--- title: "Houston (IAH) to Atlanta (ATL) flights: who flies it" description: "Delta Air Lines, United Airlines and Frontier Airlines fly nonstop from IAH to ATL, about 122 flights a week. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/iah-atl" url: "https://2lnr.com/routes/iah-atl.md" date_modified: "2026-10-18T05:10:47Z" --- # Houston to Atlanta (IAH-ATL): nonstop upgrade & award space United Airlines, Delta Air Lines, and Frontier Airlines fly nonstop between Houston (IAH) and Atlanta (ATL), roughly 122 times a week. The timetable below shows the nonstop scheduled at 2h 2m to 2h 30m for the 688 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See IAH to ATL on the interactive map [Get started free](https://2lnr.com/login) 122 Flights a week, 4-week average 2h 2m to 2h 30m Scheduled flight time 688 mi Nonstop distance Free To get started ## Houston to Atlanta flight schedule Scheduled nonstop departures for IAH to ATL starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Houston (IAH) to Atlanta (ATL) | Date | Flight | Airline | Departs IAH | Arrives ATL | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | DL 1069 | Delta Air Lines | 05:29 | 08:31 | 2h 2m | [Airbus A321](https://2lnr.com/seatmaps/dl/a321.md) | | Thu, Oct 22 | F9 1404 | Frontier Airlines | 06:05 | 09:35 | 2h 30m | [Airbus A321neo family](https://2lnr.com/seatmaps/f9/a321neo.md) | | Thu, Oct 22 | DL 1315 | Delta Air Lines | 07:00 | 10:02 | 2h 2m | Airbus A321 | | Thu, Oct 22 | UA 1030 | United Airlines | 07:20 | 10:31 | 2h 11m | [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md) | | Thu, Oct 22 | DL 1435 | Delta Air Lines | 08:05 | 11:09 | 2h 4m | Airbus A321 | | Thu, Oct 22 | DL 1585 | Delta Air Lines | 09:40 | 12:48 | 2h 8m | Airbus A321 | | Thu, Oct 22 | UA 4036 | United Airlines | 11:56 | 15:08 | 2h 12m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Thu, Oct 22 | DL 1682 | Delta Air Lines | 12:03 | 15:08 | 2h 5m | [Airbus A320](https://2lnr.com/seatmaps/dl/a320.md) | | Thu, Oct 22 | F9 4076 | Frontier Airlines | 12:07 | 15:30 | 2h 23m | [Airbus A320neo](https://2lnr.com/seatmaps/f9/a320neo.md) | | Thu, Oct 22 | DL 2709 | Delta Air Lines | 14:22 | 17:29 | 2h 7m | Airbus A320 | | Thu, Oct 22 | UA 6141 | United Airlines | 14:40 | 17:55 | 2h 15m | Embraer E175 | | Thu, Oct 22 | DL 1995 | Delta Air Lines | 17:00 | 20:09 | 2h 9m | Airbus A321 | | Thu, Oct 22 | UA 2240 | United Airlines | 18:08 | 21:20 | 2h 12m | [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md) | | Thu, Oct 22 | DL 1131 | Delta Air Lines | 18:20 | 21:36 | 2h 16m | Airbus A320 | | Thu, Oct 22 | UA 6157 | United Airlines | 20:15 | 23:30 | 2h 15m | Embraer E175 | | Thu, Oct 22 | F9 4106 | Frontier Airlines | 21:12 | 00:22 | 2h 10m | [Airbus A321](https://2lnr.com/seatmaps/f9/a321.md) | | Fri, Oct 23 | DL 1069 | Delta Air Lines | 05:29 | 08:31 | 2h 2m | Airbus A321 | | Fri, Oct 23 | F9 1404 | Frontier Airlines | 06:05 | 09:35 | 2h 30m | Airbus A321neo family | | Fri, Oct 23 | DL 1315 | Delta Air Lines | 07:00 | 10:02 | 2h 2m | Airbus A321 | | Fri, Oct 23 | UA 1030 | United Airlines | 07:20 | 10:31 | 2h 11m | Boeing 737 MAX 8 | | Fri, Oct 23 | DL 1435 | Delta Air Lines | 08:05 | 11:09 | 2h 4m | Airbus A321 | | Fri, Oct 23 | DL 1585 | Delta Air Lines | 09:40 | 12:48 | 2h 8m | Airbus A321 | | Fri, Oct 23 | UA 4036 | United Airlines | 11:56 | 15:08 | 2h 12m | Embraer E175 | | Fri, Oct 23 | DL 1682 | Delta Air Lines | 12:03 | 15:08 | 2h 5m | Airbus A320 | | Fri, Oct 23 | F9 4076 | Frontier Airlines | 12:07 | 15:30 | 2h 23m | Airbus A320neo | | Fri, Oct 23 | DL 2709 | Delta Air Lines | 14:22 | 17:29 | 2h 7m | Airbus A320 | | Fri, Oct 23 | UA 6141 | United Airlines | 14:40 | 17:55 | 2h 15m | Embraer E175 | | Fri, Oct 23 | DL 1995 | Delta Air Lines | 17:00 | 20:09 | 2h 9m | Airbus A321 | | Fri, Oct 23 | UA 2240 | United Airlines | 18:08 | 21:20 | 2h 12m | Boeing 737-800 | | Fri, Oct 23 | DL 1131 | Delta Air Lines | 18:20 | 21:36 | 2h 16m | Airbus A320 | | Fri, Oct 23 | UA 6157 | United Airlines | 20:15 | 23:30 | 2h 15m | Embraer E175 | | Fri, Oct 23 | F9 4106 | Frontier Airlines | 21:12 | 00:22 | 2h 10m | Airbus A321 | | Sat, Oct 24 | DL 1069 | Delta Air Lines | 05:35 | 08:39 | 2h 4m | Airbus A321 | | Sat, Oct 24 | F9 1404 | Frontier Airlines | 06:05 | 09:35 | 2h 30m | Airbus A321neo family | | Sat, Oct 24 | DL 1315 | Delta Air Lines | 07:00 | 10:02 | 2h 2m | Airbus A321 | | Sat, Oct 24 | UA 1030 | United Airlines | 07:20 | 10:31 | 2h 11m | Boeing 737 MAX 8 | | Sat, Oct 24 | UA 6153 | United Airlines | 07:20 | 10:33 | 2h 13m | Embraer E175 | | Sat, Oct 24 | DL 1585 | Delta Air Lines | 09:40 | 12:48 | 2h 8m | Airbus A321 | | Sat, Oct 24 | UA 4036 | United Airlines | 11:56 | 15:08 | 2h 12m | Embraer E175 | | Sat, Oct 24 | DL 1682 | Delta Air Lines | 12:03 | 15:08 | 2h 5m | Airbus A321 | Showing the first 40 of 121 scheduled IAH to ATL departures across 7 days with service, starting October 22, 2026. Every remaining date is on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every IAH to ATL date on the interactive map ## Aircraft on the Houston to Atlanta nonstop In the schedule table on this page, Delta Air Lines flies the [Airbus A321](https://2lnr.com/seatmaps/dl/a321.md) and the [Airbus A320](https://2lnr.com/seatmaps/dl/a320.md). United Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md), the [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md), and the [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md). Frontier Airlines flies the [Airbus A321neo family](https://2lnr.com/seatmaps/f9/a321neo.md), the [Airbus A320neo](https://2lnr.com/seatmaps/f9/a320neo.md), and the [Airbus A321](https://2lnr.com/seatmaps/f9/a321.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on IAH to ATL departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Houston to Atlanta to see which departures have space, the next 14 days free on every product and the full horizon on Pro. Delta Air Lines award space was open on all 14 Houston to Atlanta departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026. ### See real availability Confirmed upgrade or award seats by date on the IAH to ATL departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See IAH to ATL on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Houston to Atlanta nonstop Carriers operating IAH to ATL nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) - [Frontier Airlines (F9) route map](https://2lnr.com/routes/airlines/f9.md)\ [The aircraft F9 flies](https://2lnr.com/seatmaps/f9.md) See IAH to ATL on the interactive map → ## Frequently asked questions about IAH to ATL **How long is the flight from Houston (IAH) to Atlanta (ATL)?** Scheduled flight times from Houston (IAH) to Atlanta (ATL) run from 2h 2m to 2h 30m across the departures in the schedule table on this page. The nonstop covers about 688 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from IAH to ATL?** United Airlines, Delta Air Lines, and Frontier Airlines fly IAH to ATL nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines. **How many flights a week are there from IAH to ATL?** About 122 nonstop flights a week run between Houston (IAH) and Atlanta (ATL) in the current schedule, operated by United Airlines, Delta Air Lines, and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from IAH to ATL depart?** Scheduled IAH to ATL nonstops in the next 7 days with service leave between 05:29 and 21:12, local time at Houston. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate IAH to ATL nonstop?** The schedule table on this page lists 17 flight numbers for IAH to ATL nonstops, including DL 1069, DL 1315, DL 1435, DL 1585, and DL 1682 on Delta Air Lines; UA 1030 and UA 4036 on United Airlines; and F9 1404 on Frontier Airlines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on IAH to ATL?** Open the IAH to ATL route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [ATL to IAH upgrade and award space](https://2lnr.com/routes/atl-iah.md). Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from Houston (IAH)](https://2lnr.com/routes/iah.md), or [every route from Atlanta (ATL)](https://2lnr.com/routes/atl.md). Nonstops to Atlanta (ATL) from other airports within 150 miles of Houston (IAH): - [Houston (HOU) to Atlanta (ATL)](https://2lnr.com/routes/hou-atl.md), 24 miles from IAH - [Austin (AUS) to Atlanta (ATL)](https://2lnr.com/routes/aus-atl.md), 140 miles from IAH Nonstops from Houston (IAH) to other airports within 150 miles of Atlanta (ATL): - [Houston (IAH) to Chattanooga (CHA)](https://2lnr.com/routes/iah-cha.md), 106 miles from ATL - [Houston (IAH) to Birmingham (BHM)](https://2lnr.com/routes/iah-bhm.md), 134 miles from ATL - [Houston (IAH) to Montgomery (MGM)](https://2lnr.com/routes/iah-mgm.md), 147 miles from ATL Distances are great-circle between the airports, not driving distance. - [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss IAH to ATL upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. 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