Latest deals
Insights
FAQs
Reviews
Price Alerts

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.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:25 am - 8:32 am
ORD
-
IAH
3h 07mnonstop
Frontier Logo
11:32 am - 2:22 pm
IAH
-
ORD
2h 50mnonstop
$82Frontier
Fri, Apr 24 - Sat, Apr 25
Frontier Logo
3:00 pm - 6:06 pm
MDW
-
IAH
3h 06mnonstop
Frontier Logo
10:30 am - 1:08 pm
IAH
-
MDW
2h 38mnonstop
$83Frontier
Fri, Feb 20 - Mon, Feb 23
Spirit Airlines Logo
9:18 am - 12:24 pm
ORD
-
IAH
3h 06mnonstop
Spirit Airlines Logo
6:14 am - 8:50 am
IAH
-
ORD
2h 36mnonstop
$83Spirit Airlines
Wed, Mar 4 - Wed, Mar 25
Multiple Airlines Logo
7:00 am - 10:22 am
ORD
-
IAH
3h 22mnonstop
Multiple Airlines Logo
5:15 am - 7:54 am
IAH
-
ORD
2h 39mnonstop
$84Multiple Airlines
Thu, Feb 26 - Sat, Mar 7
Multiple Airlines Logo
8:05 am - 11:29 am
ORD
-
IAH
3h 24mnonstop
Multiple Airlines Logo
5:15 am - 7:54 am
IAH
-
ORD
2h 39mnonstop
$85Multiple Airlines
Sat, Feb 21 - Sun, Mar 1
Spirit Airlines Logo
8:59 am - 12:00 pm
ORD
-
IAH
3h 01mnonstop
Spirit Airlines Logo
3:37 pm - 6:18 pm
IAH
-
ORD
2h 41mnonstop
$89Spirit Airlines
Sat, Feb 21 - Tue, Feb 24
Delta Logo
5:15 pm - 11:59 pm
MLI
-
IAH
6h 44m
1 stop
Delta Logo
4:56 pm - 10:30 pm
IAH
-
MLI
5h 34m
1 stop
$203Delta
Wed, Mar 25 - Tue, Mar 31
Delta Logo
5:15 pm - 11:59 pm
MLI
-
IAH
6h 44m
1 stop
Delta Logo
2:59 pm - 10:30 pm
IAH
-
MLI
7h 31m
1 stop
$231Delta
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
6:00 am - 11:52 am
CMI
-
IAH
5h 52m
1 stop
United Airlines Logo
5:09 am - 12:48 pm
IAH
-
CMI
7h 39m
1 stop
$258United Airlines
Thu, Apr 30 - Sun, May 3
United Airlines Logo
3:20 pm - 9:21 pm
MLI
-
IAH
6h 01m
1 stop
United Airlines Logo
5:00 am - 9:58 am
IAH
-
MLI
4h 58m
1 stop
$260United Airlines
Tue, Mar 31 - Sat, Apr 4

Frontier flights from Illinois to Houston George Bush Intcntl Airport

Our best Frontier deals on Illinois to Houston George Bush Intcntl Airport flight tickets
Frontier
Apr 24
ORD5:25 amChicago O'Hare Intl
3h 07m
IAH8:32 amHouston George Bush Intcntl
Apr 25
IAH11:32 amHouston George Bush Intcntl
2h 50m
ORD2:22 pmChicago O'Hare Intl
$82
Frontier
Feb 20
MDW3:00 pmChicago Midway
3h 06m
IAH6:06 pmHouston George Bush Intcntl
Feb 23
IAH10:30 amHouston George Bush Intcntl
2h 38m
MDW1:08 pmChicago Midway
$83
Frontier
Feb 23
MDW6:45 amChicago Midway
3h 00m
IAH9:45 amHouston George Bush Intcntl
Feb 27
IAH6:51 pmHouston George Bush Intcntl
2h 38m
MDW9:29 pmChicago Midway
$84

Spirit Airlines flights from Illinois to Houston George Bush Intcntl Airport

Our best Spirit Airlines deals on Illinois to Houston George Bush Intcntl Airport flight tickets
Spirit Airlines
Mar 4
ORD9:18 amChicago O'Hare Intl
3h 06m
IAH12:24 pmHouston George Bush Intcntl
Mar 25
IAH6:14 amHouston George Bush Intcntl
2h 36m
ORD8:50 amChicago O'Hare Intl
$83
Spirit Airlines
Feb 21
ORD8:59 amChicago O'Hare Intl
3h 01m
IAH12:00 pmHouston George Bush Intcntl
Feb 24
IAH3:37 pmHouston George Bush Intcntl
2h 41m
ORD6:18 pmChicago O'Hare Intl
$89
Spirit Airlines
Feb 11
ORD3:22 pmChicago O'Hare Intl
3h 00m
IAH6:22 pmHouston George Bush Intcntl
Feb 14
IAH5:15 amHouston George Bush Intcntl
2h 39m
ORD7:54 amChicago O'Hare Intl
$90

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 February 5, 2026.
Use the filters below to find and compare flights from Illinois 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

Fri 4/24

5:25 am-8:32 am

Nonstop3h 07m

Houston George Bush Intcntl

Sat 4/25

11:32 am-2:22 pm

Nonstop2h 50m

$82

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Fri 2/20

3:00 pm-6:06 pm

Nonstop3h 06m

Houston George Bush Intcntl

Mon 2/23

10:30 am-1:08 pm

Nonstop2h 38m

$83

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 3/4

9:18 am-12:24 pm

Nonstop3h 06m

Houston George Bush Intcntl

Wed 3/25

6:14 am-8:50 am

Nonstop2h 36m

$83

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 2/26

7:00 am-10:22 am

Nonstop3h 22m

Houston George Bush Intcntl

Sat 3/7

5:15 am-7:54 am

Nonstop2h 39m

$84

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 2/21

8:05 am-11:29 am

Nonstop3h 24m

Houston George Bush Intcntl

Sun 3/1

5:15 am-7:54 am

Nonstop2h 39m

$85

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 2/21

8:59 am-12:00 pm

Nonstop3h 01m

Houston George Bush Intcntl

Tue 2/24

3:37 pm-6:18 pm

Nonstop2h 41m

$89

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

Wed 3/25

5:15 pm-11:59 pm

1 stop6h 44m

Houston George Bush Intcntl

Tue 3/31

4:56 pm-10:30 pm

1 stop5h 34m

$203

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

Wed 3/18

5:15 pm-11:59 pm

1 stop6h 44m

Houston George Bush Intcntl

Tue 3/24

2:59 pm-10:30 pm

1 stop7h 31m

$231

ChampaignHouston

CMI - IAH

CMIIAH

Champaign University-Willard

Thu 4/30

6:00 am-11:52 am

1 stop5h 52m

Houston George Bush Intcntl

Sun 5/3

5:09 am-12:48 pm

1 stop7h 39m

$258

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

Tue 3/31

3:20 pm-9:21 pm

1 stop6h 01m

Houston George Bush Intcntl

Sat 4/4

5:00 am-9:58 am

1 stop4h 58m

$260

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Houston from

How to get the cheapest flight ticket from Illinois 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 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 Illinois, with most prices found around $157. If you are unable to visit Houston George Bush Intcntl Airport during the month of October, then departing from Illinois 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 Illinois 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 $261. 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 $409.

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

Our data shows that the cheapest Illinois 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 $255. Try not to purchase tickets in the morning because they tend to be around $359. 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 George Bush Intcntl flight route?

Fly from Chicago O'Hare Intl to Houston George Bush Intcntl for the best Illinois - 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 Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $220 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 Illinois for as low as $168 on momondo.

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

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

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

Cheap Illinois to Houston George Bush Intcntl Airport flight deals and tips

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

Best Price Found

$105

Fastest flight time

2h 16m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Illinois in the past 72 hours is $105. The best round-trip flight deal from Illinois to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $142.
The fastest flight from Illinois to Houston George Bush Intcntl Airport takes 2h 16m
Direct flights go from Illinois to Houston George Bush Intcntl Airport every day.
Search flight deals

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

    Prices for flights from Illinois to Houston George Bush Intcntl Airport were last updated today.

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

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

    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 George Bush Intcntl Airport.

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

    The travel and health documents required for your trip to Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Illinois to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Illinois to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $58Free CancellationRating
5.7
3,053 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $66Free CancellationRating
6.3
8,419 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
9,240 reviews
Search United Airlines flights
American AirlinesPriceFrom $164Free CancellationRating
7.2
11,237 reviews
Search American Airlines flights
DeltaPriceFrom $207Free CancellationRating
7.9
8,151 reviews
Search Delta flights

Traveling to a place near Houston?

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

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Houston from Illinois with this policy.

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.

An easier way to manage your Houston George Bush Intcntl Airport 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 3/7
Sat 3/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston