HoustonWashingtonDirect FlightsIAH–DCA
Houston (George Bush Intercontinental Airport) to Washington (Ronald Reagan Washington National Airport).
Flight time from IAH to DCA is estimated at about 3h 4m, based on the 1,206-mile great-circle distance. Our current captured departure sample includes 9/day across 2 captured airlines, with United Airlines appearing most often in that sample. Captured departure times run from 06:00 to 19:50 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/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Captured airlines for IAH to DCA
Our current provider sample includes 9/day from IAH to DCA across 2 captured airlines. Captured departure terminal data is available for C, A.
- First departure
- 06:00
- Last departure
- 19:50
- Cadence
- ~hourly
- Captured departures/day
- 15
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| United Airlines | 6-7/day | Boeing 737, Airbus A320 family · Terminal C · Seat map | 07:35 |
Aircraft on this route
Flying the other way?
DCA to IAH flights — 9-10/day on 2 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for IAH to DCA, last seen June 15, 2026. Frequency uses 63 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 IAH to DCA?
The IAH to DCA flight time is estimated at about 3h 4m from great-circle distance until enough tracked flights are available.
How far is IAH from DCA?
IAH to DCA is about 1,206 miles by air.
Which airlines fly from IAH to DCA?
Our current provider sample for IAH to DCA includes United Airlines, American Airlines. Confirm live timetables before booking.
What aircraft fly from IAH to DCA?
Aircraft captured in our current provider sample for IAH to DCA include Boeing 737, Airbus A320 family, Bombardier CRJ.