Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Houston from $61

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 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
11:07 am - 4:54 pm
ORD
-
IAH
5h 47m
1 stop
Frontier Logo
11:32 am - 2:22 pm
IAH
-
ORD
2h 50mnonstop
$115Frontier
mar., abr. 28 - sáb., may. 2
Frontier Logo
5:20 am - 8:27 am
ORD
-
IAH
3h 07mnonstop
Frontier Logo
8:12 pm - 11:01 pm
IAH
-
ORD
2h 49mnonstop
$116Frontier
lun., abr. 27 - jue., may. 7
Multiple Airlines Logo
8:25 am - 11:32 am
ORD
-
IAH
3h 07mnonstop
Multiple Airlines Logo
2:29 pm - 5:11 pm
IAH
-
ORD
2h 42mnonstop
$117Multiple Airlines
mié., abr. 15 - mié., abr. 15
Multiple Airlines Logo
8:25 am - 11:32 am
ORD
-
IAH
3h 07mnonstop
Multiple Airlines Logo
2:29 pm - 5:11 pm
IAH
-
ORD
2h 42mnonstop
$123Multiple Airlines
mar., abr. 21 - mar., abr. 21
Delta Logo
5:11 pm - 11:59 pm
MLI
-
IAH
6h 48m
1 stop
Delta Logo
4:59 pm - 10:35 pm
IAH
-
MLI
5h 36m
1 stop
$243Delta
mié., abr. 22 - sáb., abr. 25
American Airlines Logo
7:00 am - 2:31 pm
MLI
-
IAH
7h 31m
1 stop
American Airlines Logo
5:00 am - 12:21 pm
IAH
-
MLI
7h 21m
2 stops
$248American Airlines
mié., abr. 22 - mar., abr. 28
American Airlines Logo
12:51 pm - 10:29 pm
MLI
-
IAH
9h 38m
2 stops
American Airlines Logo
5:00 am - 12:21 pm
IAH
-
MLI
7h 21m
2 stops
$253American Airlines
mié., abr. 29 - sáb., may. 2
United Airlines Logo
5:49 pm - 11:21 pm
MLI
-
IAH
5h 32m
1 stop
United Airlines Logo
5:00 am - 9:58 am
IAH
-
MLI
4h 58m
1 stop
$286United Airlines
sáb., abr. 25 - dom., abr. 26
Delta Logo
4:20 pm - 11:59 pm
BMI
-
IAH
7h 39m
1 stop
Delta Logo
9:43 am - 3:37 pm
IAH
-
BMI
5h 54m
1 stop
$291Delta
mar., abr. 21 - mar., abr. 28
United Airlines Logo
2:50 pm - 8:20 pm
PIA
-
IAH
5h 30m
1 stop
United Airlines Logo
6:15 am - 12:36 pm
IAH
-
PIA
6h 21m
1 stop
$291United Airlines
mar., abr. 21 - mar., abr. 28

Delta flights from Illinois to Houston George Bush Intcntl Airport

Our best Delta deals on Illinois to Houston George Bush Intcntl Airport flight tickets
Delta
Apr 22
MLI5:11 pmMoline Quad-City
6h 48m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Apr 25
IAH4:59 pmHouston George Bush Intcntl
5h 36m
1 stop
MLI10:35 pmMoline Quad-City
$243
Delta
Apr 21
BMI4:20 pmBloomington-Normal
7h 39m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Apr 28
IAH9:43 amHouston George Bush Intcntl
5h 54m
1 stop
BMI3:37 pmBloomington-Normal
$291
Delta
Apr 21
BMI4:20 pmBloomington-Normal
7h 39m
1 stop
IAH11:59 pmHouston George Bush Intcntl
Apr 28
IAH11:51 amHouston George Bush Intcntl
10h 30m
2 stops
BMI10:21 pmBloomington-Normal
$296

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
May 7
ORD6:16 pmChicago O'Hare Intl
2h 54m
IAH9:10 pmHouston George Bush Intcntl
May 11
IAH2:29 pmHouston George Bush Intcntl
2h 42m
ORD5:11 pmChicago O'Hare Intl
$123
Spirit Airlines
Apr 25
ORD6:16 pmChicago O'Hare Intl
2h 54m
IAH9:10 pmHouston George Bush Intcntl
May 2
IAH12:35 pmHouston George Bush Intcntl
8h 37m
1 stop
ORD9:12 pmChicago O'Hare Intl
$136
Spirit Airlines
May 8
ORD6:16 pmChicago O'Hare Intl
2h 54m
IAH9:10 pmHouston George Bush Intcntl
May 10
IAH12:16 pmHouston George Bush Intcntl
12h 11m
1 stop
ORD12:27 amChicago O'Hare Intl
$139

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 marzo 24, 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

Cheapest round-trip

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

mar. 4/28

11:07 am-4:54 pm

1 stop5h 47m

Houston George Bush Intcntl

sáb. 5/2

11:32 am-2:22 pm

Nonstop2h 50m

$115

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

lun. 4/27

5:20 am-8:27 am

Nonstop3h 07m

Houston George Bush Intcntl

jue. 5/7

8:12 pm-11:01 pm

Nonstop2h 49m

$116
Quickest round-trip

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

mié. 4/15

8:25 am-11:32 am

Nonstop3h 07m

Houston George Bush Intcntl

mié. 4/15

2:29 pm-5:11 pm

Nonstop2h 42m

$117

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

mar. 4/21

8:25 am-11:32 am

Nonstop3h 07m

Houston George Bush Intcntl

mar. 4/21

2:29 pm-5:11 pm

Nonstop2h 42m

$123

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

mié. 4/22

5:11 pm-11:59 pm

1 stop6h 48m

Houston George Bush Intcntl

sáb. 4/25

4:59 pm-10:35 pm

1 stop5h 36m

$243

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

mié. 4/22

7:00 am-2:31 pm

1 stop7h 31m

Houston George Bush Intcntl

mar. 4/28

5:00 am-12:21 pm

2 stops7h 21m

$248

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

mié. 4/29

12:51 pm-10:29 pm

2 stops9h 38m

Houston George Bush Intcntl

sáb. 5/2

5:00 am-12:21 pm

2 stops7h 21m

$253

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

sáb. 4/25

5:49 pm-11:21 pm

1 stop5h 32m

Houston George Bush Intcntl

dom. 4/26

5:00 am-9:58 am

1 stop4h 58m

$286

BloomingtonHouston

BMI - IAH

BMIIAH

Bloomington-Normal

mar. 4/21

4:20 pm-11:59 pm

1 stop7h 39m

Houston George Bush Intcntl

mar. 4/28

9:43 am-3:37 pm

1 stop5h 54m

$291

PeoriaHouston

PIA - IAH

PIAIAH

Greater Peoria

mar. 4/21

2:50 pm-8:20 pm

1 stop5h 30m

Houston George Bush Intcntl

mar. 4/28

6:15 am-12:36 pm

1 stop6h 21m

$291

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 $156. 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 $270. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $410.

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 $264. Try not to purchase tickets in the morning because they tend to be around $356. 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 $229 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 $170 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

$135

Fastest flight time

2h 15m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Illinois in the past 72 hours is $135. The best round-trip flight deal from Illinois to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $237.
The fastest flight from Illinois to Houston George Bush Intcntl Airport takes 2h 15m
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
3,018 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $71Free CancellationRating
6.3
8,536 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $164Free CancellationRating
7.1
11,492 reviews
Search American Airlines flights
United AirlinesPriceFrom $166Free CancellationRating
7.4
9,467 reviews
Search United Airlines flights
DeltaPriceFrom $199Free CancellationRating
7.9
8,319 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
Humble
Cypress
Spring
Montgomery
Jersey Village
Tomball
Livingston

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
jue. 4/23
jue. 4/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston