Islip (ISP) to Raleigh/Durham (RDU)
Flight time
≈ 1h 43m
Bearing
224° SW
Islip (ISP) to Raleigh/Durham (RDU) is 458 miles (738 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ISP–RDU
US DOT T-100 · filed dataIn April 2026, Breeze Airways was the only carrier flying nonstop ISP–RDU; the Airbus A220-300 was the most common aircraft at 100% of departures; flights ran 83% full.
Departures
32
April 2026
Seats
4,384
both directions
Passengers
3,629
both directions
Load factor
82.8%
passengers ÷ seats
Who flies ISP–RDU?
Breeze Airways was the only carrier to fly nonstop ISP–RDU in April 2026 (32 departures).
- MX
Breeze Airways
32 departures · 4,384 seats
Share of departures100.0%82.8%
Load
What plane flies ISP–RDU?
In April 2026, the Airbus A220-300 flew 100% of ISP–RDU departures.
- Airbus A220-300
32 departures · 82.8% load
100.0%
How has ISP–RDU traffic changed?
Nonstop ISP–RDU departures rose from 26 in May 2025 to 32 in April 2026.
Monthly nonstop ISP–RDU traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
26 departures · 2,486 passengers
88.5%
Load
June 2025
26 departures · 2,448 passengers
87.2%
Load
July 2025
26 departures · 2,554 passengers
91.0%
Load
August 2025
26 departures · 2,578 passengers
90.9%
Load
September 2025
18 departures · 1,688 passengers
84.3%
Load
October 2025
18 departures · 1,701 passengers
87.5%
Load
November 2025
16 departures · 1,460 passengers
84.5%
Load
December 2025
18 departures · 1,706 passengers
87.8%
Load
January 2026
34 departures · 2,473 passengers
59.8%
Load
February 2026
30 departures · 2,696 passengers
67.5%
Load
March 2026
33 departures · 3,417 passengers
75.6%
Load
April 2026
32 departures · 3,629 passengers
82.8%
Load
By direction
The DOT files each direction separately — they rarely match.
ISP → RDU
83.3% full
16 departures · 1,826 passengers
RDU → ISP
82.3% full
16 departures · 1,803 passengers
Nonstop ISP–RDU 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 Islip (ISP) from Raleigh/Durham (RDU)?
ISP to RDU is 458 miles (738 km / 398 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ISP to RDU?
A nonstop covers the 458-mile great-circle distance in roughly 1h 43m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ISP–RDU?
In April 2026, the Airbus A220-300 flew the largest share of departures (100.0%).
What mileage do I earn flying ISP–RDU?
Distance-based programs credit off the 458-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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