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, any airlines

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%
Delta + Americantwo ticketsDetails →	ATL 07:38 → CLT 08:53DL 3144	2h 07m Charlotte	CLT 11:00 → HHH 12:24AA 3582 · flown by Envoy	4h 42m	94%	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%
Delta + Unitedtwo ticketsDetails →	ATL 07:25 → ORD 08:35DL 1178	2h 10m Chicago	ORD 10:45 → HHH 14:21UA 3581 · flown by Republic	6h 56m	94%	73%
Frontier + Americantwo ticketsDetails →	ATL 06:35 → ORD 07:55F9 1441	2h 05m Chicago	ORD 10:00 → HHH 13:32AA 3862 · flown by Envoy	6h 58m	82%	71%
Delta + Americantwo ticketsDetails →	ATL 10:10 → CLT 11:26DL 3190	3h 47m Charlotte	CLT 15:13 → HHH 16:32AA 3560 · flown by Envoy	6h 19m	99%	67%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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