PlainFlights

MDW vs BUF - 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
MDW

Chicago, IL

Chicago, Illinois

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Airport B
BUF

Buffalo, NY

Buffalo, New York

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Key Performance Metrics

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

Metric MDW BUF
On-Time Rate (higher is better) 78.4% 80.6%
Avg Delay (lower is better) 59.1 min 75.7 min
Delay Rate (lower is better) 21.6% 19.4%
Cancellation Rate (lower is better) 1.46% 1.75%
Total Flights 880,912 221,909
Delayed Flights 190,033 42,968
Cancelled Flights 12,896 3,878
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

MDW - Chicago, IL

Late Aircraft 41.8%
Carrier 38.5%
NAS 16.2%
Weather 3.3%
Security 0.2%

BUF - Buffalo, NY

Late Aircraft 42.0%
Carrier 30.5%
NAS 22.9%
Weather 4.5%
Security 0.1%

Top Routes

Top routes from MDW

Route Flights On-Time
ATL → MDW
Chicago
19,666 81.1%
MDW → ATL
Atlanta
19,604 82.3%
MDW → DEN
Denver
17,682 79.2%
DEN → MDW
Chicago
17,568 76.2%
MCO → MDW
Chicago
17,024 77.2%
MDW → LAS
Las Vegas
16,984 77.2%

Top routes from BUF

Route Flights On-Time
JFK → BUF
Buffalo
13,155 78.5%
BUF → JFK
New York
13,149 82.1%
BUF → ORD
Chicago
9,831 81.5%
ORD → BUF
Buffalo
9,803 79%
BUF → BWI
Baltimore
9,345 87.7%
BWI → BUF
Buffalo
9,340 74.6%

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.