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Route · MIA → DCA · 2020–2025 BTS data

Miami to Washington

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MIA to DCA (Miami to Washington) ranks #383 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

77.5%
On-time
-1.5 pts
vs US avg
71 min
Delay when late
18,953
Flights
#383 of 4927
Corpus placement

Cancelled

2.0%

Best Month

Nov 2024 85%

Worst Month

Jul 2025 62%

Distance

919 mi

Carriers

13

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 344 81 1 0 DL,YX,AA
Nov 2025 310 75 5 3 AA,DL,YX
Oct 2025 337 69 1 2 AA,YX,DL,MQ
Sep 2025 326 66 2 0 DL,YX,AA
Aug 2025 336 89 2 0 AA,YX,DL
Jul 2025 334 126 26 5 AA,YX,DL
Jun 2025 326 89 10 4 AA,YX,DL
May 2025 339 91 7 4 AA,DL
Apr 2025 325 84 2 2 DL,AA
Mar 2025 372 95 6 1 AA,YX,DL
Feb 2025 334 73 5 5 AA,YX,DL
Jan 2025 368 67 20 1 AA,YX,DL
Dec 2024 353 68 1 1 AA,DL,YX
Nov 2024 339 52 0 1 YX,DL,AA
Oct 2024 326 54 5 0 DL,YX,AA
Sep 2024 295 55 1 1 AA,DL
Aug 2024 330 124 16 1 AA,DL,YX
Jul 2024 316 104 7 4 AA,DL
Jun 2024 300 98 19 3 AA,DL,YX
May 2024 332 117 3 1 AA,DL,YX
Apr 2024 325 82 2 0 AA,DL,YX
Mar 2024 341 93 12 0 AA,DL,YX
Feb 2024 317 79 1 1 AA,DL,YX
Jan 2024 338 104 7 4 AA,DL,MQ,YX

MIA–DCA seasonal on-time pattern

Best: October (82.9%) · weakest: July (69.4%)

65%70%75%80%85% JanFebMarAprMayJunJulAugSepOctNovDec 80.8%

Strongest calendar month

October

82.9% on-time · ~256 flights/mo

Busiest calendar month

December

~291 flights/mo avg

Weakest calendar month

July

69.4% on-time · ~268 flights/mo

Cancellation Rate

2.0%

161 of 7,963 flights

Diversion Rate

0.6%

44 of 7,963 flights

Explore origin & destination

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

MIA - Miami

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

MIA on-time profile

DCA - Washington

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

DCA on-time profile

Compare the two airports

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

Compare MIA vs DCA

Origin-hub reliability standing

Mid-pack among MIA departures

From MIA, this corridor sits with 37 other 75–85% on-time routes out of 63 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 25 below 75%). Destination: Washington · fleet on-time rank #3971 of 4927.

What the Data Says About MIA to DCA

The Miami to Washington corridor (MIA to DCA) posts a 77.5% on-time rate on the lower edge of the average band, based on 18,953 tracked flights. Late flights run 71.3 minutes behind on average. 13 carriers cover the 919-mile route; over the last 24 months, 161 of 7,963 flights were cancelled (2.0%) and 0.6% diverted.

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 85% on-time, while Jul 2025 came in at just 62% - a 22-point swing worth factoring into travel timing.

On the multi-year calendar, MIA–DCA peaks in October at 82.9% on-time while December carries the heaviest traffic (~291 flights per month) ; the softest month is July at 69.4%, a 13.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does MIA to DCA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, MIA to DCA ranks #383 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 MIA to DCA? ▼
Flights from Miami to Washington have a 77.5% on-time rate based on 18,953 flights. The average delay is 71.3 minutes. The best recent month was Nov 2024 with 85% on-time.
What is the cancellation rate for MIA to DCA? ▼
Over the last 24 months, 2.0% of flights on this route were cancelled (161 of 7,963 flights) and 0.6% were diverted.
How far is the flight from MIA to DCA? ▼
The flight distance from Miami (MIA) to Washington (DCA) is approximately 919 miles. This route is served by 13 carriers.
When is the best time to fly from MIA to DCA? ▼
The best recent month for on-time performance was Nov 2024 (85% on-time). The worst was Jul 2025 (62% on-time). Consider booking during months with historically better performance.

Airports on this route

MIA Airport

Miami
DCA Airport

Washington
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 MIA–DCA data

MIA–DCA is mid-pack at 77.5% on-time; month and carrier mix move more than the corridor headline.

  • Compare MIA and DCA airport profiles: delay causes and top routes differ even on the same corridor. MIA airport
  • If your dates flex, October (82.9% on-time) beats July (69.4%) on this corridor. Seasonal chart
  • 4 other routes post a similar 77.5% 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.