Route · EYW → IAD · 2020–2025 BTS data
Key West to Washington
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), EYW to IAD (Key West to Washington) ranks #4880 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 71.5%
- On-time
- -7.5 pts
- vs US avg
- 90 min
- Delay when late
- 526
- Flights
- #4880 of 4927
- Corpus placement
Cancelled
2.1%
Best Month
N/A
Worst Month
N/A
Distance
1,023 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Mar 2024 | 30 | 3 | 0 | 0 | UA |
| Jan 2024 | 31 | 6 | 1 | 0 | UA |
| May 2022 | 31 | 9 | 0 | 0 | YX |
| Apr 2022 | 30 | 11 | 2 | 0 | YX |
| Mar 2022 | 31 | 21 | 0 | 0 | YX |
| Jan 2022 | 34 | 10 | 3 | 8 | YV,YX |
| Dec 2021 | 46 | 6 | 0 | 1 | YV,YX |
| Nov 2021 | 30 | 4 | 0 | 1 | YX |
| Oct 2021 | 30 | 5 | 0 | 1 | YX |
| Sep 2021 | 30 | 7 | 0 | 0 | YV,YX |
| Aug 2021 | 31 | 15 | 1 | 3 | YV |
| Jul 2021 | 31 | 17 | 3 | 0 | YV |
| Jun 2021 | 30 | 12 | 0 | 1 | YV |
| May 2021 | 42 | 4 | 0 | 0 | YV,YX |
| Apr 2021 | 34 | 6 | 1 | 0 | YV,YX |
| Mar 2021 | 35 | 14 | 0 | 0 | YV,YX |
EYW–IAD seasonal on-time pattern
Best: December (87.0%) · weakest: July (45.2%)
Strongest calendar month
December
87.0% on-time · ~46 flights/mo
Busiest calendar month
December
~46 flights/mo avg
Weakest calendar month
July
45.2% on-time · ~31 flights/mo
Cancellation Rate
2.1%
11 of 526 flights
Diversion Rate
2.9%
15 of 526 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
EYW - Key West
Full on-time, delay-cause, and seasonal performance for Key West, FL.
EYW on-time profileIAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
IAD on-time profileCompare the two airports
See EYW and IAD side by side on delays, cancellations, and reliability.
Compare EYW vs IADOrigin-hub reliability standing
Softer reliability from EYW
Among 11 routes leaving EYW, only 6 (including this one) clear below 75% on-time, while 0 stay ≥85% and 5 sit mid-band. Travelers comparing EYW options should weigh this 71.5% print against those peers · fleet on-time rank #4783 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to EYW–IAD.
Routes with a similar on-time rate
What the Data Says About EYW to IAD
On-time performance on the EYW to IAD pairing (Key West to Washington) trails a chunk of the network: 71.5% of 526 tracked flights arrived on schedule, with a 90.4-minute average delay on the ones that ran late. The route spans about 1,023 miles across 4 carriers. Cancellations over the trailing 24 months hit 2.1% (11 of 526 flights), with 2.9% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, EYW–IAD peaks in December at 87.0% on-time ; the softest month is July at 45.2%, a 41.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does EYW to IAD rank among US routes by traffic? ▼
How often are flights delayed from EYW to IAD? ▼
What is the cancellation rate for EYW to IAD? ▼
How far is the flight from EYW to IAD? ▼
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.
Read our methodology - how this data is sourced, computed, and verified.
Using EYW–IAD data
EYW–IAD sits 7.5 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare EYW and IAD airport profiles: delay causes and top routes differ even on the same corridor. EYW airport
- If your dates flex, December (87.0% on-time) beats July (45.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 71.5% 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.
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.