Lowcost flights from Chicago (United States) to Ontario (United States), €69 - €276

Direct distance between cities: 2755 km. Average direct flight time is 4:14 hours.

Please note! Some routes are seasonal.

From Chicago to Ontario with Fly Lili (FL)
From Chicago to Ontario with Southwest Airlines (WN)
Average ticket price: €69 - €276

Connection in Austin (United States)
From Chicago to Austin with Southwest Airlines (WN)
From Chicago to Austin with Fly Lili (FL)
From Chicago to Austin with Level (IB)
Average ticket price: €39 - €158
From Austin to Ontario with Southwest Airlines (WN)
Average ticket price: €48 - €192
Connection in Dallas (United States)
From Chicago to Dallas with Gol Transportes Aéreos (G3)
From Chicago to Dallas with Frontier Airlines (F9)
From Chicago to Dallas with Southwest Airlines (WN)
From Chicago to Dallas with Spirit Airlines (NK)
Average ticket price: €32 - €129
From Dallas to Ontario with Frontier Airlines (F9)
From Dallas to Ontario with Southwest Airlines (WN)
From Dallas to Ontario with Level (IB)
Average ticket price: €48 - €194
Connection in Denver (United States)
From Chicago to Denver with Frontier Airlines (F9)
From Chicago to Denver with Southwest Airlines (WN)
From Chicago to Denver with Spirit Airlines (NK)
From Chicago to Denver with Fly Lili (FL)
From Chicago to Denver with Level (IB)
Average ticket price: €37 - €148
From Denver to Ontario with Frontier Airlines (F9)
From Denver to Ontario with Southwest Airlines (WN)
From Denver to Ontario with Fly Lili (FL)
Average ticket price: €32 - €129
Connection in Guadalajara (Mexico)
From Chicago to Guadalajara with VivaAerobús (VB)
From Chicago to Guadalajara with Volaris (Y4)
From Chicago to Guadalajara with Frontier Airlines (F9)
Average ticket price: €70 - €279
From Guadalajara to Ontario with Volaris (Y4)
From Guadalajara to Ontario with Frontier Airlines (F9)
Average ticket price: €52 - €206
Connection in Houston (United States)
From Chicago to Houston with Frontier Airlines (F9)
From Chicago to Houston with Southwest Airlines (WN)
From Chicago to Houston with Spirit Airlines (NK)
From Chicago to Houston with Fly Lili (FL)
Average ticket price: €38 - €152
From Houston to Ontario with Frontier Airlines (F9)
From Houston to Ontario with Southwest Airlines (WN)
Average ticket price: €54 - €215
Connection in Las Vegas (United States)
From Chicago to Las Vegas with Allegiant Air (G4)
From Chicago to Las Vegas with Frontier Airlines (F9)
From Chicago to Las Vegas with Southwest Airlines (WN)
From Chicago to Las Vegas with Spirit Airlines (NK)
From Chicago to Las Vegas with Fly Lili (FL)
Average ticket price: €61 - €245
From Las Vegas to Ontario with Frontier Airlines (F9)
From Las Vegas to Ontario with Southwest Airlines (WN)
Average ticket price: €8 - €32
Connection in Nashville (United States)
From Chicago to Nashville with Allegiant Air (G4)
From Chicago to Nashville with Frontier Airlines (F9)
From Chicago to Nashville with Southwest Airlines (WN)
From Chicago to Nashville with Fly Lili (FL)
From Chicago to Nashville with Level (IB)
Average ticket price: €16 - €65
From Nashville to Ontario with Southwest Airlines (WN)
Average ticket price: €70 - €282
Connection in Oakland (United States)
From Chicago to Oakland with Southwest Airlines (WN)
From Chicago to Oakland with Spirit Airlines (NK)
From Chicago to Oakland with Fly Lili (FL)
Average ticket price: €74 - €297
From Oakland to Ontario with Southwest Airlines (WN)
Average ticket price: €15 - €59
Connection in Phoenix (United States)
From Chicago to Phoenix with Allegiant Air (G4)
From Chicago to Phoenix with Frontier Airlines (F9)
From Chicago to Phoenix with Southwest Airlines (WN)
From Chicago to Phoenix with Fly Lili (FL)
Average ticket price: €58 - €234
From Phoenix to Ontario with Southwest Airlines (WN)
From Phoenix to Ontario with Fly Lili (FL)
Average ticket price: €13 - €52
Connection in Portland (United States)
From Chicago to Portland with Southwest Airlines (WN)
From Chicago to Portland with Fly Lili (FL)
Average ticket price: €70 - €282
From Portland to Ontario with Frontier Airlines (F9)
Average ticket price: €34 - €135
Connection in Sacramento (United States)
From Chicago to Sacramento with Southwest Airlines (WN)
From Chicago to Sacramento with Fly Lili (FL)
Average ticket price: €72 - €288
From Sacramento to Ontario with Frontier Airlines (F9)
From Sacramento to Ontario with Southwest Airlines (WN)
Average ticket price: €15 - €61
Connection in San Francisco (United States)
From Chicago to San Francisco with Southwest Airlines (WN)
From Chicago to San Francisco with Fly Lili (FL)
Average ticket price: €75 - €299
From San Francisco to Ontario with Frontier Airlines (F9)
Average ticket price: €15 - €60
Connection in San Jose (United States)
From Chicago to San Jose with Southwest Airlines (WN)
From Chicago to San Jose with Fly Lili (FL)
Average ticket price: €74 - €296
From San Jose to Ontario with Southwest Airlines (WN)
Average ticket price: €13 - €53
Connection in San Juan (Puerto Rico)
From Chicago to San Juan with Southwest Airlines (WN)
From Chicago to San Juan with Spirit Airlines (NK)
From Chicago to San Juan with Fly Arna (G6)
Average ticket price: €83 - €331
From San Juan to Ontario with Fly Lili (FL)
Average ticket price: €134 - €536
Connection in Seattle (United States)
From Chicago to Seattle with Southwest Airlines (WN)
From Chicago to Seattle with Fly Lili (FL)
Average ticket price: €70 - €279
From Seattle to Ontario with Frontier Airlines (F9)
Average ticket price: €39 - €156