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AIRLINE CODE SHARE ALLIANCES
As of April 15, 2011
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Airline alliances are strategic agreements between a group of airlines to cooperate for the foreseeable future on a substantial level i.e. code sharing of flights. The level of cooporative agreements differs between alliances. The three largest alliances are Star Alliance, SkyTeam and Oneworld.

* DENOTES DIRECT FLIGHTS INTO IAD

SKYTEAM ALLIANCE
http://www.skyteam.com
Air Canada (AC)
Air New Zealand (AZ)
ANA* (NH)
Asiana Airlines (OZ)
Austrian Airlines* (OS)
BMI (BD)
Continental Airlines* (CO)
Croatia Airlines (OU)
LOT Polish Airlines (LO)
Lufthansa* (LH)
Scandinavian Airlines (SAS)* (SK)
Singapore Airlines (SQ)
South African Airways* (SA)
Spanair (JK)
SWISS (LX)
TapPortugal (TP)
Thai (TG)
Turkish Airlines* (TK)
US Airways* (US)
United* (UA)

AEROFLOT*
AeroMexico (SU)
Air France* (AF)
KLM Royal Dutch Airlines* (KL)
Alitalia (AZ)
China Southern(SZ)
CSA Czech Airlines (OK)
Delta* (DL)
Korean Air*(KE)
Northwest Airlines(NWA)* (NW)Skyteam Associates
Air Europe (UX)
Copa Airlines* (CM)
Kenya Airways(KQ)

 American* (AA)
Aer Lingus* (EI)
British Airways* (BA)
Cathay Pacific Airways (CX)
Dragonair (KA)
Finnair (AY)
Iberia Airlines* (IB)
Japan Airlines (JL)
LAN Airlines LA)
Malev Hungarian Airlines(MA)
Quantas Airways (QF)
Royal Jordanian (RJ)