Indianapolis (IND) to Philadelphia (PHL): On-Time Performance
Data through May 2026
The calendar drives reliability on IND–PHL. November 2024 flights landed on schedule 90% of the time, but July 2025 dropped to 68% — a gap of 23 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 64%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 4.2
- last 12 months
- Duration
- 1h 53m
- scheduled
- Distance
- 588 mi
Best airline from IND to PHL
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 88% | 8 min | 1.2% | 1,345 |
| PSA Airlines | 77% | 26 min | 4.4% | 477 |
| American Airlines | 72% | 27 min | 2.2% | 1,378 |
Monthly on-time trend
Best time to fly from IND to PHL
Aim for departures around 6 a.m. (93% on-time); avoid 6 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 20 min |
| Tuesday | 81% | 22 min |
| Wednesdaybest | 83% | 11 min |
| Thursday | 76% | 25 min |
| Friday | 77% | 16 min |
| Saturday | 81% | 13 min |
| Sunday | 79% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations31%
- National airspace system20%
- Weather3%
Frequently asked questions
- How often are flights from IND to PHL delayed?
- 21% of IND–PHL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from IND to PHL?
- Republic Airways has the best on-time record on this route at 88%, based on 1,345 flights. 3 airlines flew IND–PHL frequently enough to compare in this period.
- What is the best time of day to fly from IND to PHL?
- Departures around 6 a.m. have the best record (93% on-time), while departures around 6 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IND to PHL?
- The scheduled IND–PHL flight time averages 1h 53m over 588 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are IND to PHL flights cancelled?
- 2.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from IND to PHL?
- July 2025 was the roughest month in this dataset, with only 68% of arrivals on time. The best was November 2024 at 90%. If your dates are flexible, that 23-point gap is worth planning around.
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Based on 3,229 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.