CVG to IAD flight delays
Cincinnati, KY (CVG) Washington, VA (IAD) · 388 miles
554 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
87.98%
Arrived on time
Within 15 minutes of schedule
0.9%
Cancelled
Share of scheduled flights
75 min
When late, late by
Average across delayed arrivals
10 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In July it ran 28.2 points more punctual than in December — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 75 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The two directions do not behave alike. IAD to CVG arrives on time 6.9 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Flights from Cincinnati to Washington keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, Republic Airways arrived on time most often on CVG to IAD. Flights ran closest to schedule in January and worst in December.
Every airline on CVG to IAD
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Republic Airways | 536 | 87.76% | 0.93% | 76 min | A |
| United Airlines | 18 | 94.44% | 0% | 16 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
IAD to CVG Washington back to Cincinnati 81.08% on time COther routes from Cincinnati
Common questions
Are flights from Cincinnati to Washington usually delayed?
87.98% of flights on the CVG to IAD route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Cincinnati to Washington?
Only Republic Airways appears in the published record on this route, with 536 flights and 87.76% arriving on time.
How often are CVG to IAD flights cancelled?
0.9% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Cincinnati to Washington?
July, when 96.8% of flights arrived on time. The worst was December at 68.6%.
When CVG to IAD flights are late, how late are they?
About 75 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on CVG to IAD during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →