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

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Compare Houston George Bush Intercntl. to Chicago O'Hare International flight deals

Find the cheapest month or even day of the year to fly to Chicago O'Hare International

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Flight deals from Houston George Bush Intercntl. to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. to Chicago O'Hare International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston George Bush Intercntl. to Chicago O'Hare International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to Chicago O'Hare International flights are currently cheapest in July.

Direct flights from Houston George Bush Intercntl. to Chicago O'Hare International

Houston George Bush Intercntl. to Chicago O'Hare International: Alternative routes

Compare routes from Houston George Bush Intercntl. to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier than Chicago O'Hare International.

Houston to Chicago: Flight information

The things to know before you go.
Cheapest flight found$156
Cheapest month to flyAugust
Average flight time2 hrs, 50 mins
Most popular airlineAmerican Airlines
Average flights per week374

Finding cheap flights from Houston George Bush Intercntl. to Chicago O'Hare International: Frequently asked questions

The best price we found for a return flight from Houston George Bush Intercntl. to Chicago O'Hare International is $156. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 50 minutes is the average flight time from Houston George Bush Intercntl. to Chicago O'Hare International.
American Airlines, Alaska Airlines and United fly direct from Houston George Bush Intercntl. to Chicago O'Hare International.
As of June 2025, there are 374 flights per week flying from Houston George Bush Intercntl. to Chicago O'Hare International.
The cheapest month to fly from Houston George Bush Intercntl. to Chicago O'Hare International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to Chicago O'Hare International Airport on Monday, 18 August 2025.
Yes – the average flight time is 2 hours and 50 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago O'Hare International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Spirit Airlines offers the cheapest flight tickets to Chicago O'Hare International.

Flying from George Bush Intercontinental Airport (IAH) to O'Hare International Airport (ORD): what you need to know

  • Around 2 hours 40 minutes is how long you'll be travelling on a direct flight from George Bush Intercontinental Airport to O'Hare International Airport.

  • Houston and Chicago share the same timezone, UTC-5.

  • Take your pick of 130 weekly George Bush Intercontinental Airport to O'Hare International Airport flights. The 05:00 departure with United Airlines is the earliest available. Spirit Airlines operates the latest service of the day at 22:27.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your IAH to ORD flight.

  • You'll likely experience bigger queues during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.

  • You'll find a range of airlines offering direct flights from George Bush Intercontinental Airport to O'Hare International Airport. When you're ready to kick off your Chicago adventure, let one of these carriers transport you to this unmissable part of United States:

  • Most passengers choose to travel with American Airlines on this route.

  • United Airlines ranks as the top on-time carrier for IAH to ORD flights, with 80.19% of its services arriving as scheduled.

  • If you want to include a stop along the way, simply uncheck 'Direct flights only' when searching for your ticket from George Bush Intercontinental Airport to O'Hare International Airport. Here are the top stopovers between IAH and ORD:

    • Bill and Hillary Clinton National Airport

    • Lambert-St. Louis International Airport

    • Dallas Love Field Airport

How to find the cheapest flights from George Bush Intercontinental Airport (IAH) to O'Hare International Airport (ORD)

  • Currently, $78 is the lowest price we've found for a one-way George Bush Intercontinental Airport to O'Hare International Airport flight. The best price for a return ticket is $156. Keep in mind that fares may change due to demand at the time of booking.

  • To get cheap tickets from IAH to ORD, reserve your trip six months ahead of your departure.

  • Schedule your trip for May. That's the cheapest month for flights from George Bush Intercontinental Airport to O'Hare International Airport. If you're flexible with your travel dates, try out the 'Whole month' tool to find the lowest price across every month.

  • There's no need to check back in every day to see if fares have dropped when you set up a Price Alert. We'll update you as soon as a special offer becomes available on cheap flights from IAH to ORD.

  • Discover the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from George Bush Intercontinental Airport to O'Hare International Airport, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about George Bush Intercontinental Airport (IAH)

  • IAH is located at 16930 JFK Boulevard.

  • Of the flights that depart from George Bush Intercontinental Airport, 78.42% arrive on time at their destination.

  • To reach George Bush Intercontinental Airport from central Houston, it'll take about 20 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 27 kilometres from the airport to the city centre.

  • Catching public transport? You can expect a journey time of around 50 minutes.

  • Catching an early flight from George Bush Intercontinental Airport to O'Hare International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels near IAH:

Arriving at O'Hare International Airport (ORD)

Getting from O'Hare International Airport (ORD) to central Chicago

  • You'll find ORD at 10000 West O'Hare.

  • From O'Hare International Airport, Chicago is approximately 40 kilometres away. It takes around 35 minutes to drive to the centre.

  • It takes roughly 55 minutes to get there using public transport.

When to fly to O'Hare International Airport (ORD)

  • The quietest month for a flight from George Bush Intercontinental Airport to O'Hare International Airport is January, while August is the busiest. Pick the best time to go to Chicago based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Book your flight from George Bush Intercontinental Airport to O'Hare International Airport for July if you want to explore Chicago during its warmest month. You can expect temperatures of between 15ºC (59ºF) and 29ºC (84ºF).

  • January has average temperatures of between -12ºC (10ºF) and 3ºC (37ºF). Look for cheap tickets from IAH to ORD around that time if you want to travel when it's cooler.

Explore more of United States

  • Chicago has its own special appeal, but there are so many other corners of United States waiting to be explored. About 451 kilometres south-east of Chicago, a trip to Columbus will keep your itinerary packed. Start with leading sights like Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • Around 257 kilometres south-east of Chicago, Indianapolis is another favourite stop in United States. Experience major highlights starting with The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.