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Route · BOS → ILM · 2020–2025 BTS data

Boston to Wilmington

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BOS to ILM (Boston to Wilmington) ranks #4535 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

86.4%
On-time
+7.4 pts
vs US avg
62 min
Delay when late
965
Flights
#4535 of 4927
Corpus placement

Cancelled

0.7%

Best Month

Jun 2025 93%

Worst Month

Oct 2025 81%

Distance

672 mi

Carriers

7

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Oct 2025 64 12 0 0 B6,YX,MQ
Sep 2025 69 9 0 0 MQ,YX,B6
Aug 2025 71 7 0 0 YX,MQ,B6
Jul 2025 73 7 1 0 B6,YX,MQ
Jun 2025 70 5 0 0 B6,YX,MQ
May 2025 71 9 1 0 B6,YX,MQ
Apr 2025 32 2 0 0 MQ,YX,B6
Oct 2024 31 2 0 0 MQ
Sep 2024 31 6 0 0 YX,MQ
Aug 2024 40 7 1 0 MQ,YX
Jul 2024 40 6 0 0 MQ,YX
Jun 2024 36 8 1 0 MQ,YX
Oct 2023 31 2 0 0 MQ,YX
Sep 2023 32 3 2 0 MQ,YX
Aug 2023 39 11 0 0 MQ,YX
Jul 2023 44 14 0 0 MQ,YX
Jun 2023 38 11 0 0 MQ,YX
Oct 2022 31 2 0 0 YX
Aug 2022 30 3 0 0 MQ,YX
Jul 2022 31 2 1 0 MQ
Jun 2022 30 2 0 0 MQ
May 2022 31 1 0 0 MQ

BOS–ILM seasonal on-time pattern

Best: April (93.8%) · weakest: August (84.4%)

80%85%90%95% AprMayJunJulAugSepOct 88.5%

Strongest calendar month

April

93.8% on-time · ~32 flights/mo

Busiest calendar month

May

~51 flights/mo avg

Weakest calendar month

August

84.4% on-time · ~45 flights/mo

Cancellation Rate

0.7%

7 of 965 flights

Diversion Rate

0.0%

0 of 965 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

BOS - Boston

Full on-time, delay-cause, and seasonal performance for Boston, MA.

BOS on-time profile

ILM - Wilmington

Full on-time, delay-cause, and seasonal performance for Wilmington, NC.

ILM on-time profile

Compare the two airports

See BOS and ILM side by side on delays, cancellations, and reliability.

Compare BOS vs ILM

Origin-hub reliability standing

Among BOS's stronger departures

BOS → ILM posts a 86.4% on-time rate, landing in the ≥85% band with 6 of 60 BTS-tracked routes leaving Boston. The same hub also shows 49 mid-band and 5 challenged departures · fleet-wide on-time rank #784 of 4927 (highest on-time = #1).

What the Data Says About BOS to ILM

Boston to Wilmington (BOS to ILM) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.4% on-time rate across 965 flights, with delays that do happen averaging 61.6 minutes. The corridor runs roughly 672 miles and is served by 7 carriers. Over the most recent 24 months, 7 of 965 flights were cancelled (0.7%) and 0 diverted (0.0%).

Monthly performance varies moderately here: Jun 2025 was the strongest month at 93% on-time versus Oct 2025 at 81%, a 12-point difference.

On the multi-year calendar, BOS–ILM peaks in April at 93.8% on-time while May carries the heaviest traffic (~51 flights per month) ; the softest month is August at 84.4%, a 9.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BOS to ILM rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, BOS to ILM ranks #4535 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from BOS to ILM? ▼
Flights from Boston to Wilmington have a 86.4% on-time rate based on 965 flights. The average delay is 61.6 minutes. The best recent month was Jun 2025 with 93% on-time.
What is the cancellation rate for BOS to ILM? ▼
Over the last 24 months, 0.7% of flights on this route were cancelled (7 of 965 flights) and 0.0% were diverted.
How far is the flight from BOS to ILM? ▼
The flight distance from Boston (BOS) to Wilmington (ILM) is approximately 672 miles. This route is served by 7 carriers.
When is the best time to fly from BOS to ILM? ▼
The best recent month for on-time performance was Jun 2025 (93% on-time). The worst was Oct 2025 (81% on-time). Consider booking during months with historically better performance.

Airports on this route

BOS Airport

Boston
ILM Airport

Wilmington
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

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

Using BOS–ILM data

BOS–ILM runs 7.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare BOS and ILM airport profiles: delay causes and top routes differ even on the same corridor. BOS airport
  • If your dates flex, April (93.8% on-time) beats August (84.4%) on this corridor. Seasonal chart
  • 4 other routes post a similar 86.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

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

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