PlainFlights

IAD vs FLL - 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
FLL

Fort Lauderdale, FL

Fort Lauderdale, Florida

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Key Performance Metrics

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

Metric IAD FLL
On-Time Rate (higher is better) 84.1% 76.4%
Avg Delay (lower is better) 81.3 min 74.0 min
Delay Rate (lower is better) 15.9% 23.6%
Cancellation Rate (lower is better) 1.05% 1.19%
Total Flights 618,145 1,010,982
Delayed Flights 98,139 238,106
Cancelled Flights 6,473 11,984
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%

FLL - Fort Lauderdale, FL

Late Aircraft 36.0%
Carrier 33.3%
NAS 24.2%
Weather 5.2%
Security 1.2%

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 FLL

Route Flights On-Time
FLL → ATL
Atlanta
42,458 77.5%
ATL → FLL
Fort Lauderdale
42,441 77.2%
EWR → FLL
Fort Lauderdale
29,146 75.3%
FLL → EWR
Newark
29,136 74%
FLL → LGA
New York
24,199 75.8%
LGA → FLL
Fort Lauderdale
24,183 74.5%

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.