Flight Sønderborg - Frankfurt prices from $123.16

Aegean Airlines is the largest airline in Greece, operating both domestic and international flights to over 150 destinations. Founded in 1987, the airline has grown to become a major player in the European aviation market, with a fleet of over 60 aircraft and a reputation for high-quality service. Aegean Airlines is a member of the Star Alliance, a global airline network that includes some of the world's largest carriers. The airline has won numerous awards for its customer service, including the Skytrax award for Best Regional Airline in Europe for nine consecutive years.

Air Alsie is a Danish private jet charter company that was founded in 1989. The company operates a fleet of modern aircraft, including jets, turboprops, and helicopters, and provides a range of services, including air ambulance, executive charter, cargo transport, and aircraft management. Air Alsie has a strong focus on safety, quality, and customer service, and has been certified by several international aviation organizations, including the European Aviation Safety Agency (EASA) and the International Air Transport Association (IATA). The company is headquartered in Sønderborg, Denmark, and has additional offices in Copenhagen, Aalborg, and Billund.

Air Europa is a Spanish airline that was founded in 1986. It is a member of the SkyTeam alliance and operates flights to over 50 destinations across Europe, the Americas, Africa, and Asia. The airline's main hub is located at Adolfo Suárez Madrid–Barajas Airport, and it also has secondary hubs at Palma de Mallorca Airport and Tenerife North Airport. Air Europa operates a fleet of over 50 aircraft, including Boeing 787 Dreamliners, Airbus A330s, and Embraer E195s. The airline offers a range of services to its passengers, including in-flight entertainment, Wi-Fi, and a loyalty program called SUMA.

Air France is the flag carrier airline of France, headquartered in Tremblay-en-France. It is a subsidiary of the Air France-KLM Group and a founding member of the SkyTeam global airline alliance. The airline operates a fleet of over 200 aircraft, serving more than 200 destinations worldwide. Air France offers a range of travel classes, including Economy, Premium Economy, Business, and La Première (First Class). The airline is known for its high-quality service, comfortable seating, and in-flight entertainment options. Air France is committed to sustainability and has implemented various initiatives to reduce its environmental impact, such as investing in more fuel-efficient aircraft and reducing single-use plastics.

AirBaltic is a Latvian low-cost airline that operates flights to over 70 destinations in Europe, the Middle East, and Asia. The airline was founded in 1995 and has since grown to become the largest airline in the Baltic region. AirBaltic operates a fleet of modern Airbus A220-300 aircraft, which are known for their fuel efficiency and environmental friendliness. The airline offers a range of services to its passengers, including online check-in, in-flight entertainment, and a loyalty program. AirBaltic is committed to sustainability and has set a goal to become the world's most environmentally friendly airline.

Brussels Airlines is the flag carrier airline of Belgium, headquartered in Brussels. It operates flights to over 100 destinations in Europe, Africa, North America, and Asia. The airline was founded in 2006 and is a member of the Star Alliance. Brussels Airlines is known for its high-quality service, modern fleet, and commitment to sustainability. It offers a range of travel classes, including Economy, Business, and Premium Economy. The airline also has a loyalty program called Miles & More, which allows passengers to earn and redeem miles for flights, upgrades, and other rewards. Brussels Airlines is a subsidiary of Lufthansa Group.

Lufthansa is a German airline and one of the largest airlines in Europe. It was founded in 1953 and operates flights to over 200 destinations worldwide. Lufthansa is a member of the Star Alliance, which is the world's largest airline alliance. The airline has a fleet of over 300 aircraft, including Airbus and Boeing planes. Lufthansa offers a range of services to its passengers, including in-flight entertainment, Wi-Fi, and a frequent flyer program called Miles & More. The airline is known for its high-quality service and has won numerous awards for its customer satisfaction and safety standards.

Pegasus Airlines is a low-cost airline based in Turkey. It was founded in 1990 and began operations in 2005. The airline operates flights to over 100 destinations in 40 countries, primarily in Europe, the Middle East, and Asia. Pegasus Airlines has a fleet of over 80 aircraft, consisting of Airbus A320s and Boeing 737s. The airline offers a range of services, including online check-in, in-flight meals, and a loyalty program. Pegasus Airlines is known for its affordable fares and has won several awards for its customer service and operational efficiency.

Wizz Air is a low-cost airline based in Hungary that operates flights to destinations across Europe, the Middle East, and North Africa. Founded in 2003, the airline has grown rapidly and now operates a fleet of over 100 aircraft, serving more than 150 destinations in 44 countries. Wizz Air is known for its no-frills approach to air travel, offering low fares and charging extra for additional services such as checked baggage and in-flight meals. The airline has a strong focus on efficiency and cost control, allowing it to offer some of the lowest fares in the industry.