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

Connect in the morning. The same 50-minute layover misses 1 time in 10 at 7 am and barely half the time at 9 pm.

Nonstops


JetBlue	FLL	SJU	2h 37m	71%	1.6%	1,677	Flying now
Frontier	FLL	SJU	2h 48m	61%	4.0%	150	Flying now
Southwest	FLL	SJU	2h 35m	66%	0.4%	248	Not flying now
Spirit	FLL	SJU	2h 30m	55%	1.9%	263	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	FLL 19:13 → IAH 21:09UA 2474	2h 47m Houston	IAH 23:56 → SJU 05:29 +1UA 1497	10h 16m	100%	85%
Delta Details →	FLL 05:25 → ATL 07:20DL 1168	46m Atlanta	ATL 08:06 → SJU 11:44DL 1757	6h 19m	91%	79%
Delta Details →	FLL 07:40 → ATL 09:39DL 1326	3h 27m Atlanta	ATL 13:06 → SJU 16:46DL 1946	9h 06m	98%	79%
American Details →	FLL 07:44 → CLT 09:53AA 2087	1h 10m Charlotte	CLT 11:03 → SJU 14:50AA 783	7h 06m	94%	79%
Delta Details →	FLL 07:06 → JFK 10:00DL 2165	2h 30m New York	JFK 12:30 → SJU 16:29DL 1961	9h 23m	97%	78%
United Details →	FLL 07:00 → IAH 08:45UA 2314	1h 18m Houston	IAH 10:03 → SJU 15:42UA 1192	8h 42m	98%	77%
JetBlue Details →	FLL 06:35 → EWR 09:29B6 306	1h 49m Newark	EWR 11:18 → SJU 15:14B6 1889	8h 39m	96%	76%
Delta Details →	FLL 06:30 → ATL 08:26DL 1215	1h 19m Atlanta	ATL 09:45 → SJU 13:31DL 1882	7h 01m	96%	74%
Tight connection: often missed
Delta Details →	FLL 15:35 → ATL 17:43DL 1341	1h 02m Atlanta	ATL 18:45 → SJU 22:29DL 1861	6h 54m	73%	47%
JetBlue Details →	FLL 15:58 → JFK 18:59B6 1802	1h 01m New York	JFK 20:00 → SJU 00:13 +1B6 303	8h 15m	61%	30%
JetBlue Details →	FLL 17:28 → BOS 20:48B6 270	56m Boston	BOS 21:44 → SJU 02:17 +1B6 561	8h 16m	36%	16%

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

IAH · 1h 18m · leaves 07:00 2%

ATL · 1h 19m · leaves 06:30 4%

CLT · 1h 10m · leaves 07:44 6%

Afternoon and evening

JFK · 1h 01m · leaves 15:58 39%

EWR · 52m · leaves 17:58 52%

BOS · 56m · leaves 17:28 64%

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.


Southwest WN 4824 FLL 06:10 → MCO JetBlue B6 133 MCO 11:02 → SJU Connection details →	3h 47m	7h 54m	98%	83%
JetBlue B6 302 FLL 07:01 → JFK Delta DL 1961 JFK 12:30 → SJU Connection details →	2h 30m	9h 28m	100%	80%
JetBlue B6 2548 FLL 10:00 → MCO Frontier F9 1824 MCO 13:57 → SJU Connection details →	2h 49m	7h 00m	94%	72%

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