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Cheap flights from Chicago to Houston from $45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Houston departing on 12/14. 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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Cheap round-trip flights

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United Airlines Logo
6:20 pm - 9:23 pm
ORD
-
IAH
3h 03mnonstop
United Airlines Logo
6:30 am - 9:16 am
IAH
-
ORD
2h 46mnonstop
$91United Airlines
Sat, Feb 14 - Tue, Feb 17
Spirit Airlines Logo
9:09 pm - 11:59 pm
ORD
-
IAH
2h 50mnonstop
Spirit Airlines Logo
11:38 am - 2:17 pm
IAH
-
ORD
2h 39mnonstop
$92Spirit Airlines
Thu, Jan 1 - Thu, Jan 8
Frontier Logo
3:02 pm - 6:09 pm
MDW
-
IAH
3h 07mnonstop
Frontier Logo
6:05 pm - 11:25 pm
IAH
-
MDW
5h 20m1 stop
$93Frontier
Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
12:44 pm - 7:24 pm
ORD
-
IAH
6h 40m1 stop
Multiple Airlines Logo
8:36 pm - 11:29 pm
IAH
-
ORD
2h 53mnonstop
$93Multiple Airlines
Fri, Jan 30 - Sun, Feb 1
Frontier Logo
6:00 am - 5:10 pm
MDW
-
IAH
11h 10m1 stop
Frontier Logo
7:09 pm - 9:43 pm
IAH
-
MDW
2h 34mnonstop
$94Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
2:15 pm - 5:23 pm
ORD
-
IAH
3h 08mnonstop
Frontier Logo
6:15 am - 10:22 am
IAH
-
ORD
28h 07m1 stop
$94Frontier
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
10:48 am - 7:24 pm
ORD
-
IAH
8h 36m1 stop
Multiple Airlines Logo
10:26 am - 1:20 pm
IAH
-
ORD
2h 54mnonstop
$95Multiple Airlines
Mon, Jan 12 - Sun, Jan 18
Frontier Logo
6:30 am - 9:31 am
ORD
-
IAH
3h 01mnonstop
Frontier Logo
6:00 am - 12:08 pm
IAH
-
ORD
6h 08m1 stop
$96Frontier
Fri, Jan 16 - Sun, Jan 18
Spirit Airlines Logo
8:43 pm - 8:40 am
ORD
-
IAH
11h 57m1 stop
Spirit Airlines Logo
11:38 am - 2:17 pm
IAH
-
ORD
2h 39mnonstop
$97Spirit Airlines
Thu, Jan 8 - Sun, Jan 11
Spirit Airlines Logo
3:22 pm - 6:22 pm
ORD
-
IAH
3h 00mnonstop
Spirit Airlines Logo
7:35 am - 8:54 pm
IAH
-
ORD
13h 19m1 stop
$98Spirit Airlines
Fri, Jan 23 - Mon, Jan 26

Frontier flights from Chicago to Houston George Bush Intcntl Airport

Our best Frontier deals on Chicago to Houston George Bush Intcntl Airport flight tickets
Frontier
Feb 20
MDW3:02 pmChicago Midway
3h 07m
IAH6:09 pmHouston George Bush Intcntl
Feb 22
IAH6:05 pmHouston George Bush Intcntl
5h 20m
1 stop
MDW11:25 pmChicago Midway
$93
Find similar
Frontier
Feb 19
MDW6:00 amChicago Midway
11h 10m
1 stop
IAH5:10 pmHouston George Bush Intcntl
Feb 23
IAH7:09 pmHouston George Bush Intcntl
2h 34m
MDW9:43 pmChicago Midway
$94
Find similar
Frontier
Jan 16
ORD6:30 amChicago O'Hare Intl
3h 01m
IAH9:31 amHouston George Bush Intcntl
Jan 18
IAH6:00 amHouston George Bush Intcntl
6h 08m
1 stop
ORD12:08 pmChicago O'Hare Intl
$96
Find similar

Spirit Airlines flights from Chicago to Houston George Bush Intcntl Airport

Our best Spirit Airlines deals on Chicago to Houston George Bush Intcntl Airport flight tickets
Spirit Airlines
Jan 1
ORD9:09 pmChicago O'Hare Intl
2h 50m
IAH11:59 pmHouston George Bush Intcntl
Jan 8
IAH11:38 amHouston George Bush Intcntl
2h 39m
ORD2:17 pmChicago O'Hare Intl
$92
Find similar
Spirit Airlines
Jan 23
ORD3:22 pmChicago O'Hare Intl
3h 00m
IAH6:22 pmHouston George Bush Intcntl
Jan 26
IAH7:35 amHouston George Bush Intcntl
13h 19m
1 stop
ORD8:54 pmChicago O'Hare Intl
$98
Find similar
Spirit Airlines
Jan 14
ORD2:18 pmChicago O'Hare Intl
3h 00m
IAH5:18 pmHouston George Bush Intcntl
Jan 15
IAH4:35 pmHouston George Bush Intcntl
7h 11m
1 stop
ORD11:46 pmChicago O'Hare Intl
$99
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Houston George Bush Intcntl Airport 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 December 4, 2025.
Use the filters below to find and compare flights from Chicago to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 2/14

6:20 pm-9:23 pm

Nonstop3h 03m

Houston George Bush Intcntl

Tue 2/17

6:30 am-9:16 am

Nonstop2h 46m

$91

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 1/1

9:09 pm-11:59 pm

Nonstop2h 50m

Houston George Bush Intcntl

Thu 1/8

11:38 am-2:17 pm

Nonstop2h 39m

$92

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Fri 2/20

3:02 pm-6:09 pm

Nonstop3h 07m

Houston George Bush Intcntl

Sun 2/22

6:05 pm-11:25 pm

1 stop5h 20m

$93

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 1/30

12:44 pm-7:24 pm

1 stop6h 40m

Houston George Bush Intcntl

Sun 2/1

8:36 pm-11:29 pm

Nonstop2h 53m

$93

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Thu 2/19

6:00 am-5:10 pm

1 stop11h 10m

Houston George Bush Intcntl

Mon 2/23

7:09 pm-9:43 pm

Nonstop2h 34m

$94

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 2/19

2:15 pm-5:23 pm

Nonstop3h 08m

Houston George Bush Intcntl

Sun 2/22

6:15 am-10:22 am

1 stop28h 07m

$94

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 1/12

10:48 am-7:24 pm

1 stop8h 36m

Houston George Bush Intcntl

Sun 1/18

10:26 am-1:20 pm

Nonstop2h 54m

$95

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 1/16

6:30 am-9:31 am

Nonstop3h 01m

Houston George Bush Intcntl

Sun 1/18

6:00 am-12:08 pm

1 stop6h 08m

$96

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 1/8

8:43 pm-8:40 am

1 stop11h 57m

Houston George Bush Intcntl

Sun 1/11

11:38 am-2:17 pm

Nonstop2h 39m

$97

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 1/23

3:22 pm-6:22 pm

Nonstop3h 00m

Houston George Bush Intcntl

Mon 1/26

7:35 am-8:54 pm

1 stop13h 19m

$98

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 Chicago to Houston George Bush Intcntl Airport

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 typical price of a round-trip flight between Chicago and Houston George Bush Intcntl Airport?

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of October is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Chicago, with most prices found around $153. If you are unable to visit Houston George Bush Intcntl Airport during the month of October, then departing from Chicago during the month August is also very affordable. Most momondo users find prices during this month for around $177.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Chicago to Houston George Bush Intcntl Airport is on a Friday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Friday will often find tickets for as low as $263. 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 George Bush Intcntl Airport on Sunday is $432.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Chicago to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $274. 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 Chicago to Houston George Bush Intcntl flight route?

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

How far in advance should I book a flight to Houston George Bush Intcntl Airport?

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $221 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Chicago for as low as $178 on momondo.

What cabin class options are available on Chicago to Houston George Bush Intcntl flights?

There are 4 cabin classes available to choose from on Chicago to Houston George Bush Intcntl 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 Chicago to Houston George Bush Intcntl Airport flights?

No. A direct flight is the cheapest option for a flight between Chicago to Houston George Bush Intcntl Airport.

How have Chicago to Houston George Bush Intcntl Airport flight prices changed over time?

As of December 2025, prices for Chicago to Houston George Bush Intcntl Airport flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Houston George Bush Intcntl Airport (CHI to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Houston George Bush Intcntl Airport

Best Price Found

$100

Fastest flight time

2h 40m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Chicago in the past 72 hours is $100. The best round-trip flight deal from Chicago to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $127.
The fastest flight from Chicago to Houston George Bush Intcntl Airport takes 2h 40m
Direct flights go from Chicago to Houston George Bush Intcntl Airport every day.
Search flight deals

  • How far is Chicago to Houston George Bush Intcntl by plane?

    Chicago and Houston George Bush Intcntl are 926.3 mi apart from one another. In terms of flight time, this usually takes a little over 2h 45m.

  • When did momondo last update prices for flights from Chicago to Houston George Bush Intcntl Airport?

    Prices for flights from Chicago to Houston George Bush Intcntl Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Houston George Bush Intcntl Airport?

  • How old do you have to be to fly from Chicago to Houston George Bush Intcntl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents you'll need for your trip to Houston George Bush Intcntl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston George Bush Intcntl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Houston George Bush Intcntl Airport?

  • What is the most popular airline from Chicago to Houston George Bush Intcntl Airport?

Best airlines flying from Chicago to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Chicago to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $64Free CancellationRating
5.8
3,092 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $75Free CancellationRating
6.3
8,161 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $157Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $168Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,011 reviews
Search Delta flights

  • United Airlines Flights From Chicago to Houston George Bush Intcntl Airport

    The lowest priced United Airlines flight from Chicago to Houston George Bush Intcntl Airport from the last 72 hours was $168. Generally, United Airlines has 95 flights on this route every week with an average price of $337. United Airlines is rated 7.4/10 by our users.

  • American Airlines Flights From Chicago to Houston George Bush Intcntl Airport

    The best American Airlines deal for Chicago to Houston George Bush Intcntl Airport flight tickets found on momondo in the last 72 hours was $157, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $251 round-trip. American Airlines operates 17 flights out of Chicago into Houston George Bush Intcntl Airport in an average week, so prices vary by time and availability. 11,045 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
Cypress
Humble
Spring
Montgomery
Tomball
Livingston
Jersey Village

Why use momondo?

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

It is quick and easy to find Chicago 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 Chicago to Houston with flexible booking policies on momondo?

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Houston.

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

If you are not ready to book a flight from Chicago to Houston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Houston and let you know when they change.

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