Istanbul IST to Sofia SOF flight with Turkish Airlines

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.

Qatar Airways is the national airline of Qatar, headquartered in Doha and based at Hamad International Airport. Established in 1993 and re-launched in 1997, it has grown into one of the Middle East's largest network airlines, operating an extensive network of international services across Europe, the Middle East, Africa, Asia Pacific, and the Americas. The airline offers passenger and air cargo transportation, along with services like corporate travel, online check-in, and in-flight entertainment. Qatar Airways is a member of the Oneworld alliance and operates a modern fleet of over 200 aircraft. It has received numerous accolades, including \World's Best Airline\" multiple times."

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.

British Airways (BA) is the United Kingdom’s flag carrier airline with headquarters in London near its main hub at London Heathrow Airport (LHR). BA is the second largest UK-based airline in terms of fleet size and number of passengers carried. Known as a full-service global airline, British Airways offers year-round low fares to destinations worldwide and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. syn p British Airways (BA) is the flag carrier airline of the United Kingdom with its headquarters in London near its main hub at London Heathrow Airport (LHR). Known as a full-service global airline, BA offers low fares year-round to destinations around the globe and flies to and from centrally-located airports. Its extensive global route network includes more than 170 destinations in nearly 80 countries throughout Europe, North America, South America, Asia, Africa and Australia. BA is also the second largest airline based in the UK in terms of its fleet size and number of passengers carried.

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.

Aegean Airlines is the flag carrier of Greece and a leading airline in Southeastern Europe, connecting travelers to destinations across Europe, the Middle East, and North Africa. Operating from its main hubs in Athens and Thessaloniki, Aegean offers a modern fleet and high-quality service. Passengers can enjoy comfortable seating, complimentary snacks and drinks on most flights, and additional perks in Business Class such as lounge access, premium dining, and extra comfort. With affordable fares and strong regional connectivity, Aegean Airlines is a trusted choice for exploring Greece and beyond.

Air Serbia is the national flag carrier of Serbia, with its main hub at Belgrade Nikola Tesla Airport. The airline's origins trace back to Aeroput, established in 1927, making it one of the oldest airlines in Europe. Rebranded as Air Serbia in 2013 after a partnership with Etihad Airways, the airline has since modernized its fleet and expanded its network. Air Serbia operates scheduled, seasonal, and charter flights to over 90 destinations across Europe, the Mediterranean, North America, Asia, and Africa. They offer both passenger and cargo services, and in cooperation with partner airlines, extend their reach to international destinations in Asia, Australia, North America, and Africa. The airline is a member of the International Air Transport Association (IATA).

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.