Route on-time record

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

Indianapolis (Indianapolis International Airport) to Philadelphia (Philadelphia International Airport). 1,527 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 2.6% were cancelled. The most reliable flight number was Republic 4613 at 5:33 AM.

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

IND → PHL

Indianapolis to Philadelphia: 1,527 nonstop flights a year

On time (12 months)

79%

Cancelled

2.6%

avg delay 21 min

Best time to leave

Before 9 AM

92% on time vs 65% 3 to 6 PM

Most reliable airline

Republic

87% chance on time

Check IND to PHL fares

Lowest nonstop fare seen in the next two months: $509 (American 3015 on 2026-10-25). 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 · Republic 4613 · sold as American Eagle, Delta Connection or United Express
5:33 AM → 7:29 AM1h 56m nonstop
Local times, typical schedule. Last flown 2026-05-31.
95%
chance on time
On time (history)
96%
Cancelled
0.6%
Avg arrival delay
2 min
- Arrived on time 96% of the time (157 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 3 to 6 PM: 65%).
Moderate track record · 157 flights
Find 5:33 AM flight fares Opens this date on Aviasales
#2 · Republic 4463 · sold as American Eagle, Delta Connection or United Express
6:05 AM → 8:03 AM1h 58m nonstop
Local times, typical schedule. Last flown 2026-05-20.
93%
chance on time
On time (history)
96%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 96% of the time (48 flights, Jun 2025 to May 2026).
- Never cancelled in 48 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 3 to 6 PM: 65%).
- Short track record (48 flights), so its score leans on the airline's record at this hour.
Limited track record · 48 flights
Find 6:05 AM flight fares Opens this date on Aviasales
#3 · Republic 4416 · sold as American Eagle, Delta Connection or United Express
5:15 AM → 7:11 AM1h 56m nonstop
Local times, typical schedule. Last flown 2026-04-06.
91%
chance on time
On time (history)
93%
Cancelled
1.4%
Avg arrival delay
3 min
- Arrived on time 93% of the time (68 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 3 to 6 PM: 65%).
Moderate track record · 68 flights
Find 5:15 AM flight fares Opens this date on Aviasales
#4 · Republic 4489 · sold as American Eagle, Delta Connection or United Express
10:07 AM → 12:04 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-20.
88%
chance on time
On time (history)
91%
Cancelled
2.0%
Avg arrival delay
6 min
- Arrived on time 91% of the time (196 flights, Jun 2025 to May 2026).
Moderate track record · 196 flights
Find 10:07 AM flight fares Opens this date on Aviasales
#5 · American 3097
7:15 PM → 9:10 PM1h 54m nonstop
Local times, typical schedule. Last flown 2026-05-19.
77%
chance on time
On time (history)
86%
Cancelled
2.3%
Avg arrival delay
10 min
- Arrived on time 86% of the time (43 flights, Jun 2025 to May 2026).
- 92% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find American 3097 fares Opens this date on Aviasales
#6 · Republic 4643 · sold as American Eagle, Delta Connection or United Express
4:21 PM → 6:22 PM2h 01m nonstop
Local times, typical schedule. Last flown 2026-04-06.
75%
chance on time
On time (history)
79%
Cancelled
4.4%
Avg arrival delay
18 min
- Arrived on time 79% of the time (86 flights, Jun 2025 to May 2026).
- Cancelled 4.4% of the time (4 of 91).
- Leaves in this route's least on-time window (3 to 6 PM: 65% on time; Before 9 AM: 92%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 86 flights
Find 4:21 PM flight fares Opens this date on Aviasales
#7 · PSA 5285 · sold as American Eagle
3:54 PM → 5:51 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-19.
74%
chance on time
On time (history)
84%
Cancelled
2.3%
Avg arrival delay
13 min
- Arrived on time 84% of the time (43 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 65% on time; Before 9 AM: 92%).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- 65% of its delay minutes came from the plane arriving late from an earlier flight.
Limited track record · 43 flights
Find 3:54 PM flight fares Opens this date on Aviasales
#8 · American 2847
7:45 AM → 9:39 AM1h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
On time (history)
70%
Cancelled
0.0%
Avg arrival delay
154 min
- Arrived on time 70% of the time (10 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 92% on time; 3 to 6 PM: 65%).
- Short track record (10 flights), so its score leans on the airline's record at this hour.
Limited track record · 10 flights
Find American 2847 fares Opens this date on Aviasales
#9 · PSA 5240 · sold as American Eagle
1:21 PM → 3:17 PM1h 56m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
On time (history)
56%
Cancelled
0.0%
Avg arrival delay
21 min
- Arrived on time 56% of the time (9 flights, Jun 2025 to May 2026).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- 62% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find 1:21 PM flight fares Opens this date on Aviasales
#10 · American 869
2:03 PM → 3:56 PM1h 53m nonstop
Local times, typical schedule. Last flown 2026-05-20.
68%
chance on time
On time (history)
74%
Cancelled
2.3%
Avg arrival delay
13 min
- Arrived on time 74% of the time (42 flights, Jun 2025 to May 2026).
- Lands inside PHL's trouble window: 72% of its 95 ground stops and delay programs started between 2 PM and 8 PM.
- 81% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (42 flights), so its score leans on the airline's record at this hour.
Limited track record · 42 flights
Find American 869 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)87%
633 flights · 90% on time as flown · 1.8% cancel
PSA Airlines (sold as American Eagle)74%
251 flights · 77% on time as flown · 5.0% cancel
American Airlines70%
643 flights · 70% on time as flown · 2.3% cancel

On time by departure time

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

Before 9 AM92%
478 flights · avg delay 9 min
9 AM to noon83%
306 flights · avg delay 13 min
Noon to 3 PM77%
216 flights · avg delay 23 min
3 to 6 PM65%
323 flights · avg delay 32 min
6 to 9 PM68%
204 flights · avg delay 42 min

Best day: Wednesday (86%). Worst: Friday (79%).

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.

What delays this route

Late-arriving aircraft49%
Airline (crew, maintenance, boarding)33%
Air traffic control and airport volume17%
Severe weather2%

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 PHL questions

What time of day is best to fly IND to PHL?: Before 9 AM: 92% of flights arrived on time, against 65% 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 PHL?: Republic, with a season-adjusted 87% chance of operating and arriving on time over 633 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 PHL?: July (73% on time); the best was February (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

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