In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular airlines that fly from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?

The most popular airlines flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport are American Airlines, Frontier and Spirit Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?

Users have found that flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

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

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

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

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

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

$65+ Flights from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport

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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Chicago O'Hare Intl are usually found in September or August, booked 71 days in advance, depart on a Friday or Thursday and return on a Thursday

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

Round-trip from	$116 (Kiwi.com)
One-way from	$65 (Frontier)
Popular in	July
Cheapest in	September
Average price	$281
Good round-trip deal	$200 or less
Good one-way deal	$116 or less

From Houston George Bush Intcntl to Chicago O'Hare Intl

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One-way flight from Houston George Bush Intcntl to Chicago O'Hare Intl

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Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Houston George Bush Intcntl to Chicago O'Hare Intl.

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

Cheapest flights from George Bush Intcntl to O'Hare Intl
Explore the most affordable flight options available from George Bush Intcntl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Tue 8/195:02 pmIAH - ORD

Nonstop2h 40mSpirit Airlines

Tue 8/268:47 pmORD - IAH

Nonstop2h 42mSpirit Airlines

Deal found 7/24

$116

Mon 8/1810:05 amIAH - ORD

Nonstop2h 44mMultiple Airlines

Thu 10/238:56 pmORD - IAH

Nonstop2h 49mMultiple Airlines

Deal found 7/23

$119

Thu 8/1410:05 amIAH - ORD

Nonstop2h 44mFrontier

Sun 8/176:30 amORD - IAH

Nonstop2h 50mFrontier

Deal found 7/22

$120

Best flights from George Bush Intcntl to O'Hare Intl
Discover carefully curated flight deals from George Bush Intcntl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 25, 2025.

Tue 8/195:02 pmIAH - ORD

Nonstop2h 40mSpirit Airlines

Tue 8/268:47 pmORD - IAH

Nonstop2h 42mSpirit Airlines

Deal found 7/24

$116

Mon 8/1810:05 amIAH - ORD

Nonstop2h 44mMultiple Airlines

Thu 10/238:56 pmORD - IAH

Nonstop2h 49mMultiple Airlines

Deal found 7/23

$119

Thu 8/1410:05 amIAH - ORD

Nonstop2h 44mFrontier

Sun 8/176:30 amORD - IAH

Nonstop2h 50mFrontier

Deal found 7/22

$120

Last-minute flights from George Bush Intcntl to O'Hare Intl
Discover last-minute flight deals from George Bush Intcntl to O'Hare Intl. Data last updated July 25, 2025 and is based on user searches.

Wed 7/308:00 amIAH - ORD

1 stop8h 04mMultiple Airlines

Sat 8/168:47 pmORD - IAH

Nonstop2h 42mMultiple Airlines

Deal found 7/23

$165

Wed 7/308:00 amIAH - ORD

1 stop8h 04mFrontier

Mon 8/186:30 amORD - IAH

Nonstop2h 50mFrontier

Deal found 7/23

$173

Sun 8/35:15 amIAH - ORD

Nonstop2h 35mSpirit Airlines

Thu 8/148:47 pmORD - IAH

Nonstop2h 42mSpirit Airlines

Deal found 7/24

$163

Thu 8/1410:05 amIAH - ORD

Nonstop2h 44mFrontier

Sun 8/176:30 amORD - IAH

Nonstop2h 50mFrontier

Deal found 7/22

$120

Mon 8/1810:05 amIAH - ORD

Nonstop2h 44mMultiple Airlines

Thu 10/238:56 pmORD - IAH

Nonstop2h 49mMultiple Airlines

Deal found 7/23

$119

Tue 8/195:02 pmIAH - ORD

Nonstop2h 40mSpirit Airlines

Tue 8/268:47 pmORD - IAH

Nonstop2h 42mSpirit Airlines

Deal found 7/24

$116

One-way flights from George Bush Intcntl to O'Hare Intl
Search for one-way flight options from George Bush Intcntl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated July 25, 2025.

Thu 8/284:22 pmIAH - ORD

Nonstop2h 55mFrontier

Deal found 7/22

$65

Thu 8/146:40 amIAH - ORD

1 stop9h 46mSpirit Airlines

Deal found 7/24

$66

Tue 10/147:50 pmIAH - ORD

Nonstop2h 47mUnited Airlines

Deal found 7/22

$79

Tue 9/2311:30 amIAH - ORD

1 stop5h 01mDelta

Deal found 7/22

$109

Mon 1/56:25 amIAH - ORD

Nonstop2h 40mAmerican Airlines

Deal found 7/22

$114

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 8/19

5:02 pm-7:42 pm

Nonstop2h 40m

Chicago O'Hare Intl

Tue 8/26

8:47 pm-11:29 pm

Nonstop2h 42m

$116

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 8/18

5:02 pm-7:42 pm

Nonstop2h 40m

Chicago O'Hare Intl

Sat 10/25

12:47 pm-3:47 pm

Nonstop3h 00m

$119

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 8/15

10:05 am-12:49 pm

Nonstop2h 44m

Chicago O'Hare Intl

Mon 8/18

6:30 am-9:20 am

Nonstop2h 50m

$122

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 8/28

4:22 pm-7:17 pm

Nonstop2h 55m

$65

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 8/14

6:40 am-4:26 pm

1 stop9h 46m

$66

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 8/13

8:00 am-4:26 pm

1 stop8h 26m

$75

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 9/1

6:00 am-8:45 am

Nonstop2h 45m

$79

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 8/23

6:30 am-9:24 am

Nonstop2h 54m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

The best insider tips for Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport trip

Airlines

Spirit Airlines

Spirit's Big Front Seats offer wider seats and more legroom.

Spirit's Wi-Fi plans allow streaming; book ahead for savings.

Read more about Spirit Airlinesby Daniel Scheffler

United Airlines

United's Economy Plus offers extra legroom, ideal for comfort on short flights.

United's Polaris Lounges offer showers and dining, enhancing pre-flight comfort.

Read more about United Airlinesby Harriet Baskas

Frontier

Frontier's UpFront Plus seats offer extra space and an empty middle seat.

Early check-in helps secure your spot on overbooked Frontier flights.

Read more about Frontierby Marisa Garcia

Airports

IAH

Check the IAH website for current security wait times to ensure a smooth departure experience.

ORD

For a quick city transfer, take the “L” train from ORD to downtown Chicago, avoiding traffic delays.

Our travel experts

Daniel Scheffler

Expert on Spirit Airlines

Harriet Baskas

Expert on United Airlines

Marisa Garcia

Expert on Frontier

Ramsey Qubein

Expert on ORD

Evie Carrick

Expert on IAH

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

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from George Bush Intcntl with our price prediction graph.

Estimated round-trip 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 Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport

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

The best time to book flights from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport is 71 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 Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 IAH to ORD?

When flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 75% versus a flight at noon.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport

The most flights from IAH to ORD are scheduled on a Thursday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

Reviews of airlines servicing O'Hare Intl

See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,967 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,967 reviews

Delta

8.0

Very good

7,967 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,876 reviews

Delta

8.0

Very good

7,967 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,967 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Spirit Airlines

6.3

Okay

8,038 reviews

Delta

8.0

Very good

7,967 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,244 reviews

Delta

8.0

Very good

7,967 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport round-trip?
Currently priced at $116, Spirit Airlines will fly you from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Frontier for as low as $120. Spirit Airlines is 48% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport one-way?
$65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and United Airlines, with prices starting from $66 and $79, respectively.
What are the most reliable airlines from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?
Before booking your flight to Chicago O'Hare Intl Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (100%), ANA (85%), Cathay Pacific( 82%).
What are the cheapest flights from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?
On average you can expect to pay $1,418 for a flight from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport. The cheapest flight overall is $63 while the most popular route, (Houston George Bush Intcntl - Chicago O'Hare Intl) is currently priced at $68.
Can I find deals for flights from George Bush Intcntl to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to O'Hare Intl.
Can I find deals for business class flights from George Bush Intcntl to O'Hare Intl?
Yes. Cheapflights offers flight deals from George Bush Intcntl to O'Hare Intl 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 Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

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Top 4 airlines flying from George Bush Intcntl to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$65	Average$165	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$68	Average$168	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$157	Average$257	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$176	Average$356	FlexibilityNo cancel fee	On-time69%

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$65+ Cheap flights from George Bush Intcntl (IAH) to O'Hare Intl (ORD)

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from George Bush Intcntl to O'Hare Intl with Cheapflights

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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Chicago O'Hare Intl are usually found in September or August, booked 71 days in advance, depart on a Friday or Thursday and return on a Thursday

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

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Cheapest flights from George Bush Intcntl to O'Hare IntlExplore the most affordable flight options available from George Bush Intcntl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Explore the most affordable flight options available from George Bush Intcntl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport that are best for you.

The best insider tips for Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport trip

Airlines

Spirit Airlines

United Airlines

Frontier

Airports

IAH

ORD

Our travel experts

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

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from George Bush Intcntl with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to O'Hare Intl. Price data was last updated on July 18, 2025.

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

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

Find hourly flight availability from George Bush Intcntl to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2025.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to O'Hare Intl. Price data was last updated on July 20, 2025.

Weekly flight availability from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport

Reviews of airlines servicing O'Hare Intl

Related info for your journey

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

What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport round-trip?

What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Chicago O'Hare Intl Airport one-way?

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

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

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

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

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

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

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Top 4 airlines flying from George Bush Intcntl to O'Hare Intl

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Cheapest flights from George Bush Intcntl to O'Hare Intl
Explore the most affordable flight options available from George Bush Intcntl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.