United's Economy Plus offers extra legroom and priority boarding for a more comfortable journey.
Prepay checked bags 24 hours before flight to save on fees.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $189 (United Airlines) |
One-way from | $64 (Priceline) |
Popular in | March |
Cheapest in | February |
Average price | $305 |
Good round-trip deal | $315 or less |
Good one-way deal | $206 or less |
Fly from
Fly to
Route
Depart
Return
Price
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Wed 12/24
10:20 am-11:55 am
Nonstop1h 35m
Washington, D.C. Dulles Intl
Sat 12/27
10:14 pm-11:59 pm
Nonstop1h 45m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Wed 12/24
10:20 am-11:55 am
Nonstop1h 35m
Washington, D.C. Dulles Intl
Sat 1/3
10:14 pm-11:59 pm
Nonstop1h 45m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Thu 1/22
10:05 am-11:41 am
Nonstop1h 36m
Washington, D.C. Dulles Intl
Sun 1/25
12:35 pm-2:19 pm
Nonstop1h 44m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Thu 1/29
10:05 am-11:41 am
Nonstop1h 36m
Washington, D.C. Dulles Intl
Sun 2/1
12:35 pm-2:19 pm
Nonstop1h 44m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Fri 1/2
6:00 am-7:35 am
Nonstop1h 35m
Washington, D.C. Dulles Intl
Fri 1/9
12:35 pm-2:19 pm
Nonstop1h 44m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Thu 1/29
7:59 pm-12:24 am
1 stop4h 25m
Washington, D.C. Dulles Intl
Sun 2/1
6:00 am-1:20 pm
1 stop7h 20m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Fri 1/30
7:40 am-2:45 pm
1 stop7h 05m
Washington, D.C. Dulles Intl
Sun 2/1
6:00 am-1:20 pm
1 stop7h 20m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Fri 1/23
12:13 pm-6:21 pm
1 stop6h 08m
Washington, D.C. Dulles Intl
Mon 1/26
6:00 am-1:20 pm
1 stop7h 20m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Wed 12/31
6:00 am-7:35 am
Nonstop1h 35m
Washington, D.C. Dulles Intl
Fri 1/2
8:30 am-10:17 am
Nonstop1h 47m
CincinnatiWashington, D.C.
CVG - IAD
CVGIAD
Cincinnati Cinci./N. Kentucky
Sun 12/7
6:00 am-7:35 am
Nonstop1h 35m
Washington, D.C. Dulles Intl
Tue 12/16
12:35 pm-2:16 pm
Nonstop1h 41m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
The best time to book flights from Cincinnati to Washington, D.C. Dulles Intl Airport is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, February is the cheapest month in which you can book a flight from Cincinnati to Washington, D.C. Dulles Intl Airport (average of $179). Flying from Cincinnati to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Cincinnati to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their Cincinnati to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$282 | FlexibilityNo cancel fee | On-time69% |