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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 July, August 2020

The best prices found for Illinois to IAH flights for July, August
15 Jul - 5 Aug
$72pp
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
8 Jul - 22 Jul
$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
16 Jul - 4 Aug
$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

Illinois to Houston 2020 flight deals

Cheap flights to Houston from Illinois found for this year
15 Jul - 5 Aug
$72pp
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
8 Jul - 22 Jul
$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
16 Jul - 4 Aug
$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
15 Jul - 5 Aug
$72pp
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
8 Jul - 22 Jul
$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
16 Jul - 4 Aug
$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
25 Jun - 7 Jul
$126pp
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
23 Jun - 7 Jul
$129pp
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
24 Jun - 7 Jul
$138pp
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
5:20 am - 11:04 am
Delta
1 Stop
5h 44m
ORD - IAH
Delta
$73
Delta
5:40 am - 1:54 pm
Multiple Airlines
1 Stop
8h 14m
ORD - IAH
Multiple Airlines
$83
FlightNetwork
4:14 am - 11:20 am
Spirit Airlines
1 Stop
7h 06m
ORD - IAH
Spirit Airlines
$94
Spirit

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.

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 $72, but on average you can expect to pay $86.

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 $86.

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?

Nonstop flights are available for this route on the following days: Tuesday.

How popular is this flight route?

The Illinois to Houston George Bush Intcntl flight path was viewed by 386 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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 Moline Quad-City - Houston George Bush Intcntl.

What are the cheapest Flights from Illinois to Houston?

While on average a flight from Illinois to Houston is generally $142, our data shows the cheapest flight currently is $56. When looking at the most popular route, (Chicago O'Hare Intl - Houston George Bush Intcntl), you can expect to pay $32 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: Japan Airlines (100%), LOT (100%), Brussels Airlines( 100%).

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 42m
Average temperature for July in Houston
84.2 °F
Avg rainfall for July in Houston
0.0 ″

Airports servicing

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

Airports servicing Houston