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$65+ Cheap flights from Illinois to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HOU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Houston

Keep the following information in mind while searching for Illinois to Houston flight deals. Data was last updated June 12, 2025.

Round-trip from

$129
(Frontier)

One-way from

$65
(Trip.com)

Popular in

March

Cheapest in

August

Average price

$211
From Illinois to Houston
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One-way flight from Illinois to Houston
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Illinois to Houston

Cheapest flights from Illinois to Houston
Explore the most affordable flight options available from Illinois to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amMDW - IAH
Nonstop2h 49mFrontier
Mon 9/89:34 amIAH - MDW
Nonstop2h 32mFrontier
Deal found 6/11$129
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/219:10 pmORD - IAH
Nonstop2h 49mSpirit Airlines
Sun 7/275:15 amIAH - ORD
Nonstop2h 35mSpirit Airlines
Deal found 6/11$129
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/216:30 amORD - IAH
Nonstop2h 50mMultiple Airlines
Mon 7/285:15 amIAH - ORD
Nonstop2h 35mMultiple Airlines
Deal found 6/11$139
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2210:25 amORD - IAH
1 stop11h 38mFrontier
Sun 9/289:01 pmIAH - ORD
1 stop12h 35mFrontier
Deal found 6/10$145
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/78:45 pmMDW - HOU
Nonstop2h 30mSouthwest
Tue 8/126:35 amHOU - MDW
Nonstop2h 25mSouthwest
Deal found 6/11$157
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:30 amORD - HOU
1 stop6h 45mSouthwest
Tue 8/125:55 amHOU - ORD
1 stop5h 55mSouthwest
Deal found 6/11$177
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/203:30 pmSTL - HOU
1 stop6h 10mDelta
Tue 9/306:00 amHOU - STL
1 stop4h 40mDelta
Deal found 6/12$208
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:44 amSTL - IAH
1 stop5h 35mSpirit Airlines
Sun 11/168:46 pmIAH - STL
1 stop11h 03mSpirit Airlines
Deal found 6/12$208
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/98:22 pmORD - IAH
Nonstop3h 02mAmerican Airlines
Fri 7/116:22 pmIAH - ORD
Nonstop3h 03mAmerican Airlines
Deal found 6/12$213
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/239:24 amMDW - IAH
1 stop8h 11mDelta
Wed 7/303:55 pmIAH - MDW
1 stop5h 47mDelta
Deal found 6/11$217
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:00 amORD - IAH
1 stop7h 50mDelta
Sat 8/28:10 amIAH - ORD
1 stop6h 43mDelta
Deal found 6/11$217
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amMDW - HOU
1 stop6h 12mDelta
Sat 9/2010:05 amHOU - MDW
1 stop5h 25mDelta
Deal found 6/11$217

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Illinois to Houston that are best for you.

Fly from

Illinois

Fly to

Houston

Route

Depart

Return

Price

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Thu 9/4

6:00 am-8:49 am

Nonstop2h 49m

Houston George Bush Intcntl

Mon 9/8

9:34 am-12:06 pm

Nonstop2h 32m

$129

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 7/21

9:10 pm-11:59 pm

Nonstop2h 49m

Houston George Bush Intcntl

Sun 7/27

5:15 am-7:50 am

Nonstop2h 35m

$129

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 7/21

6:30 am-9:20 am

Nonstop2h 50m

Houston George Bush Intcntl

Mon 7/28

5:15 am-7:50 am

Nonstop2h 35m

$139

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 9/22

10:25 am-10:03 pm

1 stop11h 38m

Houston George Bush Intcntl

Sun 9/28

9:01 pm-9:36 am

1 stop12h 35m

$145

ChicagoHouston

MDW - HOU

MDWHOU

Chicago Midway

Thu 8/7

8:45 pm-11:15 pm

Nonstop2h 30m

Houston Hobby

Tue 8/12

6:35 am-9:00 am

Nonstop2h 25m

$157

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Thu 8/7

7:30 am-2:15 pm

1 stop6h 45m

Houston Hobby

Tue 8/12

5:55 am-11:50 am

1 stop5h 55m

$177

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 7/9

8:22 pm-11:24 pm

Nonstop3h 02m

Houston George Bush Intcntl

Fri 7/11

6:22 pm-9:25 pm

Nonstop3h 03m

$213

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Wed 7/23

9:24 am-5:35 pm

1 stop8h 11m

Houston George Bush Intcntl

Wed 7/30

3:55 pm-9:42 pm

1 stop5h 47m

$217

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 7/26

7:00 am-2:50 pm

1 stop7h 50m

Houston George Bush Intcntl

Sat 8/2

8:10 am-2:53 pm

1 stop6h 43m

$217

ChicagoHouston

MDW - HOU

MDWHOU

Chicago Midway

Sat 9/13

6:00 am-12:12 pm

1 stop6h 12m

Houston Hobby

Sat 9/20

10:05 am-3:30 pm

1 stop5h 25m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Houston

What is the cheapest month to book a flight from Illinois to Houston?

Currently, September is the cheapest month in which you can book a flight from Illinois to Houston (average of $230). Flying from Illinois to Houston in March is currently the most expensive (average of $332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to HOU?

Find hourly flight availability from Illinois to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Illinois to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Illinois to Houston to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Qatar Airways
7.4
Good
3,584 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Houston one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $65. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Illinois to Houston for a low price.

  • What are the most popular routes from Illinois to Houston?

    The most popular route from Illinois to Houston is Chicago O'Hare Intl - Houston Hobby. You may also consider Chicago O'Hare Intl - Houston George Bush Intcntl or Chicago Midway - Houston Hobby.

  • Can I find deals for flights from Illinois to Houston that include hotel bookings?

    Yes. In addition to deals on Illinois to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Houston.

  • Can I find deals for business class flights from Illinois to Houston?

    Yes. Cheapflights offers flight deals from Illinois to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Houston?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Houston (average of $230). Flying from Illinois to Houston in March is currently the most expensive (average of $332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Houston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to Houston

Discover the top 6 airlines that operate flights from Illinois to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$157FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$68Average$162FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$142Average$391FlexibilityNo cancel feeOn-time71%
DeltaCheapest$144Average$389FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$160Average$359FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$182Average$345FlexibilityNo cancel feeOn-time63%

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