Baltimore (BWI) to Islip (ISP)
Flight time
≈ 1h 14m
Bearing
58° NE
Baltimore (BWI) to Islip (ISP) is 220 miles (353 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BWI–ISP
Filed traffic dataIn July 2026, Southwest Airlines was the only carrier flying nonstop BWI–ISP; the Boeing 737-700 was the most common aircraft at 61% of departures; flights ran 79% full.
Departures
281
July 2026
Seats
42,677
both directions
Passengers
33,738
both directions
Load factor
79.0%
RPM ÷ ASM
Who flies BWI–ISP?
Southwest Airlines was the only carrier to fly nonstop BWI–ISP in July 2026 (281 departures).
- WN
281 departures · 42,677 seats
Share of departures100.0%79.0%
Load
What plane flies BWI–ISP?
In July 2026, the Boeing 737-700 flew 61% of BWI–ISP departures — more than any other aircraft type.
- Boeing 737-700
171 departures · 81.1% load
60.9% - Boeing 737 MAX 8
77 departures · 79.0% load
27.4% - Boeing 737-800
33 departures · 70.9% load
11.7%
How has BWI–ISP traffic changed?
Nonstop BWI–ISP departures rose from 195 in August 2025 to 281 in July 2026.
Monthly nonstop BWI–ISP traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
195 departures · 28,012 passengers
88.1%
Load
September 2025
180 departures · 24,022 passengers
81.2%
Load
October 2025
187 departures · 25,294 passengers
80.2%
Load
November 2025
178 departures · 19,388 passengers
67.4%
Load
December 2025
186 departures · 23,017 passengers
76.3%
Load
January 2026
179 departures · 16,261 passengers
57.4%
Load
February 2026
158 departures · 14,034 passengers
57.8%
Load
March 2026
170 departures · 18,795 passengers
70.8%
Load
April 2026
213 departures · 22,376 passengers
63.8%
Load
May 2026
228 departures · 26,525 passengers
69.8%
Load
June 2026
275 departures · 29,163 passengers
69.4%
Load
July 2026
281 departures · 33,738 passengers
79.0%
Load
By direction
Each direction is filed separately — they rarely match.
ISP → BWI
80.6% full
141 departures · 17,446 passengers
BWI → ISP
77.4% full
140 departures · 16,292 passengers
Nonstop BWI–ISP traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Baltimore
US
Baltimore/Washington International Thurgood Marshall Airport
Coordinates
39.18°N, 76.67°W
Hemisphere
N · W
Frequently asked
How far is Baltimore (BWI) from Islip (ISP)?
BWI to ISP is 220 miles (353 km / 191 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BWI to ISP?
A nonstop covers the 220-mile great-circle distance in roughly 1h 14m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BWI–ISP?
In July 2026, the Boeing 737-700 flew the largest share of departures (60.9%), followed by the Boeing 737 MAX 8 (27.4%).
What mileage do I earn flying BWI–ISP?
Distance-based programs credit off the 220-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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