PlainFlights

Route · DEN → DCA · 2020–2025 BTS data

Denver to Washington

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to DCA (Denver to Washington) ranks #1528 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.7%
On-time
+2.7 pts
vs US avg
67 min
Delay when late
8,053
Flights
#1528 of 4927
Corpus placement

Cancelled

0.8%

Best Month

Oct 2025 88%

Worst Month

Feb 2025 54%

Distance

1,476 mi

Carriers

2

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 114 15 0 0 F9,UA
Nov 2025 112 21 0 0 UA,F9
Oct 2025 115 14 0 0 UA,F9
Sep 2025 110 25 0 1 UA,F9
Aug 2025 116 26 0 1 F9,UA
Jul 2025 114 28 1 5 UA,F9
Jun 2025 109 35 0 2 UA,F9
May 2025 123 26 1 1 UA,F9
Apr 2025 120 21 0 0 F9,UA
Mar 2025 124 33 0 0 UA,F9
Feb 2025 112 51 0 1 UA,F9
Jan 2025 124 36 4 1 UA,F9
Dec 2024 124 21 0 0 F9,UA
Nov 2024 120 28 1 0 UA,F9
Oct 2024 124 27 0 0 UA,F9
Sep 2024 120 15 2 1 UA,F9
Aug 2024 124 24 3 2 F9,UA
Jul 2024 124 29 3 3 F9,UA
Jun 2024 119 24 2 0 F9,UA
May 2024 124 37 1 2 F9,UA
Apr 2024 120 31 2 0 F9,UA
Mar 2024 124 22 3 0 F9,UA
Feb 2024 116 20 0 0 F9,UA
Jan 2024 124 28 0 0 F9,UA

DEN–DCA seasonal on-time pattern

Best: November (84.7%) · weakest: February (77.3%)

76%78%80%82%84%86% JanFebMarAprMayJunJulAugSepOctNovDec 84.6%

Strongest calendar month

November

84.7% on-time · ~114 flights/mo

Busiest calendar month

January

~118 flights/mo avg

Weakest calendar month

February

77.3% on-time · ~109 flights/mo

Cancellation Rate

0.8%

23 of 2,856 flights

Diversion Rate

0.7%

20 of 2,856 flights

Origin-hub reliability standing

Mid-pack among DEN departures

From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Washington · fleet on-time rank #2465 of 4927.

What the Data Says About DEN to DCA

8,053 tracked flights put the DEN to DCA pairing (Denver to Washington) at a 81.7% on-time rate, squarely in line with the wider network. Delays that do occur run 67.0 minutes on average. Across the 1,476-mile route and its 2 carriers, the trailing 24 months show 0.8% cancelled and 0.7% diverted (2,856 flights sampled).

The monthly split is wide on this route: Oct 2025 posted the strongest performance at 88% on-time, while Feb 2025 came in at just 54% - a 33-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–DCA peaks in November at 84.7% on-time while January carries the heaviest traffic (~118 flights per month) ; the softest month is February at 77.3%, a 7.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to DCA rank among US routes by traffic?
According to PlainFlights' route traffic ranking, DEN to DCA ranks #1528 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 DEN to DCA?
Flights from Denver to Washington have a 81.7% on-time rate based on 8,053 flights. The average delay is 67.0 minutes. The best recent month was Oct 2025 with 88% on-time.
What is the cancellation rate for DEN to DCA?
Over the last 24 months, 0.8% of flights on this route were cancelled (23 of 2,856 flights) and 0.7% were diverted.
How far is the flight from DEN to DCA?
The flight distance from Denver (DEN) to Washington (DCA) is approximately 1,476 miles. This route is served by 2 carriers.
When is the best time to fly from DEN to DCA?
The best recent month for on-time performance was Oct 2025 (88% on-time). The worst was Feb 2025 (54% on-time). Consider booking during months with historically better performance.

Airports on this route

Data source

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

Using DEN–DCA data

DEN–DCA is mid-pack at 81.7% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and DCA airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, November (84.7% on-time) beats February (77.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.7% 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.