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 13% of the time at 11 am and 45% of the time at 6 pm.

Nonstops (seasonal or thin)


Delta	JFK	SAT	4h 32m	89%	4.1%	362	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach San Antonio on time. Total trip = scheduled departure to arrival, layover included (San Antonio is 1 h behind New York). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	JFK 06:00 → ATL 08:24DL 2286	3h 51m Atlanta	ATL 12:15 → SAT 13:38DL 1408	8h 41m	99%	82%
American Details →	JFK 08:15 → DFW 11:11AA 2234	3h 34m Dallas-Fort Worth	DFW 14:45 → SAT 15:55AA 3777 · flown by Envoy	8h 40m	97%	77%
Delta Details →	JFK 13:40 → LAX 16:38DL 747	2h 21m Los Angeles	LAX 18:59 → SAT 23:52DL 2686	11h 12m	94%	76%
Delta Details →	JFK 08:40 → ATL 11:14DL 2227	2h 31m Atlanta	ATL 13:45 → SAT 15:14DL 2009	7h 34m	95%	74%
American Details →	JFK 06:49 → DFW 09:50AA 813	2h 11m Dallas-Fort Worth	DFW 12:01 → SAT 13:11AA 4084 · flown by Envoy	7h 22m	100%	74%
Delta Details →	JFK 17:40 → ATL 20:34DL 2293	2h 26m Atlanta	ATL 23:00 → SAT 00:33 +1DL 1508	7h 53m	94%	74%
Delta Details →	JFK 11:00 → ATL 13:33DL 1029	2h 16m Atlanta	ATL 15:49 → SAT 17:22DL 1465	7h 22m	96%	72%
Delta Details →	JFK 13:10 → ATL 15:45DL 2342	3h 24m Atlanta	ATL 19:09 → SAT 20:41DL 2893	8h 31m	98%	72%
Tight connection: often missed
American Details →	JFK 17:25 → MIA 20:59AA 688	53m Miami	MIA 21:52 → SAT 23:59AA 1468	7h 34m	70%	46%
American Details →	JFK 14:42 → DFW 17:44AA 1953	46m Dallas-Fort Worth	DFW 18:30 → SAT 19:43AA 499	6h 01m	55%	31%
American Details →	JFK 15:30 → CLT 17:44AA 1294	50m Charlotte	CLT 18:34 → SAT 20:40AA 1258	6h 10m	44%	31%

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 18m · leaves 06:00 7%

SLC · 48m · leaves 06:00 20%

DFW · 50m · leaves 08:15 21%

Afternoon and evening

LAX · 51m · leaves 15:00 30%

DFW · 46m · leaves 14:42 45%

CLT · 50m · leaves 15:30 56%

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 532 JFK 08:25 → DEN United UA 1022 DEN 13:44 → SAT Connection details →	2h 49m	9h 30m	96%	83%
JetBlue B6 411 JFK 06:40 → LAS Southwest WN 1221 LAS 12:30 → SAT Connection details →	3h 19m	11h 35m	99%	76%
JetBlue B6 183 JFK 08:10 → MCO Frontier F9 1653 MCO 13:45 → SAT Connection details →	2h 43m	8h 29m	96%	76%

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