Cheap flights from Illinois to Houston

Travel > North America > United States > Illinois to Houston flights

Houston faces tornadoes regularly like the rest of US. The highest temperature during the summers is around 32 degree Celsius or more while the humidity is much higher in terms of the city temperature. During summers the humidity is around 90 percent during morning hours while the humidity is around 60 percent during the noon hours. To fight with heat air conditioners are used in almost every corner of the city. During the year 1980 this US city was declared as the place which uses most... (read more in our Houston Travel Guide)

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Cheapest flights found for the next 6 months

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Chicago 

Check our newest flight offers to Houston:

  • $138Spirit Airlines flight Spirit Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Houston, TX (IAH)10/27/201906:00 am
    Houston, TX (IAH)Chicago, IL (ORD)11/10/201906:00 am
    cheapoair.com check price
  • $181Spirit Airlines flight Spirit Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Houston, TX (IAH)10/27/201906:00 am
    Houston, TX (IAH)Chicago, IL (ORD)11/10/201906:00 am
    flightnetwork.com check price
  • $192Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Houston, TX (IAH)10/27/201908:56 pm
    Houston, TX (IAH)Chicago, IL (ORD)11/10/201906:00 am
    cheapoair.com check price
  • $212Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Houston, TX (IAH)10/27/201906:00 am
    Houston, TX (IAH)Chicago, IL (ORD)11/10/201905:48 pm
    flightnetwork.com check price
  • $329Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Houston, TX (IAH)02/11/202006:01 am
    Houston, TX (IAH)Chicago, IL (ORD)02/17/202005:00 pm
    cheapoair.com check price
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