The Islip to Baltimore route connects Long Island Mac Arthur Airport (ISP) in US with Baltimore/Washington International Thurgood Marshall Airport (BWI) in US. This short-haul flight covers approximately 220 miles (354 km) with a typical flight time of 1h 5m. This route is served by 2 airlines: Southwest, XFL. AirportRoutes has tracked 27 unique flight numbers on this route.
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The Islip (ISP) → Baltimore (BWI) route links Long Island with central Maryland over 339 miles (546 km). It’s a practical corridor for business trips, weekend getaways, and onward connections through the Baltimore–Washington region. Typical nonstop flight time is about 1 hour 10 minutes to 1 hour 30 minutes, with total door-to-gate time often closer to 3–4 hours once airport arrival and ground transport are included. Travelers choose ISP for its smaller-terminal convenience and generally quicker curb-to-gate experience compared with larger NYC-area airports, while BWI offers strong access to Baltimore, Washington, D.C., and Amtrak/MARC rail options. The short distance also makes this route a time-saving alternative to driving, especially during Northeast corridor traffic.
Book early for the best USD fares, especially around holidays and summer weekends; midweek departures often price lower. At ISP, arrive about 90 minutes before departure—security lines are usually manageable, but morning peaks can add time. Pack with liquid limits in mind and keep chargers accessible for quick screening. Choose seats early if you prefer the left/right views: coastal and Chesapeake-area scenery can appear on clear days. At BWI, follow signs for Ground Transportation—rideshares, shuttles, and taxis are well organized. If heading to D.C. or downtown Baltimore, consider the BWI Rail Station connections via shuttle bus. Expect a smooth, short cruise segment; snacks may be limited, so bring a refillable water bottle and light food.
Baltimore pairs historic waterfront character with a strong arts-and-food scene. The Inner Harbor anchors many first visits, with the National Aquarium and harbor walks nearby. For history, Fort McHenry National Monument is essential, while Fells Point offers cobblestone streets, pubs, and maritime charm. Art lovers should prioritize the Baltimore Museum of Art and the Walters Art Museum, and neighborhoods like Mount Vernon add architecture and cultural venues. Food is a major draw: try Maryland blue crab—especially crab cakes, steamed crabs, and crab soup—often seasoned with Old Bay. For local flavor, explore Lexington Market and the surrounding downtown food spots. Day trips to nearby Chesapeake Bay towns are easy from the city.
Late spring and early fall—roughly April–June and September–October—often bring comfortable weather and solid sightseeing conditions in Baltimore. Summer can be hot and humid, and fares may rise with school vacations. Winter is generally cheaper, though occasional snow or coastal storms can disrupt schedules. Expect peak pricing around major holidays and popular event weekends, including summer waterfront festivals and early fall sports weekends. For better deals in USD, consider flying midweek and avoiding holiday Mondays; shoulder-season travel often balances lower prices with pleasant conditions.
Long Island Mac Arthur Airport
KISPISPBaltimore/Washington International Thurgood Marshall Airport
KBWIBWI2
Operators27
Tracked Flights220
Miles1h 5m
Flight Duration
| Airline | ICAO | IATA |
|---|---|---|
| Southwest |
SWA
|
WN
|
| EXECUTIVE FLITEWAYS |
XFL
|
-
|
| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 43 | 11% |
|
| Tuesday | 58 | 15% |
|
| Wednesday | 60 | 16% |
|
| Thursday | 58 | 15% |
|
| Friday | 53 | 14% |
|
| Saturday | 53 | 14% |
|
| Sunday | 53 | 14% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Southwest
SWA
/ WN
|
|
B738 | 16:40 4:40 PM (Representative) |
M
T
W
T
F
S
S
|
May 9, 2026 | Active |
| PC12 | 09:10 9:10 AM (Representative) |
M
T
W
T
F
S
S
|
Feb 14, 2026 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 09:10 9:10 AM | EXECUTIVE FLITEWAYS |
XFL
|
-
|
| 16:40 4:40 PM | Southwest |
SWA
|
WN
|
Time Information
Times are shown in the departure airport's local timezone (KISP - America/New_York).