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Route · PHL → BHM · 2020–2025 BTS data

Philadelphia to Birmingham

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHL to BHM (Philadelphia to Birmingham) ranks #3628 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

77.7%
On-time
-1.3 pts
vs US avg
80 min
Delay when late
2,314
Flights
#3628 of 4927
Corpus placement

Cancelled

1.9%

Best Month

Sep 2023 93%

Worst Month

May 2025 64%

Distance

772 mi

Carriers

5

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 30 11 0 0 OH
Nov 2025 30 5 0 0 OH,YX
Oct 2025 61 9 0 0 OH,YX
Sep 2025 52 7 0 0 OH
Aug 2025 59 17 1 0 OH
Jul 2025 49 12 4 2 AA,OH
Jun 2025 48 17 3 0 AA,OH
May 2025 58 21 6 0 OH
Apr 2025 53 8 0 1 OH
Mar 2025 31 4 0 0 OH
Dec 2024 35 7 0 0 OH
Nov 2024 41 3 0 0 OH
Oct 2024 60 6 0 0 OH
Sep 2024 57 15 0 0 OH
Aug 2024 61 16 3 0 OH
Jul 2024 53 16 1 1 OH
Jun 2024 53 6 1 0 OH
May 2024 62 18 0 1 OH
Apr 2024 57 10 0 0 OH
Mar 2024 31 6 0 0 OH
Jan 2024 31 6 1 0 OH
Oct 2023 34 1 0 0 OH
Sep 2023 54 4 2 0 OH
Aug 2023 32 6 0 0 OH,YX

PHL–BHM seasonal on-time pattern

Best: November (87.1%) · weakest: August (68.9%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 78.1%

Strongest calendar month

November

87.1% on-time · ~34 flights/mo

Busiest calendar month

February

~55 flights/mo avg

Weakest calendar month

August

68.9% on-time · ~50 flights/mo

Cancellation Rate

1.9%

22 of 1,132 flights

Diversion Rate

0.4%

5 of 1,132 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

BHM - Birmingham

Full on-time, delay-cause, and seasonal performance for Birmingham, AL.

BHM on-time profile

Compare the two airports

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

Compare PHL vs BHM

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: Birmingham · fleet on-time rank #3928 of 4927.

What the Data Says About PHL to BHM

The Philadelphia to Birmingham corridor (PHL to BHM) posts a 77.7% on-time rate on the lower edge of the average band, based on 2,314 tracked flights. Late flights run 79.6 minutes behind on average. 5 carriers cover the 772-mile route; over the last 24 months, 22 of 1,132 flights were cancelled (1.9%) and 0.4% diverted.

The monthly split is wide on this route: Sep 2023 posted the strongest performance at 93% on-time, while May 2025 came in at just 64% - a 29-point swing worth factoring into travel timing.

On the multi-year calendar, PHL–BHM peaks in November at 87.1% on-time while February carries the heaviest traffic (~55 flights per month) ; the softest month is August at 68.9%, a 18.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PHL to BHM rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PHL to BHM ranks #3628 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 BHM? ▼
Flights from Philadelphia to Birmingham have a 77.7% on-time rate based on 2,314 flights. The average delay is 79.6 minutes. The best recent month was Sep 2023 with 93% on-time.
What is the cancellation rate for PHL to BHM? ▼
Over the last 24 months, 1.9% of flights on this route were cancelled (22 of 1,132 flights) and 0.4% were diverted.
How far is the flight from PHL to BHM? ▼
The flight distance from Philadelphia (PHL) to Birmingham (BHM) is approximately 772 miles. This route is served by 5 carriers.
When is the best time to fly from PHL to BHM? ▼
The best recent month for on-time performance was Sep 2023 (93% on-time). The worst was May 2025 (64% on-time). Consider booking during months with historically better performance.

Airports on this route

PHL Airport

Philadelphia
BHM Airport

Birmingham
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–BHM data

PHL–BHM is mid-pack at 77.7% on-time; month and carrier mix move more than the corridor headline.

  • Compare PHL and BHM airport profiles: delay causes and top routes differ even on the same corridor. PHL airport
  • If your dates flex, November (87.1% on-time) beats August (68.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 77.7% 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.