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Route on-time record

ILM to BOS: most on-time flights and the best time to fly

Wilmington (Wilmington International Airport) to Boston (Boston Logan International Airport). 445 nonstop flights in Jun 2025 to May 2026, 68% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Republic 4728 at 12:37 PM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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ILM → BOS

Wilmington to Boston: 445 nonstop flights a year

On time (12 months)

68%

Cancelled

1.1%

avg delay 23 min

Best time to leave

9 AM to noon

83% on time vs 63% noon to 3 PM

Most reliable airline

Republic

73% chance on time

Check ILM to BOS fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · Republic 4728 · sold as American Eagle, Delta Connection or United Express

    12:37 PM → 2:46 PM2h 09m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    72%

    chance on time

    On time (history)
    70%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 70% of the time (44 flights, Jun 2025 to May 2026).
    • Never cancelled in 44 scheduled flights.
    • Leaves in this route's least on-time window (Noon to 3 PM: 63% on time; 9 AM to noon: 83%).
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.

    Limited track record · 44 flights

    Find 12:37 PM flight fares Opens this date on Aviasales

  2. #2 · JetBlue 1290

    2:35 PM → 4:44 PM2h 09m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    69%

    chance on time

    On time (history)
    71%
    Cancelled
    1.1%
    Avg arrival delay
    21 min
    • Arrived on time 71% of the time (178 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Noon to 3 PM: 63% on time; 9 AM to noon: 83%).
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 178 flights

    Find JetBlue 1290 fares Opens this date on Aviasales

  3. #3 · Republic 4738 · sold as American Eagle, Delta Connection or United Express

    2:50 PM → 5:02 PM2h 12m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    68%

    chance on time

    On time (history)
    56%
    Cancelled
    0.0%
    Avg arrival delay
    29 min
    • Arrived on time 56% of the time (9 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (Noon to 3 PM: 63% on time; 9 AM to noon: 83%).
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.

    Limited track record · 9 flights

    Find 2:50 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)73%

    111 flights · 76% on time as flown · 0.6% cancel

  • JetBlue69%

    180 flights · 71% on time as flown · 1.1% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon83%

    124 flights · avg delay 13 min

  • Noon to 3 PM63%

    317 flights · avg delay 27 min

Best day: Saturday (77%). Worst: Friday (59%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
-
F
-
M
-
A
80
M
66
J
66
J
68
A
77
S
66
O
66
N
-
D
-

What delays this route

  • Air traffic control and airport volume54%
  • Late-arriving aircraft25%
  • Airline (crew, maintenance, boarding)12%
  • Severe weather10%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

Finding the most reliable connections from ILM to BOS…

ILM to BOS questions

What time of day is best to fly ILM to BOS?
9 AM to noon: 83% of flights arrived on time, against 63% for departures noon to 3 PM.
Which airline is most on time from ILM to BOS?
Republic, with a season-adjusted 73% chance of operating and arriving on time over 111 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on ILM to BOS?
June (66% on time); the best was April (80%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from ILM

Live status: FAA delays and ground stops