Columbus (CMH) to Dulles (IAD)
Flight time
≈ 1h 24m
Bearing
102° E
Columbus (CMH) to Dulles (IAD) is 299 miles (481 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
Look up a route, or build a trip
Change the airports, or add stops for a multi-leg trip.
What actually flies CMH–IAD
US DOT T-100 · filed dataIn April 2026, United Airlines operated the most departures, one of 5 carriers flying nonstop CMH–IAD; the Embraer E175 was the most common aircraft at 50% of departures; flights ran 72% full.
Departures
242
April 2026
Seats
24,264
both directions
Passengers
17,499
both directions
Load factor
72.1%
passengers ÷ seats
Who flies CMH–IAD?
United Airlines operated the most nonstop CMH–IAD departures in April 2026 (110), one of 5 carriers on the route.
- UA
United Airlines
110 departures · 14,764 seats
Share of departures45.5%63.8%
Load
- YX
Republic Airways
62 departures · 4,712 seats
Share of departures25.6%80.8%
Load
- YV
Mesa Airlines
58 departures · 4,144 seats
Share of departures24.0%88.7%
Load
- C5
CommuteAir
10 departures · 500 seats
Share of departures4.1%92.4%
Load
- DL
Delta Air Lines
2 departures · 144 seats
Share of departures0.8%88.9%
Load
What plane flies CMH–IAD?
In April 2026, the Embraer E175 flew 50% of CMH–IAD departures — more than any other aircraft type.
- Embraer E175
120 departures · 84.5% load
49.6% - Boeing 737-700
88 departures · 68.4% load
36.4% - Embraer ERJ-145
10 departures · 92.4% load
4.1% - Boeing 737 MAX 8
10 departures · 50.5% load
4.1% - Boeing 737-900ER
4 departures · 53.8% load
1.7% - Boeing 737 MAX 9
4 departures · 45.1% load
1.7% - Boeing 737-800
2 departures · 47.6% load
0.8% - Airbus A319
2 departures · 56.0% load
0.8% - Boeing 757-200
2 departures · 88.9% load
0.8%
How has CMH–IAD traffic changed?
Nonstop CMH–IAD departures fell from 311 in May 2025 to 242 in April 2026.
Monthly nonstop CMH–IAD traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
311 departures · 22,996 passengers
82.4%
Load
June 2025
289 departures · 20,681 passengers
77.3%
Load
July 2025
236 departures · 14,579 passengers
84.8%
Load
August 2025
245 departures · 16,282 passengers
76.5%
Load
September 2025
290 departures · 22,147 passengers
68.8%
Load
October 2025
252 departures · 17,292 passengers
80.0%
Load
November 2025
237 departures · 15,513 passengers
76.7%
Load
December 2025
248 departures · 16,159 passengers
74.8%
Load
January 2026
236 departures · 13,269 passengers
66.4%
Load
February 2026
219 departures · 14,387 passengers
63.3%
Load
March 2026
248 departures · 18,237 passengers
71.6%
Load
April 2026
242 departures · 17,499 passengers
72.1%
Load
By direction
The DOT files each direction separately — they rarely match.
CMH → IAD
72.5% full
121 departures · 8,794 passengers
IAD → CMH
71.8% full
121 departures · 8,705 passengers
Nonstop CMH–IAD traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Columbus (CMH) from Dulles (IAD)?
CMH to IAD is 299 miles (481 km / 260 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from CMH to IAD?
A nonstop covers the 299-mile great-circle distance in roughly 1h 24m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies CMH–IAD?
In April 2026, the Embraer E175 flew the largest share of departures (49.6%), followed by the Boeing 737-700 (36.4%).
What mileage do I earn flying CMH–IAD?
Distance-based programs credit off the 299-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
Keep exploring
Every route below is its own page.
Other routes from CMH
Popular long-haul routes