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

No clear winner: American’s CLT → SAT flights land within a few points of 77% on time whatever the hour.

Nonstops


American	CLT	SAT	3h 06m	77%	1.7%	1,379	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 Charlotte). Layovers up to 4 hours. Pick a connection for the details.


United Details →	CLT 06:00 → IAD 07:29UA 6279 · flown by Mesa	56m Dulles	IAD 08:25 → SAT 10:59UA 1789	5h 59m	91%	83%
Delta Details →	CLT 05:30 → ATL 06:42DL 3186	1h 40m Atlanta	ATL 08:22 → SAT 09:52DL 1676	5h 22m	99%	82%
Delta Details →	CLT 08:01 → ATL 09:16DL 3156	2h 59m Atlanta	ATL 12:15 → SAT 13:38DL 1408	6h 40m	99%	82%
American Details →	CLT 05:45 → PHL 07:27AA 2727	3h 03m Philadelphia	PHL 10:30 → SAT 13:30AA 2489	8h 45m	97%	82%
American Details →	CLT 11:01 → MIA 13:11AA 969	2h 24m Miami	MIA 15:35 → SAT 17:45AA 4069 · flown by Envoy	7h 44m	99%	81%
United Details →	CLT 11:48 → IAH 13:34UA 6236 · flown by Mesa	3h 01m Houston	IAH 16:35 → SAT 17:44UA 5379 · flown by SkyWest	6h 56m	99%	81%
Southwest Details →	CLT 07:35 → MDW 08:40WN 3048	1h 55m Chicago	MDW 10:35 → SAT 13:15WN 2570	6h 40m	98%	79%
American Details →	CLT 08:56 → DFW 10:48AA 1276	3h 57m Dallas-Fort Worth	DFW 14:45 → SAT 15:55AA 3777 · flown by Envoy	7h 59m	99%	78%
Tight connection: often missed
American Details →	CLT 16:38 → DFW 18:37AA 2815	1h 18m Dallas-Fort Worth	DFW 19:55 → SAT 21:03AA 546	5h 25m	67%	31%
American Details →	CLT 18:26 → ORD 19:51AA 2488	1h 17m Chicago	ORD 21:08 → SAT 23:59AA 431	6h 33m	62%	28%
American Details →	CLT 18:00 → DFW 20:00AA 2409	48m Dallas-Fort Worth	DFW 20:48 → SAT 22:00AA 1406	5h 00m	50%	28%

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 · 56m · leaves 06:00 9%

DFW · 1h 13m · leaves 08:56 11%

BNA · 1h 00m · leaves 06:35 12%

Afternoon and evening

ATL · 54m · leaves 16:56 40%

MDW · 1h 15m · leaves 19:05 41%

DFW · 48m · leaves 18:00 50%

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 1782 CLT 08:00 → EWR United UA 515 EWR 12:20 → SAT Connection details →	2h 21m	8h 21m	96%	83%
American AA 5039 CLT 09:10 → ATL Delta DL 2009 ATL 13:45 → SAT Connection details →	3h 04m	7h 04m	100%	78%
American AA 1758 CLT 11:30 → DEN Frontier F9 2356 DEN 15:40 → SAT Connection details →	2h 44m	8h 26m	95%	78%

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