Sun, Oct 4 has passed, so this is the 12-month record.

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

No clear winner: Delta’s HHH → ATL flights land within a few points of 84% on time whatever the hour.

Nonstops (seasonal or thin)


Delta	HHH	ATL	1h 18m	84%	0.0%	197	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. Layovers up to 4 hours. Pick a connection for the details.


American Details →	HHH 17:18 → CLT 18:45AA 3560 · flown by Envoy	3h 51m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	6h 40m	99%	66%
United Details →	HHH 13:45 → EWR 16:00UA 3447 · flown by Republic	3h 52m Newark	EWR 19:52 → ATL 22:22UA 1287	8h 37m	100%	62%
United Details →	HHH 15:05 → ORD 16:51UA 3542 · flown by Republic	3h 18m Chicago	ORD 20:09 → ATL 23:30UA 2770	8h 25m	94%	61%
Delta Details →	HHH 16:15 → LGA 18:25DL 5590 · flown by Republic	2h 05m New York	LGA 20:30 → ATL 23:43DL 975	7h 28m	79%	48%
American Details →	HHH 14:03 → ORD 15:39AA 3862 · flown by Envoy	3h 20m Chicago	ORD 18:59 → ATL 22:05AA 2779	8h 00m	94%	45%
American Details →	HHH 11:40 → CLT 12:59AA 3563 · flown by Envoy	3h 47m Charlotte	CLT 16:46 → ATL 18:14AA 5040 · flown by PSA	6h 34m	100%	44%
American Details →	HHH 11:07 → DCA 12:52AA 4515 · flown by Republic	1h 28m Washington	DCA 14:20 → ATL 16:26AA 5084 · flown by PSA	5h 19m	90%	27%

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.

Afternoon and evening

EWR · 1h 12m · leaves 13:45 11%

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 3564 HHH 10:57 → DCA Delta DL 360 DCA 16:00 → ATL Connection details →	3h 16m	7h 00m	95%	69%
American AA 3563 HHH 11:40 → CLT Delta DL 3032 CLT 16:56 → ATL Connection details →	3h 57m	6h 37m	100%	62%
American AA 3562 HHH 14:48 → CLT Delta DL 2132 CLT 19:48 → ATL Connection details →	3h 39m	6h 22m	97%	55%

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