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

Take the nonstop: United IAD → STT (4h 07m) reaches Charlotte Amalie on time 87% of the time; the most reliable connection, Delta via Atlanta (6h 54m), 66%.

Nonstops (seasonal or thin)


United	IAD	STT	4h 07m	88%	1.2%	336	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	IAD 06:30 → IAH 08:39UA 1935	1h 13m Houston	IAH 09:52 → STT 15:43UA 1908	9h 13m	100%	83%
Delta Details →	IAD 06:00 → ATL 07:46DL 2127	2h 47m Atlanta	ATL 10:33 → STT 14:19DL 1902	8h 19m	97%	81%
American Details →	IAD 06:33 → CLT 08:00AA 1216	1h 57m Charlotte	CLT 09:57 → STT 13:48AA 2432	7h 15m	93%	72%
American Details →	IAD 06:14 → DFW 08:35AA 2617	1h 30m Dallas-Fort Worth	DFW 10:05 → STT 16:11AA 2943	9h 57m	93%	69%
Delta Details →	IAD 08:27 → ATL 10:17DL 3080	1h 18m Atlanta	ATL 11:35 → STT 15:21DL 1883	6h 54m	91%	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

ATL · 1h 18m · leaves 08:27 9%

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.


United UA 2021 IAD 08:34 → SJU JetBlue B6 936 SJU 14:35 → STT Connection details →	2h 01m	6h 38m	91%	65%
United UA 1073 IAD 08:45 → MIA American AA 2738 MIA 13:08 → STT Connection details →	1h 33m	7h 15m	76%	63%
Frontier F9 4707 IAD 07:30 → ATL Delta DL 1883 ATL 11:35 → STT Connection details →	1h 51m	7h 51m	77%	56%

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