When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 49 days in advance, which can save you up to 122% on flights from Texas to Illinois compared to booking the week you need them. Waiting 49 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $232. For sooner than that we have options available in the next 3 days from $349.
September can be a great time to fly to Illinois from Texas with a flight ticket averaging about $244. Cheapflights users have found deals in the month of September for as cheap as $77. The most expensive prices can be found in the month of July.
When flying from Texas to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$45 - $73
Route
Depart
Return
Price
Houston George Bush IntcntlChicago O'Hare Intl
IAH - ORD
IAHORD
Houston George Bush Intcntl
Sat 5/18
Nonstop2h 36m
Chicago O'Hare Intl
Wed 5/22
Nonstop2h 47m
Houston George Bush IntcntlChicago O'Hare Intl
IAH - ORD
IAHORD
Houston George Bush Intcntl
Sat 5/18
Nonstop2h 36m
Chicago O'Hare Intl
Wed 5/22
Nonstop2h 47m
Houston George Bush IntcntlChicago O'Hare Intl
IAH - ORD
IAHORD
Houston George Bush Intcntl
Wed 5/22
Nonstop2h 36m
Chicago O'Hare Intl
Wed 5/29
Nonstop2h 47m
Houston George Bush IntcntlChicago O'Hare Intl
IAH - ORD
IAHORD
Houston George Bush Intcntl
Tue 5/7
Nonstop2h 39m
Chicago O'Hare Intl
Sat 5/11
Nonstop2h 47m
Houston George Bush IntcntlChicago O'Hare Intl
IAH - ORD
IAHORD
Houston George Bush Intcntl
Wed 5/22
Nonstop2h 38m
Chicago O'Hare Intl
Wed 5/29
Nonstop2h 47m
Dallas/Fort WorthChicago O'Hare Intl
DFW - ORD
DFWORD
Dallas/Fort Worth
Wed 5/8
Nonstop2h 23m
Chicago O'Hare Intl
Sun 5/12
Nonstop2h 29m
Dallas/Fort WorthChicago Midway
DFW - MDW
DFWMDW
Dallas/Fort Worth
Wed 5/1
Nonstop2h 24m
Chicago Midway
Sat 5/4
Nonstop2h 44m
Dallas/Fort WorthChicago O'Hare Intl
DFW - ORD
DFWORD
Dallas/Fort Worth
Sat 5/4
Nonstop2h 26m
Chicago O'Hare Intl
Wed 5/8
Nonstop2h 37m
Dallas/Fort WorthChicago Midway
DFW - MDW
DFWMDW
Dallas/Fort Worth
Tue 5/7
Nonstop2h 21m
Chicago Midway
Fri 5/17
Nonstop2h 45m
No data available for this route at this time. Please check back soon.
Overall
Boarding
Food
Entertainment
Crew
Comfort
Reviews
We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.
Overall
Boarding
Food
Entertainment
Crew
Comfort
Reviews
We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.
Overall
Boarding
Food
Entertainment
Crew
Comfort
Reviews
We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.
Overall
Boarding
Food
Entertainment
Crew
Comfort
Reviews
We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.
Overall
Boarding
Food
Entertainment
Crew
Comfort
Reviews
We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.
Overall
Boarding
Food
Entertainment
Crew
Comfort
Reviews
We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.
11%of flight departures | Early morningMidnight to 6 am |
---|---|
37%of flight departures | Morning6 am to noon |
42%of flight departures | AfternoonNoon to 6 pm |
10%of flight departures | Evening6 pm to midnight |
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