The information below indicates the percentage of Alaska Airlines' available seat miles (ASMs) used in the airline's primary markets. The information below does not include ASMs for charter flights.

Market	% of Total ASMs
Alaska long haul	11.1%
Alaska regional	4.8%
Arizona/Nevada	8.2%
Bay Area	6.1%
Canada	1.9%
Hawaii	17.9%
Mexico	10.4%
Mid-Continental	10.1%
Pacific Northwest	0.3%
Southern California	17.6%
Transcontinental	11.6%

Source: Company data

Capacity By Region First Quarter 2011 - Horizon Air

The information below indicates the percentage of Horizon Air's available seat miles (ASMs) used in the airline's primary markets. The information below does not include ASMs for charter flights.

Market	% of Total ASMs
Arizona/Nevada	5.2%
Bay Area	20.6%
Canada	9.3%
Pacific Northwest Shuttle	18.7%
Feeder Routes	22.1%
Southern California	21.6%
Mexico	2.4%

Source: Company data

Alaska Air Group Passenger Share First Quarter 2011*

The information below indicates the share of the market's passengers Alaska Airlines and Horizon Air collectively transport on dominant routes leaving or arriving in one of Alaska Airlines' hubs of Seattle; Portland, Ore; Los Angeles; and Anchorage, Alaska.

Seattle To:	Market Passenger Share**
Las Vegas	70%
Los Angeles	51%
Spokane, WA	81%
Orange County, CA	82%
San Diego	71%
Phoenix	45%
San Jose, CA	64%
Oakland, CA	43%
Burbank, CA	74%
San Francisco	42%

Portland, Ore. To:	Market Passenger Share**
San Jose, CA	46%
Las Vegas	51%
Orange County, CA	76%
San Diego	57%
Seattle	78%

Los Angeles To:	Market Passenger Share**
Seattle	51%
Vancouver, British Columbia	73%
Portland, OR	52%
Los Cabos, Mexico	34%
Puerto Vallarta	58%

Anchorage, Alaska To:	Market Passenger Share**
Fairbanks, Alaska	89%
Seattle	93%
Juneau, Alaska	100%
Bethel, Alaska	91%
Portland, OR	90%

*Source: APGDat U.S. DOT O&D report (information lags by two quarters)
** Alaska Air Group totals include passengers carried on Alaska Airlines and Horizon Air only.