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 DCA → HHH flights land within a few points of 87% on time whatever the hour.

Nonstops (seasonal or thin)


American	DCA	HHH	2h 03m	87%	1.2%	330	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 →	DCA 05:00 → CLT 06:26AA 365	3h 19m Charlotte	CLT 09:45 → HHH 11:10AA 3563 · flown by Envoy	6h 05m	99%	93%
American Details →	DCA 06:18 → CLT 07:57AA 1581	3h 03m Charlotte	CLT 11:00 → HHH 12:24AA 3582 · flown by Envoy	6h 02m	96%	88%
United + Americantwo ticketsDetails →	DCA 06:30 → ORD 07:46UA 1793	2h 14m Chicago	ORD 10:00 → HHH 13:32AA 3862 · flown by Envoy	7h 03m	97%	84%
United Details →	DCA 06:00 → EWR 07:19UA 4167 · flown by GoJet	3h 18m Newark	EWR 10:37 → HHH 12:52UA 3676 · flown by Republic	6h 52m	98%	81%
United Details →	DCA 07:15 → ORD 08:28UA 2638	2h 17m Chicago	ORD 10:45 → HHH 14:21UA 3581 · flown by Republic	7h 06m	100%	80%
American + Deltatwo ticketsDetails →	DCA 08:20 → ATL 10:27AA 3976 · flown by Envoy	3h 44m Atlanta	ATL 14:11 → HHH 15:32DL 5830 · flown by Republic	7h 12m	98%	79%
Delta Details →	DCA 06:20 → LGA 07:34DL 1172	1h 31m New York	LGA 09:05 → HHH 11:31DL 5618 · flown by Republic	5h 11m	91%	77%
American Details →	DCA 08:30 → CLT 10:13AA 1518	2h 47m Charlotte	CLT 13:00 → HHH 14:16AA 3562 · flown by Envoy	5h 46m	95%	69%
Tight connection: often missed
American Details →	DCA 08:30 → CLT 10:13AA 1518	47m Charlotte	CLT 11:00 → HHH 12:24AA 3582 · flown by Envoy	3h 50m	74%	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

ORD · 1h 02m · leaves 08:25 7%

CLT · 47m · leaves 08:30 26%

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