from New York to Chicago

 There seem to be 56 flights a day from New York LaGuardia airport to the Chicago area in 2014.
London Heathrow airport (LHR)London Heathrow airport (LHR)
 from New York JFK airport to Chicago JFK-Chicago (ORD) there seem to be 10 flights a day in 2014.
EWR (iata code)Newark Liberty international airport
Departures Arrivals Airlines Terminals Location Railway

 from New York Newark airport (EWR) to Chicago EWR-Chicago area there seem to be 31 flights in 2014.

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