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Route on-time record

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

Indianapolis (Indianapolis International Airport) to Boston (Boston Logan International Airport). 2,014 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 2.6% were cancelled. The most reliable flight number was Republic 5631 at 6:00 AM.

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

IND → BOS

Indianapolis to Boston: 2,014 nonstop flights a year

On time (12 months)

77%

Cancelled

2.6%

avg delay 16 min

Best time to leave

Before 9 AM

91% on time vs 63% 3 to 6 PM

Most reliable airline

Envoy

76% chance on time

Check IND 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 5631 · sold as American Eagle, Delta Connection or United Express

    6:00 AM → 8:20 AM2h 23m nonstop

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

    91%

    chance on time

    On time (history)
    93%
    Cancelled
    1.6%
    Avg arrival delay
    4 min
    • Arrived on time 93% of the time (358 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 63%).

    Strong track record · 358 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  2. #2 · Republic 5858 · sold as American Eagle, Delta Connection or United Express

    11:25 AM → 1:50 PM2h 25m nonstop

    Local times, typical schedule. Last flown 2026-05-06.

    88%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    0 min
    • Arrived on time 100% of the time (21 flights, Jun 2025 to May 2026).
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
    • Short track record (21 flights), so its score leans on the airline's record at this hour.

    Limited track record · 21 flights

    Find 11:25 AM flight fares Opens this date on Aviasales

  3. #3 · Republic 5628 · sold as American Eagle, Delta Connection or United Express

    11:00 AM → 1:23 PM2h 23m nonstop

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

    85%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 90% of the time (49 flights, Jun 2025 to May 2026).
    • Never cancelled in 49 scheduled flights.
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.
    • Short track record (49 flights), so its score leans on the airline's record at this hour.

    Limited track record · 49 flights

    Find 11:00 AM flight fares Opens this date on Aviasales

  4. #4 · Republic 4716 · sold as American Eagle, Delta Connection or United Express

    7:00 AM → 9:23 AM2h 23m nonstop

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

    85%

    chance on time

    On time (history)
    86%
    Cancelled
    1.1%
    Avg arrival delay
    11 min
    • Arrived on time 86% of the time (358 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 3 to 6 PM: 63%).

    Strong track record · 358 flights

    Find 7:00 AM flight fares Opens this date on Aviasales

  5. #5 · Republic 4727 · sold as American Eagle, Delta Connection or United Express

    11:52 AM → 2:15 PM2h 23m nonstop

    Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as Republic 5774; its record covers all of them.

    81%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 85% of the time (87 flights, Jun 2025 to May 2026).
    • Never cancelled in 87 scheduled flights.
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.

    Moderate track record · 87 flights

    Find 11:52 AM flight fares Opens this date on Aviasales

  6. #6 · Republic 4368 · sold as American Eagle, Delta Connection or United Express

    12:20 PM → 2:39 PM2h 19m nonstop

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

    66%

    chance on time

    On time (history)
    67%
    Cancelled
    3.7%
    Avg arrival delay
    20 min
    • Arrived on time 67% of the time (208 flights, Jun 2025 to May 2026).
    • Cancelled 3.7% of the time (8 of 216).
    • Lands inside BOS's trouble window: 79% of its 196 ground stops and delay programs started between noon and 6 PM.

    Strong track record · 208 flights

    Find 12:20 PM flight fares Opens this date on Aviasales

  7. #7 · Republic 4726 · sold as American Eagle, Delta Connection or United Express

    7:30 PM → 9:51 PM2h 21m nonstop

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

    63%

    chance on time

    On time (history)
    67%
    Cancelled
    6.0%
    Avg arrival delay
    29 min
    • Arrived on time 67% of the time (249 flights, Jun 2025 to May 2026).
    • Cancelled 6.0% of the time (16 of 265).
    • 55% of its delay minutes came from the plane arriving late from an earlier flight.

    Strong track record · 249 flights

    Find 7:30 PM flight fares Opens this date on Aviasales

  8. #8 · Republic 5747 · sold as American Eagle, Delta Connection or United Express

    5:50 PM → 8:15 PM2h 25m nonstop

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

    63%

    chance on time

    On time (history)
    70%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 70% of the time (20 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 63% on time; Before 9 AM: 91%).
    • Short track record (20 flights), so its score leans on the airline's record at this hour.

    Limited track record · 20 flights

    Find 5:50 PM flight fares Opens this date on Aviasales

  9. #9 · Republic 5851 · sold as American Eagle, Delta Connection or United Express

    5:14 PM → 7:40 PM2h 26m nonstop

    Local times, typical schedule. Last flown 2026-05-06. Same departure also flew as Republic 5809; its record covers all of them.

    62%

    chance on time

    On time (history)
    71%
    Cancelled
    1.9%
    Avg arrival delay
    21 min
    • Arrived on time 71% of the time (51 flights, Jun 2025 to May 2026).
    • Leaves in this route's least on-time window (3 to 6 PM: 63% on time; Before 9 AM: 91%).
    • Short track record (51 flights), so its score leans on the airline's record at this hour.

    Limited track record · 51 flights

    Find 5:14 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Envoy Air (sold as American Eagle)76%

    40 flights · 72% on time as flown · 2.6% cancel

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)75%

    1,954 flights · 77% on time as flown · 2.7% cancel

On time by departure time

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

  • Before 9 AM91%

    614 flights · avg delay 5 min

  • 9 AM to noon85%

    367 flights · avg delay 10 min

  • Noon to 3 PM69%

    368 flights · avg delay 20 min

  • 3 to 6 PM63%

    372 flights · avg delay 28 min

  • 6 to 9 PM66%

    273 flights · avg delay 29 min

Best day: Saturday (88%). Worst: Friday (78%).

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
84
F
85
M
85
A
86
M
79
J
82
J
76
A
80
S
74
O
83
N
89
D
79

What delays this route

  • Air traffic control and airport volume51%
  • Late-arriving aircraft28%
  • Airline (crew, maintenance, boarding)18%
  • Severe weather4%

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

IND to BOS questions

What time of day is best to fly IND to BOS?
Before 9 AM: 91% of flights arrived on time, against 63% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from IND to BOS?
Envoy, with a season-adjusted 76% chance of operating and arriving on time over 40 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 IND to BOS?
September (74% on time); the best was November (89%), 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 IND

Live status: FAA delays and ground stops