--- title: "Houston (IAH) to Washington (DCA) flights: who flies it" description: "American Airlines and United Airlines fly nonstop from IAH to DCA, about 82 flights a week. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/iah-dca" url: "https://2lnr.com/routes/iah-dca.md" date_modified: "2026-10-18T05:10:47Z" --- # Houston to Washington (IAH-DCA): nonstop upgrade & award space United Airlines and American Airlines fly nonstop between Houston (IAH) and Washington (DCA), roughly 82 times a week. The timetable below shows the nonstop scheduled at 2h 54m to 3h 16m for the 1,206 miles. 2LNR checks confirmed upgrade and award space on American Airlines 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 DCA on the interactive map [Get started free](https://2lnr.com/login) 82 Flights a week, 4-week average 2h 54m to 3h 16m Scheduled flight time 1,206 mi Nonstop distance Free To get started ## Houston to Washington flight schedule Scheduled nonstop departures for IAH to DCA 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 Washington (DCA) | Date | Flight | Airline | Departs IAH | Arrives DCA | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | AA 5410 | American Airlines | 07:04 | 11:14 | 3h 10m | [Bombardier CRJ-700](https://2lnr.com/seatmaps/aa/crj-700.md) | | Thu, Oct 22 | UA 512 | United Airlines | 07:45 | 11:53 | 3h 8m | [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md) | | Thu, Oct 22 | UA 4031 | United Airlines | 09:43 | 13:59 | 3h 16m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Thu, Oct 22 | AA 5252 | American Airlines | 10:30 | 14:41 | 3h 11m | Bombardier CRJ-700 | | Thu, Oct 22 | UA 654 | United Airlines | 12:05 | 16:13 | 3h 8m | [Boeing 737-700](https://2lnr.com/seatmaps/ua/737-700.md) | | Thu, Oct 22 | UA 625 | United Airlines | 14:20 | 18:28 | 3h 8m | Boeing 737-700 | | Thu, Oct 22 | UA 235 | United Airlines | 16:55 | 21:05 | 3h 10m | [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md) | | Thu, Oct 22 | AA 5458 | American Airlines | 17:17 | 21:31 | 3h 14m | Bombardier CRJ-700 | | Thu, Oct 22 | UA 1627 | United Airlines | 18:05 | 22:14 | 3h 9m | Boeing 737-700 | | Thu, Oct 22 | UA 2224 | United Airlines | 19:50 | 23:59 | 3h 9m | [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md) | | Fri, Oct 23 | AA 5410 | American Airlines | 07:04 | 11:14 | 3h 10m | Bombardier CRJ-700 | | Fri, Oct 23 | UA 512 | United Airlines | 07:45 | 11:53 | 3h 8m | Boeing 737-800 | | Fri, Oct 23 | UA 4031 | United Airlines | 09:43 | 13:59 | 3h 16m | Embraer E175 | | Fri, Oct 23 | AA 5252 | American Airlines | 10:30 | 14:41 | 3h 11m | Bombardier CRJ-700 | | Fri, Oct 23 | UA 654 | United Airlines | 12:05 | 16:13 | 3h 8m | Boeing 737-700 | | Fri, Oct 23 | UA 625 | United Airlines | 14:20 | 18:28 | 3h 8m | Boeing 737-700 | | Fri, Oct 23 | UA 235 | United Airlines | 16:55 | 21:05 | 3h 10m | Airbus A319 | | Fri, Oct 23 | AA 5458 | American Airlines | 17:17 | 21:31 | 3h 14m | Bombardier CRJ-700 | | Fri, Oct 23 | UA 1627 | United Airlines | 18:05 | 22:14 | 3h 9m | Boeing 737-700 | | Fri, Oct 23 | UA 2224 | United Airlines | 19:50 | 23:59 | 3h 9m | Boeing 737 MAX 8 | | Sat, Oct 24 | UA 512 | United Airlines | 07:45 | 11:53 | 3h 8m | Boeing 737-800 | | Sat, Oct 24 | UA 4031 | United Airlines | 09:43 | 13:59 | 3h 16m | Embraer E175 | | Sat, Oct 24 | AA 5252 | American Airlines | 10:30 | 14:41 | 3h 11m | Bombardier CRJ-700 | | Sat, Oct 24 | UA 654 | United Airlines | 12:05 | 16:13 | 3h 8m | Boeing 737-700 | | Sat, Oct 24 | UA 235 | United Airlines | 16:40 | 20:50 | 3h 10m | Airbus A319 | | Sat, Oct 24 | UA 1627 | United Airlines | 18:05 | 22:14 | 3h 9m | Boeing 737-700 | | Sun, Oct 25 | UA 1966 | United Airlines | 07:45 | 11:47 | 3h 2m | Boeing 737-800 | | Sun, Oct 25 | UA 5548 | United Airlines | 09:40 | 13:48 | 3h 8m | Embraer E175 | | Sun, Oct 25 | UA 2311 | United Airlines | 09:45 | 13:39 | 2h 54m | Boeing 737-700 | | Sun, Oct 25 | AA 5252 | American Airlines | 10:30 | 14:41 | 3h 11m | Bombardier CRJ-700 | | Sun, Oct 25 | UA 654 | United Airlines | 12:05 | 16:13 | 3h 8m | Boeing 737-700 | | Sun, Oct 25 | UA 625 | United Airlines | 14:20 | 18:28 | 3h 8m | Boeing 737-700 | | Sun, Oct 25 | UA 2079 | United Airlines | 16:55 | 20:56 | 3h 1m | [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md) | | Sun, Oct 25 | UA 331 | United Airlines | 16:55 | 20:57 | 3h 2m | Airbus A320 | | Sun, Oct 25 | AA 5458 | American Airlines | 17:17 | 21:31 | 3h 14m | Bombardier CRJ-700 | | Sun, Oct 25 | UA 1627 | United Airlines | 18:05 | 22:14 | 3h 9m | Boeing 737-700 | | Sun, Oct 25 | UA 2224 | United Airlines | 19:50 | 23:59 | 3h 9m | Boeing 737 MAX 8 | | Mon, Oct 26 | AA 5410 | American Airlines | 07:04 | 11:14 | 3h 10m | Bombardier CRJ-700 | | Mon, Oct 26 | UA 1966 | United Airlines | 07:45 | 11:47 | 3h 2m | Boeing 737-800 | | Mon, Oct 26 | UA 5548 | United Airlines | 09:40 | 13:48 | 3h 8m | Embraer E175 | Showing the first 40 of 72 scheduled IAH to DCA 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 DCA date on the interactive map ## Aircraft on the Houston to Washington nonstop In the schedule table on this page, United Airlines flies the [Boeing 737-700](https://2lnr.com/seatmaps/ua/737-700.md), the [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md), the [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md), the [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md), the [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md), and the [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md), and American Airlines flies the [Bombardier CRJ-700](https://2lnr.com/seatmaps/aa/crj-700.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 DCA departures 2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Houston to Washington to see which departures have space, the next 14 days free on every product and the full horizon on Pro. American Airlines award space was open on 8 of the 14 Houston to Washington 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 DCA 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 DCA on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Houston to Washington nonstop Carriers operating IAH to DCA 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) - [American Airlines (AA) route map](https://2lnr.com/routes/airlines/aa.md)\ [The aircraft AA flies](https://2lnr.com/seatmaps/aa.md) See IAH to DCA on the interactive map → ## Frequently asked questions about IAH to DCA **How long is the flight from Houston (IAH) to Washington (DCA)?** Scheduled flight times from Houston (IAH) to Washington (DCA) run from 2h 54m to 3h 16m across the departures in the schedule table on this page. The nonstop covers about 1,206 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from IAH to DCA?** United Airlines and American Airlines fly IAH to DCA nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines. **How many flights a week are there from IAH to DCA?** About 82 nonstop flights a week run between Houston (IAH) and Washington (DCA) in the current schedule, operated by United Airlines and American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from IAH to DCA depart?** Scheduled IAH to DCA nonstops in the next 7 days with service leave between 07:04 and 19:50, 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 DCA nonstop?** The schedule table on this page lists 15 flight numbers for IAH to DCA nonstops, including UA 235, UA 512, UA 625, UA 654, UA 1627, and UA 4031 on United Airlines, and AA 5252 and AA 5410 on American Airlines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on IAH to DCA?** Open the IAH to DCA route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, 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 [DCA to IAH upgrade and award space](https://2lnr.com/routes/dca-iah.md). Award seats rather than schedules? See [American Airlines award availability](https://2lnr.com/awards/aa.md). Looking beyond this route? See [every route from Houston (IAH)](https://2lnr.com/routes/iah.md), or [every route from Washington (DCA)](https://2lnr.com/routes/dca.md). Nonstops from Houston (IAH) to other airports within 150 miles of Washington (DCA): - [Houston (IAH) to Washington (IAD)](https://2lnr.com/routes/iah-iad.md), 23 miles from DCA - [Houston (IAH) to Baltimore (BWI)](https://2lnr.com/routes/iah-bwi.md), 30 miles from DCA - [Houston (IAH) to Richmond (RIC)](https://2lnr.com/routes/iah-ric.md), 94 miles from DCA - [Houston (IAH) to Philadelphia (PHL)](https://2lnr.com/routes/iah-phl.md), 120 miles from DCA - [Houston (IAH) to Norfolk (ORF)](https://2lnr.com/routes/iah-orf.md), 143 miles from DCA Distances are great-circle between the airports, not driving distance. - [How American upgrades clear](https://2lnr.com/about/aa/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss IAH to DCA 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. [Get started free](https://2lnr.com/login)