilbao flights
Bristol to Bilbao flights
Manchester to San Sebastian flights
Bristol to San Sebastian 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 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.