What type air travel package can be purchased at a discounted price bythird largest global airline alliance? 
Round-the-world ticket:  Now, they are almost universally offered by airline alliances such as SkyTeam, Star Alliance and Oneworld, or else by specialist travel agencies that will spend time helping customize a trip to the consumer's needs. Round-the-world ticket:  An alternative for a round-the-world ticket is a continent pass. Oneworld:  As of August 2016, Oneworld is the third largest global alliance in terms of passengers with more than 557.4 million passengers carried, behind Star Alliance (689.98 M) and SkyTeam (665.4 M).
i don't know