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 4 in 5 on time.

Nonstops (seasonal or thin)


Delta	STT	JFK	4h 24m	86%	3.8%	239	Flying now
American	STT	JFK	4h 25m	74%	3.0%	305	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


JetBlue Details →	STT 16:07 → SJU 16:49B6 435	3h 01m San Juan	SJU 19:50 → JFK 22:00B6 504	7h 42m	98%	68%
Delta Details →	STT 13:20 → ATL 17:18DL 1823	1h 24m Atlanta	ATL 18:42 → JFK 21:28DL 2398	8h 08m	89%	65%
American Details →	STT 16:50 → MIA 19:54AA 2738	1h 57m Miami	MIA 21:51 → JFK 00:59 +1AA 944	8h 09m	97%	62%
JetBlue Details →	STT 14:49 → SJU 15:30B6 808	2h 51m San Juan	SJU 18:21 → JFK 22:29B6 304	7h 40m	94%	61%
American Details →	STT 13:49 → MIA 16:50AA 2744	1h 43m Miami	MIA 18:33 → JFK 21:45AA 1922	7h 56m	97%	57%
American Details →	STT 11:43 → CLT 15:49AA 2431	2h 13m Charlotte	CLT 18:02 → JFK 20:06AA 657	8h 23m	97%	54%
Delta Details →	STT 15:29 → ATL 19:29DL 1889	1h 01m Atlanta	ATL 20:30 → JFK 23:04DL 2101	7h 35m	100%	45%

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.

Afternoon and evening

ATL · 1h 00m · leaves 15:33 18%

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.


JetBlue B6 808 STT 14:49 → SJU Delta DL 1961 SJU 17:45 → JFK Connection details →	2h 15m	7h 12m	87%	71%
American AA 2431 STT 11:43 → CLT Delta DL 5067 CLT 19:26 → JFK Connection details →	3h 37m	9h 59m	100%	63%
American AA 2744 STT 13:49 → MIA Delta DL 2500 MIA 19:59 → JFK Connection details →	3h 09m	9h 30m	97%	49%

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