Watertown (ART) to Philadelphia (PHL)
Flight time
≈ 1h 22m
Bearing
172° S
Watertown (ART) to Philadelphia (PHL) is 287 miles (463 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ART–PHL
Filed traffic dataIn May 2026, Piedmont Airlines was the only carrier flying nonstop ART–PHL; the Embraer ERJ-145 was the most common aircraft at 100% of departures; flights ran 61% full.
Departures
100
May 2026
Seats
5,000
both directions
Passengers
3,033
both directions
Load factor
60.7%
RPM ÷ ASM
Who flies ART–PHL?
Piedmont Airlines was the only carrier to fly nonstop ART–PHL in May 2026 (100 departures).
- PT
100 departures · 5,000 seats
Share of departures100.0%60.7%
Load
What plane flies ART–PHL?
In May 2026, the Embraer ERJ-145 flew 100% of ART–PHL departures.
- Embraer ERJ-145
100 departures · 60.7% load
100.0%
How has ART–PHL traffic changed?
Nonstop ART–PHL departures fell from 116 in June 2025 to 100 in May 2026.
Monthly nonstop ART–PHL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
116 departures · 4,353 passengers
75.0%
Load
July 2025
116 departures · 4,842 passengers
83.5%
Load
August 2025
123 departures · 5,261 passengers
85.5%
Load
September 2025
117 departures · 4,208 passengers
71.9%
Load
October 2025
122 departures · 4,550 passengers
74.6%
Load
November 2025
112 departures · 3,648 passengers
65.1%
Load
December 2025
113 departures · 3,744 passengers
66.3%
Load
January 2026
113 departures · 2,994 passengers
53.0%
Load
February 2026
101 departures · 3,530 passengers
69.9%
Load
March 2026
120 departures · 3,931 passengers
65.5%
Load
April 2026
107 departures · 3,216 passengers
60.1%
Load
May 2026
100 departures · 3,033 passengers
60.7%
Load
By direction
Each direction is filed separately — they rarely match.
ART → PHL
59.7% full
60 departures · 1,790 passengers
PHL → ART
62.2% full
40 departures · 1,243 passengers
Nonstop ART–PHL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Watertown
US
Watertown International Airport
Coordinates
43.99°N, 76.02°W
Hemisphere
N · W
Frequently asked
How far is Watertown (ART) from Philadelphia (PHL)?
ART to PHL is 287 miles (463 km / 250 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ART to PHL?
A nonstop covers the 287-mile great-circle distance in roughly 1h 22m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ART–PHL?
In May 2026, the Embraer ERJ-145 flew the largest share of departures (100.0%).
What mileage do I earn flying ART–PHL?
Distance-based programs credit off the 287-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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