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Route · IAD → CVG · 2020–2025 BTS data

Washington to Cincinnati

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAD to CVG (Washington to Cincinnati) ranks #3861 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

85.2%
On-time
+6.2 pts
vs US avg
79 min
Delay when late
1,945
Flights
#3861 of 4927
Corpus placement

Cancelled

0.9%

Best Month

Oct 2022 90%

Worst Month

Dec 2025 68%

Distance

388 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 57 18 0 0 YX
Nov 2025 85 16 3 0 YX
Oct 2025 59 12 0 0 YX
Sep 2025 50 3 0 0 YX
Aug 2025 55 10 1 0 YX
Jul 2025 30 5 0 0 YX
Jun 2025 45 9 0 1 YX
May 2025 41 3 0 0 YX
Apr 2025 30 1 0 0 YX
Mar 2025 33 4 0 0 YX
Dec 2024 46 2 0 0 YX
Nov 2024 30 2 0 0 YX
Oct 2024 30 0 0 0 YX
Sep 2024 30 1 0 0 YX
Aug 2024 53 6 4 0 YX
Jul 2024 31 2 1 0 YX
Jun 2024 30 3 0 0 YX
May 2024 31 3 0 0 YX,UA
Apr 2024 34 4 0 0 YX
Mar 2024 31 2 0 0 YX
Jan 2024 40 8 0 0 YX
Oct 2022 58 6 0 0 YX,YV
Sep 2022 50 9 0 0 YV,YX
Apr 2022 90 17 1 1 YV,YX

IAD–CVG seasonal on-time pattern

Best: May (91.7%) · weakest: July (77.0%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 83.5%

Strongest calendar month

May

91.7% on-time · ~36 flights/mo

Busiest calendar month

November

~57 flights/mo avg

Weakest calendar month

July

77.0% on-time · ~41 flights/mo

Cancellation Rate

0.9%

10 of 1,069 flights

Diversion Rate

0.2%

2 of 1,069 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

IAD - Washington

Full on-time, delay-cause, and seasonal performance for Washington, DC.

IAD on-time profile

CVG - Cincinnati

Full on-time, delay-cause, and seasonal performance for Cincinnati, OH.

CVG on-time profile

Compare the two airports

See IAD and CVG side by side on delays, cancellations, and reliability.

Compare IAD vs CVG

Origin-hub reliability standing

Among IAD's stronger departures

IAD → CVG posts a 85.2% on-time rate, landing in the ≥85% band with 14 of 58 BTS-tracked routes leaving Washington. The same hub also shows 42 mid-band and 2 challenged departures · fleet-wide on-time rank #1151 of 4927 (highest on-time = #1).

What the Data Says About IAD to CVG

Washington to Cincinnati (IAD to CVG) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.2% on-time rate across 1,945 flights, with delays that do happen averaging 78.7 minutes. The corridor runs roughly 388 miles and is served by 6 carriers. Over the most recent 24 months, 10 of 1,069 flights were cancelled (0.9%) and 2 diverted (0.2%).

The monthly split is wide on this route: Oct 2022 posted the strongest performance at 90% on-time, while Dec 2025 came in at just 68% - a 21-point swing worth factoring into travel timing.

On the multi-year calendar, IAD–CVG peaks in May at 91.7% on-time while November carries the heaviest traffic (~57 flights per month) ; the softest month is July at 77.0%, a 14.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAD to CVG rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAD to CVG ranks #3861 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from IAD to CVG? ▼
Flights from Washington to Cincinnati have a 85.2% on-time rate based on 1,945 flights. The average delay is 78.7 minutes. The best recent month was Oct 2022 with 90% on-time.
What is the cancellation rate for IAD to CVG? ▼
Over the last 24 months, 0.9% of flights on this route were cancelled (10 of 1,069 flights) and 0.2% were diverted.
How far is the flight from IAD to CVG? ▼
The flight distance from Washington (IAD) to Cincinnati (CVG) is approximately 388 miles. This route is served by 6 carriers.
When is the best time to fly from IAD to CVG? ▼
The best recent month for on-time performance was Oct 2022 (90% on-time). The worst was Dec 2025 (68% on-time). Consider booking during months with historically better performance.

Airports on this route

IAD Airport

Washington
CVG Airport

Cincinnati
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using IAD–CVG data

IAD–CVG runs 6.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare IAD and CVG airport profiles: delay causes and top routes differ even on the same corridor. IAD airport
  • If your dates flex, May (91.7% on-time) beats July (77.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 85.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.