Qatar Airways is the state-owned flag carrier. Its services covered over 140 destinations so you can always find a flight to where you want.
If you are member of the OneWorld Alliance, please be reminded that Qatar Airways is a member of it, which means if you are members of one of these airlines you can also enjoy the facilities of Qatar Airways. Here is a list of OneWorld Alliance members (as of 2015):
Air Berlin
American Airlines
British Airways
Cathay Pacific
Finnair
Iberia
Japan Airlines
LAN
Malaysia Airlines
Qantas
Qatar Airways
Royal Jordanian
S7 Airlines
SriLankan Airlines
TAM Airlines
Stopover
Flying from Chicago to Singapore? Why not make a stopover at Doha? You may make a short stay of 2 to 3 days or merely a 8-hour transit, just pop in to say hi to Souq Waqif! Qatar Airways has a easy to use Stopover booking system.