Columbus (CMH) to Dulles (IAD) flights
GoJet Airlines, Mesa Airlines, CommuteAir, Republic Airline fly nonstop from John Glenn Columbus International Airport to Washington Dulles International Airport, with about 26 flights a week in July 2026. The 299-mile flight takes about 1h 19m gate to gate.
- Distance
- 299 mi · 481 km
- Flight time
- 1h 19m
- Airlines
- 4
- Seats filled
- 75%
Airlines flying CMH to IAD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| GoJet Airlines | 18 | Bombardier CRJ550 | 6,339 | 1h 19m |
| Mesa Airlines | 5 | Embraer E175 | 16,345 | 1h 19m |
| CommuteAir | 2 | Embraer ERJ-145 | 2,744 | 1h 28m |
| Republic Airline | <1 | Embraer E175, Embraer E170 | 35,753 | 1h 21m |
| United AirlinesSeasonal or ended | n/a | Boeing 737-700 / MAX 7, Airbus A319, Airbus A320-100/200 | 34,855 | 1h 15m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
CMH to IAD flight schedule
8 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 6:00am and the last at 7:59pm. 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 3430United Airlines · operated by Republic Airline | 6:00am | 7:25am | 21 | 95% |
| UA 4428United Airlines · operated by GoJet Airlines | 6:00am | 7:23am | 8 | 75% |
| UA 3985United Airlines · operated by Mesa Airlines | 10:30am | 11:55am | 21 | 86% |
| UA 4056United Airlines · operated by Mesa Airlines | 10:30am | 11:54am | 6 | 70% |
| UA 4387United Airlines · operated by GoJet Airlines | 2:53pm | 4:22pm | 10 | 69% |
| UA 1338United Airlines | 3:15pm | 4:35pm | 21 | 81% |
| UA 4593United Airlines · operated by GoJet Airlines | 7:40pm | 9:09pm | 8 | 81% |
| UA 1273United Airlines | 7:59pm | 9:19pm | 21 | 48% |
Is CMH to IAD on time?
From September 2025 to August 2026, 83% of 1,475 flights arrived within 15 minutes of schedule and 1.3% were cancelled. Flights leaving around 6am were the most punctual (94%), those around 3pm the least (73%). Most delay time was caused by late-arriving aircraft (46%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,475 | 83% | 17 min | 1.3% |
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 | 362 | 94% | |
| 10am to 11am | 363 | 84% | |
| 2pm to 3pm | 252 | 73% | |
| 3pm to 4pm | 113 | 73% | |
| 7pm to 8pm | 265 | 79% | |
| 8pm to 9pm | 98 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 122 | 8,032 | |
| September 2025 | 142 | 11,098 | |
| October 2025 | 124 | 8,327 | |
| November 2025 | 117 | 7,642 | |
| December 2025 | 124 | 8,231 | |
| January 2026 | 117 | 6,098 | |
| February 2026 | 110 | 6,964 | |
| March 2026 | 123 | 9,372 | |
| April 2026 | 120 | 8,730 | |
| May 2026 | 122 | 9,170 | |
| June 2026 | 121 | 6,914 | |
| July 2026 | 117 | 5,727 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.