Airlines:

United (Star Alliance)
https://www.google.com/?gws_rd=ssl#q=united+airlines

American Airlines
https://www.google.com/?gws_rd=ssl#q=american+airlines

Luftansa (Star Alliance)
Air Canada (Star Alliance)
British Airlines

Virgin Air

Alaska

Related Airlines

Travel Sites
Expedia
Obitz
Travelocity
Cheap Tickets
Priceline: http://wp.me/p4q0k7-hM
Kayak