Nonstop flights from Chicago to Houston

4 airlines fly from 2 Chicago airports (ORD and MDW) to 2 Houston airports (IAH and HOU), with up to 26 flights a day.

ORDIAH

Routes

2 airport pairs

When they leave

Chicago time

5:25a10:15pFirst departure 5:25 AM, last 10:15 PM

19 in the morning, 5:25 AM to 11:10 AM, then 10 in the afternoon, 12:40 PM to 4:07 PM, then 12 in the evening, 5:10 PM to 10:15 PM.

Every flight

Earliest first

5:25 AM→7:50 AMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
5:30 AM→8:19 AMORD to IAHUnited AirlinesBoeing 737 MAX 9 · 2h 49mThu, Fri, Sat
5:30 AM→8:25 AMORD to IAHUnited AirlinesAirbus A321neo · 2h 56mMon, Tue, Wed, Sun
6:00 AM→8:53 AMORD to IAHUnited AirlinesBoeing 737 · 2h 53mSun
6:25 AM→9:14 AMORD to IAHUnited AirlinesAirbus A321neo · 2h 49mThu, Fri, Sat
6:55 AM→9:50 AMORD to IAHUnited AirlinesBoeing 757 · 2h 55mMon, Tue, Wed, Sun
7:20 AM→9:50 AMMDW to HOUSouthwest AirlinesBoeing 737-700Sat, Sun
7:21 AM→10:14 AMORD to IAHAmerican AirlinesAirbus A319 · 2h 53mDaily
7:25 AM→9:55 AMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
7:29 AM→10:32 AMORD to IAHUnited AirlinesAirbus A321neo · 3h 3mMon, Tue, Wed, Sun
7:30 AM→10:23 AMORD to IAHUnited AirlinesAirbus A321neo · 2h 53mThu, Fri, Sat
7:40 AM→10:39 AMORD to IAHFrontier AirlinesAirbus A321neo · 2h 59mDaily
7:50 AM→10:25 AMMDW to HOUSouthwest AirlinesBoeing 737Tue, Wed
9:10 AM→11:40 AMMDW to HOUSouthwest AirlinesBoeing 737-700Sun
9:15 AM→12:18 PMORD to IAHUnited AirlinesAirbus A321neo · 3h 3mDaily
10:05 AM→12:35 PMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Daily
10:32 AM→1:28 PMORD to IAHUnited AirlinesAirbus A321neo · 2h 56mThu, Fri, Sat
10:34 AM→1:35 PMORD to IAHUnited AirlinesAirbus A321neo · 3h 1mMon, Tue, Wed, Sun
11:00 AM→1:51 PMORD to IAHAmerican AirlinesBoeing 737 · 2h 51mDaily
11:10 AM→1:40 PMMDW to HOUSouthwest AirlinesBoeing 737Sun
12:40 PM→3:40 PMORD to IAHUnited AirlinesAirbus A321neo · 3hDaily
1:00 PM→3:35 PMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
1:50 PM→4:43 PMORD to IAHAmerican AirlinesAirbus A319 · 2h 53mDaily
2:05 PM→4:35 PMMDW to HOUSouthwest AirlinesBoeing 737-700Tue, Wed, Sat
2:10 PM→5:11 PMORD to IAHUnited AirlinesAirbus A321neo · 3h 1mThu, Fri, Sat
2:22 PM→5:25 PMORD to IAHUnited AirlinesAirbus A321neo · 3h 3mMon, Tue, Wed, Sun
3:00 PM→5:30 PMMDW to HOUSouthwest AirlinesBoeing 737-700Sun
3:13 PM→6:07 PMORD to IAHAmerican AirlinesAirbus A319 · 2h 54mDaily
4:05 PM→6:35 PMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Sun
4:07 PM→7:10 PMORD to IAHUnited AirlinesAirbus A321neo · 3h 3mDaily
5:10 PM→8:06 PMORD to IAHAmerican AirlinesAirbus A319 · 2h 56mDaily
5:27 PM→8:27 PMORD to IAHUnited AirlinesBoeing 737 · 3hMon, Tue, Wed, Sun
5:30 PM→8:00 PMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sat
5:53 PM→8:47 PMORD to IAHUnited AirlinesAirbus A321neo · 2h 54mThu, Fri, Sat
6:29 PM→9:20 PMORD to IAHUnited AirlinesBoeing 737 MAX 9 · 2h 51mThu, Fri, Sat
6:30 PM→9:36 PMORD to IAHUnited AirlinesAirbus A321neo · 3h 6mMon, Tue, Wed, Sun
7:55 PM→10:53 PMORD to IAHUnited AirlinesA321neo or 737 MAX 9 · 2h 58mDaily
8:25 PM→10:50 PMMDW to HOUSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
9:20 PM→12:11 AM⁺¹ORD to IAHUnited AirlinesBoeing 737 MAX 9 · 2h 51mSat
9:35 PM→12:29 AM⁺¹ORD to IAHUnited AirlinesAirbus A321neo · 2h 55mDaily
9:42 PM→12:36 AM⁺¹ORD to IAHAmerican AirlinesBoeing 737 · 2h 54mDaily
10:15 PM→12:59 AM⁺¹ORD to IAHUnited AirlinesBoeing 737 · 2h 44mSat

Schedules last checked Oct 1, 2026. Times are local.

Flying from Chicago to Houston

United Airlines flies most often, 12 to 14 times a day on the Airbus A321neo, Boeing 737, Boeing 737 MAX 9 and Boeing 757. American Airlines flies 6 times a day on the Airbus A319 and Boeing 737. Southwest Airlines flies 4 to 6 times a day on the Boeing 737 MAX 8, Boeing 737-700 and Boeing 737. Frontier Airlines flies daily on the Airbus A321neo.

Flights run every day of the week, from 24 on Mondays, Tuesdays, Wednesdays, Thursdays and Fridays to 26 on Sundays. The first arrival in Houston is at 7:50 AM and the last at 12:59 AM the next day.

ORD to IAH is the busiest airport pair, with 136 flights a week, then MDW to HOU with 35.

Flying back, Houston to Chicago has 164 nonstop flights a week.

Return flights

Houston to ChicagoView

Find the cheapest day to fly from Chicago to Houston.

Schedules as of Oct 9, 2026.