$47 Cheap Flights from Chicago (ORD) to Houston (IAH)

View $47 flight on Mon, Aug 25, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Chicago to Houston (ORD-IAH)

Prices were available within the past 7 days and start at $47 for one-way flights and $93 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Oct 2 - Mon, Oct 6
ORD
Chicago
IAH
Houston
$93 Roundtrip, just found
$93
Roundtrip
just found
Select American Airlines flight, departing Thu, Oct 2 from Chicago to Houston, returning Mon, Oct 6, priced at $93 just found
Spirit Airlines
Fri, Oct 3 - Mon, Oct 6
ORD
Chicago
IAH
Houston
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Oct 3 from Chicago to Houston, returning Mon, Oct 6, priced at $97 just found
Spirit Airlines
Sat, Aug 2 - Tue, Aug 5
ORD
Chicago
IAH
Houston
$100 Roundtrip, found 2 hours ago
$100
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Sat, Aug 2 from Chicago to Houston, returning Tue, Aug 5, priced at $100 found 2 hours ago
Spirit Airlines
Fri, Oct 17 - Sat, Oct 25
ORD
Chicago
IAH
Houston
$100 Roundtrip, just found
$100
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Oct 17 from Chicago to Houston, returning Sat, Oct 25, priced at $100 just found
Spirit Airlines
Thu, Aug 28 - Mon, Sep 1
ORD
Chicago
IAH
Houston
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Aug 28 from Chicago to Houston, returning Mon, Sep 1, priced at $102 just found
Frontier Airlines
Thu, Aug 14 - Mon, Aug 18
ORD
Chicago
IAH
Houston
$103 Roundtrip, just found
$103
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 14 from Chicago to Houston, returning Mon, Aug 18, priced at $103 just found
Frontier Airlines
Thu, Aug 14 - Mon, Aug 18
ORD
Chicago
IAH
Houston
$104 Roundtrip, just found
$104
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Aug 14 from Chicago to Houston, returning Mon, Aug 18, priced at $104 just found
United
Tue, Sep 16 - Mon, Sep 22
ORD
Chicago
IAH
Houston
$106 Roundtrip, found 11 hours ago
$106
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Sep 16 from Chicago to Houston, returning Mon, Sep 22, priced at $106 found 11 hours ago
Spirit Airlines
Sat, Aug 2 - Mon, Aug 4
ORD
Chicago
IAH
Houston
$109 Roundtrip, just found
$109
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Aug 2 from Chicago to Houston, returning Mon, Aug 4, priced at $109 just found
Delta
Wed, Aug 27 - Tue, Sep 16
ORD
Chicago
IAH
Houston
$197 Roundtrip, found 2 hours ago
$197
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Aug 27 from Chicago to Houston, returning Tue, Sep 16, priced at $197 found 2 hours ago

Find the cheapest month to fly from Chicago (ORD) to Houston (IAH)

April is typically the cheapest month to fly

From $48 - $397 per traveler.

Graph displaying average flight prices per month

Flights from Chicago (ORD) to Houston (IAH)
Origin airport
O'Hare Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$93
Distance
925 mi
Average flight time
2 hours 46 mins

Chicago to Houston Flights

The cheapest times to fly from Chicago to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Houston are during the month of October. You can find some of the cheapest flights from Chicago to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Houston

Sunday is one of the best days to book for cheap flights from Chicago to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $47 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH) cost?
Cheap round-trip flights from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH) start from $100. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving ORD on August 2 2025 and touching down at IAH. The price was last updated on July 6 2025 and has not changed since.
What is the cheapest month to fly from ORD to IAH?
The cheapest flights from ORD to IAH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
You can pick from 4 carriers that operate direct flights from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH). These include:

  • United Airlines
  • American Airlines
  • Spirit Airlines

What is the cheapest airline that flies from ORD to IAH?
Travel from ORD to IAH with Spirit Airlines. This airline currently has the lowest one-way fare on this route, starting from $50. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on September 29 2025. Prices were last updated on July 6 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
When departing from O'Hare Intl. Airport (ORD), you'll have a choice from an average of 14 daily direct flights to George Bush Intercontinental Airport (IAH).
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
The 10 AM departures from ORD to IAH are typically the busiest. These flights can come with a higher price due to their popularity. If you're looking to save, choose a less crowded time to fly.
What day of the week has the most flights from ORD to IAH?
Sunday has the most flights from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH). Consider taking off on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
O'Hare Intl. Airport (ORD)'s earliest flight to George Bush Intercontinental Airport (IAH) is at approximately 5:45AM UTC-6. With a flight time of 2h 59m, you'll land at around 8:44AM UTC-6.
How long does it take to fly from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
Typically, it takes 3 hours to fly the 930 mi from ORD to IAH.
What airline has the least delays from ORD to IAH?
United Airlines has the strongest track record for on-time direct flights from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH), with an on-time score of 80%. Use the Expedia App to check your flight schedule before you head off and get real-time alerts about any trip changes.
What is the best time to fly from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
Choose a flight from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from O'Hare Intl. Airport (ORD)?
If you're on a direct flight from O'Hare Intl. Airport (ORD) to Houston, George Bush Intercontinental Airport (IAH) is the only airport you can land at.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH) last-minute?
Last-minute fares from ORD to IAH are usually more expensive. To secure the lowest prices, start searching for flights well in advance. That being said, if you're flexible with your travel dates, it's possible to score a cheap fare right before your trip.
Is it cheaper to book an ORD to IAH flight and hotel package?
You'll generally save money by booking an ORD to IAH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH)?
In most cases, you can cancel or reschedule your ORD to IAH flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want further information, go to our Customer Service portal.

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