WashingtonHoustonDirect FlightsDCA–IAH
Washington (Ronald Reagan Washington National Airport) to Houston (George Bush Intercontinental Airport).
Flight time from DCA to IAH is estimated at about 3h 4m, based on the 1,206-mile great-circle distance. Our current captured departure sample includes 9-10/day across 2 captured airlines, with United Airlines appearing most often in that sample. Captured departure times run from 06:00 to 21:46 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Captured freq. | Type |
|---|---|---|---|
| ~3h 4m Estimated from great-circle distance — no tracked flights yet. | 1,206 mi | 9-10/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Captured airlines for DCA to IAH
Our current provider sample includes 9-10/day from DCA to IAH across 2 captured airlines. Captured departure terminal data is available for 2.
- First departure
- 06:00
- Last departure
- 21:46
- Cadence
- ~every 2 hours
- Captured departures/day
- 12
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| United Airlines | 6-7/day | Airbus A320 family, Boeing 737 · Terminal 2 · Seat map | 06:00 |
Aircraft on this route
Flying the other way?
IAH to DCA flights — 9/day on 2 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for DCA to IAH, last seen June 15, 2026. Frequency uses 65 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.
Route FAQ
How long is the flight from DCA to IAH?
The DCA to IAH flight time is estimated at about 3h 4m from great-circle distance until enough tracked flights are available.
How far is DCA from IAH?
DCA to IAH is about 1,206 miles by air.
Which airlines fly from DCA to IAH?
Our current provider sample for DCA to IAH includes United Airlines, American Airlines. Confirm live timetables before booking.
What aircraft fly from DCA to IAH?
Aircraft captured in our current provider sample for DCA to IAH include Airbus A320 family, Boeing 737, Bombardier CRJ.