Route · MIA → IAD · 2020–2025 BTS data
Miami to Washington
The MIA–IAD corridor (Miami, FL → Washington, DC) runs ahead of the national average, served by 8 carriers across roughly 921 miles.
Data updated 2026-06-13
- 83.2%
- On-time
- +4.2 pts
- vs US avg
- 95 min
- Delay when late
- 3,061
- Flights
Cancelled
1.0%
Best Month
Nov 2024 98%
Worst Month
Jun 2025 60%
Distance
921 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 58 | 7 | 0 | 0 | F9,UA |
| Nov 2025 | 44 | 12 | 0 | 0 | UA,F9 |
| Oct 2025 | 49 | 7 | 0 | 0 | UA,F9 |
| Sep 2025 | 47 | 3 | 0 | 0 | UA,F9 |
| Aug 2025 | 53 | 17 | 0 | 0 | F9,UA |
| Jul 2025 | 52 | 18 | 2 | 0 | UA,F9 |
| Jun 2025 | 52 | 21 | 0 | 0 | UA,F9 |
| May 2025 | 41 | 6 | 0 | 0 | UA,F9 |
| Apr 2025 | 30 | 2 | 0 | 0 | UA |
| Mar 2025 | 61 | 9 | 0 | 0 | UA |
| Feb 2025 | 52 | 8 | 1 | 0 | UA |
| Jan 2025 | 54 | 11 | 1 | 0 | UA |
| Dec 2024 | 62 | 12 | 0 | 1 | UA |
| Nov 2024 | 60 | 1 | 0 | 0 | UA |
| Oct 2024 | 36 | 1 | 0 | 0 | UA |
| Sep 2024 | 30 | 1 | 0 | 0 | UA |
| Aug 2024 | 31 | 11 | 0 | 2 | UA |
| Jul 2024 | 31 | 9 | 0 | 0 | UA |
| Jun 2024 | 30 | 7 | 2 | 0 | UA |
| May 2024 | 54 | 3 | 0 | 0 | UA |
| Apr 2024 | 60 | 12 | 1 | 0 | UA |
| Mar 2024 | 62 | 17 | 0 | 0 | UA |
| Feb 2024 | 58 | 12 | 0 | 0 | UA |
| Jan 2024 | 62 | 12 | 5 | 0 | UA |
Cancellation Rate
1.0%
12 of 1,169 flights
Diversion Rate
0.3%
3 of 1,169 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.
Origin airport →IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See MIA and IAD side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MIA–IAD.
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What the Data Says About MIA to IAD
Bureau of Transportation Statistics records show Miami to Washington (MIA to IAD) running a 83.2% on-time rate over 3,061 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 95.3 minutes. The 921-mile corridor is served by 8 carriers, and over the last 24 months 1.0% of 1,169 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: Nov 2024 posted the strongest performance at 98% on-time, while Jun 2025 came in at just 60% - a 39-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.