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Route · IND → PHL · 2020–2025 BTS data

Indianapolis to Philadelphia

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IND to PHL (Indianapolis to Philadelphia) ranks #1563 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

85.3%
On-time
+6.3 pts
vs US avg
89 min
Delay when late
7,917
Flights
#1563 of 4927
Corpus placement

Cancelled

1.6%

Best Month

Feb 2024 97%

Worst Month

Jul 2025 69%

Distance

588 mi

Carriers

13

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 99 29 1 0 YX,OH,AA
Nov 2025 88 16 0 0 OH,AA,YX
Oct 2025 166 36 1 2 AA,OH,YX
Sep 2025 102 16 2 0 OH,YX,AA
Aug 2025 133 30 4 0 AA,YX,OH
Jul 2025 159 50 5 0 AA,OH,YX
Jun 2025 150 33 3 0 AA,YX
May 2025 179 47 4 0 AA,OH,YX
Apr 2025 137 32 0 1 OH,YX,AA
Mar 2025 118 14 2 0 OH,YX
Feb 2025 94 21 3 0 OH,YX
Jan 2025 89 20 4 0 AA,OH,YX
Dec 2024 103 22 1 0 AA,OH,YX
Nov 2024 120 12 0 0 YX,OH,AA
Oct 2024 177 24 0 0 YX,AA
Sep 2024 155 24 1 0 YX,AA
Aug 2024 185 43 5 0 AA,F9,YX,OH
Jul 2024 191 52 6 1 AA,F9,OH,YX
Jun 2024 154 32 3 0 AA,F9,OH,YX
May 2024 119 19 0 0 AA,F9,OH,YX
Apr 2024 118 13 0 1 OH,YX
Mar 2024 124 13 0 0 AA,OH,YX
Feb 2024 115 4 1 0 AA,YX
Jan 2024 115 13 4 0 YX

IND–PHL seasonal on-time pattern

Best: March (90.5%) · weakest: July (79.9%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 83.8%

Strongest calendar month

March

90.5% on-time · ~104 flights/mo

Busiest calendar month

October

~133 flights/mo avg

Weakest calendar month

July

79.9% on-time · ~131 flights/mo

Cancellation Rate

1.6%

50 of 3,190 flights

Diversion Rate

0.2%

5 of 3,190 flights

Explore origin & destination

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

IND - Indianapolis

Full on-time, delay-cause, and seasonal performance for Indianapolis, IN.

IND on-time profile

PHL - Philadelphia

Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.

PHL on-time profile

Compare the two airports

See IND and PHL side by side on delays, cancellations, and reliability.

Compare IND vs PHL

Origin-hub reliability standing

Among IND's stronger departures

IND → PHL posts a 85.3% on-time rate, landing in the ≥85% band with 12 of 32 BTS-tracked routes leaving Indianapolis. The same hub also shows 20 mid-band and 0 challenged departures · fleet-wide on-time rank #1117 of 4927 (highest on-time = #1).

What the Data Says About IND to PHL

Indianapolis to Philadelphia (IND to PHL) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.3% on-time rate across 7,917 flights, with delays that do happen averaging 88.6 minutes. The corridor runs roughly 588 miles and is served by 13 carriers. Over the most recent 24 months, 50 of 3,190 flights were cancelled (1.6%) and 5 diverted (0.2%).

The monthly split is wide on this route: Feb 2024 posted the strongest performance at 97% on-time, while Jul 2025 came in at just 69% - a 28-point swing worth factoring into travel timing.

On the multi-year calendar, IND–PHL peaks in March at 90.5% on-time while October carries the heaviest traffic (~133 flights per month) ; the softest month is July at 79.9%, a 10.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IND to PHL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IND to PHL ranks #1563 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 IND to PHL? ▼
Flights from Indianapolis to Philadelphia have a 85.3% on-time rate based on 7,917 flights. The average delay is 88.6 minutes. The best recent month was Feb 2024 with 97% on-time.
What is the cancellation rate for IND to PHL? ▼
Over the last 24 months, 1.6% of flights on this route were cancelled (50 of 3,190 flights) and 0.2% were diverted.
How far is the flight from IND to PHL? ▼
The flight distance from Indianapolis (IND) to Philadelphia (PHL) is approximately 588 miles. This route is served by 13 carriers.
When is the best time to fly from IND to PHL? ▼
The best recent month for on-time performance was Feb 2024 (97% on-time). The worst was Jul 2025 (69% on-time). Consider booking during months with historically better performance.

Airports on this route

IND Airport

Indianapolis
PHL Airport

Philadelphia
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 IND–PHL data

IND–PHL runs 6.3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare IND and PHL airport profiles: delay causes and top routes differ even on the same corridor. IND airport
  • If your dates flex, March (90.5% on-time) beats July (79.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 85.3% 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.