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 90-minute layover misses 2% of the time at 8 am and 1 time in 4 at 5 pm.

Nonstops


Frontier	PHL	RDU	1h 34m	81%	2.7%	600	Flying now
American	PHL	RDU	1h 35m	74%	2.4%	2,076	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	PHL 06:25 → ATL 08:32DL 1152	2h 42m Atlanta	ATL 11:14 → RDU 12:44DL 1488	6h 19m	99%	88%
Southwest Details →	PHL 06:12 → STL 07:32WN 3227	2h 23m St Louis	STL 09:55 → RDU 12:45WN 297	6h 33m	96%	85%
American Details →	PHL 06:00 → CLT 07:53AA 3139	3h 11m Charlotte	CLT 11:04 → RDU 12:02AA 2363	6h 02m	99%	85%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	1h 21m Atlanta	ATL 08:43 → RDU 10:10DL 1699	4h 55m	94%	84%
Delta Details →	PHL 06:00 → BOS 07:30DL 5740 · flown by Republic	2h 30m Boston	BOS 10:00 → RDU 12:04DL 2118	6h 04m	99%	83%
Delta Details →	PHL 06:10 → DTW 07:50DL 1540	2h 25m Detroit	DTW 10:15 → RDU 11:57DL 2164	5h 50m	96%	83%
Delta Details →	PHL 08:05 → ATL 10:12DL 1180	2h 50m Atlanta	ATL 13:02 → RDU 14:29DL 2026	6h 24m	96%	82%
United Details →	PHL 06:00 → ORD 07:30UA 660	1h 40m Chicago	ORD 09:10 → RDU 12:33UA 5326 · flown by SkyWest	6h 33m	98%	80%
Tight connection: often missed
Delta Details →	PHL 16:08 → ATL 18:25DL 2131	53m Atlanta	ATL 19:18 → RDU 20:47DL 1518	4h 39m	66%	47%
American Details →	PHL 13:49 → CLT 15:45AA 793	48m Charlotte	CLT 16:33 → RDU 17:36AA 2379	3h 47m	73%	42%
American Details →	PHL 17:40 → ORD 19:26AA 1012	1h 30m Chicago	ORD 20:56 → RDU 23:59AA 2167	6h 19m	72%	37%

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

IAD · 1h 02m · leaves 06:10 3%

ORD · 1h 14m · leaves 08:05 10%

ATL · 1h 02m · leaves 08:05 13%

Afternoon and evening

ATL · 58m · leaves 17:12 38%

DCA · 1h 15m · leaves 15:29 43%

ORD · 56m · leaves 17:40 44%

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.


American AA 4338 PHL 09:32 → ATL Delta DL 1550 ATL 14:45 → RDU Connection details →	2h 52m	6h 42m	100%	83%
American AA 5530 PHL 10:30 → DTW Delta DL 1407 DTW 15:59 → RDU Connection details →	3h 31m	7h 14m	100%	80%
United UA 660 PHL 06:00 → ORD American AA 4756 ORD 09:29 → RDU Connection details →	1h 59m	6h 48m	96%	80%

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