Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: airlines and hours on this route all land within a few points of 3 in 4 on time.

Nonstops


JetBlue	MCO	ISP	2h 46m	87%	1.3%	392	Flying now
Frontier	MCO	ISP	2h 45m	78%	2.5%	364	Flying now
Southwest	MCO	ISP	2h 35m	69%	1.6%	667	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Islip on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	MCO 07:10 → BWI 09:30WN 1956	1h 10m Baltimore	BWI 10:40 → ISP 11:50WN 4691	4h 40m	96%	87%
Southwest Details →	MCO 09:15 → BWI 11:30WN 2612	1h 50m Baltimore	BWI 13:20 → ISP 14:30WN 966	5h 15m	100%	77%
JetBlue Details →	MCO 09:00 → FLL 10:07B6 2547	1h 31m Fort Lauderdale	FLL 11:38 → ISP 14:28B6 514	5h 28m	95%	68%
Southwest Details →	MCO 10:55 → BWI 13:10WN 193	2h 55m Baltimore	BWI 16:05 → ISP 17:15WN 4126	6h 20m	100%	63%
Southwest Details →	MCO 17:18 → BWI 19:52WN 889	2h 33m Baltimore	BWI 22:25 → ISP 23:35WN 4321	6h 22m	87%	45%
Tight connection: often missed
Southwest Details →	MCO 20:45 → BWI 20:55WN 455	1h 30m Baltimore	BWI 22:25 → ISP 23:35WN 4321	2h 55m	74%	37%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

BWI · 1h 10m · leaves 07:10 4%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Frontier F9 3274 MCO 06:40 → BWI Southwest WN 4691 BWI 10:40 → ISP Connection details →	1h 39m	5h 10m	85%	77%
Frontier F9 4004 MCO 18:04 → BWI Southwest WN 4321 BWI 22:25 → ISP Connection details →	1h 50m	5h 36m	61%	33%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON