Cheap flights from Illinois to Houston

ORD — IAH
Aug 16 — Aug 231

How far in advance should I book a flight from Illinois to Houston?

To save up to 55% on this flight, we recommend booking at least 47 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Illinois to Houston from $223 1-2 weeks out and tickets from $287 for flights departing within the next 72 hours.

What is the cheapest month to fly from Illinois to Houston?

September can be a great time to fly to Houston from Illinois with a flight ticket averaging about $209. Cheapflights users have found deals in the month of September for as cheap as $70. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Illinois to Houston (IL - IAH)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Houston as you normally would.

Cheap flights from Illinois to Houston in August, September 2022

The best prices found for Illinois to Houston flights for August, September
Sep 7 - Sep 14
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 53m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$82

Spirit Airlines

Pick Dates

Deal found 8/8/22

Sep 7 - Sep 12
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$85

Spirit Airlines

Pick Dates

Deal found 8/9/22

Aug 27 - Aug 30
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 48m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 45m
$86

Spirit Airlines

Pick Dates

Deal found 8/8/22

Illinois to Houston 2022 flight deals

Cheap flights to Houston from Illinois found for this year
Sep 7 - Sep 14
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 53m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$82

Spirit Airlines

Pick Dates

Deal found 8/8/22

Sep 7 - Sep 12
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$85

Spirit Airlines

Pick Dates

Deal found 8/9/22

Aug 27 - Aug 30
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 48m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 45m
$86

Spirit Airlines

Pick Dates

Deal found 8/8/22

Cheap Frontier flights from Illinois to Houston

Aug 24 - Aug 31
MDW

Chicago Midway

IAH

Houston George Bush Intcntl

1 stop

5h 47m
IAH

Houston George Bush Intcntl

MDW

Chicago Midway

1 stop

5h 47m
$156

Frontier

Pick Dates

Deal found 8/10/22

Aug 23 - Aug 30
MDW

Chicago Midway

IAH

Houston George Bush Intcntl

1 stop

6h 46m
IAH

Houston George Bush Intcntl

MDW

Chicago Midway

1 stop

8h 23m
$159

Frontier

Pick Dates

Deal found 8/9/22

Sep 29 - Oct 27
MDW

Chicago Midway

IAH

Houston George Bush Intcntl

1 stop

7h 23m
IAH

Houston George Bush Intcntl

MDW

Chicago Midway

1 stop

8h 20m
$160

Frontier

Pick Dates

Deal found 8/10/22

Cheap Spirit Airlines flights from Illinois to Houston

Sep 7 - Sep 14
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 53m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$82

Spirit Airlines

Pick Dates

Deal found 8/8/22

Sep 7 - Sep 12
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$85

Spirit Airlines

Pick Dates

Deal found 8/9/22

Aug 27 - Aug 30
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 48m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 45m
$86

Spirit Airlines

Pick Dates

Deal found 8/8/22

Non-stop flights to Houston from Illinois

Save time with Illinois to Houston direct flight deals
Sep 9 - Sep 11
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 35m
$80

Spirit Airlines

Pick Dates

Deal found 8/8/22

Sep 7 - Sep 14
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 53m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$82

Spirit Airlines

Pick Dates

Deal found 8/8/22

Sep 9 - Sep 13
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 35m
$84

Spirit Airlines

Pick Dates

Deal found 8/8/22

Last minute flights from Illinois to Houston

Late deals on return flights to Houston from Illinois, departing today and this week
Aug 17 - Sep 9
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 45m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 39m
$104

Spirit Airlines

Pick Dates

Deal found 8/10/22

Aug 19 - Aug 27
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 45m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 45m
$105

Spirit Airlines

Pick Dates

Deal found 8/11/22

Aug 20 - Aug 23
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 48m
IAH

Houston George Bush Intcntl

ORD

Chicago O'Hare Intl

Nonstop

2h 45m
$122

Spirit Airlines

Pick Dates

Deal found 8/8/22

One-way flights to Houston from Illinois

The cheapest one-way flights from Illinois to Houston
Oct 4
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
$30

Spirit Airlines

Pick Dates

Deal found 8/9/22

Aug 25
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 45m
$35

Spirit Airlines

Pick Dates

Deal found 8/9/22

Sep 20
ORD

Chicago O'Hare Intl

IAH

Houston George Bush Intcntl

Nonstop

2h 52m
$37

Spirit Airlines

Pick Dates

Deal found 8/8/22

Related info for your journey

Useful info, stats and facts about Illinois to Houston flights.

Which airlines flying from Illinois to Houston have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, Spirit Airlines, and American Airlines flying from Illinois to Houston have implemented new flexible cancellation policies.

Can I find flights from Illinois to Houston for under $100 on Cheapflights?

Yes, there are multiple flights from Illinois to Houston for under $100. The cheapest flight booked recently is on Spirit Airlines for just $82, but on average you can expect to pay $101.

Are there nonstop flights from Illinois to Houston for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Illinois to Houston under $100. A good price for a nonstop flight from Illinois to Houston is less than $99.

Are there last-minute flights available from Illinois to Houston for under $200?

There are currently 20+ open flights from Illinois to Houston within the next 7 days for less than $200.

What days are nonstop flights available from Illinois to Houston?

You can find nonstop flights on the following days: Tuesday, Thursday, Friday, Saturday.

How many flights depart from Illinois to Houston on average per day?

Travelers can expect 13 flights from Illinois to Houston on average per day.
Early Morning (Midnight to 6am) - 15% of flight departures
Morning (6am - Noon) - 23% of flight departures
Afternoon (Noon - 6pm) - 15% of flight departures
Evening (6pm - Midnight) - 46% of flight departures

How long is the flight from Illinois to Houston?

A quick flight from Illinois to Houston can take about 2h 53m. Spirit Airlines provides one of the quickest options available for as low as $82. Illinois and Houston are separated by a distance of 930 mi. All flights are typically nonstop.

What are the most popular routes from Illinois to Houston?

The most popular route from Illinois to Houston is Chicago Midway - Houston Hobby. You may also consider Chicago O'Hare Intl - Houston Hobby or Chicago O'Hare Intl - Houston George Bush Intcntl.

What are the most popular airlines that fly from Illinois to Houston?

When booking a flight from Illinois to Houston, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What are the most reliable airlines from Illinois to Houston?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Houston on time: Spirit Airlines (92%), Avianca (90%), SkyWest Airlines (89%).

What are the cheapest flights from Illinois to Houston?

Looking at all options, your cheapest flight can be booked for $56. While the most popular route (Chicago Midway - Houston Hobby) can be booked for $164 on average our data indicates $290 when flying from Illinois to Houston.

Departure points for flights from Illinois to Houston

Select to see more specific information for flights to Houston from all departure points in Illinois

Top 5 airlines flying from Illinois to Houston

The chart below displays the airlines Cheapflights users traveling from Illinois to Houston choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$15Average$24FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Spirit AirlinesCheapest$55Average$178FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
American AirlinesCheapest$63Average$398FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
United AirlinesCheapest$88Average$392FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
DeltaCheapest$171Average$438FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights

Hourly flight availability from Illinois to Houston

See what time of day planes typically take off from Illinois to Houston
14%of flight departuresEarly morningMidnight to 6 am
37%of flight departuresMorning6 am to noon
31%of flight departuresAfternoonNoon to 6 pm
18%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM