Republic Airlines, operating as United Express, is an American airline which operated feeder flights on behalf of United Airlines from its bases in Newark, Chicago, Denver and Washington Dulles.
Vueling is Spain’s second largest airline and is part of IAG together with the flag carrier Iberia. From its multiple hubs in Spain and Italy, Vueling has an extensive network within Europe, North Africa and the Middle East.
IndiGo is India’s largest airline by passengers served and operates as a low cost carrier. From its principal hubs in Mumbai and Delhi, plus several other bases across India, IndiGo flies to domestic and regional international destinations.