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Cheap flights from Illinois to Houston from $49

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:11 pm - 5:21 pmORD  Chicago O'Hare Intl-IAH Houston George Bush Intcntl
3h 10mnonstop
Frontier Logo
5:06 pm - 7:59 pmIAH  Houston George Bush Intcntl-ORD Chicago O'Hare Intl
2h 53mnonstop
$126Frontier
Wed, Nov 11 - Sun, Nov 15
Frontier Logo
1:06 pm - 4:11 pmORD  Chicago O'Hare Intl-IAH Houston George Bush Intcntl
3h 05mnonstop
Frontier Logo
5:06 pm - 7:59 pmIAH  Houston George Bush Intcntl-ORD Chicago O'Hare Intl
2h 53mnonstop
$126Frontier
Thu, Nov 12 - Sun, Nov 15
Southwest Logo
5:05 am - 7:10 amSTL  Lambert-St Louis-HOU Houston Hobby
2h 05mnonstop
Southwest Logo
8:25 pm - 10:30 pmHOU  Houston Hobby-STL Lambert-St Louis
2h 05mnonstop
$217Southwest
Thu, Oct 22 - Thu, Oct 22
Southwest Logo
9:45 pm - 11:50 pmSTL  Lambert-St Louis-HOU Houston Hobby
2h 05mnonstop
Southwest Logo
11:05 am - 1:05 pmHOU  Houston Hobby-STL Lambert-St Louis
2h 00mnonstop
$217Southwest
Thu, Nov 5 - Tue, Nov 10
United Airlines Logo
6:15 am - 8:27 amSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 12mnonstop
United Airlines Logo
6:05 pm - 8:16 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 11mnonstop
$217United Airlines
Thu, Oct 22 - Sat, Oct 24
United Airlines Logo
11:10 am - 1:25 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
2h 15mnonstop
United Airlines Logo
8:15 pm - 10:30 pmIAH  Houston George Bush Intcntl-STL Lambert-St Louis
2h 15mnonstop
$217United Airlines
Wed, Oct 7 - Tue, Oct 13
American Airlines Logo
5:43 am - 11:01 amSTL  Lambert-St Louis-HOU Houston Hobby
5h 18m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 12:02 pmHOU  Houston Hobby-STL Lambert-St Louis
6h 02m1 stop Dallas/Fort Worth
$237American Airlines
Sat, Oct 3 - Sat, Oct 10
American Airlines Logo
7:10 pm - 11:59 pmSTL  Lambert-St Louis-IAH Houston George Bush Intcntl
4h 49m1 stop Dallas/Fort Worth
American Airlines Logo
6:52 pm - 12:19 amIAH  Houston George Bush Intcntl-STL Lambert-St Louis
5h 27m1 stop Chicago O'Hare Intl
$237American Airlines
Tue, Oct 13 - Mon, Oct 19
Delta Logo
12:00 pm - 4:25 pmSTL  Lambert-St Louis-HOU Houston Hobby
4h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:09 am - 1:20 pmHOU  Houston Hobby-STL Lambert-St Louis
7h 11m1 stop Atlanta Hartsfield-Jackson
$237Delta
Mon, Oct 5 - Thu, Oct 15
Delta Logo
5:38 pm - 11:03 pmSTL  Lambert-St Louis-HOU Houston Hobby
5h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:09 am - 1:20 pmHOU  Houston Hobby-STL Lambert-St Louis
7h 11m1 stop Atlanta Hartsfield-Jackson
$237Delta
Sat, Oct 10 - Thu, Oct 15

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Southwest flights from Illinois to Houston

Our best Southwest deals on Illinois to Houston flight tickets
Southwest
Oct 7
STL8:45 pmLambert-St Louis
2h 05m
HOU10:50 pmHouston Hobby
Oct 13
HOU11:30 amHouston Hobby
2h 00m
STL1:30 pmLambert-St Louis
$217
Southwest
Oct 22
STL5:25 amLambert-St Louis
4h 20m
1 stop
HOU9:45 amHouston Hobby
Oct 22
HOU8:25 pmHouston Hobby
2h 05m
STL10:30 pmLambert-St Louis
$223
Southwest
Oct 7
STL8:40 amLambert-St Louis
2h 05m
HOU10:45 amHouston Hobby
Oct 13
HOU4:30 pmHouston Hobby
3h 25m
1 stop
STL7:55 pmLambert-St Louis
$227

American Airlines flights from Illinois to Houston

Our best American Airlines deals on Illinois to Houston flight tickets
American Airlines
Nov 7
MLI11:20 amMoline Quad-City
5h 27m
1 stop
IAH4:47 pmHouston George Bush Intcntl
Nov 11
IAH5:11 pmHouston George Bush Intcntl
6h 56m
1 stop
MLI12:07 amMoline Quad-City
$253
American Airlines
Nov 7
MLI11:20 amMoline Quad-City
5h 27m
1 stop
IAH4:47 pmHouston George Bush Intcntl
Nov 11
IAH5:11 pmHouston George Bush Intcntl
6h 56m
1 stop
MLI12:07 amMoline Quad-City
$260
American Airlines
Nov 7
MLI11:20 amMoline Quad-City
9h 14m
2 stops
IAH8:34 pmHouston George Bush Intcntl
Nov 11
IAH9:11 amHouston George Bush Intcntl
7h 17m
1 stop
MLI4:28 pmMoline Quad-City
$265

momondo Fare Finder

 
Use the filters below to find and compare flights from Illinois to Houston that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

ChicagoHouston

ORD Chicago O'Hare Intl - IAH Houston George Bush Intcntl

ORDIAH

Chicago O'Hare Intl

Wed 11/11

2:11 pm-5:21 pm

Nonstop3h 10m

Houston George Bush Intcntl

Sun 11/15

5:06 pm-7:59 pm

Nonstop2h 53m

$126

ChicagoHouston

ORD Chicago O'Hare Intl - IAH Houston George Bush Intcntl

ORDIAH

Chicago O'Hare Intl

Thu 11/12

1:06 pm-4:11 pm

Nonstop3h 05m

Houston George Bush Intcntl

Sun 11/15

5:06 pm-7:59 pm

Nonstop2h 53m

$126

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Thu 10/22

5:05 am-7:10 am

Nonstop2h 05m

Houston Hobby

Thu 10/22

8:25 pm-10:30 pm

Nonstop2h 05m

$217
Quickest round-trip

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Thu 11/5

9:45 pm-11:50 pm

Nonstop2h 05m

Houston Hobby

Tue 11/10

11:05 am-1:05 pm

Nonstop2h 00m

$217

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Thu 10/22

6:15 am-8:27 am

Nonstop2h 12m

Houston George Bush Intcntl

Sat 10/24

6:05 pm-8:16 pm

Nonstop2h 11m

$217

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Wed 10/7

11:10 am-1:25 pm

Nonstop2h 15m

Houston George Bush Intcntl

Tue 10/13

8:15 pm-10:30 pm

Nonstop2h 15m

$217

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Sat 10/3

5:43 am-11:01 am

1 stop5h 18m

Houston Hobby

Sat 10/10

6:00 am-12:02 pm

1 stop6h 02m

$237

St. LouisHouston

STL Lambert-St Louis - IAH Houston George Bush Intcntl

STLIAH

Lambert-St Louis

Tue 10/13

7:10 pm-11:59 pm

1 stop4h 49m

Houston George Bush Intcntl

Mon 10/19

6:52 pm-12:19 am

1 stop5h 27m

$237

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Mon 10/5

12:00 pm-4:25 pm

1 stop4h 25m

Houston Hobby

Thu 10/15

6:09 am-1:20 pm

1 stop7h 11m

$237

St. LouisHouston

STL Lambert-St Louis - HOU Houston Hobby

STLHOU

Lambert-St Louis

Sat 10/10

5:38 pm-11:03 pm

1 stop5h 25m

Houston Hobby

Thu 10/15

6:09 am-1:20 pm

1 stop7h 11m

$237

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 October is, on average, the cheapest month to fly to Houston from Illinois, with most prices found around $220. The month of January is another great option to travel to Houston, with average flight prices from Illinois averaging around $220.

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 $353. However, this price may fluctuate depending on the airline, the season, and holidays. 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 on Monday is $508.

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 at noon. Our users have found flights to Houston at noon for as low as $328. Try not to purchase tickets in the morning because they tend to be around $406. 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 from Illinois 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 $258 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 $207 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

Best Price Found

$49

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Houston

2 airports
The best one-way flight to Houston from Illinois in the past 72 hours is $49. The best round-trip flight deal from Illinois to Houston found on momondo in the last 72 hours is $126.
The fastest flight from Illinois to Houston takes 2h 00m
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

Frequently asked questions about flying from Illinois to Houston

  • 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 $60Free CancellationRating
5.6
2,607 reviews
Search Frontier flights
United AirlinesPriceFrom $139Free CancellationRating
7.4
10,206 reviews
Search United Airlines flights
American AirlinesPriceFrom $165Free CancellationRating
7.1
12,050 reviews
Search American Airlines flights
DeltaPriceFrom $202Free CancellationRating
7.8
8,563 reviews
Search Delta flights
JetBluePriceFrom $203Free CancellationRating
7.1
3,040 reviews
Search JetBlue flights
SouthwestPriceFrom $209Free CancellationRating
8.0
4,192 reviews
Search Southwest 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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