Title: Cheap flights from Castro Urdiales - Expedia.com ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap flights from Castro Urdiales - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only [Castro Urdiales Travel Guide](https://expedia.com/Castro-Urdiales.dx6046359)[Hotels in Castro Urdiales](https://expedia.com/Castro-Urdiales-Hotels.d6046359.Travel-Guide-Hotels)[Things to do in Castro Urdiales](https://expedia.com/Things-To-Do-In-Castro-Urdiales.d6046359.Travel-Guide-Activities)[Car Rentals in Castro Urdiales](https://expedia.com/Car-Rentals-In-Castro-Urdiales.d6046359.Car-Rental-Guide)[Castro Urdiales Vacation Packages](https://expedia.com/Castro-Urdiales.d6046359.Destination-Travel-Guides) ## Popular airlines from Castro Urdiales - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_IB.svg) Iberia - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AF.svg) Air France - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UX.svg) Air Europa - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheapest flights from Castro Urdiales These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Ryanair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/FR.gif) Tue, Apr 21 - Thu, Apr 23 SDR Santander STN London $43 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:STN,departure:4/21/2026TANYT&leg2=from:STN,to:SDR,departure:4/23/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:42.93&airProductToken=AQo-CjwIxqQBEgQyNjEzGPKIASDybCiZ9ooDMIf3igM4oEBAAFgBagVCYXNpY3IFQkFTSUN6CgjSlgESBDI2MTMKMgowCMakARIEMjYxMhjybCDyiAEo9YuLAzDtjIsDOKBAQABYAWoFQmFzaWNyBUJBU0lDEgoIARABGAEqAkZSGAEiBAgBEAEoAigDKAQwDQ) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Thu, May 14 - Thu, May 14 BIO Bilbao BCN Barcelona $44 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:BCN,departure:5/14/2026TANYT&leg2=from:BCN,to:BIO,departure:5/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:43.03&airProductToken=AQo4CjYI1rIBEgQxNDIzGIFyIMFoKKz3jAMw8veMAzjEjAFAAFgBaghGTFlMSUdIVHIIRENGTEFTSEIKNwo1CNayARIEMTQyNBjBaCCBciig-4wDMOv7jAM4xJgBQABYAWoIRkxZTElHSFRyB0RDT1dMUEISCggLEAEYCCoCVlkYASIECAEQASgCMAM) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Tue, Mar 3 - Tue, Mar 10 BIO Bilbao LGW London $44 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:LGW,departure:3/3/2026TANYT&leg2=from:LGW,to:BIO,departure:3/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:43.68&airProductToken=AQo1CjMI1rIBEgQ2MzA1GIFyIMuxASiVzoYDMIjPhgM4xKoBQABYAWoIRkxZTElHSFRyBERDRkIKNQozCNayARIENjMwNBjLsQEggXIokJ6HAzCIn4cDOMSqAUAAWAFqCEZMWUxJR0hUcgREQ0ZCEgoICxABGAgqAlZZGAEiBAgBEAEoAjAD) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Tue, Mar 3 - Tue, Mar 10 BIO Bilbao LHR London $62 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:LHR,departure:3/3/2026TANYT&leg2=from:LHR,to:BIO,departure:3/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:61.02&airProductToken=AQo1CjMI1rIBEgQ2MzEwGIFyIOuJASiC0YYDMPXRhgM4xKoBQABYAWoIRkxZTElHSFRyBERDRkIKNQozCNayARIENjMxMRjriQEggXIogqGHAzD_oYcDOMSqAUAAWAFqCEZMWUxJR0hUcgREQ0ZCEgoICxABGAgqAlZZGAEiBAgBEAEoAjAD) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Sat, Feb 28 - Sat, Mar 7 SDR Santander MAD Madrid $62 Roundtrip found 6 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:MAD,departure:2/28/2026TANYT&leg2=from:MAD,to:SDR,departure:3/7/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:61.70&airProductToken=AQoyCjAIyYQBEgQxMDY4GPKIASCMGCjzsoYDMLmzhgM4QUAAWAFqBUJBU0lDcgZBRE5OQjUKMgowCMmEARIEMTA1ORiMGCDyiAEokPuGAzDW-4YDOEFAAFgBagVCQVNJQ3IGQUROTkI1EgoIARABGAEqAklCGAEiBAgBEAEoAigDKAQwDQ) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Tue, Apr 21 - Sat, Apr 25 BIO Bilbao MAD Madrid $73 Roundtrip found 6 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:MAD,departure:4/21/2026TANYT&leg2=from:MAD,to:BIO,departure:4/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:73.00&airProductToken=AQowCi4IyYQBEgM0NDAYgXIgjBgot_uKAzD9-4oDOEFAAFgBagVCQVNJQ3IGQUROTkI1CjAKLgjJhAESAzQyORiMGCCBcijloYsDMKaiiwM4QUAAWAFqBUJBU0lDcgZBRE5OQjUSCggBEAEYASoCSUIYASIECAEQASgCKAMoBDAN) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Tue, May 19 - Thu, May 21 BIO Bilbao ORY Paris $78 Roundtrip found 20 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:ORY,departure:5/19/2026TANYT&leg2=from:ORY,to:BIO,departure:5/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:77.52&airProductToken=AQo5CjcI1rIBEgQxNDY0GIFyIK7EASj7tY0DMN-2jQM4xIwBQABYAWoIRkxZTElHSFRyCERDRkxBU0hCCjUKMwjWsgESBDE0NjMYrsQBIIFyKPjFjQMw3MaNAzjEqgFAAFgBaghGTFlMSUdIVHIERENGQhIMCAsQARgIKgJWWTIAGAEiBAgBEAEoAjAD) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Wed, Jun 3 - Thu, Jun 4 SDR Santander BCN Barcelona $81 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:BCN,departure:6/3/2026TANYT&leg2=from:BCN,to:SDR,departure:6/4/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:80.27&airProductToken=AQo3CjUI1rIBEgQxNTk3GPKIASDBaCju244DML7cjgM4UEAAWAFqCEZMWUxJR0hUcghQT1dWWUNMQgo3CjUI1rIBEgQxNTkwGMFoIPKIASjq444DMMTkjgM4SkAAWAFqCEZMWUxJR0hUcghKT1dWWUNMQhIKCAsQARgIKgJWWRgBIgQIARABKAIwAw) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Sat, Sep 26 - Mon, Sep 28 BIO Bilbao LPA Gran Canaria $88 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:LPA,departure:9/26/2026TANYT&leg2=from:LPA,to:BIO,departure:9/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:87.83&airProductToken=AQo2CjQI1rIBEgQzMjcwGIFyIOsDKOjsmAMwq-6YAzhQQABYAWoIRkxZTElHSFRyCFBPV1ZZQ0xCCjYKNAjWsgESBDMyNzEY6wMggXIozIGZAzCFg5kDOFFAAFgBaghGTFlMSUdIVHIIUU9XVllDTEISCggLEAEYCCoCVlkYASIECAEQASgCMAM) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Sat, Jun 6 - Thu, Jun 11 BIO Bilbao ALC Alicante $105 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:ALC,departure:6/6/2026TANYT&leg2=from:ALC,to:BIO,departure:6/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:104.23&airProductToken=AQo2CjQI1rIBEgQxNDUyGIFyIOASKID-jgMw0P6OAzhKQABYAWoIRkxZTElHSFRyCEpPV1ZZQ0xCEgoICxABGAgqAlZZGAEiBAgBEAEoAjAD) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Tue, Apr 7 - Tue, Apr 14 SDR Santander ALC Alicante $114 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:ALC,departure:4/7/2026TANYT&leg2=from:ALC,to:SDR,departure:4/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:113.80&airProductToken=AQpiCi8IyYQBEgM0OTQY8ogBIIwYKIzciQMw0tyJAzhBQABYAWoFQkFTSUNyBkFETk5CNQovCMmEARIEMTAwORiMGCDgEijF4okDMJDjiQM4QUABWAFqBUJBU0lDcgZBRE5OQjUKYwovCMmEARIEMTAxNhjgEiCMGCjSrIoDMJ2tigM4QUAAWAFqBUJBU0lDcgZBRE5OQjUKMAjJhAESBDEwNTkYjBgg8ogBKOGxigMworKKAzhBQAFYAWoFQkFTSUNyBkFETk5CNRIKCAEQARgBKgJJQhgBIgQIARABKAIoAygEMA0) ![Volotea](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/V7.gif) Wed, May 20 - Wed, Jun 3 BIO Bilbao FCO Rome $125 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:FCO,departure:5/20/2026TANYT&leg2=from:FCO,to:BIO,departure:6/3/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:124.10&airProductToken=AQohCh8I1m4SBDM1MDgYgXIgxXAo-7qNAzCCvI0DOERAAFgBCiEKHwjWbhIEMzUwORjFcCCBcij02Y4DMIrbjgM4QkAAWAESCggBEAEYASoCVjcYASIECAEQASgEMAE) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Tue, Aug 11 - Wed, Aug 19 BIO Bilbao EAS San Sebastián $140 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:EAS,departure:8/11/2026TANYT&leg2=from:EAS,to:BIO,departure:8/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:139.10&airProductToken=AQphCi4IyYQBEgM0NDAYgXIgjBgot-eUAzD955QDOEFAAFgBagVCQVNJQ3IGQUROTkI1Ci8IyYQBEgM0NDMYjBgghJABKIrslAMw0OyUAzhBQAFYAWoFQkFTSUNyBkFETk5CNQphCi8IyYQBEgM0NTAYhJABIIwYKLLBlQMw-MGVAzhBQABYAWoFQkFTSUNyBkFETk5CNQouCMmEARIDNDI5GIwYIIFyKIXGlQMwxsaVAzhBQAFYAWoFQkFTSUNyBkFETk5CNBIKCAEQARgBKgJJQhgBIgQIARABKAIoAygEMA0) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Fri, Mar 13 - Sun, Mar 15 SDR Santander LPA Gran Canaria $143 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:LPA,departure:3/13/2026TANYT&leg2=from:LPA,to:SDR,departure:3/15/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:142.70&airProductToken=AQpuCjAIyYQBEgQxMDY4GPKIASCMGCiTxYcDMNnFhwM4QUAAWAFqBUJBU0lDcgZBRE5OQjUKOgjJhAESBDE2MDEYjBgg6wMooMmHAzDPyocDOEFAAVgBagVCQVNJQ3IGQU9OTkIzegkIyWQSBDE2MDEKbQo6CMmEARIEMTYyNhjrAyCMGCj724cDMKXdhwM4QUAAWAFqBUJBU0lDcgZBRE5RQjJ6CQjJZBIEMTYyNgovCMmEARIDNDg5GIwYIPKIASiS4IcDMNjghwM4QUABWAFqBUJBU0lDcgZBRE5OQjUSCggBEAEYASoCSUIYASIECAEQASgCKAMoBDAN) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Fri, Mar 13 - Tue, Mar 17 BIO Bilbao CDG Paris $163 Roundtrip found 8 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:CDG,departure:3/13/2026TANYT&leg2=from:CDG,to:BIO,departure:3/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:162.20&airProductToken=AQpmCjEIzJABEgQxODI1GIFyIIwVKLvAhwMwwsGHAzhLQABYAWoFTElHSFRyCEtFVExHVFU0CjEIzJABEgQyMjM0GIwVIOIwKJ7DhwMw_cOHAzhLQAFYAWoFTElHSFRyCEtFVExHVFU0CmYKMQjMkAESBDIyMzkY4jAgjBUo7OqHAzDB64cDOEtAAFgBagVMSUdIVHIIS0VUTEdUVTQKMQjMkAESBDE4MjQYjBUggXIoh-yHAzCO7YcDOEtAAVgBagVMSUdIVHIIS0VUTEdUVTQSCggCEAEYAioCTEgYASIECAEQASgCKAMoBDAL) ![Vueling Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VY.GIF) Tue, Jun 16 - Tue, Jul 21 SDR Santander ORY Paris $171 Roundtrip found 5 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:ORY,departure:6/16/2026TANYT&leg2=from:ORY,to:SDR,departure:7/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:170.35&airProductToken=AQo4CjYI1rIBEgQxNDY5GPKIASCuxAEo2e6PAzC9748DOEpAAFgBaghGTFlMSUdIVHIISk9XVllDTEIKOAo2CNayARIEMTQ2OBiuxAEg8ogBKLL3kgMwlviSAzhYQABYAWoIRkxZTElHSFRyCFhPV1ZZQ0xCEgoICxABGAgqAlZZGAEiBAgBEAEoAjAD) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Mon, Jun 22 - Mon, Jun 29 SDR Santander CDG Paris $191 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:CDG,departure:6/22/2026TANYT&leg2=from:CDG,to:SDR,departure:6/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:190.60&airProductToken=AQplCjEIyYQBEgM0OTQY8ogBIIwYKIyzkAMw0rOQAzhBQABYAWoFQkFTSUNyCEFETk5BTkI0CjAIyYQBEgM1OTEYjBgg4jAogbWQAzD-tZADOEFAAVgBagVCQVNJQ3IIQUROTkFOQjQKZQowCMmEARIDNTkyGOIwIIwYKLD8kAMwsv2QAzhBQABYAWoFQkFTSUNyCEFETk5BTkI0CjEIyYQBEgM0OTMYjBgg8ogBKP6AkQMwxIGRAzhBQAFYAWoFQkFTSUNyCEFETk5BTkI0EgoIARABGAEqAklCGAEiBAgBEAEoAigDKAQwDQ) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Wed, Mar 11 - Sat, Mar 14 SDR Santander FCO Rome $196 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SDR,to:FCO,departure:3/11/2026TANYT&leg2=from:FCO,to:SDR,departure:3/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:196.00&airProductToken=AQplCjEIyYQBEgM0OTAY8ogBIIwYKOCohwMwpqmHAzhBQABYAWoFQkFTSUNyCEFETk5BMEI0CjAIyYQBEgM2NTcYjBggxXAo4q6HAzDzr4cDOEFAAVgBagVCQVNJQ3IIQUROTkEwQjQKZgowCMmEARIDNjYwGMVwIIwYKMnMhwMw5M2HAzhBQABYAWoFQkFTSUNyCEFETk5BMEI0CjIIyYQBEgQxMDU5GIwYIPKIASiQ1YcDMNbVhwM4QUABWAFqBUJBU0lDcghBRE5OQTBCNBIKCAEQARgBKgJJQhgBIgQIARABKAIoAygEMA0) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Fri, Mar 13 - Sat, Mar 14 BIO Bilbao AMS Amsterdam $204 Roundtrip found 4 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:AMS,departure:3/13/2026TANYT&leg2=from:AMS,to:BIO,departure:3/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:203.20&airProductToken=AQpnCjEIzJABEgQxODMxGIFyIIwVKMG-hwMwyL-HAzhLQABYAWoFTElHSFRyCEtFVExHVFU0CjIIzJABEgQyMzA2GIwVIICTASimwocDMIXDhwM4S0ABWAFqBUxJR0hUcghLRVRMR1RVNApmCjEIzJABEgM5OTMYgJMBIKUEKJnNhwMw382HAzhLQABYAWoFTElHSFRyCEtFVExHVFU0CjEIzJABEgQxMTQ2GKUEIIFyKJrQhwMwnNGHAzhLQAFYAWoFTElHSFRyCEtFVExHVFU0EgwIAhABGAIqAkxIMgAYASIECAEQASgCKAMoBDAL) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Wed, Mar 11 - Wed, Mar 25 BIO Bilbao LCY London $225 Roundtrip found 12 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BIO,to:LCY,departure:3/11/2026TANYT&leg2=from:LCY,to:BIO,departure:3/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:225.00&airProductToken=AQp8CjwIzLABEgQ4MjI3GIFyILk8KPmohwMw4qmHAzhLQABYAWoFTElHSFRyCEtFVExHVFU0egkI15YBEgMyMjcKPAjMsAESAzQ2NBi5PCDLwAEonayHAzCBrYcDOEtAAVgBagVMSUdIVHIIS0VUTEdUVTR6CQiymAESAzQ2NAp8CjwIzLABEgM0NjcYy8ABILk8KL7LiAMwrMyIAzhLQABYAWoFTElHSFRyCEtFVExHVFU0egkIspgBEgM0NjcKPAjMsAESBDgyMjYYuTwggXIorNaIAzCa14gDOEtAAVgBagVMSUdIVHIIS0VUTEdUVTR6CQjXlgESAzIyNhIKCAIQARgCKgJMWBgBIgQIARABKAIoAygEMAs) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## How to Find Cheap Flights from Castro Urdiales #### How much is a flight from Castro Urdiales? This week, flights from Castro Urdiales are available between $43 – $225\. #### How to find cheap flights from Castro Urdiales? Expedia makes it easy to compare cheap flights from Castro Urdiales to many destinations. Check out excellent deals on domestic and international flights from Castro Urdiales. Once you select an offer, use our filters and sort by “Price (Lowest)” to see some of the cheapest and suitable options. #### How can I get the best deal on flights from Castro Urdiales? On Expedia, you have some of best airline ticket deals at your fingertips. Whether it’s a beach escape with your partner, a family vacation with your kids, or business trip with colleagues, these low airline ticket prices mean more savings for you. An excellent strategy for finding some of the best deals on flights from Castro Urdiales is to be flexible with your dates. Within each offer, you can compare prices for similar timeframes using our “Show flexible dates” feature. Depending on your destination, direct flights from Castro Urdiales may be more expensive. Airlines with strict bag policies or fees can also impact your costs. #### What is the best airline to fly from Castro Urdiales? At Expedia, we give you all the available options from our reputable partners. Select the airline that best suits your preferences and membership loyalties. You can fly from Castro Urdiales with: Ryanair, Vueling Airlines, Iberia, Volotea, Lufthansa, Swiss International Air Lines. #### What is the best month to fly from Castro Urdiales? One of the cheapest times to fly from Castro Urdiales airport(s) is April, based on the current list of flights available now. Prices on plane tickets vary considerably throughout the year due to availability and seasonal demand. #### Are there any last-minute flights from Castro Urdiales? Expedia is the place to find last-minute flights from Castro Urdiales, making it easy for you to compare prices on flights in the near future for different combinations of travel dates and from multiple airlines. We source some of the best deals for you and display some of the best offers available over the next 2 weeks. #### Why book your ticket with Expedia? Booking flights from Castro Urdiales with Expedia is the obvious choice to get low prices, save money, and see more value from every dollar spent. We show you some of the best deals happening right now and provide a vast inventory of airlines and flight routes to choose from, so you can find some of the cheapest flights from Castro Urdiales. You can customize your journey to your timeline, route preferences, budget, rewards programs, and more. #### Can I change/cancel my flight? Some flights can be changed or canceled, but fees and refunds will depend on the unique terms of your flight agreement. Airlines have different rules and restrictions for exchanging or refunding flights. For more information, go to your itinerary or visit our [customer service portal](https://www.expedia.com/service/). We recommend choosing flights with no change fees for the most flexibility. Filter by “Flexible change policies” to see flights with no change fees. \*Data specialists from both ARC and Expedia Group analysed ARC's global flight data to distil actionable information to help people save money on travel. While it's impossible to guarantee when to find the lowest prices, after examining the variables, we were able to observe trends. Analysis based on ARC, round-trip flight data between 1 October 2017 - 30 September 2018 for Economy and Premium cabin ATPs on a global basis. ## Travel information ## Flights from Castro Urdiales: Essential Travel Information | Cheapest flight from Castro Urdiales | $43 (roundtrip) | | ------------------------------------------ | ------------------------------------------------------------------------------------ | | Best airlines to fly from Castro Urdiales | Ryanair, Vueling Airlines, Iberia, Volotea, Lufthansa, Swiss International Air Lines | | Cheapest month to fly from Castro Urdiales | April | | Castro Urdiales IATA code | BIO | | Castro Urdiales Country/State | Cantabria | | Airline ticket deals from Castro Urdiales | $43 - $225 | \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - Other - [Samano Hotels ](https://www.expedia.com/Samano-Hotels.d6358730.Travel-Guide-Hotels) - [Villas in Samano ](https://www.expedia.com/Samano-Villas.d6358730-aaVillas.Travel-Guide-Accommodation) - 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