Nonstop flights from Houston to Chicago

4 airlines fly from 2 Houston airports (IAH and HOU) to 2 Chicago airports (ORD and MDW), with up to 24 flights a day.

IAHORD

Routes

2 airport pairs

When they leave

Houston time

5:00a10:19pFirst departure 5:00 AM, last 10:19 PM

11 in the morning, 5:00 AM to 11:55 AM, then nine in the afternoon, 12:53 PM to 4:40 PM, then nine in the evening, 5:06 PM to 10:19 PM.

Every flight

Earliest first

5:00 AM→7:25 AMHOU to MDWSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
5:00 AM→7:55 AMIAH to ORDUnited AirlinesBoeing 737 MAX 9Daily
6:07 AM→9:05 AMIAH to ORDAmerican AirlinesBoeing 737-800Daily
6:15 AM→9:09 AMIAH to ORDUnited AirlinesAirbus A321neoDaily
6:50 AM→9:15 AMHOU to MDWSouthwest AirlinesBoeing 737-700Tue, Wed, Sat, Sun
7:20 AM→9:50 AMHOU to MDWSouthwest AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sun
7:20 AM→10:15 AMIAH to ORDUnited AirlinesBoeing 737 MAX 9Daily
8:25 AM→11:20 AMIAH to ORDUnited AirlinesBoeing 737Daily
9:30 AM→12:25 PMIAH to ORDUnited AirlinesBoeing 737 MAX 9Daily
9:40 AM→12:15 PMHOU to MDWSouthwest AirlinesBoeing 737-700Tue, Wed, Sun
10:30 AM→1:00 PMHOU to MDWSouthwest AirlinesBoeing 737-700Sat
11:24 AM→2:19 PMIAH to ORDAmerican AirlinesAirbus A319Daily
11:55 AM→2:20 PMHOU to MDWSouthwest AirlinesBoeing 737 MAX 8Sun
11:55 AM→2:50 PMIAH to ORDUnited AirlinesBoeing 737Daily
12:53 PM→3:59 PMIAH to ORDFrontier AirlinesAirbus A321neoTue, Wed
1:01 PM→4:01 PMIAH to ORDAmerican AirlinesBoeing 737Tue
1:16 PM→4:16 PMIAH to ORDAmerican AirlinesBoeing 737Mon, Wed, Thu, Fri, Sat, Sun
1:45 PM→4:40 PMIAH to ORDUnited AirlinesAirbus A321neoDaily
2:20 PM→4:40 PMHOU to MDWSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
2:50 PM→5:15 PMHOU to MDWSouthwest AirlinesBoeing 737-700Sun
3:34 PM→6:30 PMIAH to ORDUnited AirlinesAirbus A321neoDaily
3:50 PM→6:15 PMHOU to MDWSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
4:40 PM→7:44 PMIAH to ORDAmerican AirlinesBoeing 737Daily
5:06 PM→8:04 PMIAH to ORDUnited AirlinesAirbus A321neoDaily
5:45 PM→8:10 PMHOU to MDWSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sat
6:37 PM→9:46 PMIAH to ORDAmerican AirlinesAirbus A319Daily
6:40 PM→9:32 PMIAH to ORDUnited AirlinesAirbus A321neoDaily
7:55 PM→10:15 PMHOU to MDWSouthwest AirlinesBoeing 737-700Mon, Thu, Fri, Sat
8:35 PM→11:26 PMIAH to ORDUnited AirlinesBoeing 737Daily
8:50 PM→11:10 PMHOU to MDWSouthwest AirlinesBoeing 737Tue, Wed, Sun
9:42 PM→12:33 AM⁺¹IAH to ORDFrontier AirlinesAirbus A321neoMon, Thu, Fri, Sat, Sun
10:19 PM→12:59 AM⁺¹IAH to ORDUnited AirlinesBoeing 737 MAX 9Daily

Schedules last checked Sep 19, 2026. Times are local.

Flying from Houston to Chicago

United Airlines flies most often, 12 times a day on the Airbus A321neo, Boeing 737 MAX 9 and Boeing 737. Southwest Airlines flies 4 to 6 times a day on the Boeing 737-700, Boeing 737 MAX 8 and Boeing 737. American Airlines flies 5 times a day on the Boeing 737, Airbus A319 and Boeing 737-800. Frontier Airlines flies daily on the Airbus A321neo.

Flights run every day of the week, from 22 on Saturdays to 24 on Mondays, Thursdays, Fridays and Sundays. The first arrival in Chicago is at 7:25 AM and the last at 12:59 AM the next day.

IAH to ORD is the busiest airport pair, with 126 flights a week, then HOU to MDW with 38.

Flying back, Chicago to Houston has 171 nonstop flights a week.

Return flights

Chicago to HoustonView

Find the cheapest day to fly from Houston to Chicago.

Schedules as of Oct 9, 2026.