St Louis (STL) to Dulles (IAD) flights
GoJet Airlines flies nonstop from St. Louis Lambert International Airport to Washington Dulles International Airport, with about 14 flights a week in July 2026. The 696-mile flight takes about 2h 2m gate to gate.
- Distance
- 696 mi · 1,120 km
- Flight time
- 2h 2m
- Airlines
- 1
- Seats filled
- 79%
Airlines flying STL to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| GoJet Airlines | 14 | Bombardier CRJ550 | 27,939 | 2h 2m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to IAD flight schedule
2 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 8:40am and the last at 1:00pm. 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) |
|---|---|---|---|---|
| UA 4506United Airlines · operated by GoJet Airlines | 8:40am | 11:54am | 30 | 81% |
| UA 4454United Airlines · operated by GoJet Airlines | 1:00pm | 4:06pm | 31 | 73% |
Is STL to IAD on time?
From September 2025 to August 2026, 77% of 717 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 8am were the most punctual (82%), those around 1pm the least (66%). Most delay time was caused by late-arriving aircraft (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 717 | 77% | 33 min | 0.8% |
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 |
|---|---|---|---|
| 8am to 9am | 352 | 82% | |
| 12pm to 1pm | 235 | 76% | |
| 1pm to 2pm | 130 | 66% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 63 | 2,691 | |
| September 2025 | 59 | 2,523 | |
| October 2025 | 52 | 2,025 | |
| November 2025 | 59 | 2,424 | |
| December 2025 | 62 | 2,456 | |
| January 2026 | 59 | 2,266 | |
| February 2026 | 57 | 2,284 | |
| March 2026 | 63 | 2,551 | |
| April 2026 | 60 | 2,166 | |
| May 2026 | 62 | 2,427 | |
| June 2026 | 60 | 2,462 | |
| July 2026 | 61 | 2,391 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.