with: United Airlines (UA599, UA541, UA2133, UA519, UA2395, UA204), American Airlines (AA2465), Aer Lingus Irish Airlines (EI6298)
with: Virgin Atlantic Airways (VS3232, VS3230), Korean Air (KE6757), Delta Air Lines (DL5758, DL5694, DL5844, DL5697, DL5764)
with: Delta Air Lines (DL5779, DL5738, DL5758, DL5844), Virgin Atlantic Airways (VS3231, VS3235), United Airlines (UA361), Korean Air (KE6756)
with: Westjet (WS6786, WS6788), Deutsche Lufthansa (LH7764), Jet Airways (India) (9W7984), Korean Air (KE7369), KLM (KL5624), Virgin Atlantic Airways (VS4905), Air Canada (AC5673)
with: United Airlines (UA597, UA432, UA1800, UA640), American Airlines (AA2775), SAS Scandinavian Airlines (SK8808), Austrian Airlines (OS7744), Aer Lingus Irish Airlines (EI6301)
with: Westjet (WS6609, WS7581, WS6607, WS6611), Delta Air Lines (DL3438), Virgin Atlantic Airways (VS4176, VS4548), Air Canada (AC4837)
with: Allegiant Air (G41031, G452, G4112, G4146, G41033), Contour Airlines (LF3202), JetBlue Airways (B65295), Spirit Airlines (NK562)
with: Allegiant Air (G457, G475), Frontier Airlines (F92007), Spirit Airlines (NK505), Southwest Airlines (WN4477, WN495, WN543, WN758)
with: Frontier Airlines (F92075, F92019), Allegiant Air (G455, G4193, G4192), Southwest Airlines (WN2300, WN204, WN420)
with: Westjet (WS6608, WS6606, WS7734), Delta Air Lines (DL3443, DL3485), Air Canada (AC4836), SAS Scandinavian Airlines (SK6800), United Airlines (UA3597)
with: Allegiant Air (G4105, G4121, G4252), Frontier Airlines (F92041, F92039), Southwest Airlines (WN100, WN142, WN701)
with: Allegiant Air (G41030, G453, G454, G4113), Contour Airlines (LF3201), Spirit Airlines (NK188, NK561), Southwest Airlines (WN2315)
with: Westjet (WS6787, WS6789), Delta Air Lines (DL3418, DL3410), JetBlue Airways (B6842, B61042), Korean Air (KE7370), Jet Airways (India) (9W7932)
with: United Airlines (UA495, UA6107, UA4995, UA6210), Air Canada (AC4972, AC3890, AC3896), Deutsche Lufthansa (LH9389)
with: Allegiant Air (G41717, G41296, G41204, G41223, G41227, G42790, G41710), Spirit Airlines (NK831)
with: Allegiant Air (G41801, G41818, G41812, G41859, G41861), Southwest Airlines (WN2849, WN1199, WN2131)
with: Allegiant Air (G41800, G41840, G41804, G41847, G41834, G41831), Southwest Airlines (WN177, WN3178)
with: Korean Air (KE6749), Jet Airways (India) (9W7962), Frontier Airlines (F92023), Allegiant Air (G41308, G41325), Delta Air Lines (DL358, DL546, DL1831)
with: Allegiant Air (G4149, G468), Southwest Airlines (WN833, WN2535, WN2574, WN2648, WN2935, WN3134)
with: Virgin Atlantic Airways (VS4176, VS4548), Air Canada (AC4837, AC4841, AC4839), SAS Scandinavian Airlines (SK6801, SK3949), Jet Airways (India) (9W7954)
History
Allegiant Air is an American Airline, owned by Allegiant Travel Co. The carrier was established in 1997 as WestJet Express. After two trademark disputes with WestJet Air Center and WetJet Airlines, the owner adopted the name Allegiant Air in 1998 and the airline was given the go ahead for scheduled and charter operations to Canada, USA and Mexico. The first scheduled service began in 1999 between Las Vegas and Fresno. Allegiant flies to 55 destinations throughout the States focusing on smaller airports not served by larger airlines.