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	JFK	STT	4h 10m	81%	2.5%	239	Flying now
American	JFK	STT	4h 01m	79%	2.6%	305	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	JFK 06:00 → ATL 08:24DL 2286	2h 09m Atlanta	ATL 10:33 → STT 14:19DL 1902	8h 19m	97%	82%
American Details →	JFK 05:55 → MIA 09:12AA 655	3h 56m Miami	MIA 13:08 → STT 16:00AA 2738	10h 05m	99%	81%
American Details →	JFK 05:59 → CLT 07:57AA 2643	2h 00m Charlotte	CLT 09:57 → STT 13:48AA 2432	7h 49m	97%	75%
JetBlue Details →	JFK 08:29 → SJU 12:27B6 1603	2h 08m San Juan	SJU 14:35 → STT 15:12B6 936	6h 43m	95%	66%
JetBlue Details →	JFK 06:29 → BOS 07:46B6 2718	2h 10m Boston	BOS 09:56 → STT 13:59B6 807	7h 30m	97%	66%

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

MIA · 55m · leaves 05:55 7%

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.


Delta DL 1528 JFK 07:05 → MIA American AA 2738 MIA 13:08 → STT Connection details →	2h 47m	8h 55m	97%	77%
JetBlue B6 883 JFK 05:01 → MCO Southwest WN 4999 MCO 10:50 → STT Connection details →	3h 07m	8h 49m	94%	74%
Delta DL 5765 JFK 06:00 → BOS JetBlue B6 807 BOS 09:56 → STT Connection details →	2h 32m	7h 59m	97%	70%

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