Nonstop flights from Denver to Houston

3 airlines fly from Denver (DEN) to 2 Houston airports (IAH and HOU), with up to 21 flights a day.

DENIAH

Routes

2 airport pairs

When they leave

Denver time

5:00a9:10pFirst departure 5:00 AM, last 9:10 PM

Nine in the morning, 5:00 AM to 11:34 AM, then six in the afternoon, 1:20 PM to 4:45 PM, then 10 in the evening, 5:18 PM to 9:10 PM.

Every flight

Earliest first

5:00 AM→8:27 AMDEN to IAHUnited AirlinesBoeing 737Mon, Tue, Wed, Thu, Sat, Sun
7:00 AM→10:34 AMDEN to IAHFrontier AirlinesAirbus A321neoMon, Tue, Wed, Thu, Sat, Sun
7:42 AM→11:15 AMDEN to IAHUnited AirlinesAirbus A321neoMon, Tue, Wed, Thu, Sat, Sun
8:00 AM→11:30 AMDEN to HOUSouthwest AirlinesBoeing 737-700Sun
8:05 AM→11:35 AMDEN to HOUSouthwest AirlinesBoeing 737-700Mon, Tue, Wed, Thu, Fri, Sat
8:40 AM→12:00 PMDEN to HOUSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
10:07 AM→1:40 PMDEN to IAHUnited AirlinesBoeing 757Mon, Tue, Wed, Thu, Sat, Sun
10:10 AM→1:45 PMDEN to HOUSouthwest AirlinesBoeing 737-700Daily
11:34 AM→3:09 PMDEN to IAHUnited AirlinesAirbus A321neoMon, Tue, Wed, Thu, Sat, Sun
1:20 PM→4:45 PMDEN to HOUSouthwest AirlinesBoeing 737Sat
1:30 PM→5:04 PMDEN to IAHUnited AirlinesBoeing 757Mon, Tue, Wed, Thu, Sat, Sun
1:40 PM→5:05 PMDEN to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri
3:35 PM→7:10 PMDEN to IAHUnited AirlinesAirbus A321neoMon, Tue, Wed, Thu, Sat, Sun
4:20 PM→7:57 PMDEN to IAHUnited AirlinesBoeing 737Mon, Tue, Wed, Thu, Sat, Sun
4:45 PM→8:10 PMDEN to HOUSouthwest AirlinesBoeing 737Mon, Thu, Fri, Sat, Sun
5:18 PM→8:55 PMDEN to IAHUnited AirlinesAirbus A321neoMon, Tue, Wed, Thu, Sat, Sun
5:35 PM→9:14 PMDEN to IAHFrontier AirlinesAirbus A321neoMon, Thu, Sun
6:05 PM→9:36 PMDEN to IAHUnited AirlinesBoeing 757Mon, Tue, Wed, Thu, Sat, Sun
6:05 PM→9:45 PMDEN to HOUSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri, Sun
7:10 PM→10:35 PMDEN to HOUSouthwest AirlinesBoeing 737Sun
7:35 PM→11:06 PMDEN to IAHUnited AirlinesAirbus A321neoMon, Tue, Wed, Thu, Sat, Sun
7:50 PM→11:10 PMDEN to HOUSouthwest AirlinesBoeing 737Tue, Wed
8:28 PM→11:59 PMDEN to IAHUnited AirlinesBoeing 737Mon, Tue, Wed, Thu, Sat, Sun
8:50 PM→12:15 AM⁺¹DEN to HOUSouthwest AirlinesBoeing 737-700Mon, Thu, Fri, Sun
9:06 PM→12:40 AM⁺¹DEN to IAHFrontier AirlinesAirbus A320neoMon, Tue, Wed, Thu, Sat, Sun
9:10 PM→12:41 AM⁺¹DEN to IAHUnited AirlinesAirbus A321neoMon, Wed, Thu, Sun

Schedules last checked Oct 9, 2026. Times are local.

Flying from Denver to Houston

United Airlines flies most often, 70 times a week on the Airbus A321neo, Boeing 737 and Boeing 757. Southwest Airlines flies 4 to 6 times a day on the Boeing 737, Boeing 737-700 and Boeing 737 MAX 8. Frontier Airlines flies 15 times a week on the Airbus A321neo and Airbus A320neo.

Flights run every day of the week, from 6 on Fridays to 21 on Mondays, Thursdays and Sundays. The first arrival in Houston is at 8:27 AM and the last at 12:41 AM the next day.

DEN to IAH is the busiest airport pair, with 85 flights a week, then DEN to HOU with 38.

Flying back, Houston to Denver has 131 nonstop flights a week.

Return flights

Houston to DenverView

Find the cheapest day to fly from Denver to Houston.

Schedules as of Oct 9, 2026.