If they’re not the cheapest option, try searching by month to compare costs throughout the week.
When you fly 901 km from Cardiff to Bilbao, you can choose from zero airlines. Flights are most expensive during high season, and you can expect accommodation prices to be higher then too. Last-minute deals do crop up, but it's best to book in advance to avoid disappointment.
To sort cheap flights to Bilbao, it's best to start searching for flights by month, as this will show you when prices are at their lowest.
Once you’ve chosen your flight, go through and fill out your details to complete your booking. If you haven’t yet sorted your hotel or car hire, take a look at our competitive rates – then you can book your flights and accommodation in one go.
