What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Illinois one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $53. However, be on the lookout for offers from Spirit Airlines and United Airlines, as they are both options that can get you from Houston George Bush Intcntl Airport to Illinois for a low price.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Houston George Bush Intcntl Airport to Illinois?

The most popular route from Houston George Bush Intcntl Airport to Illinois is Houston George Bush Intcntl - Chicago O'Hare Intl. You may also consider Houston George Bush Intcntl - Chicago Midway or Houston George Bush Intcntl - Lambert-St Louis.

What are the cheapest flights from Houston George Bush Intcntl Airport to Illinois?

The cheapest flight price from Houston George Bush Intcntl Airport to Illinois is $70. On average you can expect to pay $1,823. The most popular route, (Houston George Bush Intcntl - Chicago O'Hare Intl), can usually be booked for $93.

What are the most reliable airlines from Houston George Bush Intcntl Airport to Illinois?

No one likes to see their flight delayed. When booking a flight from Houston George Bush Intcntl Airport to Illinois consider choosing SkyWest Airlines (100%), Cathay Pacific (85%) or ANA (84%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Houston George Bush Intcntl Airport to Illinois?

Consider American Airlines, Frontier or Spirit Airlines when booking your flight. These represent the most popular airlines when flying from Houston George Bush Intcntl Airport to Illinois.

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

To save up to 72% on this flight, we recommend booking at least 26 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Houston George Bush Intcntl Airport to Illinois from $133 1-2 weeks out and tickets from $264 for flights departing within the next 72 hours.

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

Our data shows that February tends to be the cheapest month to fly to Illinois from Houston George Bush Intcntl Airport. Users have commonly found prices around $187 for the month, but tickets can be as low as $65. Due to multiple factors, prepare for potentially higher prices in June.

Can I find deals for flights from George Bush Intcntl to Illinois that include hotel bookings?

Yes. In addition to deals on George Bush Intcntl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from George Bush Intcntl to Illinois?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Illinois.

Can I find deals for business class flights from George Bush Intcntl to Illinois?

Yes. Cheapflights offers flight deals from George Bush Intcntl to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$53+ Flights from Houston George Bush Intcntl Airport to Illinois

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Cheap flight deals from George Bush Intcntl to Illinois

Round-trip from	$122 (Priceline)
One-way from	$53 (Priceline)
Popular in	June
Cheapest in	February
Average price	$188
Good round-trip deal	$159 or less
Good one-way deal	$87 or less

From Houston George Bush Intcntl to Illinois

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One-way flight from Houston George Bush Intcntl to Illinois

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Highest demand for flights based on searches. 6% potential increase in price ($13 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Houston George Bush Intcntl to Illinois.

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Price to beat on a one-way flight from Houston George Bush Intcntl to Illinois.

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Find flight deals from George Bush Intcntl to Illinois

Cheapest flights from George Bush Intcntl to Illinois
Explore the most affordable flight options available from George Bush Intcntl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

mié. 7/235:15 amIAH - ORD

Nonstop2h 35mSpirit Airlines

sáb. 7/269:10 pmORD - IAH

Nonstop2h 49mSpirit Airlines

Deal found 7/1

$123

vie. 7/257:42 pmIAH - MDW

Nonstop2h 38mFrontier

lun. 7/284:01 pmMDW - IAH

Nonstop2h 57mFrontier

Deal found 7/3

$123

mié. 7/238:00 amIAH - ORD

1 stop8h 04mMultiple Airlines

mié. 8/64:37 pmORD - IAH

Nonstop2h 48mMultiple Airlines

Deal found 7/2

$124

vie. 8/14:41 pmIAH - ORD

1 stop7h 41mFrontier

dom. 8/106:30 amORD - IAH

Nonstop2h 50mFrontier

Deal found 7/1

$132

jue. 10/26:23 amIAH - STL

1 stop7h 12mSpirit Airlines

dom. 10/52:30 pmSTL - IAH

1 stop5h 15mSpirit Airlines

Deal found 7/1

$139

mar. 8/58:56 pmIAH - STL

1 stop26h 51mMultiple Airlines

jue. 8/710:47 amSTL - IAH

1 stop8h 38mMultiple Airlines

Deal found 7/2

$159

jue. 7/316:00 amIAH - STL

1 stop7h 34mFrontier

jue. 8/72:36 pmSTL - IAH

1 stop8h 20mFrontier

Deal found 7/2

$190

jue. 8/77:20 amIAH - STL

Nonstop2h 08mUnited Airlines

lun. 8/116:15 pmSTL - IAH

Nonstop2h 25mUnited Airlines

Deal found 7/3

$197

mié. 9/107:00 amIAH - STL

1 stop5h 31mDelta

mié. 9/176:00 amSTL - IAH

1 stop8h 16mDelta

Deal found 7/2

$217

mié. 8/207:16 pmIAH - RFD

2 stops19h 00mMultiple Airlines

dom. 8/243:06 pmRFD - IAH

2 stops17h 39mMultiple Airlines

Deal found 7/2

$219

vie. 9/262:52 pmIAH - PIA

1 stop8h 19mAmerican Airlines

lun. 9/299:51 amPIA - IAH

1 stop6h 23mAmerican Airlines

Deal found 7/3

$249

mar. 7/810:12 amIAH - MLI

1 stop7h 54mAmerican Airlines

mar. 7/154:22 pmMLI - IAH

1 stop7h 40mAmerican Airlines

Deal found 7/2

$277

Best flights from George Bush Intcntl to Illinois
Discover carefully curated flight deals from George Bush Intcntl to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 3, 2025.

jue. 9/1811:34 amIAH - ORD

1 stop8h 06mFrontier

dom. 9/2111:32 amORD - IAH

1 stop8h 43mFrontier

Deal found 7/3

$122

mié. 7/235:15 amIAH - ORD

Nonstop2h 35mSpirit Airlines

sáb. 7/269:10 pmORD - IAH

Nonstop2h 49mSpirit Airlines

Deal found 7/1

$123

vie. 8/228:28 pmIAH - ORD

Nonstop2h 51mMultiple Airlines

lun. 9/158:56 pmORD - IAH

Nonstop2h 49mMultiple Airlines

Deal found 7/3

$125

jue. 8/77:20 amIAH - STL

Nonstop2h 08mUnited Airlines

lun. 8/116:15 pmSTL - IAH

Nonstop2h 25mUnited Airlines

Deal found 7/3

$197

mié. 9/107:00 amIAH - STL

1 stop5h 31mDelta

mié. 9/176:00 amSTL - IAH

1 stop8h 16mDelta

Deal found 7/2

$217

vie. 7/257:42 pmIAH - MDW

Nonstop2h 38mFrontier

lun. 7/284:01 pmMDW - IAH

Nonstop2h 57mFrontier

Deal found 7/3

$123

vie. 9/262:52 pmIAH - PIA

1 stop8h 19mAmerican Airlines

lun. 9/299:51 amPIA - IAH

1 stop6h 23mAmerican Airlines

Deal found 7/3

$249

jue. 10/26:23 amIAH - STL

1 stop7h 12mSpirit Airlines

dom. 10/52:30 pmSTL - IAH

1 stop5h 15mSpirit Airlines

Deal found 7/1

$139

mar. 8/58:56 pmIAH - STL

1 stop26h 51mMultiple Airlines

jue. 8/710:47 amSTL - IAH

1 stop8h 38mMultiple Airlines

Deal found 7/2

$159

jue. 7/316:00 amIAH - STL

1 stop7h 34mFrontier

jue. 8/72:36 pmSTL - IAH

1 stop8h 20mFrontier

Deal found 7/2

$190

mié. 8/207:16 pmIAH - RFD

2 stops19h 00mMultiple Airlines

dom. 8/243:06 pmRFD - IAH

2 stops17h 39mMultiple Airlines

Deal found 7/2

$219

vie. 7/186:23 pmIAH - MLI

1 stop4h 53mAmerican Airlines

mar. 7/224:22 pmMLI - IAH

1 stop7h 40mAmerican Airlines

Deal found 7/2

$298

Last-minute flights from George Bush Intcntl to Illinois
Discover last-minute flight deals from George Bush Intcntl to Illinois. Data last updated julio 3, 2025 and is based on user searches.

mar. 7/88:56 pmIAH - STL

1 stop26h 51mFrontier

mar. 7/155:40 pmSTL - IAH

1 stop17h 08mFrontier

Deal found 7/1

$258

mar. 7/810:12 amIAH - MLI

1 stop7h 54mAmerican Airlines

mar. 7/154:22 pmMLI - IAH

1 stop7h 40mAmerican Airlines

Deal found 7/2

$277

mar. 7/87:15 pmIAH - STL

2 stops15h 14mSpirit Airlines

mar. 7/155:26 pmSTL - IAH

1 stop15h 26mSpirit Airlines

Deal found 7/1

$377

mié. 7/98:00 amIAH - ORD

1 stop8h 04mMultiple Airlines

mar. 7/228:09 amORD - IAH

1 stop8h 43mMultiple Airlines

Deal found 7/1

$179

jue. 7/108:30 pmIAH - STL

3 stops22h 11mMultiple Airlines

lun. 7/149:50 amSTL - IAH

2 stops8h 41mMultiple Airlines

Deal found 7/1

$368

jue. 7/105:00 amIAH - PIA

1 stop5h 19mUnited Airlines

mar. 7/155:25 pmPIA - IAH

1 stop6h 32mUnited Airlines

Deal found 7/3

$379

vie. 7/117:42 pmIAH - MDW

Nonstop2h 38mFrontier

lun. 7/144:01 pmMDW - IAH

Nonstop2h 57mFrontier

Deal found 7/3

$144

vie. 7/117:21 pmIAH - EVV

1 stop4h 36mAmerican Airlines

mié. 7/165:48 pmEVV - IAH

1 stop4h 03mAmerican Airlines

Deal found 7/2

$467

sáb. 7/1211:37 amIAH - ORD

Nonstop2h 40mSpirit Airlines

mar. 8/59:10 pmORD - IAH

Nonstop2h 49mSpirit Airlines

Deal found 7/1

$165

sáb. 7/126:00 amIAH - ORD

1 stop17h 29mFrontier

dom. 7/136:30 amORD - IAH

Nonstop2h 50mFrontier

Deal found 7/1

$168

sáb. 7/1211:24 amIAH - SPI

1 stop6h 34mAmerican Airlines

mar. 7/151:14 pmSPI - IAH

2 stops10h 48mAmerican Airlines

Deal found 7/3

$452

sáb. 7/123:55 pmIAH - BMI

1 stop6h 31mDelta

mar. 7/154:10 pmBMI - IAH

1 stop7h 41mDelta

Deal found 7/2

$487

One-way flights from George Bush Intcntl to Illinois
Search for one-way flight options from George Bush Intcntl to Illinois. Find affordable one-way fares based on user searches. Data last updated julio 3, 2025.

dom. 8/36:00 amIAH - STL

1 stop7h 34mFrontier

Deal found 7/2

$53

jue. 8/147:00 amIAH - STL

1 stop6h 32mSpirit Airlines

Deal found 7/2

$54

vie. 11/147:23 pmIAH - ORD

Nonstop2h 42mFrontier

Deal found 7/3

$65

vie. 11/149:34 amIAH - MDW

Nonstop2h 32mFrontier

Deal found 7/3

$65

dom. 7/275:15 amIAH - ORD

Nonstop2h 35mSpirit Airlines

Deal found 7/3

$68

lun. 12/155:00 amIAH - ORD

Nonstop2h 41mUnited Airlines

Deal found 7/3

$79

sáb. 7/192:18 pmIAH - MDW

1 stop8h 17mMultiple Airlines

Deal found 7/2

$93

mar. 9/98:00 pmIAH - STL

Nonstop2h 16mUnited Airlines

Deal found 7/3

$99

lun. 11/106:06 amIAH - STL

1 stop5h 38mAmerican Airlines

Deal found 7/3

$108

jue. 11/276:30 amIAH - ORD

1 stop5h 01mDelta

Deal found 7/3

$109

sáb. 8/25:15 amIAH - MDW

1 stop7h 14mDelta

Deal found 7/3

$109

mar. 9/95:31 amIAH - STL

1 stop7h 00mDelta

Deal found 7/3

$109

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

jue. 9/18

11:34 am-7:40 pm

1 stop8h 06m

Chicago O'Hare Intl

dom. 9/21

11:32 am-8:15 pm

1 stop8h 43m

$122

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

mié. 7/23

5:15 am-7:50 am

Nonstop2h 35m

Chicago O'Hare Intl

sáb. 7/26

9:10 pm-11:59 pm

Nonstop2h 49m

$123

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

vie. 7/25

7:42 pm-10:20 pm

Nonstop2h 38m

Chicago Midway

lun. 7/28

4:01 pm-6:58 pm

Nonstop2h 57m

$123

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

vie. 8/22

8:28 pm-11:19 pm

Nonstop2h 51m

Chicago O'Hare Intl

sáb. 9/13

8:56 pm-11:45 pm

Nonstop2h 49m

$125

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

jue. 10/2

6:23 am-1:35 pm

1 stop7h 12m

Lambert-St Louis

dom. 10/5

2:30 pm-7:45 pm

1 stop5h 15m

$139

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

mar. 8/5

8:56 pm-11:47 pm

1 stop26h 51m

Lambert-St Louis

jue. 8/7

10:47 am-7:25 pm

1 stop8h 38m

$159

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

jue. 7/31

6:00 am-1:34 pm

1 stop7h 34m

Lambert-St Louis

jue. 8/7

2:36 pm-10:56 pm

1 stop8h 20m

$190

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

jue. 8/7

7:20 am-9:28 am

Nonstop2h 08m

Lambert-St Louis

lun. 8/11

6:15 pm-8:40 pm

Nonstop2h 25m

$197

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

mié. 9/10

7:00 am-12:31 pm

1 stop5h 31m

Lambert-St Louis

mié. 9/17

6:00 am-2:16 pm

1 stop8h 16m

$217

HoustonChicago

IAH - RFD

IAHRFD

Houston George Bush Intcntl

mié. 8/20

7:16 pm-2:16 pm

2 stops19h 00m

Chicago Greater Rockford

dom. 8/24

3:06 pm-8:45 am

2 stops17h 39m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 50 results

...

Best time to book a flight from George Bush Intcntl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from George Bush Intcntl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Illinois

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Illinois?

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Illinois (average of $245). Flying from Houston George Bush Intcntl Airport to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to IL?

When flying from Houston George Bush Intcntl Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Houston George Bush Intcntl Airport to Illinois

The most flights from IAH to USIL are scheduled on a Thursday (66 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

Reviews of airlines servicing Illinois

See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Spirit Airlines

6.3

Okay

8,086 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,286 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Illinois one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $53. However, be on the lookout for offers from Spirit Airlines and United Airlines, as they are both options that can get you from Houston George Bush Intcntl Airport to Illinois for a low price.
What are the most popular routes from Houston George Bush Intcntl Airport to Illinois?
The most popular route from Houston George Bush Intcntl Airport to Illinois is Houston George Bush Intcntl - Chicago O'Hare Intl. You may also consider Houston George Bush Intcntl - Chicago Midway or Houston George Bush Intcntl - Lambert-St Louis.
What are the most reliable airlines from Houston George Bush Intcntl Airport to Illinois?
No one likes to see their flight delayed. When booking a flight from Houston George Bush Intcntl Airport to Illinois consider choosing SkyWest Airlines (100%), Cathay Pacific (85%) or ANA (84%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Houston George Bush Intcntl Airport to Illinois?
The cheapest flight price from Houston George Bush Intcntl Airport to Illinois is $70. On average you can expect to pay $1,823. The most popular route, (Houston George Bush Intcntl - Chicago O'Hare Intl), can usually be booked for $93.
Can I find deals for flights from George Bush Intcntl to Illinois that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Illinois.
Can I find deals for business class flights from George Bush Intcntl to Illinois?
Yes. Cheapflights offers flight deals from George Bush Intcntl to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Illinois?
Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Illinois (average of $245). Flying from Houston George Bush Intcntl Airport to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from George Bush Intcntl to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$62	Average$158	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$67	Average$160	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$157	Average$383	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$175	Average$397	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$196	Average$346	FlexibilityNo cancel fee	On-timeN/A

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$53+ Cheap flights from George Bush Intcntl (IAH) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from George Bush Intcntl to Illinois

Keep the following information in mind while searching for George Bush Intcntl to Illinois flight deals. Data was last updated julio 3, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from George Bush Intcntl to Illinois

Cheapest flights from George Bush Intcntl to IllinoisExplore the most affordable flight options available from George Bush Intcntl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

Explore the most affordable flight options available from George Bush Intcntl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from George Bush Intcntl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from George Bush Intcntl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Illinois

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Illinois?

What is the cheapest time of day to fly from IAH to IL?

Find hourly flight availability from George Bush Intcntl to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

Weekly flight availability from Houston George Bush Intcntl Airport to Illinois

Reviews of airlines servicing Illinois

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Illinois one-way?

What are the most popular routes from Houston George Bush Intcntl Airport to Illinois?

What are the most reliable airlines from Houston George Bush Intcntl Airport to Illinois?

What are the cheapest flights from Houston George Bush Intcntl Airport to Illinois?

Can I find deals for flights from George Bush Intcntl to Illinois that include hotel bookings?

How can I find direct flights from George Bush Intcntl to Illinois?

Can I find deals for business class flights from George Bush Intcntl to Illinois?

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Illinois?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for George Bush Intcntl to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from George Bush Intcntl to Illinois

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Cheapest flights from George Bush Intcntl to Illinois
Explore the most affordable flight options available from George Bush Intcntl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.