Sofia SOF to Bilbao BIO flight with Lufthansa

Lufthansa is Germany’s largest airline and one of the leading carriers in Europe, connecting travelers to destinations worldwide from its main hubs in Frankfurt and Munich. Its modern fleet offers a wide choice of travel experiences, from Economy Class with affordable fares and onboard entertainment to Premium Economy, Business Class, and First Class with extra comfort, fine dining, and exclusive lounge access.

Turkish Airlines is the national flag carrier of Turkey and one of the world’s leading airlines, flying to more international destinations than any other airline. Based in Istanbul, it connects travelers to Europe, Asia, the Americas, Africa, and beyond. Passengers can choose from Economy Class with comfortable seating, WiFi, and in-flight entertainment, or upgrade to Business Class for spacious seating, gourmet dining, and lounge access. With its award-winning service and global reach, Turkish Airlines is a top choice for both business and leisure travel.

Air France is the national flag carrier of France and one of Europe’s leading airlines, connecting travelers to destinations across Europe, the Americas, Asia, Africa, and the Middle East. Operating from its main hub at Paris Charles de Gaulle Airport, Air France offers a modern fleet with services ranging from affordable Economy fares to Premium Economy and Business Class featuring spacious seating, fine dining, and lounge access. Known for its French hospitality and style, Air France combines comfort, service, and global connectivity for both business and leisure travelers.

Vueling is a Spanish low-cost airline and one of the largest carriers in Europe, offering affordable flights across Spain, Europe, North Africa, and the Middle East. Operating mainly from its hub in Barcelona, Vueling provides a modern fleet with flexible fare options to suit different types of travelers. Passengers can choose from basic low-cost tickets to fares that include extras such as seat selection, checked baggage, and priority boarding. With WiFi and onboard services available on many routes, Vueling is a popular choice for budget-conscious travelers.

KLM Royal Dutch Airlines is the flag carrier of the Netherlands and the world’s oldest airline still operating under its original name. Based in Amsterdam Schiphol Airport, KLM connects travelers to destinations across Europe, Asia, Africa, and the Americas. Its modern fleet offers comfort for every type of journey—from affordable Economy fares with in-flight entertainment and WiFi to Premium Comfort and Business Class with extra space, dining, and lounge access. With a reputation for excellent service and global connectivity, KLM is a trusted choice for international travel.

LOT Polish Airlines, legally Polskie Linie Lotnicze LOT S.A., is the flag carrier of Poland and one of the world's oldest airlines, founded in 1928. It is a founding member of IATA and joined the Star Alliance in 2003. With its main hub at Warsaw Chopin Airport, LOT serves over 97 destinations across Europe, Asia, and North America with a fleet of 87 aircraft as of June 2025. The airline is recognized for operating one of Europe's youngest fleets and was the first European operator of the Boeing 787 Dreamliner.

TAROM (Transporturile Aeriene Române) is Romania's national flag carrier and its oldest operating airline, established in 1954. Headquartered in Otopeni, near Bucharest, its main hub is Henri Coandă International Airport. TAROM is the largest airline in Romania based on international destinations and flights, and the second-largest by fleet size and passengers carried. The Romanian government, through the Ministry of Transportation, owns over 97% of TAROM. Since June 25, 2010, TAROM has been a member of the SkyTeam alliance, expanding its global network and offering passengers access to numerous destinations worldwide. The airline operates to more than 50 destinations, including those served by its codeshare partners, across Europe, North Africa, and the Middle East.

Bulgaria Air is the national flag carrier airline of Bulgaria, headquartered at Sofia Airport. Established in 2002, it operates short and medium-haul flights to over 25 destinations in Europe and the Middle East, including domestic routes to Burgas and Varna. The airline aims to provide high-quality air transportation with traditional Bulgarian hospitality. Bulgaria Air's fleet includes Airbus A220, A319, A320, and Embraer 190/195 aircraft. They offer both Economy and Business Class, with Business Class providing amenities like priority check-in, extra baggage, lounge access, and wider seating. The airline also provides services for unaccompanied minors and has interline and codeshare agreements with various international carriers, expanding its global reach.