HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$63+ Cheap flights from George Bush Intcntl (IAH) to Chicago (CHI)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — CHI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Chicago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Chicago are usually found in September or March, booked 55 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from George Bush Intcntl to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$109
(FlightHub)

One-way from

$63
(CheapOair)

Popular in

June

Cheapest in

September

Average price

$198

Good round-trip deal

$152 or less

Good one-way deal

$91 or less
From Houston George Bush Intcntl to Chicago (CHI)
Search Deals
One-way flight from Houston George Bush Intcntl to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Chicago (CHI).
Search Deals

Find flight deals from George Bush Intcntl to Chicago

Cheapest flights from George Bush Intcntl to Chicago
Explore the most affordable flight options available from George Bush Intcntl to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:56 pmIAH - ORD
1 stop7h 54mSpirit Airlines
Tue 9/28:47 pmORD - IAH
Nonstop2h 42mSpirit Airlines
Deal found 7/31$109
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:28 pmIAH - ORD
Nonstop2h 51mMultiple Airlines
Mon 8/258:47 pmORD - IAH
Nonstop2h 42mMultiple Airlines
Deal found 7/30$112
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
Sat 9/135:46 pmIAH - MDW
1 stop5h 31mFrontier
Sun 9/146:30 amMDW - IAH
Nonstop2h 48mFrontier
Deal found 7/29$129
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1510:05 amIAH - ORD
Nonstop2h 44mFrontier
Thu 8/2112:42 pmORD - IAH
Nonstop2h 55mFrontier
Deal found 7/29$142
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Wed 8/207:16 pmIAH - RFD
2 stops19h 00mMultiple Airlines
Sun 8/2412:58 pmRFD - IAH
1 stop17h 07mMultiple Airlines
Deal found 7/30$210
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Fri 9/266:39 amIAH - MDW
2 stops14h 13mMultiple Airlines
Mon 9/297:03 pmMDW - IAH
1 stop10h 47mMultiple Airlines
Deal found 7/30$211
This Delta deal was found by Cheapflights users on 7/31. 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.
Sun 9/145:20 amIAH - MDW
1 stop7h 08mDelta
Thu 9/186:00 amMDW - IAH
1 stop6h 08mDelta
Deal found 7/31$217

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Chicago 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 July 31, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Chicago that are best for you.

Fly from

George Bush Intcntl

Fly to

Chicago

Route

Depart

Return

Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 8/23

8:56 pm-4:50 am

1 stop7h 54m

Chicago O'Hare Intl

Tue 9/2

8:47 pm-11:29 pm

Nonstop2h 42m

$109

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 8/22

8:28 pm-11:19 pm

Nonstop2h 51m

Chicago O'Hare Intl

Mon 8/25

8:47 pm-11:29 pm

Nonstop2h 42m

$112

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 8/21

4:22 pm-7:17 pm

Nonstop2h 55m

Chicago O'Hare Intl

Mon 8/25

12:31 pm-3:26 pm

Nonstop2h 55m

$122

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Sat 9/13

5:46 pm-11:17 pm

1 stop5h 31m

Chicago Midway

Sun 9/14

6:30 am-9:18 am

Nonstop2h 48m

$129

HoustonChicago

IAH - RFD

IAHRFD

Houston George Bush Intcntl

Wed 8/20

7:16 pm-2:16 pm

2 stops19h 00m

Chicago Greater Rockford

Sun 8/24

12:58 pm-6:05 am

1 stop17h 07m

$210

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 9/26

6:39 am-8:52 pm

2 stops14h 13m

Chicago Midway

Mon 9/29

7:03 pm-5:50 am

1 stop10h 47m

$211

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Sun 9/14

5:20 am-12:28 pm

1 stop7h 08m

Chicago Midway

Thu 9/18

6:00 am-12:08 pm

1 stop6h 08m

$217

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 9/22

12:47 pm-10:48 pm

1 stop10h 01m

$63

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 8/21

4:22 pm-7:17 pm

Nonstop2h 55m

$69

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 9/30

6:20 am-8:59 am

Nonstop2h 39m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 16 results
1
2

The best insider tips for Houston George Bush Intcntl Airport to Chicago flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Chicago trip
Airlines
Frontier

Frontier offers extra comfort seats with 32” separation for added legroom on short flights.


Early morning flights have a better chance of on-time departure, avoiding carry-over delays.

Read more about Frontierby Marisa Garcia
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for short flights.


Spirit's self-service bag drop saves time; print your boarding pass in advance.

Read more about Spirit Airlinesby Daniel Scheffler
United Airlines

United's Polaris Lounges offer showers, napping areas, and dining for premium passengers.


United's Economy Plus offers extra legroom seats towards the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Airports
IAH

For quick security checks, check the IAH Depart tab for current wait times at all terminals.

Read more about IAHby Evie Carrick
ORD

For a quick city transfer, take the 'L' train from ORD to downtown Chicago, avoiding traffic delays.

Read more about ORDby Ramsey Qubein
MDW

Use the Orange Line for a direct, low-cost trip from MDW to downtown Chicago in under 30 minutes.

Read more about MDWby Ramsey Qubein
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more

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

Have a flexible travel schedule? Discover the best time to fly to Chicago 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 Chicago

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Chicago. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Houston George Bush Intcntl Airport to Chicago, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Chicago (average of $245). Flying from Houston George Bush Intcntl Airport to Chicago 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 CHI?

Find hourly flight availability from George Bush Intcntl to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Houston George Bush Intcntl Airport to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 76% versus a flight at noon.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Chicago?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Chicago. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Chicago flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Houston George Bush Intcntl Airport to Chicago

Explore weekly flight availability from George Bush Intcntl to Chicago. 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 July 31, 2025.

The most flights from IAH to CHI are scheduled on a Thursday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Chicago, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

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
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

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
8,048 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

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
3,239 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

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

Find useful and relevant information for your journey from George Bush Intcntl to Chicago. 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 flying from Houston George Bush Intcntl Airport to Chicago round-trip?

    Spirit Airlines, at $109, was found to be the cheapest airline from Houston George Bush Intcntl Airport to Chicago.Alternate airlines to your destination round-trip include Frontier and Delta. Spirit Airlines is currently priced 39% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $63. Users have also found prices from $69 and $79 on Frontier and American Airlines, respectively.

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

    Most travelers choose Houston George Bush Intcntl - Chicago O'Hare Intl, Houston George Bush Intcntl - Chicago Midway or Houston George Bush Intcntl - Chicago Greater Rockford when deciding on the best route from Houston George Bush Intcntl Airport to Chicago.

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

    Before booking your flight to Chicago from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (100%), ANA (85%), Cathay Pacific( 82%).

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

    Looking for the cheapest flight from Houston George Bush Intcntl Airport to Chicago? While on average our users pay $1,409, our data indicates the cheapest price to be $63. The most popular route (Houston George Bush Intcntl - Chicago O'Hare Intl), is priced around $59.

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

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

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

    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 Chicago.

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

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Chicago 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 Chicago?

    Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Chicago (average of $245). Flying from Houston George Bush Intcntl Airport to Chicago 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

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Valparaiso
Chesterton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from George Bush Intcntl to Chicago

Discover the top 5 airlines that operate flights from George Bush Intcntl to Chicago. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$69Average$166FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$157Average$258FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$356FlexibilityNo cancel feeOn-time69%
DeltaCheapest$196Average$306FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.