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Route · PHL → DAY · 2020–2025 BTS data

Philadelphia to Dayton

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHL to DAY (Philadelphia to Dayton) ranks #4122 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

79.4%
On-time
+0.4 pts
vs US avg
85 min
Delay when late
1,539
Flights
#4122 of 4927
Corpus placement

Cancelled

1.6%

Best Month

Jan 2023 90%

Worst Month

Nov 2021 85%

Distance

477 mi

Carriers

2

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 31 15 4 0 OH
Oct 2025 31 3 0 0 OH
Sep 2025 30 5 0 0 OH
May 2025 35 17 2 0 OH
Apr 2025 30 8 1 0 OH
Mar 2025 31 11 0 1 OH
Apr 2023 30 6 1 0 OH
Mar 2023 31 8 0 0 OH
Feb 2023 31 4 0 0 OH
Jan 2023 52 5 0 0 OH
Oct 2022 31 5 0 1 OH
Sep 2022 30 7 0 0 OH
Aug 2022 31 14 0 0 OH
Jul 2022 30 11 1 0 OH
Jun 2022 30 12 2 0 OH
May 2022 30 11 1 0 OH
Apr 2022 30 11 0 0 OH
Jan 2022 30 12 0 0 OH
Dec 2021 43 12 0 0 OH
Nov 2021 53 8 0 0 OH
Jul 2021 31 16 1 0 OH
Jun 2021 30 11 0 0 OH
Apr 2021 30 2 0 0 OH
Mar 2021 31 0 0 0 OH

PHL–DAY seasonal on-time pattern

Best: September (88.1%) · weakest: June (61.7%)

60%70%80%90% JanFebMarAprMayJunJulAugSepOctNovDec 63.5%

Strongest calendar month

September

88.1% on-time · ~36 flights/mo

Busiest calendar month

February

~70 flights/mo avg

Weakest calendar month

June

61.7% on-time · ~30 flights/mo

Cancellation Rate

1.6%

13 of 792 flights

Diversion Rate

0.3%

2 of 792 flights

Explore origin & destination

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

PHL - Philadelphia

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

PHL on-time profile

DAY - Dayton

Full on-time, delay-cause, and seasonal performance for Dayton, OH.

DAY on-time profile

Compare the two airports

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

Compare PHL vs DAY

Origin-hub reliability standing

Mid-pack among PHL departures

From PHL, this corridor sits with 60 other 75–85% on-time routes out of 65 tracked departures, not the hub's reliability leaders (4 at ≥85%) and not the softest ( 1 below 75%). Destination: Dayton · fleet on-time rank #3383 of 4927.

What the Data Says About PHL to DAY

1,539 tracked flights put the PHL to DAY pairing (Philadelphia to Dayton) at a 79.4% on-time rate, squarely in line with the wider network. Delays that do occur run 84.8 minutes on average. Across the 477-mile route and its 2 carriers, the trailing 24 months show 1.6% cancelled and 0.3% diverted (792 flights sampled).

Monthly performance varies moderately here: Jan 2023 was the strongest month at 90% on-time versus Nov 2021 at 85%, a 6-point difference.

On the multi-year calendar, PHL–DAY peaks in September at 88.1% on-time while February carries the heaviest traffic (~70 flights per month) ; the softest month is June at 61.7%, a 26.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PHL to DAY rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PHL to DAY ranks #4122 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 PHL to DAY? ▼
Flights from Philadelphia to Dayton have a 79.4% on-time rate based on 1,539 flights. The average delay is 84.8 minutes. The best recent month was Jan 2023 with 90% on-time.
What is the cancellation rate for PHL to DAY? ▼
Over the last 24 months, 1.6% of flights on this route were cancelled (13 of 792 flights) and 0.3% were diverted.
How far is the flight from PHL to DAY? ▼
The flight distance from Philadelphia (PHL) to Dayton (DAY) is approximately 477 miles. This route is served by 2 carriers.
When is the best time to fly from PHL to DAY? ▼
The best recent month for on-time performance was Jan 2023 (90% on-time). The worst was Nov 2021 (85% on-time). Consider booking during months with historically better performance.

Airports on this route

PHL Airport

Philadelphia
DAY Airport

Dayton
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 PHL–DAY data

PHL–DAY is mid-pack at 79.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare PHL and DAY airport profiles: delay causes and top routes differ even on the same corridor. PHL airport
  • If your dates flex, September (88.1% on-time) beats June (61.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 79.4% 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.