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

Connect in the morning. The same 75-minute layover misses 5% of the time at 7 am and 37% of the time at 7 pm.

Nonstops


American	DCA	GSP	1h 45m	66%	4.4%	1,018	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	DCA 06:00 → ATL 07:48DL 410	2h 09m Atlanta	ATL 09:57 → GSP 10:57DL 2158	4h 57m	99%	90%
American Details →	DCA 06:18 → CLT 07:57AA 1581	3h 10m Charlotte	CLT 11:07 → GSP 12:14AA 5802 · flown by Piedmont	5h 56m	97%	89%
Delta Details →	DCA 06:59 → ATL 08:51DL 330	2h 24m Atlanta	ATL 11:15 → GSP 12:18DL 1725	5h 19m	98%	86%
American Details →	DCA 05:00 → CLT 06:26AA 365	2h 39m Charlotte	CLT 09:05 → GSP 10:12AA 5799 · flown by Piedmont	5h 12m	99%	85%
Southwest Details →	DCA 06:10 → BNA 07:00WN 1425	3h 05m Nashville	BNA 10:05 → GSP 12:15WN 4622	6h 05m	98%	85%
Delta Details →	DCA 08:00 → ATL 09:52DL 343	3h 20m Atlanta	ATL 13:12 → GSP 14:13DL 1273	6h 13m	97%	82%
American Details →	DCA 08:30 → CLT 10:13AA 1518	2h 52m Charlotte	CLT 13:05 → GSP 14:07AA 5805 · flown by Piedmont	5h 37m	95%	79%
Delta Details →	DCA 12:17 → ATL 14:07DL 380	3h 53m Atlanta	ATL 18:00 → GSP 19:06DL 1021	6h 49m	98%	76%
Tight connection: often missed
American Details →	DCA 13:44 → MIA 16:29AA 2915	1h 01m Miami	MIA 17:30 → GSP 19:38AA 3558 · flown by Envoy	5h 54m	71%	50%
Delta Details →	DCA 17:29 → DTW 19:15DL 1454	50m Detroit	DTW 20:05 → GSP 21:48DL 1561	4h 19m	51%	39%
American Details →	DCA 17:50 → CLT 19:37AA 2182	58m Charlotte	CLT 20:35 → GSP 21:30AA 5524 · flown by PSA	3h 40m	70%	36%

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 11m · leaves 06:00 5%

ATL · 1h 06m · leaves 06:59 5%

DTW · 1h 10m · leaves 06:00 5%

Afternoon and evening

CLT · 58m · leaves 17:50 30%

LGA · 1h 15m · leaves 17:40 37%

DTW · 50m · leaves 17:29 49%

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.


Southwest WN 4969 DCA 06:55 → ATL Delta DL 1725 ATL 11:15 → GSP Connection details →	2h 25m	5h 23m	97%	87%
American AA 3976 DCA 08:20 → ATL Delta DL 1273 ATL 13:12 → GSP Connection details →	2h 45m	5h 53m	95%	83%
American AA 4358 DCA 06:59 → BNA Southwest WN 4622 BNA 10:05 → GSP Connection details →	2h 00m	5h 16m	94%	82%

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