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Cheap flights from Illinois (IL) to Houston (IAH)

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How to find the cheapest flight from
Illinois to Houston (IAH)

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

Travelers have found it’s best to book a flight 27 days in advance to save up to 43% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 27 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Illinois to Houston 1-2 weeks in advance for as low as $167, or $207 for flights within the next 24 hours.

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

Our data shows that October tends to be the cheapest month to fly to Houston from Illinois. Users have commonly found prices around $162 for the month, but tickets can be as low as $74. Due to multiple factors, prepare for potentially higher prices in January.

Cheap flights from Illinois to Houston in October, November 2020

The best prices found for Illinois to IAH flights for October, November
9 Nov - 12 Nov
$73pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
20 Nov - 23 Nov
$74pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
15 Nov - 2 Dec
$75pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Illinois to Houston 2020 flight deals

Cheap flights to Houston from Illinois found for this year
2 Dec - 2 Dec
$69pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
3 Dec - 6 Dec
$73pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
2 Dec - 5 Dec
$74pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to Houston from Illinois

Save time with Illinois to Houston direct flight deals
2 Dec - 2 Dec
$69pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
3 Dec - 6 Dec
$73pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
2 Dec - 5 Dec
$74pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Illinois to Houston

Late deals on round-trip flights to Houston from Illinois, departing today and this week
5 Nov - 9 Nov
$76pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
3 Nov - 13 Nov
$91pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
5 Nov - 8 Nov
$92pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

One-way flights to Houston from Illinois

The cheapest one-way flights from Illinois to Houston
9:15 am - 11:55 am
United Airlines
Nonstop
2h 40m
ORD - IAH
United Airlines
$38
United
3:39 pm - 6:34 am
Frontier
1 Stop
14h 55m
ORD - IAH
Frontier
$58
Kiwi.com
1:35 am - 6:34 am
American Airlines
1 Stop
4h 59m
ORD - IAH
American Airlines

Related info for your journey

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

Flight FAQs

From Illinois to Houston

Are flight prices decreasing from Illinois to Houston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Illinois and Houston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Illinois to Houston George Bush Intcntl to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. New policies for travelers booking flights from Illinois to Houston George Bush Intcntl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

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

Some of our airline partners flying from Illinois to Houston George Bush Intcntl have new flexible policies in place due to COVID-19. Spirit Airlines, American Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Spirit Airlines with this kind of flexibility.

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 American Airlines for just $69, but on average you can expect to pay $85.

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 $92.

Are there last-minute flights available from Illinois to Houston for under $100?

There are currently 20+ open flights from Illinois to Houston within the next 7 days for less than $100.

What days are nonstop flights available from Illinois to Houston?

Nonstop flights are available for this route on the following days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

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 Major Airline, American Airlines or Delta as they are the most popular for this route.

What are the most popular routes from Illinois to Houston?

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

What are the cheapest Flights from Illinois to Houston?

While on average a flight from Illinois to Houston is generally $118, our data shows the cheapest flight currently is $49. When looking at the most popular route, (Chicago O'Hare Intl - Houston George Bush Intcntl), you can expect to pay $73 for that flight.

What are the most reliable airlines from Illinois to Houston?

Before booking your flight to Houston from Illinois, check out the most reliable airlines to get you to your destination on time: Avianca (100%), Spirit Airlines (100%), Lufthansa( 98%).

How long is the flight from Illinois to Houston?

Airlines like American Airlines, Spirit Airlines, and United Airlines fly from Illinois to Houston in about 2h 40m. The time it takes to get you to your destination is usually consistent. Generally, flights for this route are nonstop.

What are the cheapest airlines flying from Illinois to Houston round-trip?

According to our current data, American Airlines ($69), Spirit Airlines ($73), and United Airlines ($75) offers the cheapest pricing from Illinois to Houston.

What are the cheapest airlines to fly from Illinois to Houston one-way?

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $36. United Airlines flights start at $38 while deals on Frontier start at $39 one-way.

Arrival points for flights from Illinois to Houston

Destination information for Houston

Things to know before you go. Useful info for your trip from Illinois to Houston
Flight duration
2h 41m
Average temperature for October in Houston
77.0 °F

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Airports servicing Houston

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