What is the cheapest airline that flies from Houston George Bush Intcntl to Chicago?

Spirit Airlines, Frontier, and United Airlines are the most popular carriers operating from Houston George Bush Intcntl to Chicago

What airlines fly to Chicago?

Spirit Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Chicago from Houston George Bush Intcntl Airport according to our data. Spirit Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 5 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Chicago?

The number of operators available for flights from Houston George Bush Intcntl Airport to Chicago is 5 as of August 2025.

How old do you have to be to fly from Houston George Bush Intcntl Airport to Chicago?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Chicago.

What documentation or ID do you need to fly to Chicago?

The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$30 Cheap Flights from Houston George Bush Intcntl Airport to Chicago in 2025

Q: How many flights depart from Houston George Bush Intcntl Airport to Chicago on average per day?

39 flights are operational daily from Houston George Bush Intcntl Airport to Chicago as of August 2025. The most popular departure time for this route is 11:00AM, with 50% of flights per day taking off at noon.

Q: How many flights depart from Houston George Bush Intcntl Airport to Chicago on average per week?

As of August 2025, 278 flights take off from Houston George Bush Intcntl Airport and land in Chicago each week. The most common flight departure day for this route is Tue, with 23% of weekly flights taking off on this day.

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Find the cheapest flights from Houston George Bush Intcntl Airport to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:02 pm - 7:42 pmIAH-ORD

2h 40mnonstop

2:04 pm - 4:50 pmORD-IAH

2h 46mnonstop

$61Spirit Airlines

Find Deal

Wed, Sep 3 - Wed, Sep 10

10:23 am - 1:09 pmIAH-ORD

2h 46mnonstop

2:04 pm - 4:50 pmORD-IAH

2h 46mnonstop

$67Spirit Airlines

Find Deal

Tue, Sep 9 - Wed, Sep 10

5:02 pm - 7:42 pmIAH-ORD

2h 40mnonstop

8:56 pm - 11:45 pmORD-IAH

2h 49mnonstop

$75Spirit Airlines

Find Deal

Wed, Sep 3 - Sat, Sep 6

5:05 pm - 7:50 pmIAH-ORD

2h 45mnonstop

8:56 pm - 11:45 pmORD-IAH

2h 49mnonstop

$77Spirit Airlines

Find Deal

Sat, Sep 6 - Sat, Sep 6

8:28 pm - 11:19 pmIAH-ORD

2h 51mnonstop

12:42 pm - 3:37 pmORD-IAH

2h 55mnonstop

$84Frontier

Find Deal

Mon, Aug 25 - Thu, Aug 28

7:43 pm - 10:25 pmIAH-ORD

2h 42mnonstop

12:47 pm - 3:47 pmORD-IAH

3h 00mnonstop

$86Frontier

Find Deal

Fri, Oct 17 - Mon, Oct 20

8:00 pm - 10:45 pmIAH-ORD

2h 45mnonstop

2:04 pm - 4:50 pmORD-IAH

2h 46mnonstop

$92

Find Deal

Thu, Sep 4 - Tue, Sep 9

8:28 pm - 11:19 pmIAH-ORD

2h 51mnonstop

8:47 pm - 11:29 pmORD-IAH

2h 42mnonstop

$105

Find Deal

Mon, Aug 25 - Tue, Sep 2

12:51 pm - 6:37 pmIAH-MDW

5h 46m1 stop

6:17 pm - 11:27 pmMDW-IAH

5h 10m1 stop

$217Delta

Find Deal

Wed, Aug 27 - Wed, Sep 3

5:45 am - 11:48 amIAH-MDW

6h 03m1 stop

6:00 am - 12:02 pmMDW-IAH

6h 02m1 stop

$237Delta

Find Deal

Wed, Aug 20 - Wed, Aug 27

Frontier flights from Houston George Bush Intcntl Airport to Chicago

Our best Frontier deals on Houston George Bush Intcntl Airport to Chicago flight tickets

Frontier

Aug 25

IAH8:28 pmHouston George Bush Intcntl

2h 51m

ORD11:19 pmChicago O'Hare Intl

Aug 28

ORD12:42 pmChicago O'Hare Intl

2h 55m

IAH3:37 pmHouston George Bush Intcntl

$84

Find similar

Frontier

Oct 17

IAH7:43 pmHouston George Bush Intcntl

2h 42m

ORD10:25 pmChicago O'Hare Intl

Oct 20

ORD12:47 pmChicago O'Hare Intl

3h 00m

IAH3:47 pmHouston George Bush Intcntl

$86

Find similar

Frontier

Oct 10

IAH7:43 pmHouston George Bush Intcntl

2h 42m

ORD10:25 pmChicago O'Hare Intl

Oct 12

ORD12:47 pmChicago O'Hare Intl

3h 00m

IAH3:47 pmHouston George Bush Intcntl

$102

Find similar

Spirit Airlines flights from Houston George Bush Intcntl Airport to Chicago

Our best Spirit Airlines deals on Houston George Bush Intcntl Airport to Chicago flight tickets

Spirit Airlines

Sep 3

IAH5:02 pmHouston George Bush Intcntl

2h 40m

ORD7:42 pmChicago O'Hare Intl

Sep 10

ORD2:04 pmChicago O'Hare Intl

2h 46m

IAH4:50 pmHouston George Bush Intcntl

$61

Find similar

Spirit Airlines

Sep 9

IAH10:23 amHouston George Bush Intcntl

2h 46m

ORD1:09 pmChicago O'Hare Intl

Sep 10

ORD2:04 pmChicago O'Hare Intl

2h 46m

IAH4:50 pmHouston George Bush Intcntl

$67

Find similar

Spirit Airlines

Sep 3

IAH5:02 pmHouston George Bush Intcntl

2h 40m

ORD7:42 pmChicago O'Hare Intl

Sep 6

ORD8:56 pmChicago O'Hare Intl

2h 49m

IAH11:45 pmHouston George Bush Intcntl

$75

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 9/3

5:02 pm-7:42 pm

Nonstop2h 40m

Chicago O'Hare Intl

Wed 9/10

2:04 pm-4:50 pm

Nonstop2h 46m

$61

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 9/9

10:23 am-1:09 pm

Nonstop2h 46m

Chicago O'Hare Intl

Wed 9/10

2:04 pm-4:50 pm

Nonstop2h 46m

$67

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 9/3

5:02 pm-7:42 pm

Nonstop2h 40m

Chicago O'Hare Intl

Sat 9/6

8:56 pm-11:45 pm

Nonstop2h 49m

$75

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 9/6

5:05 pm-7:50 pm

Nonstop2h 45m

Chicago O'Hare Intl

Sat 9/6

8:56 pm-11:45 pm

Nonstop2h 49m

$77

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 8/25

8:28 pm-11:19 pm

Nonstop2h 51m

Chicago O'Hare Intl

Thu 8/28

12:42 pm-3:37 pm

Nonstop2h 55m

$84

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 10/17

7:43 pm-10:25 pm

Nonstop2h 42m

Chicago O'Hare Intl

Mon 10/20

12:47 pm-3:47 pm

Nonstop3h 00m

$86

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 9/4

8:00 pm-10:45 pm

Nonstop2h 45m

Chicago O'Hare Intl

Tue 9/9

2:04 pm-4:50 pm

Nonstop2h 46m

$92

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 8/25

8:28 pm-11:19 pm

Nonstop2h 51m

Chicago O'Hare Intl

Tue 9/2

8:47 pm-11:29 pm

Nonstop2h 42m

$105

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Wed 8/27

12:51 pm-6:37 pm

1 stop5h 46m

Chicago Midway

Wed 9/3

6:17 pm-11:27 pm

1 stop5h 10m

$217

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Wed 8/20

5:45 am-11:48 am

1 stop6h 03m

Chicago Midway

Wed 8/27

6:00 am-12:02 pm

1 stop6h 02m

$237

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Chicago?

The month of September is, on average, the cheapest month to fly to Chicago from Houston George Bush Intcntl Airport, with most prices found around $121. If you’re not able to fly to Chicago in September, then March is your next best option. Flight prices from Houston George Bush Intcntl Airport to Chicago during March average around $141.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $270. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Houston George Bush Intcntl Airport to Chicago for around $413.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Houston George Bush Intcntl Airport to Chicago during this time can be as low as $195. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $755.

What is the cheapest Houston George Bush Intcntl to Chicago flight route?

Fly from Houston George Bush Intcntl to Chicago O'Hare Intl for the best Houston George Bush Intcntl - Chicago flight prices

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $226 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Houston George Bush Intcntl Airport for as low as $146 on momondo.

What cabin class options are available on Houston George Bush Intcntl to Chicago flights?

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Houston George Bush Intcntl Airport to Chicago flights?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to Chicago.

How have Houston George Bush Intcntl Airport to Chicago flight prices changed over time?

As of August 2025, prices for Houston George Bush Intcntl Airport to Chicago flights are approximately 51% cheaper when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Chicago (IAH to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Chicago

Best Price Found	$30
Fastest flight time	2h 28m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Chicago	2 airports

The best one-way flight to Chicago from Houston George Bush Intcntl Airport in the past 72 hours is $30. The best round-trip flight deal from Houston George Bush Intcntl Airport to Chicago found on momondo in the last 72 hours is $61.

The fastest flight from Houston George Bush Intcntl Airport to Chicago takes 2h 28m

Direct flights go from Houston George Bush Intcntl Airport to Chicago on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Spirit Airlines and Frontier.

There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

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How far is Houston George Bush Intcntl to Chicago by plane?
The straight-line distance from Houston George Bush Intcntl to Chicago is 926.3 mi. By plane, this route typically takes 2h 28m.
When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Chicago?
Prices for flights from Houston George Bush Intcntl Airport to Chicago refresh daily.
How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Chicago?
The number of operators available for flights from Houston George Bush Intcntl Airport to Chicago is 5 as of August 2025.
How old do you have to be to fly from Houston George Bush Intcntl Airport to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Houston George Bush Intcntl Airport to Chicago?
Based on momondo bookings for flights between Houston George Bush Intcntl Airport and Chicago, the leading plane model is Airbus A321neo, making up 13.65% of the total bookings. Other popular models include Airbus A320neo with 13.13%, Boeing 737-900 with 12.96%, and Airbus A320 (sharklets) with 10.86%.
What is the most popular airline from Houston George Bush Intcntl Airport to Chicago?
momondo data reveals that the most frequently booked airline on the route from Houston George Bush Intcntl Airport to Chicago is Frontier, representing 44% of all bookings. The subsequent popular airlines are Spirit Airlines at 22%, United Airlines at 17%, and American Airlines at 16%.

Best airlines flying from Houston George Bush Intcntl Airport to Chicago

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $64	Free Cancellation	Rating 5.8 3,232 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $70	Free Cancellation	Rating 6.3 8,051 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $157	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $176	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights

United Airlines Flights From Houston George Bush Intcntl Airport to Chicago
United Airlines operates around 87 flights from Houston George Bush Intcntl Airport to Chicago every week. The average price of these flights found in the last 72 hours has been $358, but momondo users have found United Airlines deals from Houston George Bush Intcntl Airport to Chicago from as low as $176 round-trip. United Airlines has been scored 7.4/10 in 8,916 reviews.
American Airlines Flights From Houston George Bush Intcntl Airport to Chicago
Another popular option for Houston George Bush Intcntl Airport to Chicago flights is American Airlines (7.2/10, 10,000 ratings). American Airlines flies from Houston George Bush Intcntl Airport to Chicago around 6 times per week, with deals starting from $157 round-trip and rising to an average price of around $257.

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Saint Joseph

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Munster

Chesterton

Monticello

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Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Chicago?

Finding the right flight to Chicago from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

Can I find flights from Houston to Chicago with flexible booking policies on momondo?

Yes. All flights to Chicago from Houston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Houston to Chicago?

momondo helps you find the best flight between Houston and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to Chicago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Houston to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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Cheap flights from Houston George Bush Intcntl Airport to Chicago from $30

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Find the cheapest flights from Houston George Bush Intcntl Airport to Chicago

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Frontier flights from Houston George Bush Intcntl Airport to Chicago

Our best Frontier deals on Houston George Bush Intcntl Airport to Chicago flight tickets

Spirit Airlines flights from Houston George Bush Intcntl Airport to Chicago

Our best Spirit Airlines deals on Houston George Bush Intcntl Airport to Chicago flight tickets

momondo Fare Finder

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

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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

What is the cheapest day to depart on your flight to Chicago?

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Houston George Bush Intcntl Airport to Chicago during this time can be as low as $195. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $755.

What is the cheapest Houston George Bush Intcntl to Chicago flight route?

Fly from Houston George Bush Intcntl to Chicago O'Hare Intl for the best Houston George Bush Intcntl - Chicago flight prices

How far in advance should I book a flight to Chicago?

What cabin class options are available on Houston George Bush Intcntl to Chicago flights?

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Houston George Bush Intcntl Airport to Chicago flights?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to Chicago.

How have Houston George Bush Intcntl Airport to Chicago flight prices changed over time?

As of August 2025, prices for Houston George Bush Intcntl Airport to Chicago flights are approximately 51% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Houston George Bush Intcntl to Chicago?

Spirit Airlines, Frontier, and United Airlines are the most popular carriers operating from Houston George Bush Intcntl to Chicago

What airlines fly to Chicago?

How many flights depart from Houston George Bush Intcntl Airport to Chicago on average per day?

39 flights are operational daily from Houston George Bush Intcntl Airport to Chicago as of August 2025. The most popular departure time for this route is 11:00AM, with 50% of flights per day taking off at noon.

How many flights depart from Houston George Bush Intcntl Airport to Chicago on average per week?

As of August 2025, 278 flights take off from Houston George Bush Intcntl Airport and land in Chicago each week. The most common flight departure day for this route is Tue, with 23% of weekly flights taking off on this day.

When to book flights from Houston George Bush Intcntl Airport to Chicago

Cheap Houston George Bush Intcntl Airport to Chicago (IAH to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Chicago

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

How far is Houston George Bush Intcntl to Chicago by plane?

When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Chicago?

How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Chicago?

How old do you have to be to fly from Houston George Bush Intcntl Airport to Chicago?

What documentation or ID do you need to fly to Chicago?

What is the most popular plane model from Houston George Bush Intcntl Airport to Chicago?

What is the most popular airline from Houston George Bush Intcntl Airport to Chicago?

Best airlines flying from Houston George Bush Intcntl Airport to Chicago

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Chicago with momondo

United Airlines Flights From Houston George Bush Intcntl Airport to Chicago

American Airlines Flights From Houston George Bush Intcntl Airport to Chicago

Traveling to a place near Chicago?

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Chicago?

Can I find flights from Houston to Chicago with flexible booking policies on momondo?

How can momondo help me find flights from Houston to Chicago?

I’m not ready to book a flight from Houston to Chicago right now. Can momondo alert me if prices change?

An easier way to manage your Chicago trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago