AirTran Holdings, Inc. [AAI]
Alaska Air Group, Inc. [ALK]

Copa Holdings, S.A. [CPA]

ExpressJet Holdings, Inc. [XJT]

Frontier Airlines, Inc. [FRNT]

Gol Linhas Aéreas Inteligentes S.A. [GOL]

Hawaiian Holdings, Inc. [HA]

JetBlue Airways Corporation [JBLU]

Lan Airlines S.A. [LFL]

MAIR Holdings, Inc. [MAIR]
Mesa Air Group, Inc. [MESA]
Midwest Air Group Inc. [MEH]

Pinnacle Airlines Corp. [PNCL]

Republic Airways Holdings Inc. [RJET]
Ryanair Holdings plc [RYAAY]

SkyWest, Inc. [SKYW]
Southwest Airlines Co. [LUV]