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$46+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — CHI
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Chicago are usually found in September or October, 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

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 February 12, 2026.

This Expedia deal was found by Cheapflights users on 2/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:33 pm
IAH
-
ORD
Nonstop2h 46m
Multiple Airlines
Sun 4/265:25 am
ORD
-
IAH
Nonstop3h 07m
Multiple Airlines
Deal found 2/11$75
This Frontier deal was found by Cheapflights users on 2/11. 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.
Thu 3/511:17 am
IAH
-
ORD
Nonstop2h 48m
Frontier
Mon 3/95:15 am
ORD
-
IAH
Nonstop3h 16m
Frontier
Deal found 2/11$76
This Flightnetwork deal was found by Cheapflights users on 2/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:15 am
IAH
-
ORD
Nonstop2h 39m
Spirit Airlines
Mon 3/98:59 am
ORD
-
IAH
Nonstop3h 01m
Spirit Airlines
Deal found 2/9$78
This Cheapflightsfares deal was found by Cheapflights users on 2/11. 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 2/285:15 am
IAH
-
ORD
Nonstop2h 39m
Spirit Airlines
Wed 3/49:18 am
ORD
-
IAH
Nonstop3h 06m
Spirit Airlines
Deal found 2/11$79
This Cheapflightsfares deal was found by Cheapflights users on 2/9. 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.
Wed 3/43:37 pm
IAH
-
ORD
Nonstop2h 41m
Spirit Airlines
Mon 3/98:59 am
ORD
-
IAH
Nonstop3h 01m
Spirit Airlines
Deal found 2/9$80
This Frontier deal was found by Cheapflights users on 2/9. 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.
Sat 3/214:51 pm
IAH
-
ORD
Nonstop2h 54m
Frontier
Mon 3/235:11 am
ORD
-
IAH
Nonstop3h 16m
Frontier
Deal found 2/9$82
This Frontier deal was found by Cheapflights users on 2/12. 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.
Fri 4/101:27 pm
IAH
-
MDW
Nonstop2h 32m
Frontier
Mon 4/139:20 am
MDW
-
IAH
Nonstop3h 12m
Frontier
Deal found 2/12$82
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 4/309:27 am
IAH
-
ORD
Nonstop2h 50m
Frontier
Sun 5/35:25 am
ORD
-
IAH
Nonstop3h 07m
Frontier
Deal found 2/10$83
This CheapOair deal was found by Cheapflights users on 2/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2812:24 pm
IAH
-
ORD
Nonstop2h 53m
Multiple Airlines
Wed 3/49:18 am
ORD
-
IAH
Nonstop3h 06m
Multiple Airlines
Deal found 2/10$85
This Cheapflightsfares deal was found by Cheapflights users on 2/10. 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.
Thu 2/265:15 am
IAH
-
ORD
Nonstop2h 39m
Spirit Airlines
Mon 3/28:59 am
ORD
-
IAH
Nonstop3h 01m
Spirit Airlines
Deal found 2/10$86
This Kiwi.com deal was found by Cheapflights users on 2/12. 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.
Fri 3/64:51 pm
IAH
-
ORD
Nonstop2h 54m
Frontier
Mon 3/95:15 am
ORD
-
IAH
Nonstop3h 16m
Frontier
Deal found 2/12$87
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Fri 3/61:43 pm
IAH
-
MDW
Nonstop2h 30m
Frontier
Mon 3/910:00 am
MDW
-
IAH
Nonstop2h 58m
Frontier
Deal found 2/11$87

Find 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$75
(Expedia)

One-way from

$46
(Trip.com)

Popular in

February

Cheapest in

September

Average price

$256

Good round-trip deal

$94 or less

Good one-way deal

$99 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Chicago (CHI) flights.
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From Houston George Bush Intcntl to Chicago (CHI)
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One-way flight from Houston George Bush Intcntl to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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

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 February 12, 2026.
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 4/1

6:14 am-8:50 am

Nonstop2h 36m

Chicago O'Hare Intl

Sun 4/5

3:21 pm-6:14 pm

Nonstop2h 53m

$97

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 3/26

11:41 am-2:16 pm

Nonstop2h 35m

Chicago O'Hare Intl

Mon 3/30

5:11 am-8:27 am

Nonstop3h 16m

$101

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 3/12

4:22 pm-11:17 pm

1 stop6h 55m

Chicago O'Hare Intl

Tue 3/17

9:45 am-12:41 pm

Nonstop2h 56m

$110

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 4/7

6:14 am-8:50 am

Nonstop2h 36m

Chicago O'Hare Intl

Fri 4/10

3:21 pm-6:14 pm

Nonstop2h 53m

$121

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Thu 3/5

6:15 am-4:16 pm

1 stop10h 01m

Chicago Midway

Mon 3/9

10:00 am-12:58 pm

Nonstop2h 58m

$133

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 2/18

7:59 pm-10:46 am

1 stop14h 47m

Chicago O'Hare Intl

Wed 3/4

9:18 am-12:24 pm

Nonstop3h 06m

$147

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 2/19

5:15 am-7:54 am

Nonstop2h 39m

Chicago O'Hare Intl

Sun 2/22

1:17 pm-7:00 am

1 stop17h 43m

$155

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sun 2/15

7:21 am-9:13 pm

1 stop13h 52m

Chicago O'Hare Intl

Tue 2/17

10:44 am-8:45 pm

1 stop10h 01m

$163

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 2/23

5:15 am-7:54 am

Nonstop2h 39m

Chicago O'Hare Intl

Wed 2/25

5:15 am-7:34 pm

2 stops14h 19m

$163

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 3/6

1:43 pm-4:13 pm

Nonstop2h 30m

Chicago Midway

Mon 3/9

2:41 pm-10:56 pm

1 stop8h 15m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 53 results
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Compare providers for flights from George Bush Intcntl to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Chicago in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 February 6, 2026.

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, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Chicago (average of $60). Flying from Houston George Bush Intcntl Airport to Chicago in May is currently the most expensive (average of $102). 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 February 12, 2026.

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 58% 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 February 7, 2026.

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

How often are flights from Houston to Chicago delayed?

About 13% of weekly flights between Houston and Chicago have experienced delays in the past year, with the average delay time being 159 minutes.

What is the most punctual flight time for Houston to Chicago flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to Chicago flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 10% of flights being delayed.

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Chicago trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

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 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 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

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 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

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 February 12, 2026.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Chicago, such as United Airlines, American Airlines, and Spirit Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,281 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,281 reviews
United Airlines
7.4
Good
9,281 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,271 reviews
United Airlines
7.4
Good
9,281 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Spirit Airlines
6.3
Okay
8,445 reviews
United Airlines
7.4
Good
9,281 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Frontier
5.7
Fair
3,052 reviews
United Airlines
7.4
Good
9,281 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

  • How long is the flight from Houston George Bush Intcntl Airport to Chicago?

    Airlines like Spirit Airlines, Frontier, and Delta fly from Houston George Bush Intcntl Airport to Chicago in about 2h 36m. The time it takes to get you to your destination can typically vary by up to 7h 25m. There are 926 mi between Houston George Bush Intcntl Airport and Chicago. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Chicago round-trip?

    Frontier, at $62, was found to be the cheapest airline from Houston George Bush Intcntl Airport to Chicago.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Frontier is currently priced 70% 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 Frontier. According to our data, you can fly for as low as $38. Users have also found prices from $38 and $78 on Spirit Airlines 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: CommutAir (100%), United Airlines (84%), Air New Zealand( 81%).

  • 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 $871, our data indicates the cheapest price to be $57. The most popular route (Houston George Bush Intcntl - Chicago O'Hare Intl), is priced around $63.

  • 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, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Chicago (average of $60). Flying from Houston George Bush Intcntl Airport to Chicago in May is currently the most expensive (average of $102). 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
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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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$181FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$73Average$157FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$159Average$269FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$173Average$355FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$306FlexibilityNo cancel feeOn-timeN/A

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