Dulles (IAD) to Los Angeles (LAX) flights
United Airlines, American Airlines fly nonstop from Washington Dulles International Airport to Los Angeles International Airport, with about 55 flights a week in July 2026. The 2,288-mile flight takes about 5h 32m gate to gate.
- Distance
- 2,288 mi · 3,682 km
- Flight time
- 5h 32m
- Airlines
- 2
- Seats filled
- 86%
Airlines flying IAD to LAX
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 48 | Boeing 737 MAX 9, Boeing 737-900ER, Boeing 757-300 | 389,860 | 5h 32m |
| American Airlines | 7 | Boeing 737 MAX 8, Boeing 737-800 | 16,687 | 5h 27m |
| Alaska AirlinesSeasonal or ended | n/a | Boeing 737-900ER, Boeing 737 MAX 9 | 2,839 | 5h 21m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to LAX flight schedule
11 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 6:20am and the last at 10:20pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AA 1225American Airlines | 6:20am | 8:54am | 4 | 82% |
| UA 319United Airlines | 7:00am | 9:34am | 21 | 100% |
| UA 325United Airlines | 7:00am | 9:26am | 10 | 91% |
| UA 1734United Airlines | 8:20am | 10:52am | 19 | 87% |
| UA 1876United Airlines | 9:00am | 11:32am | 21 | 91% |
| UA 1868United Airlines | 9:10am | 11:39am | 10 | 84% |
| UA 1689United Airlines | 1:00pm | 3:23pm | 31 | 90% |
| UA 684United Airlines | 3:15pm | 5:47pm | 10 | 87% |
| UA 2276United Airlines | 5:42pm | 8:18pm | 31 | 70% |
| UA 413United Airlines | 8:15pm | 10:52pm | 4 | 76% |
| UA 1385United Airlines | 10:20pm | 12:57am | 19 | 84% |
Is IAD to LAX on time?
From September 2025 to August 2026, 84% of 2,460 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 7am were the most punctual (92%), those around 5pm the least (75%). Most delay time was caused by late-arriving aircraft (33%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 2,340 | 85% | 10 min | 0.8% |
| American Airlines | 120 | 75% | 15 min | 0% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 184 | 82% | |
| 7am to 8am | 169 | 92% | |
| 8am to 9am | 260 | 88% | |
| 9am to 10am | 154 | 89% | |
| 12pm to 1pm | 267 | 89% | |
| 1pm to 2pm | 98 | 92% | |
| 3pm to 4pm | 228 | 86% | |
| 5pm to 6pm | 217 | 75% | |
| 6pm to 7pm | 265 | 76% | |
| 7pm to 8pm | 120 | 79% | |
| 8pm to 9pm | 174 | 82% | |
| 10pm to 11pm | 324 | 84% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 195 | 32,362 | |
| September 2025 | 175 | 26,249 | |
| October 2025 | 203 | 34,066 | |
| November 2025 | 198 | 30,280 | |
| December 2025 | 214 | 36,320 | |
| January 2026 | 166 | 27,995 | |
| February 2026 | 158 | 25,089 | |
| March 2026 | 184 | 32,441 | |
| April 2026 | 223 | 35,445 | |
| May 2026 | 252 | 42,034 | |
| June 2026 | 250 | 43,392 | |
| July 2026 | 242 | 43,713 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.