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Airport · ILG · Wilmington, Delaware

Wilmington, DE

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Wilmington, DE (ILG) ranks #380 of 382 tracked US airports by total flights (most flights = #1). Wilmington, DE posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as a smaller regional airport.

Data updated 2026-06-13

69.1%
On-time
Top 99%
on-time, US airports
70 min
Delay when late
2.12%
Cancelled
#380 of 382
Corpus placement
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ILG on-time rate vs. the national average

Behind the U.S. average across all 382 tracked airports.

0%100%U.S. average79%69.1%

Delay Cause Breakdown

Top delay cause: NAS. Total delay minutes: 4,416.

Late Aircraft 39.2% (1,729 min)
Carrier 20.6% (909 min)
NAS (National Aviation System) 40.3% (1,778 min)
Weather 0.0% (0 min)
Security 0.0% (0 min)

ILG - seasonal on-time pattern

Best: May (95%) · worst: December (72.2%)

70%80%90%100% JanFebMarAprMayJunJulAugSepOctNovDec 72.2%

ILG - on-time rate by year

2021–2022, year-over-year trend.

76%78%80%82%84%86% 20212022 84.3% 77.7% ▼ -7.8%

ILG - taxi-out and taxi-in (monthly)

Average taxi-out 11.9 min · taxi-in 9.8 min over the last 17 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

0 min5 min10 min15 min20 min25 min Feb 21Jun 22 7.9 min 5 min ▼ -36.7%

ILG's average taxi-out (11.9 min) stays shorter than the recent U.S. airport mean (~16.4 min). Even the heaviest month (July 2021, 19.3 min) is milder than many hubs' typical book.

Cancellation & Diversion Analysis

Flight disruption statistics for Wilmington, DE.

Cancellation Rate

2.12%

7 of 330 flights

Diversion Rate

0.00%

0 of 330 flights

Delay Rate

30.9%

102 of 330 flights

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for Wilmington, DE, both outside Delaware so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 69.1%).

Hagerstown, MD

Hagerstown, MD

69.2% on-time 2,806 flights

Ashland, WV

Ashland, WV

69.5% on-time 5,649 flights

Aguadilla, PR

Aguadilla, PR

68.6% on-time 24,390 flights

Concord, NC

Concord, NC

72.4% on-time 10,857 flights

ILG delay-share reading

The standout signal at Wilmington, DE is traffic scale: 330 BTS flights (2021–2022) place it #380 of 382 by book size. That quiet-book footprint sits beside a 69.1% on-time rate (9.9 pts below the 79% national flight-weighted average), 102 delayed departures, and 7 cancellations (2.12% of the book).

Delay minutes concentrate in NAS (39.2% late-aircraft, 20.6% carrier, 40.3% NAS, 0.0% weather, 0.0% security). As a quieter airport, a single late inbound can swing the month more than at a mega-hub.

On the multi-year calendar, ILG is strongest in May (95% on-time) and weakest in December (72.2%), a 22.8-point swing. Volume peaks in April (~27 flights/month). Field definitions: on-time performance explained.

Statewide aggregates for Delaware: Delaware flight data.

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2021–2022). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using ILG's data

ILG's on-time book sits in the slower half of the BTS set; check the delay mix and the worst month before treating the headline as typical.

  • Compare ILG against airports with a similar on-time rate. Compare airports
  • Travel in May rather than December if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 11.9 min here; check the monthly series before a tight connection. Taxi times

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

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

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. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.