Lowcost flights from Ontario (United States) to Chicago (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 Ontario to Chicago with Southwest Airlines (WN)
Average ticket price: €69 - €276

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