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Cheap flights from Texas to Illinois from $35

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Texas to Illinois departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Frontier Logo
10:12 pm - 12:44 amIAH-ORD
2h 32mnonstop
Frontier Logo
1:36 pm - 4:33 pmORD-IAH
2h 57mnonstop
$95Frontier
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Mon, Oct 27 - Fri, Oct 31
Frontier Logo
10:12 pm - 12:44 amIAH-ORD
2h 32mnonstop
Frontier Logo
1:14 pm - 4:11 pmORD-IAH
2h 57mnonstop
$96Frontier
Find Deal
Fri, Oct 10 - Sat, Oct 11
Spirit Airlines Logo
4:29 pm - 7:16 pmIAH-ORD
2h 47mnonstop
Spirit Airlines Logo
7:35 am - 10:20 amORD-IAH
2h 45mnonstop
$103Spirit Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 15
Spirit Airlines Logo
10:23 am - 1:09 pmIAH-ORD
2h 46mnonstop
Spirit Airlines Logo
8:56 pm - 11:45 pmORD-IAH
2h 49mnonstop
$105Spirit Airlines
Find Deal
Tue, Sep 30 - Fri, Oct 3
American Airlines Logo
7:08 am - 8:57 amDFW-STL
1h 49mnonstop
American Airlines Logo
3:59 pm - 6:03 pmSTL-DFW
2h 04mnonstop
$140American Airlines
Find Deal
Wed, Nov 5 - Sat, Nov 8
Southwest Logo
12:15 pm - 2:50 pmAUS-MDW
2h 35mnonstop
Southwest Logo
9:10 am - 11:50 amMDW-AUS
2h 40mnonstop
$151Southwest
Find Deal
Wed, Oct 8 - Tue, Oct 21
Southwest Logo
5:55 pm - 8:20 pmHOU-MDW
2h 25mnonstop
Southwest Logo
9:30 pm - 12:05 amMDW-HOU
2h 35mnonstop
$157Southwest
Find Deal
Sat, Oct 18 - Mon, Oct 20
American Airlines Logo
7:00 am - 8:53 amDFW-STL
1h 53mnonstop
American Airlines Logo
7:01 am - 8:58 amSTL-DFW
1h 57mnonstop
$169American Airlines
Find Deal
Wed, Oct 15 - Mon, Oct 20
Delta Logo
3:59 pm - 11:32 pmDAL-MDW
7h 33m1 stop
Delta Logo
10:49 am - 5:53 pmMDW-DAL
7h 04m1 stop
$209Delta
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Fri, Nov 28 - Thu, Dec 4
Delta Logo
3:20 pm - 10:14 pmAUS-MDW
6h 54m1 stop
Delta Logo
1:08 pm - 6:26 pmMDW-AUS
5h 18m1 stop
$217Delta
Find Deal
Sat, Oct 18 - Wed, Oct 22

Spirit Airlines flights from Texas to Illinois

Our best Spirit Airlines deals on Texas to Illinois flight tickets
Spirit Airlines
Nov 13
IAH4:29 pmHouston George Bush Intcntl
2h 47m
ORD7:16 pmChicago O'Hare Intl
Nov 15
ORD7:35 amChicago O'Hare Intl
2h 45m
IAH10:20 amHouston George Bush Intcntl
$103
Find similar
Spirit Airlines
Sep 30
IAH10:23 amHouston George Bush Intcntl
2h 46m
ORD1:09 pmChicago O'Hare Intl
Oct 3
ORD8:56 pmChicago O'Hare Intl
2h 49m
IAH11:45 pmHouston George Bush Intcntl
$105
Find similar
Spirit Airlines
Sep 30
IAH10:23 amHouston George Bush Intcntl
2h 46m
ORD1:09 pmChicago O'Hare Intl
Oct 4
ORD8:56 pmChicago O'Hare Intl
2h 49m
IAH11:45 pmHouston George Bush Intcntl
$107
Find similar

Frontier flights from Texas to Illinois

Our best Frontier deals on Texas to Illinois flight tickets
Frontier
Oct 27
IAH10:12 pmHouston George Bush Intcntl
2h 32m
ORD12:44 amChicago O'Hare Intl
Oct 31
ORD1:36 pmChicago O'Hare Intl
2h 57m
IAH4:33 pmHouston George Bush Intcntl
$95
Find similar
Frontier
Oct 10
IAH10:12 pmHouston George Bush Intcntl
2h 32m
ORD12:44 amChicago O'Hare Intl
Oct 11
ORD1:14 pmChicago O'Hare Intl
2h 57m
IAH4:11 pmHouston George Bush Intcntl
$96
Find similar
Frontier
Oct 3
IAH8:00 pmHouston George Bush Intcntl
2h 45m
ORD10:45 pmChicago O'Hare Intl
Oct 6
ORD4:03 pmChicago O'Hare Intl
3h 07m
IAH7:10 pmHouston George Bush Intcntl
$100
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Texas to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 10/27

10:12 pm-12:44 am

Nonstop2h 32m

Chicago O'Hare Intl

Fri 10/31

1:36 pm-4:33 pm

Nonstop2h 57m

$95

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 10/10

10:12 pm-12:44 am

Nonstop2h 32m

Chicago O'Hare Intl

Sat 10/11

1:14 pm-4:11 pm

Nonstop2h 57m

$96

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 11/13

4:29 pm-7:16 pm

Nonstop2h 47m

Chicago O'Hare Intl

Sat 11/15

7:35 am-10:20 am

Nonstop2h 45m

$103

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 9/30

10:23 am-1:09 pm

Nonstop2h 46m

Chicago O'Hare Intl

Fri 10/3

8:56 pm-11:45 pm

Nonstop2h 49m

$105

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Wed 11/5

7:08 am-8:57 am

Nonstop1h 49m

Lambert-St Louis

Sat 11/8

3:59 pm-6:03 pm

Nonstop2h 04m

$140

AustinChicago

AUS - MDW

AUSMDW

Austin Bergstrom

Wed 10/8

12:15 pm-2:50 pm

Nonstop2h 35m

Chicago Midway

Tue 10/21

9:10 am-11:50 am

Nonstop2h 40m

$151

HoustonChicago

HOU - MDW

HOUMDW

Houston Hobby

Sat 10/18

5:55 pm-8:20 pm

Nonstop2h 25m

Chicago Midway

Mon 10/20

9:30 pm-12:05 am

Nonstop2h 35m

$157

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Wed 10/15

7:00 am-8:53 am

Nonstop1h 53m

Lambert-St Louis

Mon 10/20

7:01 am-8:58 am

Nonstop1h 57m

$169

DallasChicago

DAL - MDW

DALMDW

Dallas Love Field

Fri 11/28

3:59 pm-11:32 pm

1 stop7h 33m

Chicago Midway

Thu 12/4

10:49 am-5:53 pm

1 stop7h 04m

$209

AustinChicago

AUS - MDW

AUSMDW

Austin Bergstrom

Sat 10/18

3:20 pm-10:14 pm

1 stop6h 54m

Chicago Midway

Wed 10/22

1:08 pm-6:26 pm

1 stop5h 18m

$217

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Texas to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Texas is in February. Flight prices, which tend to average around $140, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $157.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Texas to Illinois is on a Thursday when prices can be found for as low as $282. Flights from Texas to Illinois on a Sunday will generally be more expensive and average around $911. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Texas to Illinois during this time can be as low as $223. Flights at noon are often more expensive with an average ticket price of $791.

What is the cheapest Texas to Illinois flight route?

Fly from Houston George Bush Intcntl to Chicago O'Hare Intl for the best Texas - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Texas when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $217 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Texas for as low as $145 on momondo.

What cabin class options are available on Texas to Illinois flights?

There are 4 cabin classes available to choose from on Texas to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Texas to Illinois flights?

No. A direct flight is the cheapest option for a flight between Texas to Illinois.

Cheap Texas to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Texas to Illinois

Best Price Found

$97

Fastest flight time

1h 42m

Direct flights

Every day

Airports in Illinois

1 airport
The best one-way flight to Illinois from Texas in the past 72 hours is $97. The best round-trip flight deal from Texas to Illinois found on momondo in the last 72 hours is $108.
The fastest flight from Texas to Illinois takes 1h 42m
Direct flights go from Texas to Illinois every day.
There is 1 airport near Illinois: Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Texas to Illinois?

    Prices for flights from Texas to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Texas to Illinois?

  • How old do you have to be to fly from Texas to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Texas to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Texas to Illinois?

Best airlines flying from Texas to Illinois

Compare and see reviews for airlines that fly from Texas to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $61Free CancellationRating
6.3
8,019 reviews
Search Spirit Airlines flights
FrontierPriceFrom $65Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
ContourPriceFrom $134Free CancellationRating
7.1
35 reviews
Search Contour flights
American AirlinesPriceFrom $137Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $147Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
7,957 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Texas to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Texas to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Texas to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Texas which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Texas to Illinois?

Once all potential Texas to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Texas to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Texas are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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