$97 Find Cheap Flights from Chicago to Houston - Compare and Save

The absolute cheapest return flight from Chicago to Houston costs $135 on the route between Chicago O'Hare Intl Airport (ORD) and Houston George Bush Intcntl Airport (IAH). However, over the past month, flights between Chicago Midway Airport (MDW) and Houston George Bush Intcntl Airport (IAH) were, on average, 35% cheaper than other Chicago-Houston routes. The most popular route is between Chicago O'Hare Intl Airport (ORD) and Houston George Bush Intcntl Airport (IAH).

For Chicago to Houston, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Houston back to Chicago, the best deals are generally found on Friday, with Sunday being the most expensive.

The cheapest month for flights from Chicago to Houston is September, where tickets cost $195 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $342 and $322 respectively.

To get a below average price on the flight from Chicago to Houston, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

In the past 5 days, the cheapest round-trip tickets from Chicago to Houston were found on Frontier ($150) and American Airlines ($183).

Chicago and Houston are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (84 flights per week), Southwest (37 flights per week), and American Airlines (35 flights per week).

Weekly flights between Chicago and Houston historically see delays in approximately 21% of cases, with the average delay over the past year being 115 minutes.

Typically, flights leaving in the morning tend to face fewer delays, whereas flights at night have historically encountered delays more often.

Statistically, Wednesday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Based on our data, Southwest have experienced the fewest delays on this route in the past 12 months, with only about 21% of their flights encountering any delays.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 22 and 25 nonstop flights that take off from Chicago and land in Houston, with an average flight time of 2h 44m. The most common departure time is 7:00 am and most flights take off in the morning, while the most flights land at Houston George Bush Intcntl Airport. Each week, there are 163 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.