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 31% 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.

What is the most punctual flight time for Houston to Chicago flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on Houston to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

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

How often are flights from Houston to Chicago delayed?

Historically, on average around 12% of flights between Houston and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

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.

$48 Cheap Flights from Houston George Bush Intcntl Airport to Chicago in 2025/26

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

37 flights are operational daily from Houston George Bush Intcntl Airport to Chicago as of December 2025. The most popular departure time for this route is 11:00AM, with 48% of flights per day taking off at noon.

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10:26 am - 1:20 pm

IAH

ORD

2h 54mnonstop

12:01 pm - 9:13 pm

ORD

IAH

9h 12m1 stop

$93Frontier

Fri, Feb 20 - Mon, Feb 23

6:05 am - 11:35 am

IAH

ORD

5h 30m1 stop

6:30 am - 9:31 am

ORD

IAH

3h 01mnonstop

$94Frontier

Mon, Jan 12 - Fri, Jan 16

6:51 pm - 9:29 pm

IAH

MDW

2h 38mnonstop

6:45 am - 9:45 am

MDW

IAH

3h 00mnonstop

$95Frontier

Fri, Feb 27 - Mon, Mar 2

11:38 am - 2:17 pm

IAH

ORD

2h 39mnonstop

8:05 am - 11:29 am

ORD

IAH

3h 24mnonstop

$95Multiple Airlines

Tue, Feb 10 - Sat, Feb 14

5:30 pm - 8:04 pm

IAH

ORD

2h 34mnonstop

9:09 pm - 11:59 pm

ORD

IAH

2h 50mnonstop

$96Spirit Airlines

Wed, Dec 31 - Tue, Jan 6

11:38 am - 2:17 pm

IAH

ORD

2h 39mnonstop

12:44 pm - 7:24 pm

ORD

IAH

6h 40m1 stop

$97Spirit Airlines

Fri, Jan 23 - Sat, Jan 24

6:05 am - 11:35 am

IAH

ORD

5h 30m1 stop

1:20 pm - 8:06 pm

ORD

IAH

6h 46m1 stop

$98Frontier

Thu, Jan 8 - Tue, Jan 13

5:30 pm - 8:04 pm

IAH

ORD

2h 34mnonstop

8:43 pm - 8:40 am

ORD

IAH

11h 57m1 stop

$99Spirit Airlines

Wed, Jan 7 - Thu, Jan 8

11:44 am - 2:23 pm

IAH

ORD

2h 39mnonstop

3:28 pm - 6:28 pm

ORD

IAH

3h 00mnonstop

$100Spirit Airlines

Sun, Feb 15 - Wed, Feb 18

6:15 am - 4:52 pm

IAH

ORD

10h 37m1 stop

8:05 am - 11:29 am

ORD

IAH

3h 24mnonstop

$101Frontier

Wed, Feb 11 - Sat, Feb 14

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

Feb 20

IAH10:26 amHouston George Bush Intcntl

2h 54m

ORD1:20 pmChicago O'Hare Intl

Feb 23

ORD12:01 pmChicago O'Hare Intl

9h 12m

1 stop

IAH9:13 pmHouston George Bush Intcntl

$93

Find similar

Frontier

Jan 12

IAH6:05 amHouston George Bush Intcntl

5h 30m

1 stop

ORD11:35 amChicago O'Hare Intl

Jan 16

ORD6:30 amChicago O'Hare Intl

3h 01m

IAH9:31 amHouston George Bush Intcntl

$94

Find similar

Frontier

Feb 27

IAH6:51 pmHouston George Bush Intcntl

2h 38m

MDW9:29 pmChicago Midway

Mar 2

MDW6:45 amChicago Midway

3h 00m

IAH9:45 amHouston George Bush Intcntl

$95

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

Dec 31

IAH5:30 pmHouston George Bush Intcntl

2h 34m

ORD8:04 pmChicago O'Hare Intl

Jan 6

ORD9:09 pmChicago O'Hare Intl

2h 50m

IAH11:59 pmHouston George Bush Intcntl

$96

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Spirit Airlines

Jan 23

IAH11:38 amHouston George Bush Intcntl

2h 39m

ORD2:17 pmChicago O'Hare Intl

Jan 24

ORD12:44 pmChicago O'Hare Intl

6h 40m

1 stop

IAH7:24 pmHouston George Bush Intcntl

$97

Find similar

Spirit Airlines

Jan 7

IAH5:30 pmHouston George Bush Intcntl

2h 34m

ORD8:04 pmChicago O'Hare Intl

Jan 9

ORD9:23 amChicago O'Hare Intl

13h 33m

1 stop

IAH10:56 pmHouston George Bush Intcntl

$99

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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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Route

Depart

Return

Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 2/20

10:26 am-1:20 pm

Nonstop2h 54m

Chicago O'Hare Intl

Mon 2/23

12:01 pm-9:13 pm

1 stop9h 12m

$93

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 1/12

6:05 am-11:35 am

1 stop5h 30m

Chicago O'Hare Intl

Fri 1/16

6:30 am-9:31 am

Nonstop3h 01m

$94

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 2/27

6:51 pm-9:29 pm

Nonstop2h 38m

Chicago Midway

Mon 3/2

6:45 am-9:45 am

Nonstop3h 00m

$95

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 2/10

11:38 am-2:17 pm

Nonstop2h 39m

Chicago O'Hare Intl

Sat 2/14

8:05 am-11:29 am

Nonstop3h 24m

$95

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 12/31

5:30 pm-8:04 pm

Nonstop2h 34m

Chicago O'Hare Intl

Tue 1/6

9:09 pm-11:59 pm

Nonstop2h 50m

$96

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 1/23

11:38 am-2:17 pm

Nonstop2h 39m

Chicago O'Hare Intl

Sat 1/24

12:44 pm-7:24 pm

1 stop6h 40m

$97

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 1/8

6:05 am-11:35 am

1 stop5h 30m

Chicago O'Hare Intl

Tue 1/13

1:20 pm-8:06 pm

1 stop6h 46m

$98

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 1/7

5:30 pm-8:04 pm

Nonstop2h 34m

Chicago O'Hare Intl

Thu 1/8

8:43 pm-8:40 am

1 stop11h 57m

$99

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sun 2/15

11:44 am-2:23 pm

Nonstop2h 39m

Chicago O'Hare Intl

Wed 2/18

3:28 pm-6:28 pm

Nonstop3h 00m

$100

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 2/11

6:15 am-4:52 pm

1 stop10h 37m

Chicago O'Hare Intl

Sat 2/14

8:05 am-11:29 am

Nonstop3h 24m

$101

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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

Delays

Other information

What is the typical price of a round-trip flight between Houston George Bush Intcntl Airport and Chicago?

What is the cheapest month to fly to Chicago?

The month of March is, on average, the cheapest month to fly to Chicago from Houston George Bush Intcntl Airport, with most prices found around $136. If you’re not able to fly to Chicago in March, then January is your next best option. Flight prices from Houston George Bush Intcntl Airport to Chicago during January average around $144.

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 $387.

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 $211. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $765.

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

Fly from Houston George Bush Intcntl to Chicago Midway 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 $224 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 $163 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 December 2025, prices for Houston George Bush Intcntl Airport to Chicago flights are approximately 13% 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	$105
Fastest flight time	2h 26m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Chicago	3 airports

The best one-way flight to Chicago from Houston George Bush Intcntl Airport in the past 72 hours is $105. The best round-trip flight deal from Houston George Bush Intcntl Airport to Chicago found on momondo in the last 72 hours is $143.

The fastest flight from Houston George Bush Intcntl Airport to Chicago takes 2h 26m

Direct flights go from Houston George Bush Intcntl Airport to Chicago on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Frontier.

There are 3 airports in Chicago. From Houston George Bush Intcntl Airport there are direct flights to 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 26m.
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 December 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 21.12% of the total bookings. Other popular models include Boeing 737-900 with 12.12%, Airbus A320neo with 9.89%, and Boeing 737 MAX 9 with 9.09%.
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 37% of all bookings. The subsequent popular airlines are Spirit Airlines at 26%, United Airlines at 20%, and American Airlines at 17%.

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 $76	Free Cancellation	Rating 5.8 3,080 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $84	Free Cancellation	Rating 6.3 8,187 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $159	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights
United Airlines	PriceFrom $176	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights

United Airlines Flights From Houston George Bush Intcntl Airport to Chicago
United Airlines operates around 63 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 $351, 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 9,092 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, 11,052 ratings). American Airlines flies from Houston George Bush Intcntl Airport to Chicago around 12 times per week, with deals starting from $159 round-trip and rising to an average price of around $267.

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Saint Joseph

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Munster

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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 $48

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Frontier flights from Houston George Bush Intcntl Airport to Chicago

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See travel insights to Chicago from

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

What is the typical price of a round-trip flight between Houston George Bush Intcntl Airport and Chicago?

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 $211. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $765.

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

Fly from Houston George Bush Intcntl to Chicago Midway 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 December 2025, prices for Houston George Bush Intcntl Airport to Chicago flights are approximately 13% 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?

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

What airlines fly to Chicago?

How often are flights from Houston to Chicago delayed?

Historically, on average around 12% of flights between Houston and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

What is the most punctual flight time for Houston to Chicago flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Houston to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

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

37 flights are operational daily from Houston George Bush Intcntl Airport to Chicago as of December 2025. The most popular departure time for this route is 11:00AM, with 48% 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 December 2025, 259 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 Mon, with 22% 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