Frontier's UpFront Plus seats guarantee an empty middle seat for extra comfort.
Book early morning flights to avoid delays on Frontier.

Round-trip from | $85 (Cheapflightsfares) |
|---|---|
One-way from | $49 (Expedia) |
Popular in | March |
Cheapest in | January |
Average price | $176 |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Sat 3/7
8:53 am-12:00 pm
Nonstop3h 07m
Houston George Bush Intcntl
Wed 3/11
8:23 am-11:10 am
Nonstop2h 47m
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Wed 2/11
6:20 pm-9:28 pm
Nonstop3h 08m
Houston George Bush Intcntl
Wed 2/18
7:20 am-10:07 am
Nonstop2h 47m
ChicagoHouston
MDW - HOU
MDWHOU
Chicago Midway
Fri 2/27
9:55 pm-12:40 am
Nonstop2h 45m
Houston Hobby
Tue 3/3
11:05 am-1:30 pm
Nonstop2h 25m
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Sat 2/21
6:00 am-4:52 pm
1 stop10h 52m
Houston George Bush Intcntl
Mon 2/23
7:45 am-8:27 pm
1 stop12h 42m
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Fri 5/1
8:53 pm-11:00 am
1 stop14h 07m
Houston George Bush Intcntl
Thu 5/7
9:33 pm-5:31 am
1 stop7h 58m
ChicagoHouston
ORD - HOU
ORDHOU
Chicago O'Hare Intl
Wed 2/18
6:45 am-12:20 pm
1 stop5h 35m
Houston Hobby
Wed 2/18
5:19 pm-11:56 pm
1 stop6h 37m
ChicagoHouston
MDW - HOU
MDWHOU
Chicago Midway
Wed 2/4
6:15 am-9:15 am
Nonstop3h 00m
Houston Hobby
Wed 2/4
8:30 pm-10:55 pm
Nonstop2h 25m
ChicagoHouston
MDW - HOU
MDWHOU
Chicago Midway
Sat 2/21
8:55 pm-11:45 pm
Nonstop2h 50m
Houston Hobby
Mon 2/23
8:15 pm-10:40 pm
Nonstop2h 25m
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Tue 3/10
12:47 pm-5:49 pm
1 stop5h 02m
Houston George Bush Intcntl
Tue 3/17
5:23 am-9:56 am
1 stop4h 33m
ChicagoHouston
MDW - HOU
MDWHOU
Chicago Midway
Tue 3/10
5:40 pm-10:42 pm
1 stop5h 02m
Houston Hobby
Wed 3/18
5:22 pm-10:31 pm
1 stop5h 09m
To ensure you get the cheapest price possible for a flight from Chicago to Houston, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, August is the cheapest month in which you can book a flight from Chicago to Houston (average of $56). Flying from Chicago to Houston in June is currently the most expensive (average of $130). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from Chicago to Houston by exploring options for tickets in the evening.
Travelers seeking maximum savings on their Chicago to Houston flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
About 17% of weekly flights between Chicago and Houston have experienced delays in the past year, with the average delay time being 115 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Southwest have had the lowest number of delays on this route, with just 17% of flights being delayed.
Boarding
Crew
Overall
Food
Entertainment
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Overall
Food
Entertainment
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Overall
Food
Entertainment
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Overall
Food
Entertainment
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Overall
Food
Entertainment
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Overall
Food
Entertainment
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$173 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$65 | Average$168 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$124 | Average$325 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$161 | Average$260 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$180 | Average$325 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$287 | FlexibilityNo cancel fee | On-timeN/A |