Explanation

Spain largest Airline: Iberia

Spain second largest Airline: Vueling

Spain third largest airline: Air Europe

Explanation

Asiana Airlines is a South Korean airline, headquartered in Seoul, South Korea. 

It is known for its high-quality service and safety record.

Explanation

The freedom of international flight routes is typically governed by the Open Skies Agreement,

which promotes liberalization and removes restrictions on aviation markets between participating countries.

Additional Information:

The Free Air Agreement is not a widely recognized term in the context of international flight routes.

Explanation

Aegean Airlines Founded: 1987, Athens

Aegean Airlines: Largest Greek airline