Barcelona El Prat Airport BCN to Kathmandu KTM flight with Qatar Airways

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.

IndiGo, officially InterGlobe Aviation Limited, is an Indian low-cost airline headquartered in Gurugram. Founded in 2005, it commenced operations in August 2006 and has rapidly grown to become India's largest airline by passengers carried and fleet size. IndiGo operates on a philosophy of affordable fares, on-time flights, and a courteous, hassle-free travel experience across its extensive domestic and international network. The airline primarily utilizes a fleet of Airbus A320 family aircraft, known for its fuel efficiency. IndiGo is recognized for its industry-leading on-time performance and has received numerous awards, including "Best Low-Cost Airline in India & South Asia" by Skytrax multiple times.

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.

Emirates is a major airline based in Dubai, United Arab Emirates, and is a subsidiary of The Emirates Group, owned by the Investment Corporation of Dubai. It is recognized as the largest airline in the Middle East and one of the world's largest international airlines. Emirates operates a fleet of wide-body aircraft, primarily Airbus A380s and Boeing 777s, serving over 150 cities in 80 countries across six continents from its hub at Dubai International Airport. The airline is known for its luxurious amenities, including private suites, onboard showers in First Class on select A380s, gourmet cuisine, and an award-winning in-flight entertainment system called "ice".

Etihad Airways is the national airline of the United Arab Emirates, headquartered in Abu Dhabi. Established by royal decree in July 2003, the airline began operations in November of the same year. It serves as one of the two flag carriers of the UAE and is the second-largest airline in the country. Etihad Airways operates flights to over 120 passenger and cargo destinations across the Middle East, Africa, Europe, Asia, Australia, and North America. The airline is wholly owned by the Abu Dhabi government.