What airlines fly to Chicago?

Spirit Airlines, United Airlines and Frontier 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.

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

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

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 10% of their flights experiencing any sort of delay.

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.

How often are flights from Houston to Chicago delayed?

Historically, on average around 13% 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 159 minutes.

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

Thursday 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.

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.

$44 Cheap Flights from Houston George Bush Intcntl Airport to Chicago in 2026

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

As of February 2026, 275 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 Thu, with 17% of weekly flights taking off on this day.

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4:51 pm - 7:45 pm

IAH

ORD

2h 54mnonstop

9:18 am - 12:24 pm

ORD

IAH

3h 06mnonstop

$77Multiple Airlines

Fri, Mar 6 - Tue, Mar 10

1:43 pm - 4:13 pm

IAH

MDW

2h 30mnonstop

10:00 am - 12:58 pm

MDW

IAH

2h 58mnonstop

$77Frontier

Fri, Mar 6 - Mon, Mar 9

4:51 pm - 7:45 pm

IAH

ORD

2h 54mnonstop

5:15 am - 8:31 am

ORD

IAH

3h 16mnonstop

$78Frontier

Fri, Mar 6 - Mon, Mar 9

1:43 pm - 4:13 pm

IAH

MDW

2h 30mnonstop

10:00 am - 12:58 pm

MDW

IAH

2h 58mnonstop

$78Frontier

Fri, Mar 6 - Mon, Mar 9

5:15 am - 7:54 am

IAH

ORD

2h 39mnonstop

9:18 am - 12:24 pm

ORD

IAH

3h 06mnonstop

$79Spirit Airlines

Sat, Mar 7 - Tue, Mar 10

6:51 pm - 9:29 pm

IAH

MDW

2h 38mnonstop

3:00 pm - 6:06 pm

MDW

IAH

3h 06mnonstop

$79Frontier

Fri, Feb 20 - Sun, Feb 22

10:26 am - 1:20 pm

IAH

ORD

2h 54mnonstop

7:35 am - 10:57 am

ORD

IAH

3h 22mnonstop

$80Frontier

Fri, Feb 20 - Mon, Feb 23

5:15 am - 7:54 am

IAH

ORD

2h 39mnonstop

8:59 am - 12:00 pm

ORD

IAH

3h 01mnonstop

$81Spirit Airlines

Thu, Feb 19 - Mon, Feb 23

3:37 pm - 6:18 pm

IAH

ORD

2h 41mnonstop

9:18 am - 12:24 pm

ORD

IAH

3h 06mnonstop

$82Spirit Airlines

Tue, Feb 24 - Wed, Feb 25

5:15 am - 7:54 am

IAH

ORD

2h 39mnonstop

8:05 am - 11:29 am

ORD

IAH

3h 24mnonstop

$84Multiple Airlines

Fri, Feb 20 - Sat, Feb 28

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

Mar 6

IAH1:43 pmHouston George Bush Intcntl

2h 30m

MDW4:13 pmChicago Midway

Mar 9

MDW10:00 amChicago Midway

2h 58m

IAH12:58 pmHouston George Bush Intcntl

$77

Frontier

Mar 6

IAH4:51 pmHouston George Bush Intcntl

2h 54m

ORD7:45 pmChicago O'Hare Intl

Mar 9

ORD5:15 amChicago O'Hare Intl

3h 16m

IAH8:31 amHouston George Bush Intcntl

$78

Frontier

Feb 20

IAH6:51 pmHouston George Bush Intcntl

2h 38m

MDW9:29 pmChicago Midway

Feb 22

MDW3:00 pmChicago Midway

3h 06m

IAH6:06 pmHouston George Bush Intcntl

$79

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

Mar 7

IAH5:15 amHouston George Bush Intcntl

2h 39m

ORD7:54 amChicago O'Hare Intl

Mar 10

ORD9:18 amChicago O'Hare Intl

3h 06m

IAH12:24 pmHouston George Bush Intcntl

$79

Spirit Airlines

Feb 19

IAH5:15 amHouston George Bush Intcntl

2h 39m

ORD7:54 amChicago O'Hare Intl

Feb 23

ORD8:59 amChicago O'Hare Intl

3h 01m

IAH12:00 pmHouston George Bush Intcntl

$81

Spirit Airlines

Feb 24

IAH3:37 pmHouston George Bush Intcntl

2h 41m

ORD6:18 pmChicago O'Hare Intl

Feb 25

ORD9:18 amChicago O'Hare Intl

3h 06m

IAH12:24 pmHouston George Bush Intcntl

$82

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

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Price

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 3/6

4:51 pm-7:45 pm

Nonstop2h 54m

Chicago O'Hare Intl

Tue 3/10

9:18 am-12:24 pm

Nonstop3h 06m

$77

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 3/6

1:43 pm-4:13 pm

Nonstop2h 30m

Chicago Midway

Mon 3/9

10:00 am-12:58 pm

Nonstop2h 58m

$77

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 3/6

4:51 pm-7:45 pm

Nonstop2h 54m

Chicago O'Hare Intl

Mon 3/9

5:15 am-8:31 am

Nonstop3h 16m

$78

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 3/6

1:43 pm-4:13 pm

Nonstop2h 30m

Chicago Midway

Mon 3/9

10:00 am-12:58 pm

Nonstop2h 58m

$78

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 3/7

5:15 am-7:54 am

Nonstop2h 39m

Chicago O'Hare Intl

Tue 3/10

9:18 am-12:24 pm

Nonstop3h 06m

$79

HoustonChicago

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Fri 2/20

6:51 pm-9:29 pm

Nonstop2h 38m

Chicago Midway

Sun 2/22

3:00 pm-6:06 pm

Nonstop3h 06m

$79

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

7:35 am-10:57 am

Nonstop3h 22m

$80

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 2/19

5:15 am-7:54 am

Nonstop2h 39m

Chicago O'Hare Intl

Mon 2/23

8:59 am-12:00 pm

Nonstop3h 01m

$81

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 2/24

3:37 pm-6:18 pm

Nonstop2h 41m

Chicago O'Hare Intl

Wed 2/25

9:18 am-12:24 pm

Nonstop3h 06m

$82

HoustonChicago

IAH - ORD

IAHORD

Houston George Bush Intcntl

Fri 2/20

5:15 am-7:54 am

Nonstop2h 39m

Chicago O'Hare Intl

Sat 2/28

8:05 am-11:29 am

Nonstop3h 24m

$84

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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

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Delays

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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 $151. 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 $163.

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 $267. 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 $378.

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 $212. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $737.

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 $229 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 $179 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 February 2026, prices for Houston George Bush Intcntl Airport to Chicago flights are approximately 58% 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	$99
Fastest flight time	2h 30m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from Houston George Bush Intcntl Airport in the past 72 hours is $99. The best round-trip flight deal from Houston George Bush Intcntl Airport to Chicago found on momondo in the last 72 hours is $113.

The fastest flight from Houston George Bush Intcntl Airport to Chicago takes 2h 30m

Direct flights go from Houston George Bush Intcntl Airport to Chicago every day.

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 30m.
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 February 2026.
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 28.98% of the total bookings. Other popular models include Boeing 737-900 with 13.21%, Airbus A320neo with 8.11%, and Embraer 175 with 7.60%.
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 18%.

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 $62	Free Cancellation	Rating 5.7 3,053 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $73	Free Cancellation	Rating 6.3 8,419 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $157	Free Cancellation	Rating 7.2 11,237 reviews	Search American Airlines flights
United Airlines	PriceFrom $169	Free Cancellation	Rating 7.4 9,240 reviews	Search United Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 8,151 reviews	Search Delta flights

United Airlines Flights From Houston George Bush Intcntl Airport to Chicago
United Airlines operates around 59 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 $350, but momondo users have found United Airlines deals from Houston George Bush Intcntl Airport to Chicago from as low as $169 round-trip. United Airlines has been scored 7.4/10 in 9,240 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, 11,237 ratings). American Airlines flies from Houston George Bush Intcntl Airport to Chicago around 8 times per week, with deals starting from $157 round-trip and rising to an average price of around $267.

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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 $44

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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

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 $212. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $737.

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 February 2026, prices for Houston George Bush Intcntl Airport to Chicago flights are approximately 58% 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 and Frontier 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 13% 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 159 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?

Thursday 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 10% of their flights experiencing any sort of delay.

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 February 2026. The most popular departure time for this route is 8:00AM, with 47% 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 February 2026, 275 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 Thu, with 17% 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

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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