世界前20名廉價航空公司(World's 20 Biggest Low Cost Carriers)

目前世界廉價航空公司的成長率大抵上是維持成長趨勢，西南航空為世界客運量最大的廉價航空公司，目前載客量前20名中有8家位於北美，歐洲與亞洲各5家。雖然近年來廉價航空數目不斷成長，但除了前幾名的規模較大外，其他廉價航空公司的規模並不足以威脅一般的航空公司。

Rank	Airlines	Capacity December 2012	Capacity December 2011	Percentage change
1	Southwest Airlines	3.27 billion	3.05 billion	7.3%
2	Ryanair	1.47 billion	1.59 billion	-7.2%
3	JetBlue Airways	1.21 billion	1.18 billion	2.1%
4	easyJet	1.12 billion	1.05 billion	6.4%
5	Gol	913 million	1 billion	-9.3%
6	Lion Airlines	810 million	602 million	34.6%
7	Jetstar Airways	732 million	627 million	16.7%
8	Westjet	703 million	677 million	3.9%
9	AirTran Airways	593 million	704 million	-15.7%
10	AirAsia Berhad	592 million	514 million	15.2%
11	Indigo	489 million	363 million	34.6%
12	Norwegian	460 million	376 million	22.5%
13	Condor	400 million	408 million	-2.1%
14	Virgin America	387 million	350 million	10.7%
15	Spirit Airlines	373 million	297 million	25.3%
16	Volaris	348 million	305 million	14.3%
17	Frontier Airlines	330 million	363 million	-9.2%
18	Wizz Air	330 million	314 million	4.8%
19	SpiceJet	313 million	270 million	16%
20	AirAsia X	306 million	367 million	-16.7%