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 one-hour layover misses 6% of the time at 9 am and 3 times in 5 at 6 pm.

Nonstops (seasonal or thin)


American	DFW	SJU	4h 45m	68%	1.6%	704	Flying now
Frontier	DFW	SJU	5h 01m	58%	10.4%	67	Flying now
Spirit	DFW	SJU	4h 42m	77%	5.2%	213	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 (San Juan is 1 h ahead of Dallas-Fort Worth). Layovers up to 4 hours. Pick a connection for the details.


American Details →	DFW 05:00 → MIA 08:55AA 3189	2h 22m Miami	MIA 11:17 → SJU 14:12AA 2584	8h 12m	99%	90%
United Details →	DFW 09:46 → IAH 11:03UA 1586	4h 00m Houston	IAH 15:03 → SJU 20:38UA 701	9h 52m	97%	88%
American Details →	DFW 05:00 → CLT 08:38AA 575	2h 25m Charlotte	CLT 11:03 → SJU 14:50AA 783	8h 50m	99%	83%
United Details →	DFW 05:45 → DEN 06:53UA 773	2h 50m Denver	DEN 09:43 → SJU 17:38UA 1339	10h 53m	100%	82%
United Details →	DFW 09:45 → ORD 12:26UA 1114	2h 12m Chicago	ORD 14:38 → SJU 20:34UA 695	9h 49m	100%	79%
American Details →	DFW 06:00 → MIA 10:00AA 3055	3h 03m Miami	MIA 13:03 → SJU 15:47AA 2581	8h 47m	98%	79%
United Details →	DFW 19:34 → IAH 20:55UA 2114	3h 01m Houston	IAH 23:56 → SJU 05:29 +1UA 1497	8h 55m	96%	79%
Delta Details →	DFW 06:55 → ATL 10:09DL 893	2h 57m Atlanta	ATL 13:06 → SJU 16:46DL 1946	8h 51m	98%	78%
Tight connection: often missed
JetBlue Details →	DFW 11:31 → FLL 15:27B6 482	53m Fort Lauderdale	FLL 16:20 → SJU 19:04B6 153	6h 33m	73%	45%
American Details →	DFW 14:25 → CLT 18:13AA 1285	48m Charlotte	CLT 19:01 → SJU 22:45AA 2830	7h 26m	41%	28%
American Details →	DFW 14:25 → MIA 18:24AA 1167	52m Miami	MIA 19:16 → SJU 21:59AA 1364	6h 34m	39%	25%

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

ATL · 1h 03m · leaves 05:30 6%

FLL · 1h 09m · leaves 06:05 10%

MIA · 1h 17m · leaves 06:00 12%

Afternoon and evening

IAD · 53m · leaves 12:25 21%

FLL · 53m · leaves 11:31 27%

MIA · 52m · leaves 14:25 61%

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.


American AA 3173 DFW 06:15 → MCO Southwest WN 1465 MCO 12:10 → SJU Connection details →	2h 20m	7h 50m	96%	84%
Frontier F9 2147 DFW 05:18 → DEN United UA 1339 DEN 09:43 → SJU Connection details →	3h 12m	11h 20m	99%	82%
American AA 3390 DFW 06:00 → ATL Delta DL 1946 ATL 13:06 → SJU Connection details →	3h 53m	9h 46m	100%	82%

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