PlainFlights

IAD vs EYW - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
IAD

Washington, DC

Washington, Virginia

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Airport B
EYW

Key West, FL

Key West, Florida

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric IAD EYW
On-Time Rate (higher is better) 84.1% 79.0%
Avg Delay (lower is better) 81.3 min 78.0 min
Delay Rate (lower is better) 15.9% 21.0%
Cancellation Rate (lower is better) 1.05% 1.37%
Total Flights 618,145 93,161
Delayed Flights 98,139 19,574
Cancelled Flights 6,473 1,275
Top Delay Cause Carrier Late Aircraft

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

IAD - Washington, DC

Carrier 37.9%
Late Aircraft 30.2%
NAS 22.4%
Weather 9.5%
Security 0.1%

EYW - Key West, FL

Late Aircraft 47.1%
Carrier 29.5%
NAS 16.0%
Weather 7.2%
Security 0.2%

Top Routes

Top routes from IAD

Route Flights On-Time
IAD → ATL
Atlanta
20,387 84.2%
ATL → IAD
Washington
20,375 84%
DEN → IAD
Washington
17,394 79.1%
IAD → DEN
Denver
17,372 83.1%
CLT → IAD
Washington
13,324 83.6%
IAD → CLT
Charlotte
13,287 83.5%

Top routes from EYW

Route Flights On-Time
ATL → EYW
Key West
9,312 83.9%
EYW → ATL
Atlanta
9,309 83.7%
CLT → EYW
Key West
7,711 79.4%
EYW → CLT
Charlotte
7,705 77.1%
EYW → MIA
Miami
7,150 81.5%
MIA → EYW
Key West
7,149 85.7%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.