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 4% of the time at 9 am and 18% of the time at 4 pm.

Nonstops


Delta	SAT	ATL	2h 24m	88%	1.9%	2,611	Flying now
Southwest	SAT	ATL	2h 15m	80%	0.3%	305	Flying now
Frontier	SAT	ATL	2h 29m	65%	0.0%	83	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SAT 05:40 → DEN 06:57UA 1464	3h 03m Denver	DEN 10:00 → ATL 15:10UA 2424	8h 30m	99%	83%
United Details →	SAT 07:00 → IAD 11:27UA 471	1h 08m Dulles	IAD 12:35 → ATL 14:34UA 471	6h 34m	96%	82%
Delta Details →	SAT 06:30 → SLC 08:24DL 2592	1h 31m Salt Lake City	SLC 09:55 → ATL 15:41DL 835	8h 11m	96%	82%
Delta Details →	SAT 06:05 → MSP 09:00DL 2717	1h 40m Minneapolis	MSP 10:40 → ATL 14:05DL 1046	7h 00m	98%	81%
Delta Details →	SAT 05:15 → DTW 09:22DL 2497	1h 03m Detroit	DTW 10:25 → ATL 12:25DL 2856	6h 08m	96%	81%
Delta Details →	SAT 14:30 → MSP 17:25DL 2528	2h 45m Minneapolis	MSP 20:10 → ATL 23:47DL 1032	8h 17m	98%	80%
Southwest Details →	SAT 05:40 → DAL 06:55WN 4512	2h 35m Dallas	DAL 09:30 → ATL 12:35WN 1766	5h 55m	98%	76%
United Details →	SAT 07:43 → IAH 08:50UA 410	3h 05m Houston	IAH 11:55 → ATL 15:16UA 4079 · flown by Mesa	6h 33m	96%	75%
Tight connection: often missed
United Details →	SAT 13:35 → EWR 18:30UA 1261	1h 22m Newark	EWR 19:52 → ATL 22:22UA 1287	7h 47m	74%	44%
American Details →	SAT 17:47 → CLT 21:47AA 2496	49m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	5h 11m	55%	37%
American Details →	SAT 11:04 → DFW 12:21AA 413	1h 10m Dallas-Fort Worth	DFW 13:31 → ATL 16:42AA 1376	4h 38m	75%	34%

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

IAD · 1h 08m · leaves 07:00 4%

DTW · 1h 03m · leaves 05:15 4%

LAX · 1h 13m · leaves 07:19 6%

Afternoon and evening

DFW · 56m · leaves 13:44 23%

DTW · 46m · leaves 16:00 25%

CLT · 49m · leaves 17:47 45%

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.


Frontier F9 3707 SAT 19:51 → DEN Delta DL 302 DEN 00:40 → ATL Connection details →	3h 17m	8h 51m	95%	86%
Southwest WN 4392 SAT 06:10 → HOU Delta DL 1509 HOU 10:16 → ATL Connection details →	3h 01m	6h 10m	100%	86%
Southwest WN 3559 SAT 05:10 → BWI Delta DL 801 BWI 11:52 → ATL Connection details →	2h 22m	7h 31m	98%	85%

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