Fly from
Fly to
Route
Depart
Return
Price
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Sat 12/7
6:56 pm-9:53 pm
Nonstop2h 57m
Houston George Bush Intcntl
Sat 12/14
9:38 am-12:18 pm
Nonstop2h 40m
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Sat 12/7
6:56 pm-9:53 pm
Nonstop2h 57m
Houston George Bush Intcntl
Mon 12/9
8:10 am-3:43 pm
1 stop7h 33m
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Mon 12/9
6:20 am-9:10 am
Nonstop2h 50m
Houston George Bush Intcntl
Tue 12/17
9:40 am-2:26 pm
1 stop4h 46m
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Tue 12/17
6:49 pm-7:48 am
1 stop12h 59m
Houston George Bush Intcntl
Wed 12/18
6:10 pm-8:40 pm
Nonstop2h 30m
St. LouisHouston
STL - IAH
STLIAH
Lambert-St Louis
Wed 12/4
5:02 pm-4:26 pm
1 stop23h 24m
Houston George Bush Intcntl
Sat 12/7
11:26 am-10:46 pm
1 stop11h 20m
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Fri 2/28
8:30 pm-11:31 pm
Nonstop3h 01m
Houston George Bush Intcntl
Sun 3/2
6:31 am-9:05 am
Nonstop2h 34m
St. LouisHouston
STL - IAH
STLIAH
Lambert-St Louis
Thu 1/9
3:48 pm-2:19 pm
1 stop22h 31m
Houston George Bush Intcntl
Wed 1/15
9:10 pm-11:31 pm
1 stop26h 21m
PeoriaHouston
PIA - IAH
PIAIAH
Greater Peoria
Wed 1/8
4:40 pm-11:32 pm
1 stop6h 52m
Houston George Bush Intcntl
Sat 1/11
9:10 am-2:58 pm
1 stop5h 48m
MolineHouston
MLI - IAH
MLIIAH
Moline Quad-City
Wed 2/12
12:55 pm-10:57 pm
2 stops10h 02m
Houston George Bush Intcntl
Sat 2/15
6:31 am-10:56 am
1 stop4h 25m
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Tue 1/7
9:34 am-3:03 pm
1 stop5h 29m
Houston George Bush Intcntl
Thu 1/9
6:20 am-12:46 pm
1 stop6h 26m
Currently, August is the cheapest month in which you can book a flight from Illinois to Houston George Bush Intcntl Airport (average of $241). Flying from Illinois to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $340). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Houston George Bush Intcntl Airport as you normally would.
The most flights from USIL to IAH are scheduled on a Monday (51 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).
In terms of precipitation, rainfall in Houston George Bush Intcntl Airport ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston George Bush Intcntl Airport when rainfall is around 3.2 in.
If weather is an important factor for your trip to Houston George Bush Intcntl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).
Boarding
Overall
Crew
Entertainment
Comfort
Food
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Boarding
Overall
Crew
Entertainment
Comfort
Food
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Boarding
Overall
Crew
Entertainment
Comfort
Food
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Boarding
Overall
Crew
Entertainment
Comfort
Food
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Boarding
Overall
Crew
Entertainment
Comfort
Food
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Boarding
Overall
Crew
Entertainment
Comfort
Food
Reviews
Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Frontier | Cheapest$56 | Average$139 | FlexibilityNo cancel fee | On-time62% |
Spirit Airlines | Cheapest$71 | Average$168 | FlexibilityNo cancel fee | On-time65% |
American Airlines | Cheapest$146 | Average$394 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$166 | Average$440 | FlexibilityNo cancel fee | On-time69% |
Delta | Cheapest$257 | Average$437 | FlexibilityNo cancel fee | On-timeN/A |