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Cheap flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport from £43

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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

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 September 2025.

Round-trip from

£115

One-way from

£43

Popular in

March

Cheapest in

January

Average price

£144
United Airlines
  • United Airlines
  • 18/10-22/10
  • Nonstop
  • 5h 38m total
  • Chicago to Houston
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Spirit Airlines
  • Spirit Airlines
  • 23/1
  • Nonstop
  • 2h 45m total
  • Chicago to Houston
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£16 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from O'Hare Intl to George Bush Intcntl

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 September 2025.

Sat 11/1007:10ORD - IAH
Nonstop2h 53mUnited Airlines
Wed 15/1018:50IAH - ORD
Nonstop2h 46mUnited Airlines
Deal found 16/9£115
Thu 27/1107:10ORD - IAH
Nonstop3h 02mUnited Airlines
Tue 2/1220:15IAH - ORD
Nonstop2h 41mUnited Airlines
Deal found 16/9£129
Tue 14/1021:05ORD - IAH
Nonstop2h 54mUnited Airlines
Thu 16/1021:35IAH - ORD
Nonstop2h 39mUnited Airlines
Deal found 17/9£130
Fri 26/910:23ORD - IAH
1 stop8h 56mSpirit Airlines
Fri 26/921:26IAH - ORD
1 stop14h 25mSpirit Airlines
Deal found 17/9£142
Wed 1/1015:58ORD - IAH
Nonstop2h 54mUnited Airlines
Tue 7/1005:00IAH - ORD
Nonstop2h 50mUnited Airlines
Deal found 16/9£144
Thu 27/1110:10ORD - IAH
1 stop7h 40mDelta
Tue 2/1212:34IAH - ORD
1 stop6h 13mDelta
Deal found 17/9£159
Tue 21/1015:58ORD - IAH
Nonstop2h 54mUnited Airlines
Tue 21/1021:35IAH - ORD
Nonstop2h 39mUnited Airlines
Deal found 16/9£163
Tue 21/1015:58ORD - IAH
Nonstop2h 54mUnited Airlines
Thu 23/1021:35IAH - ORD
Nonstop2h 39mUnited Airlines
Deal found 16/9£166
Tue 18/1105:32ORD - IAH
1 stop5h 58mDelta
Fri 28/1106:40IAH - ORD
1 stop4h 59mDelta
Deal found 18/9£179
Mon 27/1007:22ORD - IAH
Nonstop2h 44mAmerican Airlines
Fri 31/1010:52IAH - ORD
Nonstop2h 49mAmerican Airlines
Deal found 16/9£181
Sat 8/1117:10ORD - IAH
Nonstop3h 00mUnited Airlines
Sun 9/1105:00IAH - ORD
Nonstop2h 41mUnited Airlines
Deal found 16/9£182
Sun 5/1007:10ORD - IAH
Nonstop2h 53mUnited Airlines
Tue 7/1021:35IAH - ORD
Nonstop2h 39mUnited Airlines
Deal found 17/9£188

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 September 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

Tue 7/10

07:10-10:03

Nonstop2h 53m

Houston George Bush Intcntl

Tue 7/10

18:50-21:36

Nonstop2h 46m

£115

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 21/10

15:58-18:52

Nonstop2h 54m

Houston George Bush Intcntl

Tue 21/10

21:35-00:14

Nonstop2h 39m

£163

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 22/10

10:35-13:28

Nonstop2h 53m

Houston George Bush Intcntl

Sat 25/10

07:20-10:10

Nonstop2h 50m

£166

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 1/11

15:43-18:43

Nonstop3h 00m

Houston George Bush Intcntl

Mon 3/11

20:30-23:10

Nonstop2h 40m

£166

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Thu 23/10

06:00-08:49

Nonstop2h 49m

Houston George Bush Intcntl

Mon 27/10

05:00-07:41

Nonstop2h 41m

£166

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 23/12

05:00-07:45

Nonstop2h 45m

Houston George Bush Intcntl

Wed 31/12

05:00-07:47

Nonstop2h 47m

£166

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 21/10

15:58-18:52

Nonstop2h 54m

Houston George Bush Intcntl

Thu 23/10

21:35-00:14

Nonstop2h 39m

£166

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 24/12

21:23-00:30

Nonstop3h 07m

Houston George Bush Intcntl

Tue 30/12

05:00-07:47

Nonstop2h 47m

£166

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 8/11

17:10-20:10

Nonstop3h 00m

Houston George Bush Intcntl

Sun 9/11

05:00-07:41

Nonstop2h 41m

£182

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 22/12

21:23-00:30

Nonstop3h 07m

Houston George Bush Intcntl

Wed 31/12

05:00-07:47

Nonstop2h 47m

£192

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 24 results
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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 12 September 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, February 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 £680). Flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in July is currently the most expensive (average of £1,096). 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 September 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 18% on flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport by exploring options for tickets at midday.

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 can get you from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in just under 2h 53m. 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 Envoy Air (93%), Avianca (86%) or Alaska Airlines (82%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport.

  • 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, February 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 £680). Flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in July is currently the most expensive (average of £1,096). 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

Travelling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
The Woodlands

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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.

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