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Cheap flights from Illinois to Houston from $53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Houston departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Illinois to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:25 am - 8:32 am
ORD
-
IAH
3h 07mnonstop
Multiple Airlines Logo
5:46 pm - 8:25 pm
IAH
-
ORD
2h 39mnonstop
$82Multiple Airlines
Mon, May 11 - Tue, May 19
Multiple Airlines Logo
8:05 am - 11:29 am
ORD
-
IAH
3h 24mnonstop
Multiple Airlines Logo
3:37 pm - 6:18 pm
IAH
-
ORD
2h 41mnonstop
$83Multiple Airlines
Sat, Feb 28 - Wed, Mar 4
Spirit Airlines Logo
9:45 am - 12:41 pm
ORD
-
IAH
2h 56mnonstop
Spirit Airlines Logo
6:14 am - 8:50 am
IAH
-
ORD
2h 36mnonstop
$84Spirit Airlines
Tue, Mar 24 - Tue, Mar 31
Frontier Logo
8:05 am - 11:29 am
ORD
-
IAH
3h 24mnonstop
Frontier Logo
11:17 am - 2:05 pm
IAH
-
ORD
2h 48mnonstop
$86Frontier
Sat, Feb 28 - Thu, Mar 5
Frontier Logo
10:00 am - 12:58 pm
MDW
-
IAH
2h 58mnonstop
Frontier Logo
1:43 pm - 4:13 pm
IAH
-
MDW
2h 30mnonstop
$87Frontier
Mon, Mar 9 - Fri, Mar 13
Spirit Airlines Logo
9:45 am - 12:41 pm
ORD
-
IAH
2h 56mnonstop
Spirit Airlines Logo
6:14 am - 8:50 am
IAH
-
ORD
2h 36mnonstop
$91Spirit Airlines
Wed, Mar 25 - Tue, Mar 31
Southwest Logo
6:05 pm - 8:50 pm
MDW
-
HOU
2h 45mnonstop
Southwest Logo
8:40 pm - 11:05 pm
HOU
-
MDW
2h 25mnonstop
$157Southwest
Sat, Apr 18 - Tue, Apr 21
Southwest Logo
6:05 pm - 8:50 pm
MDW
-
HOU
2h 45mnonstop
Southwest Logo
8:40 pm - 11:05 pm
HOU
-
MDW
2h 25mnonstop
$167Southwest
Sat, Apr 18 - Tue, Apr 21
Delta Logo
5:59 pm - 11:06 pm
ORD
-
HOU
5h 07m
1 stop
Delta Logo
5:23 pm - 11:59 pm
HOU
-
ORD
6h 36m
1 stop
$197Delta
Sat, Apr 18 - Tue, Apr 21
Delta Logo
5:59 pm - 11:08 pm
ORD
-
HOU
5h 09m
1 stop
Delta Logo
1:16 pm - 6:35 pm
HOU
-
ORD
5h 19m
1 stop
$207Delta
Sat, May 9 - Fri, May 15

Southwest flights from Illinois to Houston

Our best Southwest deals on Illinois to Houston flight tickets
Southwest
Apr 18
MDW6:05 pmChicago Midway
2h 45m
HOU8:50 pmHouston Hobby
Apr 21
HOU8:40 pmHouston Hobby
2h 25m
MDW11:05 pmChicago Midway
$157
Southwest
Apr 18
MDW6:05 pmChicago Midway
2h 45m
HOU8:50 pmHouston Hobby
Apr 21
HOU8:40 pmHouston Hobby
2h 25m
MDW11:05 pmChicago Midway
$167
Southwest
Mar 7
MDW9:40 pmChicago Midway
2h 45m
HOU12:25 amHouston Hobby
Mar 11
HOU6:15 amHouston Hobby
2h 20m
MDW8:35 amChicago Midway
$177

Delta flights from Illinois to Houston

Our best Delta deals on Illinois to Houston flight tickets
Delta
Apr 18
ORD5:59 pmChicago O'Hare Intl
5h 07m
1 stop
HOU11:06 pmHouston Hobby
Apr 21
HOU5:23 pmHouston Hobby
6h 36m
1 stop
ORD11:59 pmChicago O'Hare Intl
$197
Delta
May 9
ORD5:59 pmChicago O'Hare Intl
5h 09m
1 stop
HOU11:08 pmHouston Hobby
May 18
HOU1:16 pmHouston Hobby
5h 19m
1 stop
ORD6:35 pmChicago O'Hare Intl
$207
Delta
May 7
ORD6:00 amChicago O'Hare Intl
6h 11m
1 stop
HOU12:11 pmHouston Hobby
May 20
HOU1:16 pmHouston Hobby
5h 25m
1 stop
ORD6:41 pmChicago O'Hare Intl
$217

momondo 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Illinois to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 5/11

5:25 am-8:32 am

Nonstop3h 07m

Houston George Bush Intcntl

Tue 5/19

5:46 pm-8:25 pm

Nonstop2h 39m

$82

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 2/28

8:05 am-11:29 am

Nonstop3h 24m

Houston George Bush Intcntl

Wed 3/4

3:37 pm-6:18 pm

Nonstop2h 41m

$83

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 3/24

9:45 am-12:41 pm

Nonstop2h 56m

Houston George Bush Intcntl

Tue 3/31

6:14 am-8:50 am

Nonstop2h 36m

$84

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 2/28

8:05 am-11:29 am

Nonstop3h 24m

Houston George Bush Intcntl

Thu 3/5

11:17 am-2:05 pm

Nonstop2h 48m

$86

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Mon 3/9

10:00 am-12:58 pm

Nonstop2h 58m

Houston George Bush Intcntl

Fri 3/13

1:43 pm-4:13 pm

Nonstop2h 30m

$87

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 3/25

9:45 am-12:41 pm

Nonstop2h 56m

Houston George Bush Intcntl

Tue 3/31

6:14 am-8:50 am

Nonstop2h 36m

$91

ChicagoHouston

MDW - HOU

MDWHOU

Chicago Midway

Sat 4/18

6:05 pm-8:50 pm

Nonstop2h 45m

Houston Hobby

Tue 4/21

8:40 pm-11:05 pm

Nonstop2h 25m

$157

ChicagoHouston

MDW - HOU

MDWHOU

Chicago Midway

Sat 4/18

6:05 pm-8:50 pm

Nonstop2h 45m

Houston Hobby

Tue 4/21

8:40 pm-11:05 pm

Nonstop2h 25m

$167

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Sat 4/18

5:59 pm-11:06 pm

1 stop5h 07m

Houston Hobby

Tue 4/21

5:23 pm-11:59 pm

1 stop6h 36m

$197

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Sat 5/9

5:59 pm-11:08 pm

1 stop5h 09m

Houston Hobby

Fri 5/15

1:16 pm-6:35 pm

1 stop5h 19m

$207

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 Houston from

How to get the cheapest flight ticket from Illinois to Houston

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 Houston?

The month of September is, on average, the cheapest month to fly to Houston from Illinois, with most prices found around $177. The month of January is another great option to travel to Houston, with average flight prices from Illinois averaging around $186.

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

On average, the least expensive day to fly to Houston from Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $324. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Sunday is $565.

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

Our data shows that the cheapest Illinois to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $263. Try not to purchase tickets in the morning because they tend to be around $364. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Illinois to Houston flight route?

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

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

You are more likely to see cheaper flights to Houston from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $225 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Illinois for as low as $155 on momondo.

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

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

Cheap Illinois to Houston flight deals and tips

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

Fastest flight time

2h 05m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from Illinois to Houston takes 2h 05m
Direct flights go from Illinois to Houston every day.
There are 2 airports in Houston. From Illinois there are direct flights to Houston George Bush Intcntl (IAH), Houston Hobby (HOU).
Search flight deals

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

    Prices for flights from Illinois to Houston were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Houston.

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

    The travel and health documents required for your trip to Houston can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to Houston

Compare and see reviews for airlines that fly from Illinois to Houston with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $57Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $65Free CancellationRating
6.3
8,444 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $134Free CancellationRating
7.4
9,279 reviews
Search United Airlines flights
American AirlinesPriceFrom $164Free CancellationRating
7.2
11,271 reviews
Search American Airlines flights
SouthwestPriceFrom $188Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
DeltaPriceFrom $203Free CancellationRating
7.9
8,181 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find Illinois to Houston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Houston that suits you.

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

Flights from Illinois to Houston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Illinois to Houston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Houston from Illinois 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.

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