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 ATL → HHH flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Delta	ATL	HHH	1h 21m	80%	0.0%	197	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Hilton Head Island on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


American Details →	ATL 05:00 → CLT 06:25AA 5507 · flown by PSA	3h 20m Charlotte	CLT 09:45 → HHH 11:10AA 3563 · flown by Envoy	6h 05m	96%	91%
American Details →	ATL 06:24 → CLT 07:55AA 5176 · flown by PSA	3h 05m Charlotte	CLT 11:00 → HHH 12:24AA 3582 · flown by Envoy	5h 56m	97%	87%
United Details →	ATL 06:07 → EWR 08:25UA 299	2h 12m Newark	EWR 10:37 → HHH 12:52UA 3676 · flown by Republic	6h 45m	98%	81%
Delta Details →	ATL 06:00 → LGA 08:11DL 404	54m New York	LGA 09:05 → HHH 11:31DL 5618 · flown by Republic	5h 31m	89%	78%
American Details →	ATL 07:25 → ORD 08:45AA 616	1h 15m Chicago	ORD 10:00 → HHH 13:32AA 3862 · flown by Envoy	6h 08m	80%	69%
American Details →	ATL 11:11 → CLT 12:36AA 5039 · flown by PSA	2h 37m Charlotte	CLT 15:13 → HHH 16:32AA 3560 · flown by Envoy	5h 18m	99%	66%

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

EWR · 1h 04m · leaves 07:15 10%

LGA · 54m · leaves 06:00 11%

ORD · 1h 15m · leaves 07:25 20%

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 3144 ATL 07:38 → CLT American AA 3582 CLT 11:00 → HHH Connection details →	2h 07m	4h 42m	94%	87%
Delta DL 1178 ATL 07:25 → ORD United UA 3581 ORD 10:45 → HHH Connection details →	2h 10m	6h 56m	94%	73%
Frontier F9 1441 ATL 06:35 → ORD American AA 3862 ORD 10:00 → HHH Connection details →	2h 05m	6h 58m	82%	71%

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