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$25+ Cheap flights from Texas to Illinois

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Texas to Illinois

Keep the following information in mind while searching for Texas to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

$90
(Cheapflightsfares)

One-way from

$25
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$161

Good round-trip deal

$104 or less

Good one-way deal

$98 or less
From Texas to Illinois
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One-way flight from Texas to Illinois
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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 ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Texas to Illinois.
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Price to beat on a one-way flight from Texas to Illinois.
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Find flight deals from Texas to Illinois

Cheapest flights from Texas to Illinois
Explore the most affordable flight options available from Texas to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:23 amIAH - ORD
Nonstop2h 46mSpirit Airlines
Sat 10/411:37 amORD - IAH
Nonstop2h 43mSpirit Airlines
Deal found 9/10$90
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:05 pmIAH - ORD
Nonstop2h 45mMultiple Airlines
Mon 10/64:03 pmORD - IAH
Nonstop3h 07mMultiple Airlines
Deal found 9/11$91
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:23 amIAH - ORD
Nonstop2h 46mSpirit Airlines
Sat 10/411:37 amORD - IAH
Nonstop2h 43mSpirit Airlines
Deal found 9/11$92
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 10/185:28 pmIAH - ORD
Nonstop2h 46mFrontier
Mon 10/206:00 amORD - IAH
Nonstop2h 51mFrontier
Deal found 9/9$93
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sun 9/288:00 pmIAH - ORD
Nonstop2h 45mFrontier
Sat 10/111:14 pmORD - IAH
Nonstop2h 57mFrontier
Deal found 9/9$97
This Frontier deal was found by Cheapflights users on 9/11. 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.
Sat 10/115:28 pmIAH - ORD
Nonstop2h 46mFrontier
Mon 10/206:00 amORD - IAH
Nonstop2h 51mFrontier
Deal found 9/11$98
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:00 pmIAH - ORD
Nonstop2h 45mMultiple Airlines
Tue 9/302:04 pmORD - IAH
Nonstop2h 46mMultiple Airlines
Deal found 9/9$99
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:09 pmIAH - MDW
Nonstop2h 37mFrontier
Mon 10/62:26 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 9/10$99
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:23 amIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 10/111:57 amORD - IAH
1 stop10h 45mSpirit Airlines
Deal found 9/10$100
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:04 amIAH - MDW
Nonstop2h 33mFrontier
Mon 11/171:37 pmMDW - IAH
1 stop8h 31mFrontier
Deal found 9/10$100
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:05 pmIAH - ORD
Nonstop2h 45mSpirit Airlines
Sat 10/411:37 amORD - IAH
Nonstop2h 43mSpirit Airlines
Deal found 9/10$101
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:23 amIAH - ORD
Nonstop2h 46mSpirit Airlines
Fri 10/311:37 amORD - IAH
Nonstop2h 43mSpirit Airlines
Deal found 9/11$102

Cheapflights Fare Finder

 
Customize your flight search to find flights from Texas to Illinois 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 September 11, 2025.
Use the filters below to find and compare flights from Texas to Illinois that are best for you.

Fly from

Texas

Fly to

Illinois

Route

Depart

Return

Price

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Sun 10/5

10:08 am-12:46 pm

Nonstop2h 38m

Chicago Midway

Mon 10/6

6:20 am-4:57 pm

1 stop10h 37m

$109

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Tue 10/14

8:05 am-1:38 pm

1 stop5h 33m

Chicago Midway

Sat 10/18

10:00 am-12:52 pm

Nonstop2h 52m

$109

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Thu 10/16

5:57 pm-11:46 pm

1 stop5h 49m

Chicago Midway

Sat 10/18

10:00 am-12:52 pm

Nonstop2h 52m

$110

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Sat 10/11

1:39 pm-4:09 pm

Nonstop2h 30m

Chicago Midway

Sun 10/12

5:20 am-4:38 pm

1 stop11h 18m

$114

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Thu 10/16

2:12 pm-4:42 pm

Nonstop2h 30m

Chicago Midway

Sun 10/19

12:09 pm-7:04 am

1 stop18h 55m

$115

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Tue 10/14

8:05 am-1:38 pm

1 stop5h 33m

Chicago Midway

Mon 10/20

9:00 am-11:49 am

Nonstop2h 49m

$119

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Thu 10/9

2:12 pm-4:42 pm

Nonstop2h 30m

Chicago Midway

Sun 10/12

5:20 am-4:38 pm

1 stop11h 18m

$131

DallasChicago

DFW - MDW

DFWMDW

Dallas/Fort Worth

Thu 10/23

9:01 pm-11:20 pm

Nonstop2h 19m

Chicago Midway

Mon 10/27

12:11 pm-11:15 am

1 stop23h 04m

$134

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 10/24

12:39 pm-3:12 pm

Nonstop2h 33m

Chicago Midway

Sun 10/26

10:30 am-1:22 pm

Nonstop2h 52m

$135

DallasChicago

DAL - ORD

DALORD

Dallas Love Field

Sat 10/25

9:20 am-2:25 pm

1 stop5h 05m

Chicago O'Hare Intl

Wed 10/29

7:30 am-10:00 am

Nonstop2h 30m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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6

Best time to book a flight from Texas to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Texas 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 Texas to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Texas to Illinois (average of $245). Flying from Texas to Illinois in March is currently the most expensive (average of $321). 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 TX to IL?

Find hourly flight availability from Texas to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

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.

Weekly flight availability from Texas to Illinois

Explore weekly flight availability from Texas to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from USTX to USIL are scheduled on a Monday (76 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (37 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Texas to Illinois by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

  • How long is the flight from Texas to Illinois?

    For as low as $149, Frontier can have you in Illinois from Texas in 1h 53m. The distance between Texas and Illinois is about 550 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Texas to Illinois are Frontier ($25), Southwest ($67), and United Airlines ($67).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Texas to Illinois 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 Texas to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Texas to Illinois (average of $245). Flying from Texas to Illinois in March is currently the most expensive (average of $321). 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 Texas to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Texas to Illinois

Discover the top 7 airlines that operate flights from Texas to Illinois. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$61Average$197FlexibilityNo cancel feeOn-time65%
FrontierCheapest$64Average$197FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$137Average$417FlexibilityNo cancel feeOn-time71%
ContourCheapest$144Average$230FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$147Average$351FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$160Average$388FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$331FlexibilityNo cancel feeOn-timeN/A

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