The cheapest times to fly from ORD to IAH are
- August 6th to February 25th (except the weeks of November 19th, December 17th, and December 24th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ORD to IAH is early December. Prices can be as high as $684 for Sunday flights during early to mid May, or as low as $97 for Tuesday flights around early December.
When to Fly to Houston
Flying from Chicago, IL (ORD) to Houston, TX (IAH) will usually cost between $117 to $318 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $117. Due to high demand the most expensive time to fly is early to mid May, with an average price of $356. Planning your trip to low-cost times can easily save you $238 on economy flights and even more on first-class flights. Generally, any price below $215 can be considered a good price for a round-trip ORD to IAH flight.
See below for a graph of average weekly prices for the ORD to IAH route. All prices are for round-trip tickets in USD.
Compared to other flights, the ORD to IAH flight is much cheaper than the average and costs much less than the average flight leaving from Chicago. The average price per mile (for a direct flight) is $0.14, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $72 (28%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $182. Return trip prices are from the IAH to ORD flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from ORD to IAH can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 39 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from ORD to IAH? We’ve got answers.
Which airlines fly this route?
You can find 11 major airlines flying this route most often: Alaska, American, Delta, Emirates, Frontier, Iberia, JetBlue, Qantas, Qatar Airways, Spirit, United, and potentially more during busy seasons.
How far away is it from George Bush Intercontinental/Houston Airport to Chicago O’Hare International Airport?
The distance between the two airports is roughly 926 miles or 1490 kilometers.
How long does it take to fly from ORD to IAH?
The real-world flight time for a nonstop ORD to IAH flight is about 2 hour 39 minutes.
How many flights go between Chicago, IL and Houston, TX?
It depends on the day of the week and the date, but a typical day might have around 53 available flights from ORD to IAH.
Airport Location Info
|Origination airport name||Chicago O’Hare International Airport|
|Country||the United States|
|Destination airport name||George Bush Intercontinental/Houston Airport|
|Country||the United States|
Late and Early Flight Data
Flights from ORD to IAH tend to depart later than the average flight. According to our recently updated data, 32% of flights departed 5 or more minutes late, and 9% of flights left 5 or more minutes early. On average you can expect to leave IAH heading for ORD about 20 minutes late. This does significantly impact arrival time, as the average landing time in Houston, TX is about 13 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- American: 17 minutes late
- United: 20 minutes late
- Envoy: 18 minutes late
- Spirit: 24 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.