Islip (ISP) to Baltimore (BWI) flights
Southwest Airlines flies nonstop from Long Island MacArthur Airport to Baltimore/Washington International Thurgood Marshall Airport, with about 32 flights a week in July 2026. The 220-mile flight takes about 1h 11m gate to gate.
- Distance
- 220 mi · 354 km
- Flight time
- 1h 11m
- Airlines
- 1
- Seats filled
- 72%
Airlines flying ISP to BWI
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 32 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 140,022 | 1h 11m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ISP to BWI flight schedule
8 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 6:05am and the last at 4:35pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 2078Southwest Airlines | 6:05am | 7:20am | 16 | 100% |
| WN 909Southwest Airlines | 6:10am | 7:25am | 24 | 100% |
| WN 2307Southwest Airlines | 10:20am | 11:35am | 16 | 100% |
| WN 1714Southwest Airlines | 10:55am | 12:15pm | 8 | n/a |
| WN 1279Southwest Airlines | 12:35pm | 1:50pm | 12 | 83% |
| WN 2169Southwest Airlines | 12:45pm | 2:00pm | 4 | n/a |
| WN 3594Southwest Airlines | 4:05pm | 5:20pm | 24 | 71% |
| WN 1195Southwest Airlines | 4:35pm | 5:55pm | 4 | n/a |
Is ISP to BWI on time?
From September 2025 to August 2026, 85% of 1,259 flights arrived within 15 minutes of schedule and 1.5% were cancelled. Flights leaving around 6am were the most punctual (96%), those around 5pm the least (74%). Most delay time was caused by late-arriving aircraft (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,259 | 85% | 12 min | 1.5% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 5am to 6am | 132 | 95% | |
| 6am to 7am | 233 | 96% | |
| 8am to 9am | 41 | 93% | |
| 9am to 10am | 55 | 96% | |
| 10am to 11am | 44 | 91% | |
| 11am to 12pm | 64 | 84% | |
| 12pm to 1pm | 237 | 84% | |
| 2pm to 3pm | 49 | 60% | |
| 3pm to 4pm | 122 | 76% | |
| 4pm to 5pm | 126 | 80% | |
| 5pm to 6pm | 132 | 74% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 98 | 14,188 | |
| September 2025 | 90 | 12,170 | |
| October 2025 | 93 | 12,589 | |
| November 2025 | 88 | 9,257 | |
| December 2025 | 94 | 11,583 | |
| January 2026 | 89 | 8,232 | |
| February 2026 | 78 | 6,966 | |
| March 2026 | 86 | 9,458 | |
| April 2026 | 106 | 11,062 | |
| May 2026 | 114 | 12,511 | |
| June 2026 | 138 | 14,560 | |
| July 2026 | 141 | 17,446 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.