PlainFlights

Route · DCA → MIA · 2020–2025 BTS data

Washington to Miami

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DCA to MIA (Washington to Miami) ranks #384 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

79.4%
On-time
+0.4 pts
vs US avg
83 min
Delay when late
18,948
Flights
#384 of 4927
Corpus placement

Cancelled

2.1%

Best Month

Nov 2024 92%

Worst Month

Aug 2024 63%

Distance

919 mi

Carriers

12

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 344 83 0 0 DL,YX,AA
Nov 2025 310 68 5 0 AA,DL,YX
Oct 2025 337 74 1 0 AA,YX,DL,MQ
Sep 2025 326 103 2 2 DL,YX,AA
Aug 2025 335 90 3 1 AA,YX,DL
Jul 2025 332 106 26 2 AA,YX,DL
Jun 2025 326 99 10 2 AA,YX,DL
May 2025 339 82 8 1 AA,DL
Apr 2025 325 73 2 1 AA,DL
Mar 2025 372 69 6 1 AA,YX,DL
Feb 2025 334 66 5 2 AA,YX,DL
Jan 2025 368 63 21 1 AA,YX,DL
Dec 2024 354 67 0 0 AA,DL,YX
Nov 2024 339 28 0 0 YX,DL,AA
Oct 2024 326 42 5 1 DL,YX,AA
Sep 2024 294 39 1 3 AA,DL
Aug 2024 330 123 16 2 AA,DL,MQ,YX
Jul 2024 316 83 8 1 AA,DL
Jun 2024 298 80 21 0 AA,DL,YX
May 2024 332 95 4 1 AA,DL,YX
Apr 2024 326 54 2 2 AA,DL,YX
Mar 2024 341 76 14 1 AA,DL,YX
Feb 2024 317 57 1 1 AA,DL,YX
Jan 2024 338 100 8 1 AA,DL,MQ,YX

DCA–MIA seasonal on-time pattern

Best: November (84.1%) · weakest: August (73.0%)

70%75%80%85% JanFebMarAprMayJunJulAugSepOctNovDec 81.2%

Strongest calendar month

November

84.1% on-time · ~278 flights/mo

Busiest calendar month

December

~292 flights/mo avg

Weakest calendar month

August

73.0% on-time · ~254 flights/mo

Cancellation Rate

2.1%

169 of 7,959 flights

Diversion Rate

0.3%

26 of 7,959 flights

Explore origin & destination

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

DCA - Washington

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

DCA on-time profile

MIA - Miami

Full on-time, delay-cause, and seasonal performance for Miami, FL.

MIA on-time profile

Compare the two airports

See DCA and MIA side by side on delays, cancellations, and reliability.

Compare DCA vs MIA

Origin-hub reliability standing

Mid-pack among DCA departures

From DCA, this corridor sits with 77 other 75–85% on-time routes out of 91 tracked departures, not the hub's reliability leaders (4 at ≥85%) and not the softest ( 10 below 75%). Destination: Miami · fleet on-time rank #3365 of 4927.

What the Data Says About DCA to MIA

18,948 tracked flights put the DCA to MIA pairing (Washington to Miami) at a 79.4% on-time rate, squarely in line with the wider network. Delays that do occur run 82.9 minutes on average. Across the 919-mile route and its 12 carriers, the trailing 24 months show 2.1% cancelled and 0.3% diverted (7,959 flights sampled).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 92% on-time, while Aug 2024 came in at just 63% - a 29-point swing worth factoring into travel timing.

On the multi-year calendar, DCA–MIA peaks in November at 84.1% on-time while December carries the heaviest traffic (~292 flights per month) ; the softest month is August at 73.0%, a 11.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DCA to MIA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DCA to MIA ranks #384 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 DCA to MIA? ▼
Flights from Washington to Miami have a 79.4% on-time rate based on 18,948 flights. The average delay is 82.9 minutes. The best recent month was Nov 2024 with 92% on-time.
What is the cancellation rate for DCA to MIA? ▼
Over the last 24 months, 2.1% of flights on this route were cancelled (169 of 7,959 flights) and 0.3% were diverted.
How far is the flight from DCA to MIA? ▼
The flight distance from Washington (DCA) to Miami (MIA) is approximately 919 miles. This route is served by 12 carriers.
When is the best time to fly from DCA to MIA? ▼
The best recent month for on-time performance was Nov 2024 (92% on-time). The worst was Aug 2024 (63% on-time). Consider booking during months with historically better performance.

Airports on this route

DCA Airport

Washington
MIA Airport

Miami
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 DCA–MIA data

DCA–MIA is mid-pack at 79.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare DCA and MIA airport profiles: delay causes and top routes differ even on the same corridor. DCA airport
  • If your dates flex, November (84.1% on-time) beats August (73.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 79.4% 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.