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IAD vs BTV - 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
BTV

Burlington, VT

Burlington, Vermont

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Key Performance Metrics

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

Metric IAD BTV
On-Time Rate (higher is better) 84.1% 83.4%
Avg Delay (lower is better) 81.3 min 88.9 min
Delay Rate (lower is better) 15.9% 16.6%
Cancellation Rate (lower is better) 1.05% 1.65%
Total Flights 618,145 79,685
Delayed Flights 98,139 13,216
Cancelled Flights 6,473 1,313
Top Delay Cause Carrier Carrier

✓ / ▲ 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%

BTV - Burlington, VT

Carrier 35.0%
Late Aircraft 32.7%
NAS 21.7%
Weather 10.5%
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 BTV

Route Flights On-Time
BTV → DCA
Washington
5,806 77.4%
DCA → BTV
Burlington
5,775 80.7%
JFK → BTV
Burlington
5,079 80.3%
BTV → JFK
New York
5,048 84.9%
ORD → BTV
Burlington
4,848 78.4%
BTV → ORD
Chicago
4,842 79.6%

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.