What is the cheapest airline that flies from Houston to Illinois?

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Houston to Illinois

How many flights depart from Houston to Illinois on average per day?

As of November 2024, there are 62 flights per week flying from Houston to Illinois. The most common time of day flights depart is 11:00AM, with 53% of flights taking off at noon.

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

Prices for flights from Houston to Illinois are updated daily.

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

As of November 2024, there are 6 operators available to choose from for flights from Houston to Illinois.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$37 Cheap Flights from Houston to Illinois in 2024/25

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Cheap round-trip flights

These are some of the best round-trip flight deals from Houston to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Houston to Illinois.

Cheap last minute flights

Planning a quick getaway from Houston to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Houston to Illinois

Find recent round-trip train or bus tickets from Houston to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.

9:56 pm - 12:33 amIAH-ORD

2h 37mnonstop

6:56 pm - 9:53 pmORD-IAH

2h 57mnonstop

$92Spirit Airlines

Find Deal

Fri, Dec 6 - Sat, Dec 7

9:56 pm - 12:33 amIAH-ORD

2h 37mnonstop

6:56 pm - 9:53 pmORD-IAH

2h 57mnonstop

$95Spirit Airlines

Find Deal

Sat, Dec 7 - Sat, Dec 14

10:08 pm - 12:45 amIAH-ORD

2h 37mnonstop

10:16 am - 9:47 pmORD-IAH

11h 31m1 stop

$98Frontier

Find Deal

Fri, Dec 6 - Mon, Dec 9

10:08 pm - 12:45 amIAH-ORD

2h 37mnonstop

6:20 am - 9:10 amORD-IAH

2h 50mnonstop

$106Frontier

Find Deal

Fri, Dec 13 - Sun, Dec 15

6:00 am - 8:42 amIAH-ORD

2h 42mnonstop

8:30 pm - 11:32 pmORD-IAH

3h 02mnonstop

$139American Airlines

Find Deal

Sat, Jan 18 - Tue, Jan 21

5:00 pm - 10:20 pmHOU-MDW

5h 20m1 stop

10:57 am - 5:50 pmMDW-HOU

6h 53m1 stop

$216Delta

Find Deal

Sat, Jan 18 - Tue, Jan 21

5:25 am - 12:55 pmIAH-ORD

7h 30m1 stop

5:15 pm - 11:59 pmORD-IAH

6h 44m1 stop

$216Delta

Find Deal

Sun, Jan 12 - Tue, Jan 21

6:10 am - 8:50 amIAH-ORD

2h 40mnonstop

3:15 pm - 6:01 pmORD-IAH

2h 46mnonstop

$237American Airlines

Find Deal

Wed, Dec 4 - Sat, Dec 7

7:22 am - 12:16 pmIAH-STL

4h 54m1 stop

6:15 am - 8:40 amSTL-IAH

2h 25mnonstop

$315United Airlines

Find Deal

Tue, Jan 21 - Thu, Jan 23

6:31 am - 1:48 pmIAH-PIA

7h 17m1 stop

2:25 pm - 9:08 pmPIA-IAH

6h 43m1 stop

$318United Airlines

Find Deal

Mon, Dec 23 - Tue, Dec 31

9:38 am - 12:18 pmIAH-ORD

2h 40mnonstop

$37Spirit Airlines

Find Deal

Sat, Dec 7

9:56 pm - 12:33 amIAH-ORD

2h 37mnonstop

$41Spirit Airlines

Find Deal

Fri, Dec 6

6:16 pm - 12:13 amHOU-MDW

5h 57m1 stop

$49Frontier

Find Deal

Wed, Dec 11

9:40 am - 2:26 pmIAH-ORD

4h 46m1 stop

$50Frontier

Find Deal

Tue, Dec 17

6:30 am - 9:18 amIAH-ORD

2h 48mnonstop

$79United Airlines

Find Deal

Wed, Mar 5

8:40 am - 11:23 amIAH-ORD

2h 43mnonstop

$99United Airlines

Find Deal

Fri, Feb 28

6:00 am - 11:58 amHOU-MDW

5h 58m1 stop

$108Delta

Find Deal

Wed, Dec 18

5:25 am - 1:08 pmIAH-MDW

7h 43m1 stop

$108Delta

Find Deal

Fri, Jan 17

4:55 pm - 7:33 pmIAH-ORD

2h 38mnonstop

$149American Airlines

Find Deal

Wed, Nov 27

6:19 pm - 12:19 amHOU-ORD

6h 00m1 stop

$208American Airlines

Find Deal

Sat, Dec 21

10:52 pm - 10:38 amIAH-ORD

11h 46m1 stop

9:10 pm - 12:04 amORD-IAH

2h 54mnonstop

$141

Find Deal

Tue, Nov 26 - Tue, Dec 3

10:52 pm - 10:38 amIAH-ORD

11h 46m1 stop

9:10 pm - 12:04 amORD-IAH

2h 54mnonstop

$154

Find Deal

Tue, Nov 26 - Thu, Nov 28

2:43 pm - 12:28 amIAH-ORD

9h 45m1 stop

6:33 pm - 9:30 pmORD-IAH

2h 57mnonstop

$184Frontier

Find Deal

Sat, Nov 23 - Tue, Nov 26

2:43 pm - 12:28 amIAH-ORD

9h 45m1 stop

7:30 am - 1:48 pmORD-IAH

6h 18m1 stop

$203Frontier

Find Deal

Sat, Nov 23 - Sat, Nov 30

10:30 pm - 1:09 amIAH-ORD

2h 39mnonstop

7:26 am - 10:16 amORD-IAH

2h 50mnonstop

$206Spirit Airlines

Find Deal

Mon, Nov 25 - Tue, Dec 3

10:30 pm - 1:09 amIAH-ORD

2h 39mnonstop

9:10 pm - 12:04 amORD-IAH

2h 54mnonstop

$213Spirit Airlines

Find Deal

Mon, Nov 25 - Thu, Nov 28

6:02 am - 12:25 pmHOU-ORD

6h 23m1 stop

5:00 am - 11:53 amORD-HOU

6h 53m1 stop

$612American Airlines

Find Deal

Tue, Nov 26 - Tue, Dec 3

6:02 am - 10:56 amHOU-ORD

4h 54m1 stop

5:00 am - 9:42 amORD-HOU

4h 42m1 stop

$616American Airlines

Find Deal

Tue, Nov 26 - Wed, Nov 27

7:45 am - 9:47 amIAH-STL

2h 02mnonstop

11:05 am - 1:23 pmSTL-IAH

2h 18mnonstop

$657United Airlines

Find Deal

Mon, Nov 25 - Tue, Dec 10

8:30 am - 3:39 pmIAH-STL

7h 09m1 stop

8:40 am - 10:58 amSTL-IAH

2h 18mnonstop

$667United Airlines

Find Deal

Fri, Nov 22 - Fri, Dec 6

9:56 pm - 12:33 amIAH-ORD

2h 37mnonstop

6:56 pm - 9:53 pmORD-IAH

2h 57mnonstop

$92Spirit Airlines

Find Deal

Fri, Dec 6 - Sat, Dec 7

9:56 pm - 12:33 amIAH-ORD

2h 37mnonstop

6:56 pm - 9:53 pmORD-IAH

2h 57mnonstop

$95Spirit Airlines

Find Deal

Sat, Dec 7 - Sat, Dec 14

10:08 pm - 12:45 amIAH-ORD

2h 37mnonstop

6:20 am - 9:10 amORD-IAH

2h 50mnonstop

$106Frontier

Find Deal

Fri, Dec 13 - Sun, Dec 15

9:38 pm - 12:15 amIAH-ORD

2h 37mnonstop

6:20 am - 9:10 amORD-IAH

2h 50mnonstop

$108Frontier

Find Deal

Sun, Dec 8 - Mon, Dec 9

6:00 am - 8:42 amIAH-ORD

2h 42mnonstop

8:30 pm - 11:32 pmORD-IAH

3h 02mnonstop

$139American Airlines

Find Deal

Sat, Jan 18 - Tue, Jan 21

11:30 am - 1:55 pmHOU-MDW

2h 25mnonstop

1:40 pm - 4:30 pmMDW-HOU

2h 50mnonstop

$158Southwest

Find Deal

Sat, Jan 18 - Tue, Jan 21

6:55 am - 9:15 amHOU-MDW

2h 20mnonstop

8:30 am - 11:20 amMDW-HOU

2h 50mnonstop

$178Southwest

Find Deal

Tue, Jan 21 - Sun, Jan 26

7:20 am - 10:09 amIAH-ORD

2h 49mnonstop

6:35 pm - 9:42 pmORD-IAH

3h 07mnonstop

$197United Airlines

Find Deal

Thu, Feb 13 - Mon, Feb 17

6:10 am - 8:50 amIAH-ORD

2h 40mnonstop

3:15 pm - 6:01 pmORD-IAH

2h 46mnonstop

$237American Airlines

Find Deal

Wed, Dec 4 - Sat, Dec 7

7:20 am - 10:02 amIAH-ORD

2h 42mnonstop

2:25 pm - 5:24 pmORD-IAH

2h 59mnonstop

$249United Airlines

Find Deal

Wed, Dec 11 - Sat, Dec 14

Spirit Airlines flights from Houston to Illinois

Our best Spirit Airlines deals on Houston to Illinois flight tickets

Spirit Airlines

Dec 6

IAH9:56 pmHouston George Bush Intcntl

2h 37m

ORD12:33 amChicago O'Hare Intl

Dec 7

ORD6:56 pmChicago O'Hare Intl

2h 57m

IAH9:53 pmHouston George Bush Intcntl

$92

Find similar

Spirit Airlines

Dec 7

IAH9:56 pmHouston George Bush Intcntl

2h 37m

ORD12:33 amChicago O'Hare Intl

Dec 14

ORD6:56 pmChicago O'Hare Intl

2h 57m

IAH9:53 pmHouston George Bush Intcntl

$95

Find similar

Spirit Airlines

Dec 6

IAH9:56 pmHouston George Bush Intcntl

2h 37m

ORD12:33 amChicago O'Hare Intl

Dec 8

ORD5:10 amChicago O'Hare Intl

2h 51m

IAH8:01 amHouston George Bush Intcntl

$96

Find similar

Frontier flights from Houston to Illinois

Our best Frontier deals on Houston to Illinois flight tickets

Frontier

Dec 6

IAH10:08 pmHouston George Bush Intcntl

2h 37m

ORD12:45 amChicago O'Hare Intl

Dec 9

ORD10:16 amChicago O'Hare Intl

11h 31m

1 stop

IAH9:47 pmHouston George Bush Intcntl

$98

Find similar

Frontier

Dec 13

IAH10:08 pmHouston George Bush Intcntl

2h 37m

ORD12:45 amChicago O'Hare Intl

Dec 15

ORD6:20 amChicago O'Hare Intl

2h 50m

IAH9:10 amHouston George Bush Intcntl

$106

Find similar

Frontier

Dec 6

IAH8:15 pmHouston George Bush Intcntl

2h 30m

MDW10:45 pmChicago Midway

Dec 9

MDW2:55 pmChicago Midway

5h 43m

1 stop

IAH8:38 pmHouston George Bush Intcntl

$107

Find similar

How to get the cheapest flight ticket from Houston to Illinois

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

Prices

Airlines

Other information

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

The cheapest day to depart from Houston to Illinois is on a Saturday when prices can be found for as low as $167. Flights from Houston to Illinois on a Monday will generally be more expensive and average around $230. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Houston to Illinois flight route?

Fly from Houston George Bush Intcntl to Chicago Midway for the best Houston - Illinois flight prices

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

There are 4 cabin classes available to choose from on Houston to Illinois 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 Houston to Illinois flights?

You could potentially save up to 17% on your flight if you consider stops on a Houston to Illinois flight.

Cheap Houston to Illinois flight deals and tips

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

Best Price Found	$37
Fastest flight time	1h 55m
Direct flights	Every day
Airports in Illinois	3 airports

The best one-way flight to Illinois from Houston in the past 72 hours is $37. The best round-trip flight deal from Houston to Illinois found on momondo in the last 72 hours is $92.

The fastest flight from Houston to Illinois takes 1h 55m

Direct flights go from Houston to Illinois every day.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Houston to Illinois?
Prices for flights from Houston to Illinois are updated daily.
How many operators does momondo search for flights from Houston to Illinois?
As of November 2024, there are 6 operators available to choose from for flights from Houston to Illinois.
How old do you have to be to fly from Houston to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Houston to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to Illinois

Compare and see reviews for airlines that fly from Houston to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $45	Free Cancellation	Rating 6.1 3,536 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $62	Free Cancellation	Rating 6.3 8,169 reviews	Search Spirit Airlines flights
United Airlines	PriceFrom $138	Free Cancellation	Rating 7.4 9,172 reviews	Search United Airlines flights
American Airlines	PriceFrom $144	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $190	Free Cancellation	Rating 8.1 5,005 reviews	Search Southwest flights
Delta	PriceFrom $196	Free Cancellation	Rating 8.0 8,755 reviews	Search Delta flights

Why use momondo?

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

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

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Houston.

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

Yes momondo offers price alerts on flights to Illinois from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.