Dulles (IAD) to Columbus (CMH) flights
GoJet Airlines, Mesa Airlines, CommuteAir, Republic Airline fly nonstop from Washington Dulles International Airport to John Glenn Columbus International Airport, with about 26 flights a week in July 2026. The 299-mile flight takes about 1h 23m gate to gate.
- Distance
- 299 mi · 481 km
- Flight time
- 1h 23m
- Airlines
- 4
- Seats filled
- 75%
Airlines flying IAD to CMH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| GoJet Airlines | 18 | Bombardier CRJ550 | 6,743 | 1h 26m |
| Mesa Airlines | 5 | Embraer E175 | 16,157 | 1h 22m |
| CommuteAir | 2 | Embraer ERJ-145 | 2,797 | 1h 31m |
| Republic Airline | 1 | Embraer E175, Embraer E170 | 36,051 | 1h 24m |
| United AirlinesSeasonal or ended | n/a | Boeing 737-700 / MAX 7, Airbus A319, Airbus A320-100/200 | 34,357 | 1h 20m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IAD to CMH flight schedule
8 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 8:21am and the last at 10:15pm. 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 3986United Airlines · operated by Mesa Airlines | 8:21am | 9:46am | 21 | 91% |
| UA 4076United Airlines · operated by Mesa Airlines | 8:25am | 9:49am | 6 | 84% |
| UA 4420United Airlines · operated by GoJet Airlines | 12:45pm | 2:11pm | 10 | 76% |
| UA 204United Airlines | 12:55pm | 2:18pm | 21 | 100% |
| UA 4588United Airlines · operated by GoJet Airlines | 5:25pm | 6:57pm | 8 | 78% |
| UA 1159United Airlines | 5:31pm | 7:00pm | 21 | 38% |
| UA 3646United Airlines · operated by Republic Airline | 10:15pm | 11:44pm | 21 | 82% |
| UA 4414United Airlines · operated by GoJet Airlines | 10:15pm | 11:42pm | 8 | 68% |
Is IAD to CMH on time?
From September 2025 to August 2026, 82% of 1,476 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 8am were the most punctual (87%), those around 5pm the least (78%). Most delay time was caused by late-arriving aircraft (38%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,476 | 82% | 15 min | 1.4% |
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 | 363 | 87% | |
| 12pm to 1pm | 365 | 84% | |
| 5pm to 6pm | 365 | 78% | |
| 10pm to 11pm | 361 | 80% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 123 | 8,250 | |
| September 2025 | 142 | 10,400 | |
| October 2025 | 124 | 8,570 | |
| November 2025 | 115 | 7,264 | |
| December 2025 | 123 | 7,928 | |
| January 2026 | 118 | 7,171 | |
| February 2026 | 109 | 7,423 | |
| March 2026 | 125 | 8,865 | |
| April 2026 | 120 | 8,641 | |
| May 2026 | 123 | 8,743 | |
| June 2026 | 120 | 7,030 | |
| July 2026 | 117 | 5,820 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.