Route · EYW → PHL · 2020–2025 BTS data
Key West to Philadelphia
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), EYW to PHL (Key West to Philadelphia) ranks #3775 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 71.2%
- On-time
- -7.8 pts
- vs US avg
- 113 min
- Delay when late
- 2,084
- Flights
- #3775 of 4927
- Corpus placement
Cancelled
1.5%
Best Month
Oct 2024 94%
Worst Month
Mar 2025 64%
Distance
1,121 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 55 | 14 | 0 | 0 | YX,AA |
| Nov 2025 | 50 | 8 | 3 | 0 | AA,YX |
| Oct 2025 | 31 | 9 | 0 | 0 | AA,YX |
| Sep 2025 | 30 | 6 | 0 | 0 | YX,AA |
| Aug 2025 | 31 | 11 | 0 | 3 | AA |
| Jul 2025 | 31 | 16 | 0 | 1 | AA |
| Jun 2025 | 30 | 10 | 0 | 2 | AA |
| May 2025 | 35 | 13 | 0 | 0 | AA,YX |
| Apr 2025 | 60 | 10 | 0 | 1 | YX,AA |
| Mar 2025 | 59 | 21 | 1 | 1 | AA,YX |
| Feb 2025 | 56 | 16 | 2 | 1 | AA,YX |
| Jan 2025 | 62 | 17 | 1 | 2 | AA,YX |
| Dec 2024 | 57 | 15 | 2 | 0 | AA,YX |
| Nov 2024 | 58 | 12 | 0 | 0 | YX,AA |
| Oct 2024 | 54 | 3 | 3 | 0 | YX,AA |
| May 2024 | 34 | 16 | 0 | 0 | AA,YX |
| Apr 2024 | 30 | 20 | 0 | 1 | AA |
| Mar 2024 | 31 | 14 | 1 | 1 | AA,YX |
| Jan 2024 | 31 | 10 | 1 | 0 | AA |
| Dec 2023 | 31 | 13 | 0 | 1 | AA |
| Aug 2023 | 31 | 7 | 1 | 1 | AA |
| Jul 2023 | 31 | 12 | 0 | 0 | AA |
| Jun 2023 | 30 | 10 | 0 | 0 | AA |
| May 2023 | 31 | 10 | 0 | 0 | AA |
EYW–PHL seasonal on-time pattern
Best: September (85.0%) · weakest: May (62.4%)
Strongest calendar month
September
85.0% on-time · ~30 flights/mo
Busiest calendar month
February
~44 flights/mo avg
Weakest calendar month
May
62.4% on-time · ~37 flights/mo
Cancellation Rate
1.5%
15 of 979 flights
Diversion Rate
1.5%
15 of 979 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
EYW - Key West
Full on-time, delay-cause, and seasonal performance for Key West, FL.
EYW on-time profilePHL - Philadelphia
Full on-time, delay-cause, and seasonal performance for Philadelphia, PA.
PHL on-time profileCompare the two airports
See EYW and PHL side by side on delays, cancellations, and reliability.
Compare EYW vs PHLOrigin-hub reliability standing
Softer reliability from EYW
Among 11 routes leaving EYW, only 6 (including this one) clear below 75% on-time, while 0 stay ≥85% and 5 sit mid-band. Travelers comparing EYW options should weigh this 71.2% print against those peers · fleet on-time rank #4796 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to EYW–PHL.
Routes with a similar on-time rate
What the Data Says About EYW to PHL
On-time performance on the EYW to PHL pairing (Key West to Philadelphia) trails a chunk of the network: 71.2% of 2,084 tracked flights arrived on schedule, with a 113.2-minute average delay on the ones that ran late. The route spans about 1,121 miles across 4 carriers. Cancellations over the trailing 24 months hit 1.5% (15 of 979 flights), with 1.5% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 94% on-time, while Mar 2025 came in at just 64% - a 30-point swing worth factoring into travel timing.
On the multi-year calendar, EYW–PHL peaks in September at 85.0% on-time while February carries the heaviest traffic (~44 flights per month) ; the softest month is May at 62.4%, a 22.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does EYW to PHL rank among US routes by traffic? ▼
How often are flights delayed from EYW to PHL? ▼
What is the cancellation rate for EYW to PHL? ▼
How far is the flight from EYW to PHL? ▼
When is the best time to fly from EYW to PHL? ▼
Airports on this route
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 EYW–PHL data
EYW–PHL sits 7.8 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare EYW and PHL airport profiles: delay causes and top routes differ even on the same corridor. EYW airport
- If your dates flex, September (85.0% on-time) beats May (62.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 71.2% 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.
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.