Find flights
Deals
When to book
FAQs

Cheap flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport from £45

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Houston George Bush Intcntl are usually found in August or September, booked 66 days in advance, depart on a Tuesday or Monday and return on a Monday

Find flight deals from O'Hare Intl to George Bush Intcntl

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to George Bush Intcntl
Explore the most affordable flight options available from O'Hare Intl to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 November 2025.

Thu 25/1221:09ORD - IAH
Nonstop2h 50mSpirit Airlines
Sun 28/1217:30IAH - ORD
Nonstop2h 34mSpirit Airlines
Deal found 15/11£99
Thu 25/1221:09ORD - IAH
Nonstop2h 50mMultiple Airlines
Sun 28/1206:00IAH - ORD
1 stop12h 33mMultiple Airlines
Deal found 15/11£109
Fri 26/1221:09ORD - IAH
Nonstop2h 50mMultiple Airlines
Mon 29/1221:34IAH - ORD
1 stop20h 17mMultiple Airlines
Deal found 15/11£110
Thu 18/1211:35ORD - IAH
Nonstop3h 08mUnited Airlines
Tue 6/105:00IAH - ORD
Nonstop2h 45mUnited Airlines
Deal found 16/11£143
Thu 25/1212:39ORD - IAH
1 stop10h 16mFrontier
Sun 28/1206:00IAH - ORD
1 stop12h 33mFrontier
Deal found 15/11£147
Thu 25/1217:31ORD - IAH
1 stop6h 20mDelta
Wed 31/1218:38IAH - ORD
1 stop5h 24mDelta
Deal found 17/11£150
Sat 13/1213:16ORD - IAH
1 stop6h 54mDelta
Mon 19/112:40IAH - ORD
1 stop6h 09mDelta
Deal found 17/11£150
Tue 9/1205:30ORD - IAH
1 stop6h 00mDelta
Tue 9/1216:28IAH - ORD
1 stop6h 15mDelta
Deal found 16/11£151
Wed 17/1221:08ORD - IAH
Nonstop2h 51mUnited Airlines
Wed 24/1217:05IAH - ORD
Nonstop2h 50mUnited Airlines
Deal found 17/11£157
Sat 13/1207:35ORD - IAH
Nonstop3h 02mUnited Airlines
Sun 14/1218:35IAH - ORD
Nonstop2h 41mUnited Airlines
Deal found 17/11£158
Sat 13/1206:00ORD - IAH
Nonstop2h 54mUnited Airlines
Mon 19/106:20IAH - ORD
Nonstop2h 48mUnited Airlines
Deal found 17/11£166
Tue 9/1208:50ORD - IAH
1 stop5h 34mDelta
Sun 14/1206:40IAH - ORD
1 stop5h 00mDelta
Deal found 17/11£173

Cheap flight deals from O'Hare Intl to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to George Bush Intcntl (IAH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 November 2025.

Round-trip from

£85

One-way from

£45

Popular in

March

Cheapest in

August

Average price

£179

Good one-way deal

£93 or less
United Airlines
  • United Airlines
  • 15/1-15/1
  • Nonstop
  • 5h 45m total
  • Chicago to Houston
Search Deals
United Airlines
  • United Airlines
  • 15/1
  • Nonstop
  • 3h 05m total
  • Chicago to Houston
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Houston George Bush Intcntl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl to George Bush Intcntl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 November 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport that are best for you.

Fly from

O'Hare Intl

Fly to

George Bush Intcntl

Route

Depart

Return

Price

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 27/2

21:05-23:59

Nonstop2h 54m

Houston George Bush Intcntl

Sat 28/2

07:20-10:07

Nonstop2h 47m

£89

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 27/2

21:05-23:59

Nonstop2h 54m

Houston George Bush Intcntl

Mon 2/3

21:50-00:26

Nonstop2h 36m

£89

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 25/12

21:09-23:59

Nonstop2h 50m

Houston George Bush Intcntl

Sun 28/12

17:30-20:04

Nonstop2h 34m

£99

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 26/12

21:09-23:59

Nonstop2h 50m

Houston George Bush Intcntl

Mon 29/12

17:30-20:04

Nonstop2h 34m

£99

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 3/3

15:33-18:33

Nonstop3h 00m

Houston George Bush Intcntl

Wed 4/3

16:22-00:18

1 stop7h 56m

£134

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 15/1

21:05-00:12

Nonstop3h 07m

Houston George Bush Intcntl

Mon 19/1

05:00-07:47

Nonstop2h 47m

£142

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 9/1

15:53-19:01

Nonstop3h 08m

Houston George Bush Intcntl

Sun 11/1

21:50-00:28

Nonstop2h 38m

£142

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 26/2

21:05-23:59

Nonstop2h 54m

Houston George Bush Intcntl

Mon 2/3

21:50-00:26

Nonstop2h 36m

£142

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Fri 13/2

17:53-23:58

1 stop6h 05m

Houston George Bush Intcntl

Mon 16/2

05:15-13:21

1 stop8h 06m

£220

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 3/12

11:54-14:50

Nonstop2h 56m

Houston George Bush Intcntl

Sun 7/12

07:43-14:17

1 stop6h 34m

£232

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from O'Hare Intl to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from O'Hare Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to George Bush Intcntl. Price data was last updated on 14 November 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport (average of £43). Flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in June is currently the most expensive (average of £99). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to IAH?

Find hourly flight availability from O'Hare Intl to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 November 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 53% on flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

    United Airlines and Spirit Airlines can get you from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in just under 2h 50m. Your travel time will be generally consistent. The distance between Chicago O'Hare Intl Airport and Houston George Bush Intcntl Airport is about 926 mi. Generally, flights for this route are direct.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

    Consider Republic Airways (93%), Spirit Airlines (91%) or Avianca (91%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

    The cheapest flight price from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport is £40. On average you can expect to pay £121. The most popular route, (Chicago O'Hare Intl - Houston George Bush Intcntl), can usually be booked for £93.

  • Can I find deals for flights from O'Hare Intl to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to George Bush Intcntl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to George Bush Intcntl.

  • Can I find deals for business class flights from O'Hare Intl to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from O'Hare Intl to George Bush Intcntl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport (average of £43). Flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in June is currently the most expensive (average of £99). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from O'Hare Intl to George Bush Intcntl?

Deals for O'Hare Intl to George Bush Intcntl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to George Bush Intcntl?

Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl to George Bush Intcntl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from O'Hare Intl to George Bush Intcntl with no change fees?

Need flexible booking options for your flight to George Bush Intcntl from O'Hare Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from O'Hare Intl to George Bush Intcntl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to George Bush Intcntl from O'Hare Intl today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.