Nonstop flights from Houston to Atlanta

4 airlines fly from 2 Houston airports (IAH and HOU) to Atlanta (ATL), with up to 23 flights a day.

IAHATL

Routes

2 airport pairs

When they leave

Houston time

5:41a10:05pFirst departure 5:41 AM, last 10:05 PM

11 in the morning, 5:41 AM to 11:55 AM, then eight in the afternoon, 12:07 PM to 4:37 PM, then 11 in the evening, 5:15 PM to 10:05 PM.

Every flight

Earliest first

5:41 AM→8:49 AMIAH to ATLDelta Air LinesAirbus A321Daily
5:45 AM→8:45 AMHOU to ATLSouthwest AirlinesBoeing 737Mon, Thu, Fri, Sun
6:00 AM→9:05 AMHOU to ATLDelta Air LinesAirbus A320Daily
6:00 AM→9:31 AMIAH to ATLFrontier AirlinesAirbus A321neoDaily
7:00 AM→10:04 AMIAH to ATLDelta Air LinesAirbus A321Daily
7:20 AM→10:39 AMIAH to ATLUnited AirlinesAirbus A319Daily
8:05 AM→11:10 AMIAH to ATLDelta Air LinesAirbus A321Mon, Tue, Wed, Thu, Fri, Sun
8:05 AM→11:10 AMIAH to ATLDelta Air LinesAirbus A321Sat
9:25 AM→12:25 PMHOU to ATLSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sun
9:45 AM→12:52 PMIAH to ATLDelta Air LinesAirbus A321Daily
10:15 AM→1:20 PMHOU to ATLSouthwest AirlinesBoeing 737-700Sat
10:40 AM→1:46 PMHOU to ATLDelta Air LinesAirbus A320Daily
11:55 AM→3:16 PMIAH to ATLUnited AirlinesEmbraer 175Mon, Sun
12:07 PM→3:22 PMIAH to ATLUnited AirlinesEmbraer 175Tue, Wed, Thu, Fri, Sat
12:12 PM→3:24 PMIAH to ATLDelta Air LinesAirbus A320Daily
12:16 PM→3:35 PMIAH to ATLFrontier AirlinesAirbus A320neoDaily
12:55 PM→3:59 PMHOU to ATLDelta Air LinesBoeing 717Mon, Tue, Wed, Thu, Fri, Sun
1:45 PM→4:50 PMHOU to ATLSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
2:37 PM→5:53 PMIAH to ATLDelta Air LinesAirbus A321Daily
2:40 PM→5:54 PMIAH to ATLUnited AirlinesAirbus A319Mon, Tue, Wed, Thu, Fri, Sun
4:37 PM→7:59 PMIAH to ATLDelta Air LinesAirbus A320Daily
5:15 PM→8:20 PMHOU to ATLSouthwest AirlinesBoeing 737-700Sun
5:15 PM→8:20 PMHOU to ATLSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
5:17 PM→8:32 PMHOU to ATLDelta Air LinesAirbus A319Daily
5:50 PM→9:00 PMHOU to ATLSouthwest AirlinesBoeing 737-700Mon, Thu, Fri, Sat
6:05 PM→9:18 PMIAH to ATLUnited AirlinesBoeing 737Mon, Sun
6:08 PM→9:20 PMIAH to ATLUnited AirlinesBoeing 737Tue, Wed, Thu, Fri, Sat
6:36 PM→9:59 PMIAH to ATLDelta Air LinesAirbus A320Mon, Tue, Wed, Thu, Fri, Sun
7:20 PM→10:30 PMHOU to ATLSouthwest AirlinesBoeing 737Sat
7:25 PM→10:35 PMHOU to ATLSouthwest AirlinesBoeing 737Tue, Wed
8:02 PM→11:24 PMIAH to ATLFrontier AirlinesAirbus A321neoMon, Wed, Fri, Sat
8:02 PM→11:24 PMIAH to ATLFrontier AirlinesAirbus A321neoTue, Thu, Sun
9:10 PM→12:20 AM⁺¹HOU to ATLSouthwest AirlinesBoeing 737Sun
10:05 PM→1:10 AM⁺¹HOU to ATLSouthwest AirlinesBoeing 737-700Mon, Thu, Fri

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

Flying from Houston to Atlanta

Delta Air Lines flies most often, 10 to 12 times a day on the Airbus A321, Airbus A320, Airbus A319 and Boeing 717. Southwest Airlines flies 3 to 4 times a day on the Boeing 737, Boeing 737-700 and Boeing 737 MAX 8. United Airlines flies 3 to 4 times a day on the Airbus A319, Boeing 737 and Embraer 175. Frontier Airlines flies 3 times a day on the Airbus A321neo and Airbus A320neo.

Flights run every day of the week, from 19 on Saturdays to 23 on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays and Sundays. The first arrival in Atlanta is at 8:45 AM and the last at 1:10 AM the next day.

IAH to ATL is the busiest airport pair, with 103 flights a week, then HOU to ATL with 54.

Flying back, Atlanta to Houston has 153 nonstop flights a week.

Return flights

Atlanta to HoustonView

Find the cheapest day to fly from Houston to Atlanta.

Schedules as of Oct 9, 2026.