BWI → ISPBaltimore to Islip

live

Direct flights from Baltimore (BWI) to Islip (ISP): 7 nonstop departures observed each week across 1 airline. 38% of the last 24 operated flights arrived within 15 minutes of schedule. The median arrival is 27 minutes late. No cancellations were recorded across the 24 tracked flights. The nonstop covers 353 km, an estimated 57 minutes in the air. Measured by Pro Flight Search from live flight boards at Baltimore and Islip. Updated 23 October 2026 at 02:18 UTC.

Today, BWI → ISP

Thu 22 Oct · local times
WN4553Southwest31 min late

The BWI board at 22:18 shows departure at 22:56 instead of 22:25.

Later cancelled
0.2%of 24,300 past Southwest flights whose board showed 20 to 40 min late
Still to leave today
No other nonstoplast BWI to ISP departure of the day
Track WN4553 →
WN2933SouthwestIn the air, 49 min late

Left BWI at 11:24, 49 min after its 10:35 slot.

Track WN2933 →
  1. 10:35 WN2933Southwest Left 11:24 +49 ·
  2. 13:24 WN1029Southwest Airlines Left 13:24 ·
  3. 15:50 WN1148Southwest Left 16:30 +40 ·
  4. 22:25 WN4553Southwest Est. 22:56 +31 ·

Checked BWI board 22:18

BWI Baltimore busy · +28
ISP Islip tracking
353 km · ~0h 57m est.
dep bank 09:10–22:257x weekly
Runs rough · 1 airline · 7x weekly · nonstop
38% on time

of the last 24 operated BWI → ISP flights arrived within 15 minutes

Median arrival delay is +27 min. 0 of 24 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+27 minacross the last 24 operated legs
Flight time~0h 57mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 24

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN38% on time

Flights WN2452 09:10 Su · WN2933 10:35 Mo Th Fr · WN1229 10:45 Sa · WN1021 11:00 Tu We

History

operated legs · board outcomes
10-22WN1029departed+0
10-22WN1148departed+40
10-22WN2933departed+49
10-21WN1021departed+13
10-21WN1148departed+34
10-21WN2089departed+8
10-21WN4553departed+11
10-20WN1148departed+36
10-20WN2089departed+10
10-20WN4553departed+7
10-19WN1029departed+7
10-19WN1148departed+32
10-19WN2933departed+35
10-19WN4553departed+44
10-18WN1495departed+37
10-18WN2452departed+6
10-18WN4553departed+27
10-17WN1148departed+19
10-17WN1229departed+16
10-17WN4553departed+53
10-16WN1029departed+11
10-16WN1148departed+58
10-16WN2933departed+19
10-16WN4553departed+99

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
BWIBaltimore +28 min busy 🌤 clear · N 0 kt Full BWI delay board →
ISPIslip tracking Full ISP delay board →

How the Baltimore to Islip route actually runs

Pro Flight Search records official board updates for nonstop BWI to ISP flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Baltimore (BWI) to Islip (ISP) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/BWI-ISP
How we measure this →

BWI to ISP questions

Is BWI–ISP running on time right now?

Some delays possible. The departure side at BWI is the weaker end, route health score 62/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on BWI–ISP?

Operators schedule morning departures around 09:10 from BWI. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ISP delay card to confirm conditions when you'd arrive.

How long is the flight from BWI to ISP?

Great-circle distance is 353 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 55–60 min gate-to-gate on this route.

How often does BWI–ISP fly?

Southwest Airlines runs the route with about 26 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.