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$52+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HOU
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Illinois to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

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 November 21, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 11/20. 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.
Sat 12/76:56 pmORD - IAH
Nonstop2h 57mSpirit Airlines
Sat 12/149:38 amIAH - ORD
Nonstop2h 40mSpirit Airlines
Deal found 11/20$95
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
Fri 12/66:10 amORD - IAH
Nonstop2h 50mMultiple Airlines
Sat 12/79:56 pmIAH - ORD
Nonstop2h 37mMultiple Airlines
Deal found 11/20$98
This Frontier deal was found by Cheapflights users on 11/19. 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.
Tue 12/176:49 pmMDW - IAH
1 stop12h 59mFrontier
Wed 12/186:10 pmIAH - MDW
Nonstop2h 30mFrontier
Deal found 11/19$104
This Cheapflightsfares deal was found by Cheapflights users on 11/21. 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 12/66:10 amORD - IAH
Nonstop2h 50mFrontier
Sun 12/89:38 pmIAH - ORD
Nonstop2h 37mFrontier
Deal found 11/21$107
This Frontier deal was found by Cheapflights users on 11/20. 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.
Sun 12/87:15 amMDW - HOU
1 stop10h 11mFrontier
Wed 12/116:16 pmHOU - MDW
1 stop5h 57mFrontier
Deal found 11/20$134
This Booking.com deal was found by Cheapflights users on 11/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:25 amORD - HOU
1 stop26h 08mFrontier
Wed 12/116:16 pmHOU - ORD
1 stop19h 44mFrontier
Deal found 11/20$146
This Booking.com deal was found by Cheapflights users on 11/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/63:34 pmSTL - IAH
1 stop5h 34mFrontier
Sun 12/85:35 amIAH - STL
1 stop26h 38mFrontier
Deal found 11/20$158
This Southwest deal was found by Cheapflights users on 11/19. 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.
Mon 12/168:50 pmMDW - HOU
Nonstop2h 45mSouthwest
Fri 1/102:35 pmHOU - MDW
Nonstop2h 25mSouthwest
Deal found 11/19$209
This Delta deal was found by Cheapflights users on 11/20. 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.
Tue 12/103:40 pmORD - HOU
1 stop7h 11mDelta
Tue 12/176:42 pmHOU - ORD
1 stop5h 16mDelta
Deal found 11/20$216
This FlightHub deal was found by Cheapflights users on 11/20. 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.
Wed 12/46:46 pmSTL - HOU
1 stop14h 47mFrontier
Thu 12/510:36 amHOU - STL
1 stop21h 37mFrontier
Deal found 11/20$220
This CheapOair deal was found by Cheapflights users on 11/19. 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.
Thu 12/54:26 pmSTL - IAH
1 stop7h 39mMultiple Airlines
Sun 12/85:35 amIAH - STL
1 stop26h 38mMultiple Airlines
Deal found 11/19$230
This Delta deal was found by Cheapflights users on 11/20. 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 12/49:31 amMDW - IAH
1 stop5h 04mDelta
Wed 12/1110:36 amIAH - MDW
1 stop7h 56mDelta
Deal found 11/20$236

Find flights from Illinois to Houston within your budget

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 2,629,791 searches. Data last updated November 21, 2024.

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Depart

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Price

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 12/7

6:56 pm-9:53 pm

Nonstop2h 57m

Houston George Bush Intcntl

Sat 12/14

9:38 am-12:18 pm

Nonstop2h 40m

$95

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 12/6

6:10 am-9:00 am

Nonstop2h 50m

Houston George Bush Intcntl

Sat 12/7

9:56 pm-12:33 am

Nonstop2h 37m

$98

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Tue 12/17

6:49 pm-7:48 am

1 stop12h 59m

Houston George Bush Intcntl

Wed 12/18

6:10 pm-8:40 pm

Nonstop2h 30m

$104

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 12/6

6:10 am-9:00 am

Nonstop2h 50m

Houston George Bush Intcntl

Sun 12/8

9:38 pm-12:15 am

Nonstop2h 37m

$107

ChicagoHouston

MDW - HOU

MDWHOU

Chicago Midway

Wed 1/22

8:15 am-5:26 pm

1 stop9h 11m

Houston Hobby

Sun 1/26

6:16 pm-12:17 am

1 stop6h 01m

$118

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Thu 2/6

7:25 am-9:36 am

1 stop26h 11m

Houston Hobby

Sun 2/9

6:16 pm-12:32 am

1 stop6h 16m

$129

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Fri 12/6

3:34 pm-9:08 pm

1 stop5h 34m

Houston George Bush Intcntl

Sun 12/8

5:35 am-8:13 am

1 stop26h 38m

$158

St. LouisHouston

STL - HOU

STLHOU

Lambert-St Louis

Sat 1/18

7:09 pm-5:26 pm

1 stop22h 17m

Houston Hobby

Fri 1/24

10:36 am-9:16 am

1 stop22h 40m

$168

ChicagoHouston

MDW - HOU

MDWHOU

Chicago Midway

Thu 1/9

1:40 pm-4:30 pm

Nonstop2h 50m

Houston Hobby

Wed 1/15

11:20 am-1:45 pm

Nonstop2h 25m

$178

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 2/14

7:55 pm-10:59 pm

Nonstop3h 04m

Houston George Bush Intcntl

Sun 2/16

9:38 pm-12:15 am

Nonstop2h 37m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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.

Travel insights for flights from Illinois to Houston

Get recent, data-driven insights about flights from Illinois to Houston including ideal travel times, pricing trends, and more.

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 November 21, 2024.

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 November 21, 2024.
Peruse reviews from past customers who have flown with Southwest, Frontier 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.
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Allegiant Air
7.4
Good
850 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

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 Frontier, with whom users have recently found tickets for as low as $52. However, be on the lookout for offers from Spirit Airlines and American 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$142FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$71Average$161FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$141Average$431FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$154Average$426FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$189Average$339FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$410FlexibilityNo cancel feeOn-timeN/A
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