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Cheap flights from Belfast Intl Airport to Bilbao from £125

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — BIO
14 Jan — 21 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to Bilbao

Enter your travel dates to find the best prices.

Best flights from Belfast Intl to Bilbao
Discover carefully curated flight deals from Belfast Intl to Bilbao that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 December 2025.

Wed 28/106:30BFS - BIO
1 stop8h 25mMultiple Airlines
Wed 4/211:30BIO - BFS
1 stop7h 25mMultiple Airlines
Deal found 14/12£125
Tue 27/120:55BFS - BIO
2 stops24h 10mMultiple Airlines
Tue 3/219:45BIO - BFS
2 stops24h 05mMultiple Airlines
Deal found 13/12£135
Mon 18/509:10BFS - BIO
1 stop7h 25mMultiple Airlines
Thu 28/516:30BIO - BFS
1 stop7h 40mMultiple Airlines
Deal found 13/12£297
Thu 21/510:15BFS - BIO
1 stop5h 20mMultiple Airlines
Tue 26/520:50BIO - BFS
2 stops13h 20mMultiple Airlines
Deal found 13/12£299
Tue 19/508:45BFS - BIO
1 stop4h 20mMultiple Airlines
Thu 28/507:45BIO - BFS
1 stop10h 20mMultiple Airlines
Deal found 13/12£324
Mon 18/507:00BFS - BIO
1 stop7h 50mMultiple Airlines
Fri 29/507:45BIO - BFS
1 stop8h 40mMultiple Airlines
Deal found 13/12£330
Tue 19/516:00BFS - BIO
1 stop5h 40mMultiple Airlines
Wed 27/516:30BIO - BFS
1 stop7h 40mMultiple Airlines
Deal found 13/12£345
Tue 19/516:00BFS - BIO
1 stop5h 40mMultiple Airlines
Tue 26/507:45BIO - BFS
1 stop7h 35mMultiple Airlines
Deal found 13/12£366
Wed 20/520:20BFS - BIO
1 stop12h 50mMultiple Airlines
Sun 24/507:15BIO - BFS
1 stop7h 05mMultiple Airlines
Deal found 13/12£425

Find flight deals from Belfast Intl to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) 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 15 December 2025.

Round-trip from

£125
28/1-4/2
  • 28/1-4/2
  • 2 total stops
  • 15h 50m total
  • Belfast to Bilbao
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl 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 15 December 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Bilbao that are best for you.

Fly from

Belfast Intl

Fly to

Bilbao

Route

Depart

Return

Price

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Wed 28/1

06:30-15:55

1 stop8h 25m

Bilbao

Wed 4/2

11:30-17:55

1 stop7h 25m

£125

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Tue 27/1

20:55-22:05

2 stops24h 10m

Bilbao

Tue 3/2

19:45-18:50

2 stops24h 05m

£135

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Mon 18/5

09:10-17:35

1 stop7h 25m

Bilbao

Thu 28/5

16:30-23:10

1 stop7h 40m

£297

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Thu 21/5

10:15-16:35

1 stop5h 20m

Bilbao

Tue 26/5

20:50-09:10

2 stops13h 20m

£299

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Tue 19/5

08:45-14:05

1 stop4h 20m

Bilbao

Thu 28/5

07:45-17:05

1 stop10h 20m

£324

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Mon 18/5

07:00-15:50

1 stop7h 50m

Bilbao

Fri 29/5

07:45-15:25

1 stop8h 40m

£330

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Tue 19/5

16:00-22:40

1 stop5h 40m

Bilbao

Wed 27/5

16:30-23:10

1 stop7h 40m

£345

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Tue 19/5

16:00-22:40

1 stop5h 40m

Bilbao

Tue 26/5

07:45-14:20

1 stop7h 35m

£366

BelfastBilbao

BFS - BIO

BFSBIO

Belfast Intl

Wed 20/5

20:20-10:10

1 stop12h 50m

Bilbao

Sun 24/5

07:15-13:20

1 stop7h 05m

£425

Flights are sorted by cheapest return flights first.

Deals found on 14/12

Best time to book a flight from Belfast Intl to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Belfast Intl 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 Belfast Intl to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Bilbao from Belfast Intl?

    Most people fly into Bilbao (BIO) if they book a flight to Bilbao from Belfast Intl. On average, Bilbao has 0 inbound flights from Belfast Intl per day from 0 airlines. Bilbao is conveniently located just 3.0 mi from Bilbao’s city center.

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

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

  • How can I find direct flights from Belfast Intl to Bilbao?

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

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

    Yes. Cheapflights offers flight deals from Belfast Intl 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

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Alternative routes for Belfast Intl to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Belfast City to Bilbao flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast Intl to Bilbao?

Deals for Belfast Intl 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 Belfast Intl to Bilbao?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast Intl to Bilbao for you. Better yet — we are completely free to use.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast Intl to Bilbao, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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