Charleston (CHS) to Islip (ISP)
Flight time
≈ 2h 08m
Bearing
33° NE
Charleston (CHS) to Islip (ISP) is 667 miles (1,073 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies CHS–ISP
US DOT T-100 · filed dataIn April 2026, Breeze Airways was the only carrier flying nonstop CHS–ISP; the Airbus A220-300 was the most common aircraft at 88% of departures; flights ran 79% full.
Departures
16
April 2026
Seats
2,134
both directions
Passengers
1,679
both directions
Load factor
78.7%
passengers ÷ seats
Who flies CHS–ISP?
Breeze Airways was the only carrier to fly nonstop CHS–ISP in April 2026 (16 departures).
- MX
Breeze Airways
16 departures · 2,134 seats
Share of departures100.0%78.7%
Load
What plane flies CHS–ISP?
In April 2026, the Airbus A220-300 flew 88% of CHS–ISP departures — more than any other aircraft type.
- Airbus A220-300
14 departures · 76.3% load
87.5% - Embraer E190
2 departures · 100.0% load
12.5%
How has CHS–ISP traffic changed?
Nonstop CHS–ISP departures fell from 18 in May 2025 to 16 in April 2026.
Monthly nonstop CHS–ISP traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
18 departures · 1,868 passengers
75.8%
Load
June 2025
28 departures · 3,040 passengers
79.3%
Load
July 2025
34 departures · 3,929 passengers
84.4%
Load
August 2025
36 departures · 4,314 passengers
87.5%
Load
September 2025
24 departures · 2,535 passengers
77.1%
Load
October 2025
29 departures · 2,716 passengers
67.5%
Load
November 2025
24 departures · 2,160 passengers
65.7%
Load
December 2025
28 departures · 2,567 passengers
68.0%
Load
January 2026
18 departures · 1,480 passengers
60.0%
Load
February 2026
14 departures · 1,231 passengers
64.2%
Load
March 2026
18 departures · 1,877 passengers
78.0%
Load
April 2026
16 departures · 1,679 passengers
78.7%
Load
By direction
The DOT files each direction separately — they rarely match.
CHS → ISP
84.4% full
8 departures · 900 passengers
ISP → CHS
73.0% full
8 departures · 779 passengers
Nonstop CHS–ISP traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Charleston (CHS) from Islip (ISP)?
CHS to ISP is 667 miles (1,073 km / 579 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from CHS to ISP?
A nonstop covers the 667-mile great-circle distance in roughly 2h 08m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies CHS–ISP?
In April 2026, the Airbus A220-300 flew the largest share of departures (87.5%), followed by the Embraer E190 (12.5%).
What mileage do I earn flying CHS–ISP?
Distance-based programs credit off the 667-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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