Domestic Available Seat Miles as  a Percent of Total System Available Seat Miles
		1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
American		70.5%	70.3%	70.3%	68.7%	68.6%	67.9%	67.9%	72.4%	70.5%	67.7%	65.4%	64.0%	63.9%	62.3%	61.3%	60.8%	59.4%	58.9%	57.8%	56.7%	60.1%	62.3%	61.2%	61.4%	62.0%	75.0%
Continental		84.1%	81.7%	75.8%	71.0%	67.1%	65.3%	66.3%	65.1%	64.0%	61.7%	58.9%	56.8%	56.0%	53.4%	52.4%	51.4%	50.5%
Delta		76.8%	78.9%	79.5%	77.6%	77.8%	77.2%	75.9%	76.0%	77.3%	75.8%	73.6%	66.0%	61.4%	56.3%	55.0%	54.8%	53.5%	54.1%	54.7%	54.9%	56.0%	57.7%	58.5%	59.7%	60.6%	71.9%
Northwest		60.8%	60.2%	59.6%	59.4%	60.7%	59.7%	59.8%	60.2%	61.4%	61.5%	60.1%	59.4%	57.6%	53.5%	54.6%
United		63.3%	63.2%	62.3%	63.2%	65.0%	62.7%	61.2%	63.4%	65.0%	64.3%	59.8%	60.7%	59.2%	57.0%	56.5%	55.4%	52.4%	51.1%	50.9%	50.1%	50.2%	50.8%	51.9%	52.6%	52.9%	58.1%
US Airways		94.9%	92.8%	91.1%	89.7%	88.4%	86.8%	83.7%	81.0%	76.6%	74.9%	75.0%	71.9%	73.5%	78.3%	75.3%	73.6%	73.2%	73.5%	73.7%	73.4%	74.9%
America West		98.7%	96.8%	96.8%	97.2%	98.0%	98.1%	97.9%	97.1%	96.6%	96.7%	96.2%	96.7%	96.1%
--sub Network		72.8%	72.6%	71.8%	70.8%	70.9%	69.8%	69.2%	70.4%	70.2%	68.8%	66.4%	64.1%	62.3%	59.5%	58.6%	57.9%	56.4%	56.5%	56.5%	56.0%	56.4%	57.1%	57.3%	57.9%	58.5%	68.8%
Southwest		100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	99.3%	97.4%	96.9%	96.4%	96.4%	96.7%	98.2%
AirTran		100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	99.5%	99.6%	99.9%	100.0%	99.1%	95.6%	94.8%	90.9%	84.7%	76.9%
jetBlue							100.0%	100.0%	100.0%	100.0%	98.6%	99.4%	100.0%	100.0%	95.4%	88.4%	85.1%	84.7%	83.8%	82.9%	79.5%	78.9%	79.2%	78.8%	77.9%	76.3%	78.0%
Alaska		93.3%	92.5%	92.5%	92.0%	91.6%	90.7%	90.9%	90.2%	90.2%	90.5%	90.6%	89.7%	88.9%	90.1%	91.6%	92.4%	91.6%	92.3%	92.5%	93.0%	93.4%	92.8%	92.1%	94.2%	95.1%	93.3%
Virgin America														100.0%	100.0%	100.0%	100.0%	96.5%	96.2%	96.9%	97.3%	97.3%	97.5%	97.5%	97.6%
Hawaiian		94.3%	94.5%	95.0%	95.1%	94.1%	89.2%	91.3%	96.6%	98.5%	94.2%	91.7%	93.2%	94.7%	90.6%	89.1%	88.5%	74.9%	67.5%	61.8%	65.7%	68.8%	68.3%	64.6%	66.0%	68.0%	78.8%
-- sub LCC		97.9%	97.8%	97.9%	97.8%	97.8%	97.4%	97.7%	98.1%	98.3%	98.0%	98.1%	98.2%	98.3%	97.6%	96.4%	95.4%	94.1%	92.9%	91.8%	91.4%	91.3%	91.0%	90.3%	90.2%	90.1%	92.7%
Allegiant							100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	99.9%	100.0%	100.0%	100.0%	100.0%	99.9%	100.0%	100.0%	100.0%
Frontier		100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	93.1%	92.2%	90.0%	91.8%	93.8%	92.2%	93.6%	88.1%	86.9%	87.7%	89.4%	92.6%	92.0%	90.9%	91.5%	91.7%
Spirit		100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	93.7%	87.0%	80.5%	79.1%	80.6%	81.4%	83.5%	85.7%	88.1%	88.8%	89.8%	90.7%	92.2%	90.8%	88.7%	91.2%
-- sub Other		100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	100.0%	94.0%	91.8%	88.3%	89.0%	91.0%	90.6%	91.6%	90.0%	90.6%	91.1%	91.9%	93.3%	93.7%	92.6%	91.7%	93.3%
Total All Sectors		74.8%	74.8%	74.2%	73.5%	73.8%	73.0%	73.0%	74.5%	75.0%	74.0%	72.5%	71.2%	70.5%	68.6%	68.0%	67.5%	66.6%	66.7%	66.7%	66.4%	67.2%	68.1%	68.4%	69.0%	69.3%	78.5%
Source:  US DOT Form 41 via BTS, schedule T2.