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.
$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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — CHI
Jul 7 — Jul 141
1 adult, Economy
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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 73 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 2, 2025.
Round-trip from | $123 (Kiwi.com) |
|---|---|
One-way from | $63 (Frontier) |
Popular in | June |
Cheapest in | September |
Average price | $187 |
Good round-trip deal | $159 or less |
Good one-way deal | $87 or less |
Find flight deals from George Bush Intcntl to Chicago
Cheapest flights from George Bush Intcntl to ChicagoExplore 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 2, 2025.
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 2, 2025.
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 7/235:15 amIAH - ORD
Nonstop2h 35mSpirit Airlines
Sat 7/269:10 pmORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 7/1![Spirit Airlines logo]()
$123
This Priceline deal was found by Cheapflights users on 7/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/238:00 amIAH - ORD
1 stop8h 04mFrontier
Sun 8/106:30 amORD - IAH
Nonstop2h 50mFrontier
Deal found 7/2![Frontier logo]()
$124
This Priceline deal was found by Cheapflights users on 6/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:56 pmIAH - MDW
1 stop5h 31mFrontier
Sun 8/246:45 amMDW - IAH
1 stop10h 10mFrontier
Deal found 6/30![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Tue 8/198:45 amIAH - ORD
1 stop6h 25mMultiple Airlines
Sun 8/248:47 pmORD - IAH
Nonstop2h 42mMultiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$126
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/278:56 pmIAH - RFD
1 stop15h 12mMultiple Airlines
Sun 8/3112:58 pmRFD - IAH
1 stop15h 50mMultiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$340
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 2, 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
Wed 7/23
5:15 am-7:50 am
Nonstop2h 35m
Chicago O'Hare Intl
Sat 7/26
9:10 pm-11:59 pm
Nonstop2h 49m
$123
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Mon 7/28
5:15 am-7:50 am
Nonstop2h 35m
Chicago O'Hare Intl
Sun 8/3
6:30 am-9:20 am
Nonstop2h 50m
$124
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Fri 9/12
5:52 pm-12:10 am
1 stop6h 18m
Chicago O'Hare Intl
Sun 9/14
11:32 am-8:15 pm
1 stop8h 43m
$125
HoustonChicago
IAH - MDW
IAHMDW
Houston George Bush Intcntl
Fri 8/22
5:56 pm-11:27 pm
1 stop5h 31m
Chicago Midway
Sun 8/24
6:45 am-4:55 pm
1 stop10h 10m
$125
HoustonChicago
IAH - RFD
IAHRFD
Houston George Bush Intcntl
Wed 8/27
8:56 pm-12:08 pm
1 stop15h 12m
Chicago Greater Rockford
Sun 8/31
12:58 pm-4:48 am
1 stop15h 50m
$340
HoustonChicago
IAH - MDW
IAHMDW
Houston George Bush Intcntl
Mon 7/21
7:45 pm-10:23 pm
Nonstop2h 38m
$63
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Thu 7/31
10:05 am-12:49 pm
Nonstop2h 44m
$67
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Fri 8/1
5:15 am-7:50 am
Nonstop2h 35m
$68
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Thu 11/27
6:30 am-9:11 am
Nonstop2h 41m
$79
HoustonChicago
IAH - RFD
IAHRFD
Houston George Bush Intcntl
Thu 9/25
7:17 pm-2:25 pm
2 stops19h 08m
$108
Showing 1-10 of 13 results
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
![Spirit Airlines]()
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.
![United Airlines]()
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.
Airports
Our travel experts
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 June 27, 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 73 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 2, 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 77% 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 June 29, 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 2, 2025.
The most flights from IAH to CHI are scheduled on a Wednesday (58 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 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 2, 2025.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Chicago, such as Delta, United Airlines, and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Food
7.3
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Food
7.3
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Food
7.3
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Food
7.3
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Crew
8.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Food
7.3
Entertainment
7.9
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
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.
Traveling to a place near Houston George Bush Intcntl Airport?
Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locationsMerrillville
Lansing
Benton Harbor
Porter
Hammond
Valparaiso
Chesterton
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Alternative routes for George Bush Intcntl to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
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 2, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$158 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$67 | Average$160 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$157 | Average$254 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$175 | Average$355 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$346 | FlexibilityNo cancel fee | On-timeN/A |