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State · MD · 2020–2025 BTS data

Maryland

According to the U.S. DOT Bureau of Transportation Statistics, flights at Maryland's 2 airports run behind the national average on reliability, across 1,051,812 flight operations. Its busiest airport is Baltimore, MD (BWI).

Data updated 2026-06-13

78%
On-time
-1 pts
vs US avg
61 min
Delay when late
1.25%
Cancelled
Maryland - all airports - flight delay tier distribution Stacked horizontal bar showing what percent of Maryland - all airports flights fell into each Bureau of Transportation Statistics delay tier: on-time (under 15 minutes late), delayed (15-60 minutes), heavily delayed (60-120 minutes), severe (120+ minutes), and cancelled. Maryland - all airports Flight delay tiers · BTS On-Time Performance methodology 78.0% 22.0% 0% 100% On time <15m · 78.0% Delayed 15–60m · 22.0% Cancelled cnx · 1.3%
Tiers follow Bureau of Transportation Statistics On-Time Performance definitions, a flight is on-time if it arrives less than 15 minutes after schedule.

Key Performance Metrics

Airports

2

Total Flights

1,051,812

Best Airport

BWI 78%

Busiest Airport

BWI 1,049,006

Cancelled

13,193

Airports in Maryland

Maryland airports ranked by on-time rate

2 BTS-tracked airports, led by BWI at 78%

On-time rate by airport

%

What this shows Airports here range from 69.2% to 78% on-time.

Code Airport City Flights On-Time Avg Delay (when late)
BWI Baltimore, MD Baltimore 1,049,006 78% 61.0 min
HGR Hagerstown, MD Hagerstown 2,806 69.2% 78.7 min

Monthly Trends

Recent 24 months of statewide flight data.

Period Departures Arrivals Dep Delayed Arr Delayed Cancelled
Dec 2025 7,885 7,885 2,504 1,823 100
Nov 2025 7,740 7,741 1,546 1,197 139
Oct 2025 8,505 8,509 2,011 1,454 12
Sep 2025 7,986 7,983 1,418 1,085 14
Aug 2025 8,420 8,420 2,099 1,731 64
Jul 2025 8,967 8,968 3,300 2,685 327
Jun 2025 8,703 8,706 3,015 2,404 118
May 2025 8,432 8,433 2,458 1,859 42
Apr 2025 8,124 8,130 1,731 1,403 25
Mar 2025 7,950 7,949 1,794 1,312 96
Feb 2025 6,590 6,587 1,316 983 49
Jan 2025 7,114 7,112 1,348 967 312
Dec 2024 7,930 7,929 2,137 1,400 25
Nov 2024 7,818 7,816 1,283 880 10
Oct 2024 8,430 8,432 1,609 1,103 123
Sep 2024 8,292 8,291 1,621 1,104 47
Aug 2024 8,974 8,980 3,149 2,231 233
Jul 2024 9,114 9,111 3,958 2,805 150
Jun 2024 8,815 8,814 3,085 2,034 93
May 2024 8,675 8,676 3,031 2,108 52
Apr 2024 8,247 8,252 2,204 1,456 54
Mar 2024 8,094 8,088 2,402 1,573 57
Feb 2024 6,911 6,912 1,193 912 18
Jan 2024 7,568 7,569 2,299 1,630 274

What the Data Says About Flying in Maryland

Maryland (MD) has 2 airports tracked in the Bureau of Transportation Statistics on-time performance dataset, which together handled 1,051,812 flights. Across those flights, the statewide on-time rate comes in at 78%, with 13,193 cancellations producing a 1.25% cancellation rate. The average delay when a flight runs late is 61.1 minutes. Together these numbers are the most useful summary of what air travel through Maryland airports looks like in aggregate, and they provide the baseline for comparing individual airports against each other and against national averages.

The busiest airport in Maryland is Baltimore, MD (BWI) in Baltimore, which handled 1,049,006 flights at a 78% on-time rate and an average delay of 61.0 minutes. That airport is also the most reliable in the state with a 78% on-time rate. Performance can differ sharply between a state's biggest hub and its smaller airports, so airport-level pages are the right place to dig into specifics.

Why the spread? Delays in Maryland - as everywhere in the BTS dataset, break down into five categories: late-arriving aircraft, carrier issues like maintenance and crew, National Aviation System constraints such as air traffic control and airspace congestion, weather, and security. The relative mix changes by airport and season: a small regional airport may see weather dominate, while a major hub tends to lean on late-aircraft and NAS delays. For travelers choosing flights through Maryland, the combination of a 78% statewide on-time rate, 61.1-minute average delay when late, and 1.25% cancellation rate is the concrete benchmark to weigh against specific airports and carriers.

Frequently Asked Questions

How many airports are in Maryland?
Maryland has 2 airports tracked by the Bureau of Transportation Statistics. The busiest is Baltimore, MD (BWI) with 1,049,006 flights.
What is the on-time flight performance in Maryland?
Flights in Maryland have an overall on-time rate of 78% across 1,051,812 total flights. When a flight is delayed, the average delay is 61.1 minutes.
Which airport in Maryland has the best on-time record?
Baltimore, MD (BWI) has the highest on-time rate in Maryland at 78% across 1,049,006 flights.
What is the cancellation rate in Maryland?
Maryland has a cancellation rate of 1.25%, based on 13,193 cancelled flights out of 1,051,812 total flights.
What causes flight delays in Maryland?
Flight delays in Maryland are caused by late-arriving aircraft, carrier issues (maintenance, crew), National Aviation System constraints (air traffic control, airspace), weather, and security. The specific mix varies by airport and season.

Explore PlainFlights

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Using Maryland's data

A state-level average blends every airport in it; check the specific airport you're flying.

  • Baltimore, MD (BWI) is the most reliable airport in Maryland among those with meaningful traffic. BWI profile
  • Baltimore, MD handles the most traffic in the state; its performance weighs heavily on the state average. BWI profile
  • See how Maryland compares with every other state that has BTS-tracked airports. All states

State averages are flight-weighted across all reporting airports in the state; a single busy airport can dominate the figure.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates every in-state airport's on-time performance and a 24-month delay trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.