1. Emirates: Emirates is one of the two flag carriers of the United Arab Emirates UAE. It is a subsidiary of The Emirates Group.

2. Cathay Pacific: Cathay Pacific is the flag carrier of Hong Kong. The airline's operations have passenger and cargo services to more than 60 countries.

3. Singapore Airlines: Singapore Airlines is the flag carrier of Singapore. It is widely renowned as one of the world's best carriers.

4. Qatar Airways: Qatar Airways is the flag carrier of Qatar. The airline flies to over 170 international destinations across five continents.

5. Turkish Airlines: It is the flag carrier of Turkey and it operates scheduled services to 349 destinations, including cargo.

6. Korean Air: is the flag carrier of South Korea and its largest airline based on fleet size, international destinations, and international flights.

7. Delta Air Lines: Delta Air Lines is a major airline in the United States and its oldest operating airline and the seventh-oldest operating worldwide.

8. Air Canada: Air Canada is the flag carrier and the largest airline of Canada, by size and passengers carried. Air Canada was founded in 1937.

9. Qantas: It is the flag carrier of Australia, and largest airline by fleet size, international flights, & international destinations in Australia.

10. KLM: KLM is the flag carrier of the Netherlands. Founded in 1919, KLM is the oldest operating airline in the world.