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George Bush Intcntl

$66+ Cheap flights from Illinois to George Bush Intcntl (IAH)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
Apr 1 — Apr 81
Tue 4/1
Tue 4/8
1 adult, Economy
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Cheap flight deals from Illinois to George Bush Intcntl

Keep the following information in mind while searching for Illinois to George Bush Intcntl flight deals. Data was last updated March 27, 2025.

Round-trip from

$106
(Cheapflightsfares)

One-way from

$66
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$277

Good round-trip deal

$128 or less

Good one-way deal

$64 or less
From Illinois to Houston George Bush Intcntl
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One-way flight from Illinois to Houston George Bush Intcntl
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Highest demand for flights based on searches. 11% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Illinois to Houston George Bush Intcntl.
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Price to beat on a one-way flight from Illinois to Houston George Bush Intcntl.
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Find flight deals from Illinois to George Bush Intcntl

Cheapest flights from Illinois to George Bush Intcntl
Explore the most affordable flight options available from Illinois to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:47 pmORD - IAH
1 stop12h 09mSpirit Airlines
Wed 4/304:35 pmIAH - ORD
1 stop7h 45mSpirit Airlines
Deal found 3/26$106
This Justfly.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:30 amORD - IAH
Nonstop3h 06mMultiple Airlines
Sat 4/197:55 amIAH - ORD
Nonstop2h 45mMultiple Airlines
Deal found 3/26$123
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/96:00 amMDW - IAH
Nonstop2h 51mFrontier
Wed 4/169:41 amIAH - MDW
Nonstop2h 29mFrontier
Deal found 3/26$137
This Frontier deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/87:20 amORD - IAH
Nonstop2h 59mFrontier
Tue 4/1511:19 amIAH - ORD
Nonstop2h 46mFrontier
Deal found 3/26$138
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/246:15 amSTL - IAH
Nonstop2h 17mUnited Airlines
Thu 5/16:37 amIAH - STL
1 stop5h 43mUnited Airlines
Deal found 3/26$187
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/239:50 pmORD - IAH
Nonstop3h 01mUnited Airlines
Wed 4/309:33 pmIAH - ORD
Nonstop2h 42mUnited Airlines
Deal found 3/26$188
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:10 amSTL - IAH
1 stop6h 36mDelta
Tue 4/297:05 amIAH - STL
1 stop4h 40mDelta
Deal found 3/26$197
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/283:53 pmPIA - IAH
1 stop6h 46mUnited Airlines
Sat 5/315:05 amIAH - PIA
1 stop5h 16mUnited Airlines
Deal found 3/26$199
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/276:00 amMLI - IAH
1 stop7h 39mDelta
Tue 6/311:45 amIAH - MLI
1 stop4h 49mDelta
Deal found 3/26$217
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:00 amMDW - IAH
1 stop6h 09mDelta
Sat 7/195:25 amIAH - MDW
1 stop7h 05mDelta
Deal found 3/26$217
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:00 amORD - IAH
1 stop4h 56mDelta
Wed 7/231:15 pmIAH - ORD
1 stop8h 06mDelta
Deal found 3/26$217
This Mytrip deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:10 pmSTL - IAH
2 stops24h 45mSpirit Airlines
Tue 4/295:30 amIAH - STL
1 stop11h 45mSpirit Airlines
Deal found 3/26$221

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to George Bush Intcntl 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, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2025.
Use the filters below to find and compare flights from Illinois to Houston George Bush Intcntl Airport that are best for you.

Fly from

Illinois

Fly to

George Bush Intcntl

Route

Depart

Return

Price

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 4/22

7:47 pm-7:56 am

1 stop12h 09m

Houston George Bush Intcntl

Wed 4/30

4:35 pm-12:20 am

1 stop7h 45m

$106

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 4/17

6:30 am-9:36 am

Nonstop3h 06m

Houston George Bush Intcntl

Sat 4/19

7:55 am-10:40 am

Nonstop2h 45m

$123

ChicagoHouston

MDW - IAH

MDWIAH

Chicago Midway

Wed 4/9

6:00 am-8:51 am

Nonstop2h 51m

Houston George Bush Intcntl

Wed 4/16

9:41 am-12:10 pm

Nonstop2h 29m

$137

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 4/8

7:20 am-10:19 am

Nonstop2h 59m

Houston George Bush Intcntl

Tue 4/15

11:19 am-2:05 pm

Nonstop2h 46m

$138

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Thu 4/24

6:15 am-8:32 am

Nonstop2h 17m

Houston George Bush Intcntl

Thu 5/1

6:37 am-12:20 pm

1 stop5h 43m

$187

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 4/23

9:50 pm-12:51 am

Nonstop3h 01m

Houston George Bush Intcntl

Wed 4/30

9:33 pm-12:15 am

Nonstop2h 42m

$188

St. LouisHouston

STL - IAH

STLIAH

Lambert-St Louis

Tue 4/22

7:10 am-1:46 pm

1 stop6h 36m

Houston George Bush Intcntl

Tue 4/29

7:05 am-11:45 am

1 stop4h 40m

$197

PeoriaHouston

PIA - IAH

PIAIAH

Greater Peoria

Wed 5/28

3:53 pm-10:39 pm

1 stop6h 46m

Houston George Bush Intcntl

Sat 5/31

5:05 am-10:21 am

1 stop5h 16m

$199

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 4/16

8:25 pm-11:25 pm

Nonstop3h 00m

Houston George Bush Intcntl

Sat 4/19

6:25 am-9:05 am

Nonstop2h 40m

$208

MolineHouston

MLI - IAH

MLIIAH

Moline Quad-City

Tue 5/27

6:00 am-1:39 pm

1 stop7h 39m

Houston George Bush Intcntl

Tue 6/3

11:45 am-4:34 pm

1 stop4h 49m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 53 results
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Best time to book a flight from Illinois to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Illinois 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 Illinois to Houston George Bush Intcntl Airport

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Houston George Bush Intcntl Airport (average of $241). Flying from Illinois to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 IL to IAH?

Find hourly flight availability from Illinois to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 27, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Houston George Bush Intcntl Airport as you normally would.

Weekly flight availability from Illinois to Houston George Bush Intcntl Airport

Explore weekly flight availability from Illinois to George Bush Intcntl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 27, 2025.

The most flights from USIL to IAH are scheduled on a Wednesday (47 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston George Bush Intcntl Airport ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston George Bush Intcntl Airport when rainfall is around 3.2 in.

Temperature in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston George Bush Intcntl Airport, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to George Bush Intcntl. Reviews last updated March 27, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Illinois to Houston to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,792 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,792 reviews
Alaska Airlines
8.0
Very good
9,792 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,895 reviews
Alaska Airlines
8.0
Very good
9,792 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,603 reviews
Alaska Airlines
8.0
Very good
9,792 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,792 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Spirit Airlines
6.3
Okay
7,882 reviews
Alaska Airlines
8.0
Very good
9,792 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Illinois to George Bush Intcntl. 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 Illinois to Houston George Bush Intcntl Airport one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $66. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from Illinois to Houston George Bush Intcntl Airport for a low price.

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

    The most popular flight routes from Illinois to Houston George Bush Intcntl Airport are Chicago O'Hare Intl - Houston George Bush Intcntl, Lambert-St Louis - Houston George Bush Intcntl and Chicago Midway - Houston George Bush Intcntl.

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

    The top 3 most reliable airlines when flying from Illinois to Houston George Bush Intcntl Airport are Cathay Pacific (100%), Avianca (89%) and United Airlines (88%).

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

    Looking at all options, your cheapest flight can be booked for $40. While the most popular route (Chicago O'Hare Intl - Houston George Bush Intcntl) can be booked for $121 on average our data indicates $864 when flying from Illinois to Houston George Bush Intcntl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to George Bush Intcntl 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 Illinois to Houston George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Houston George Bush Intcntl Airport (average of $241). Flying from Illinois to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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.

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Alternative routes for Illinois to George Bush Intcntl

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Top 5 airlines flying from Illinois to George Bush Intcntl

Discover the top 5 airlines that operate flights from Illinois to George Bush Intcntl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$144FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$70Average$161FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$155Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$175Average$366FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$427FlexibilityNo cancel feeOn-timeN/A
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