Flight Thessaloniki - Léros prices from $246.47

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 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.

British Airways is the flag carrier airline of the United Kingdom, headquartered in London. It is one of the largest airlines in Europe and operates flights to over 180 destinations worldwide. The airline was founded in 1974 and has since grown to become a major player in the aviation industry. British Airways is known for its high-quality service, comfortable seating, and extensive route network. The airline operates a fleet of over 250 aircraft, including the Airbus A380 and Boeing 787 Dreamliner. British Airways is a member of the Oneworld airline alliance and has codeshare agreements with several other airlines.

Hahn Air is a German airline that operates as a scheduled and charter carrier. However, it is best known for its role as a ticketing and distribution service provider for other airlines. Hahn Air has agreements with over 350 airlines worldwide, allowing them to sell their flights through Hahn Air's global distribution system (GDS). This enables travel agents to book flights on airlines that may not be available through traditional GDS systems. Hahn Air also offers its own branded flights to a limited number of destinations in Europe. The airline was founded in 1994 and is headquartered in Dreieich, Germany.

Turkish Airlines is the national flag carrier airline of Turkey, headquartered in Istanbul. It operates scheduled flights to over 300 destinations in Europe, Asia, Africa, and the Americas, making it one of the largest airlines in the world by number of destinations served. Turkish Airlines has won numerous awards for its service, including "Best Airline in Europe" six years in a row from 2011 to 2016. The airline operates a modern fleet of over 350 aircraft, including Airbus A320s, A330s, A340s, A350s, and Boeing 737s, 777s, and 787s. Turkish Airlines is a member of the Star Alliance, the world's largest airline alliance.

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.