Round-trip from | $87 (Cheapflightsfares) |
---|---|
One-way from | $46 (Frontier) |
Popular in | March |
Cheapest in | September |
Average price | $187 |
Good round-trip deal | $96 or less |
Good one-way deal | $69 or less |
Fly from
Fly to
Route
Depart
Return
Price
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Wed 3/5
11:10 am-6:26 pm
1 stop7h 16m
Chicago O'Hare Intl
Wed 3/12
7:42 pm-8:00 am
1 stop12h 18m
HoustonChicago
IAH - MDW
IAHMDW
Houston George Bush Intcntl
Fri 3/7
11:15 am-1:46 pm
Nonstop2h 31m
Chicago Midway
Wed 3/12
9:25 am-12:15 pm
Nonstop2h 50m
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Mon 3/24
11:38 am-2:21 pm
Nonstop2h 43m
Chicago O'Hare Intl
Sun 4/6
6:30 am-9:36 am
Nonstop3h 06m
HoustonChicago
IAH - ORD
IAHORD
Houston George Bush Intcntl
Tue 4/15
11:19 am-2:05 pm
Nonstop2h 46m
Chicago O'Hare Intl
Mon 4/28
6:30 am-3:55 pm
1 stop9h 25m
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Thu 4/3
11:58 am-11:46 pm
1 stop11h 48m
Lambert-St Louis
Mon 4/7
6:38 pm-11:09 am
1 stop16h 31m
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Thu 4/3
7:45 am-9:56 am
Nonstop2h 11m
Lambert-St Louis
Mon 4/7
8:40 am-11:03 am
Nonstop2h 23m
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Mon 3/31
9:21 pm-5:52 pm
1 stop20h 31m
Lambert-St Louis
Wed 4/2
4:57 pm-10:58 am
1 stop18h 01m
HoustonSt. Louis
IAH - STL
IAHSTL
Houston George Bush Intcntl
Wed 4/2
7:05 am-12:00 pm
1 stop4h 55m
Lambert-St Louis
Thu 4/3
11:19 am-5:26 pm
1 stop6h 07m
HoustonMoline
IAH - MLI
IAHMLI
Houston George Bush Intcntl
Wed 3/19
6:25 am-11:16 am
1 stop4h 51m
Moline Quad-City
Wed 3/26
4:23 pm-10:20 pm
1 stop5h 57m
HoustonPeoria
IAH - PIA
IAHPIA
Houston George Bush Intcntl
Tue 3/18
7:47 am-3:53 pm
1 stop8h 06m
Greater Peoria
Tue 3/25
4:52 pm-11:24 pm
1 stop6h 32m
Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Illinois (average of $245). Flying from Houston George Bush Intcntl Airport to Illinois in March is currently the most expensive (average of $321). 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.
When flying from Houston George Bush Intcntl Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
The most flights from IAH to USIL are scheduled on a Thursday (49 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
Crew
Boarding
Overall
Comfort
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Boarding
Overall
Comfort
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Boarding
Overall
Comfort
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Boarding
Overall
Comfort
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Boarding
Overall
Comfort
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Crew
Boarding
Overall
Comfort
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$46 | Average$140 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$67 | Average$142 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$140 | Average$349 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$144 | Average$407 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$196 | Average$406 | FlexibilityNo cancel fee | On-timeN/A |