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Cheap flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport from £39

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 5 February 2026.

Wed 4/309:18
ORD
-
IAH
Nonstop3h 06m
Spirit Airlines
Wed 11/313:59
IAH
-
ORD
Nonstop2h 41m
Spirit Airlines
Deal found 2/2£66
Tue 24/316:51
ORD
-
IAH
1 stop6h 58m
Spirit Airlines
Thu 26/311:41
IAH
-
ORD
Nonstop2h 35m
Spirit Airlines
Deal found 3/2£73
Thu 26/307:17
ORD
-
IAH
1 stop13h 17m
Spirit Airlines
Wed 1/406:14
IAH
-
ORD
Nonstop2h 36m
Spirit Airlines
Deal found 3/2£104
Sat 7/320:10
ORD
-
IAH
Nonstop3h 03m
United Airlines
Tue 10/320:21
IAH
-
ORD
Nonstop2h 47m
United Airlines
Deal found 3/2£115
Mon 9/314:10
ORD
-
IAH
Nonstop3h 08m
United Airlines
Wed 11/318:45
IAH
-
ORD
Nonstop2h 53m
United Airlines
Deal found 4/2£129
Sat 28/321:15
ORD
-
IAH
Nonstop2h 54m
United Airlines
Sat 4/406:15
IAH
-
ORD
Nonstop2h 45m
United Airlines
Deal found 1/2£136
Sat 21/318:20
ORD
-
IAH
Nonstop3h 02m
United Airlines
Sat 28/305:00
IAH
-
ORD
Nonstop2h 43m
United Airlines
Deal found 2/2£140
Fri 6/321:15
ORD
-
IAH
Nonstop2h 54m
United Airlines
Sat 14/308:23
IAH
-
ORD
Nonstop2h 47m
United Airlines
Deal found 3/2£142
Wed 11/321:15
ORD
-
IAH
Nonstop2h 54m
United Airlines
Mon 16/321:30
IAH
-
ORD
Nonstop2h 29m
United Airlines
Deal found 2/2£144

Find 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 5 February 2026.

Round-trip from

£66

One-way from

£39

Popular in

March

Cheapest in

August

Average price

£147

Good round-trip deal

£202 or less

Good one-way deal

£129 or less
Spirit Airlines
  • Spirit Airlines
  • 4/3-11/3
  • Nonstop
  • 5h 47m total
  • Chicago to Houston
Search Deals
Spirit Airlines
  • Spirit Airlines
  • 17/3
  • Nonstop
  • 2h 56m total
  • Chicago to Houston
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Houston George Bush Intcntl.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Houston George Bush Intcntl.
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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 5 February 2026.
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

Thu 26/3

07:17-20:34

1 stop13h 17m

Houston George Bush Intcntl

Wed 1/4

06:14-08:50

Nonstop2h 36m

£104

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 21/3

18:20-21:22

Nonstop3h 02m

Houston George Bush Intcntl

Sat 28/3

05:00-07:43

Nonstop2h 43m

£140

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 24/3

21:15-00:09

Nonstop2h 54m

Houston George Bush Intcntl

Tue 31/3

06:15-09:00

Nonstop2h 45m

£140

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 3/3

05:45-08:46

Nonstop3h 01m

Houston George Bush Intcntl

Fri 6/3

05:00-07:46

Nonstop2h 46m

£144

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 10/3

17:40-22:59

1 stop5h 19m

Houston George Bush Intcntl

Tue 24/3

14:09-19:49

1 stop5h 40m

£151

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Tue 24/3

17:59-23:59

1 stop6h 00m

Houston George Bush Intcntl

Tue 31/3

06:30-11:35

1 stop5h 05m

£159

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Wed 25/3

17:40-22:59

1 stop5h 19m

Houston George Bush Intcntl

Wed 1/4

06:30-11:35

1 stop5h 05m

£159

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Sat 28/2

18:30-00:11

1 stop5h 41m

Houston George Bush Intcntl

Tue 3/3

05:30-13:20

1 stop7h 50m

£159

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 23/3

09:50-15:03

1 stop5h 13m

Houston George Bush Intcntl

Tue 31/3

06:30-11:35

1 stop5h 05m

£173

ChicagoHouston

ORD - IAH

ORDIAH

Chicago O'Hare Intl

Mon 23/3

17:40-22:59

1 stop5h 19m

Houston George Bush Intcntl

Wed 1/4

06:30-11:35

1 stop5h 05m

£173

Flights are sorted by cheapest return flights first.

Deals found on 2/2

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 30 January 2026.

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 £41). Flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in June is currently the most expensive (average of £96). 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 5 February 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 45% on flights from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport by exploring options for tickets at midday.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport?

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?

    Spirit Airlines, United Airlines, and Delta can get you from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in just under 3h 02m. Your travel time can differ by up to 10h 15m. The distance between Chicago O'Hare Intl Airport and Houston George Bush Intcntl Airport is about 926 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Consider CommutAir (100%), Avianca (92%) or United Airlines (85%) 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 £52. On average you can expect to pay £203. The most popular route, (Chicago O'Hare Intl - Houston George Bush Intcntl), can usually be booked for £144.

  • 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 £41). Flying from Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport in June is currently the most expensive (average of £96). 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.

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

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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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