$109 Cheap Delta flights Chicago (ORD) to Houston (IAH)

You can find affordable round-trip Delta Air Lines flights from $211 from ORD to IAH by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $109 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

November is one of the most affordable months to jet off to Houston with Delta Air Lines. You could also find great prices on one-way and round-trip tickets in February.

Search for affordable Delta Air Lines flights from O’Hare Intl. Airport (ORD) to George Bush Intercontinental Airport (IAH) one to three months ahead of your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on the “Nonstop” filter when searching for direct Delta Air Lines flights from ORD to IAH. You can also compare other airlines servicing the same nonstop journey.

To find the earliest departure from ORD to IAH with Delta Air Lines, filter your results by “Early Morning” and “Morning.” Booking an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

George Bush Intercontinental Airport (IAH) is the main Houston hub for Delta Air Lines flights from O’Hare Intl. Airport (ORD).

Heading from ORD to IAH with Delta Air Lines comes with a range of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee typically applies if you change or cancel your booking more than 24 hours after confirmation. To secure flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when looking for flights. For more details on canceling or changing your reservation, head to “Trips,” select your flight and click on “Manage Booking.”