PlainFlights

RDU vs ORD - 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
RDU

Raleigh/Durham, NC

Raleigh/Durham, North Carolina

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Airport B
ORD

Chicago, IL

Chicago, Illinois

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Key Performance Metrics

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

Metric RDU ORD
On-Time Rate (higher is better) 81.6% 81.0%
Avg Delay (lower is better) 77.6 min 81.9 min
Delay Rate (lower is better) 18.4% 19.0%
Cancellation Rate (lower is better) 1.18% 1.16%
Total Flights 616,332 3,114,086
Delayed Flights 113,435 592,111
Cancelled Flights 7,264 36,132
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

RDU - Raleigh/Durham, NC

Late Aircraft 41.9%
Carrier 30.4%
NAS 23.9%
Weather 3.8%
Security 0.1%

ORD - Chicago, IL

Late Aircraft 39.2%
Carrier 33.6%
NAS 19.5%
Weather 7.7%
Security 0.1%

Top Routes

Top routes from RDU

Route Flights On-Time
ATL → RDU
Raleigh/Durham
25,309 83.4%
RDU → ATL
Atlanta
25,294 87.4%
LGA → RDU
Raleigh/Durham
19,534 81.3%
RDU → LGA
New York
19,530 79.6%
RDU → JFK
New York
19,088 79.9%
JFK → RDU
Raleigh/Durham
19,083 80.6%

Top routes from ORD

Route Flights On-Time
ORD → LGA
New York
56,539 78.2%
LGA → ORD
Chicago
56,521 80.8%
ORD → LAX
Los Angeles
37,020 79.8%
LAX → ORD
Chicago
36,987 84.3%
ORD → DEN
Denver
35,971 79.3%
DEN → ORD
Chicago
35,925 76.8%

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.