PlainFlights

PWM vs LGA - 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
PWM

Portland, ME

Portland, Maine

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Airport B
LGA

New York, NY

New York, New York

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Key Performance Metrics

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

Metric PWM LGA
On-Time Rate (higher is better) 82.2% 81.2%
Avg Delay (lower is better) 80.8 min 80.6 min
Delay Rate (lower is better) 17.8% 18.8%
Cancellation Rate (lower is better) 1.56% 1.80%
Total Flights 120,951 1,574,867
Delayed Flights 21,471 295,934
Cancelled Flights 1,886 28,401
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

PWM - Portland, ME

Late Aircraft 36.0%
Carrier 34.9%
NAS 22.6%
Weather 6.5%
Security 0.1%

LGA - New York, NY

Late Aircraft 41.0%
Carrier 30.2%
NAS 23.9%
Weather 4.7%
Security 0.1%

Top Routes

Top routes from PWM

Route Flights On-Time
PWM → BWI
Baltimore
7,230 82.7%
BWI → PWM
Portland
7,227 75.9%
PWM → LGA
New York
6,808 83.8%
LGA → PWM
Portland
6,805 83.1%
PWM → DCA
Washington
6,201 80.2%
DCA → PWM
Portland
6,198 78.5%

Top routes from LGA

Route Flights On-Time
ORD → LGA
New York
56,539 78.2%
LGA → ORD
Chicago
56,521 80.8%
ATL → LGA
New York
42,079 80.8%
LGA → ATL
Atlanta
42,078 82.2%
LGA → BOS
Boston
39,006 82.4%
BOS → LGA
New York
38,931 83.4%

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.