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


Delta	PHL	ATL	2h 15m	85%	3.0%	3,017	Flying now
American	PHL	ATL	2h 20m	78%	3.2%	1,616	Flying now
Frontier	PHL	ATL	2h 27m	67%	2.6%	1,046	Flying now
Spirit	PHL	ATL	2h 20m	68%	4.2%	71	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	PHL 06:12 → STL 07:32WN 3227	2h 28m St Louis	STL 10:00 → ATL 12:35WN 236	6h 23m	96%	89%
Delta Details →	PHL 06:00 → BOS 07:30DL 5740 · flown by Republic	1h 35m Boston	BOS 09:05 → ATL 11:49DL 456	5h 49m	97%	83%
American Details →	PHL 06:00 → CLT 07:53AA 3139	1h 17m Charlotte	CLT 09:10 → ATL 10:41AA 5039 · flown by PSA	4h 41m	98%	82%
United Details →	PHL 06:10 → IAD 07:19UA 3693 · flown by Republic	56m Dulles	IAD 08:15 → ATL 10:14UA 2739	4h 04m	94%	82%
United Details →	PHL 06:00 → ORD 07:30UA 660	2h 59m Chicago	ORD 10:29 → ATL 13:44UA 2684	7h 44m	100%	81%
Delta Details →	PHL 06:10 → DTW 07:50DL 1540	2h 35m Detroit	DTW 10:25 → ATL 12:25DL 2856	6h 13m	96%	81%
Delta Details →	PHL 05:40 → MSP 07:23DL 2791	1h 05m Minneapolis	MSP 08:28 → ATL 11:54DL 1052	6h 14m	90%	78%
Delta Details →	PHL 09:30 → BOS 10:59DL 5845 · flown by Republic	1h 31m Boston	BOS 12:30 → ATL 15:17DL 2779	5h 47m	95%	77%
Tight connection: often missed
United Details →	PHL 11:38 → ORD 13:06UA 2207	49m Chicago	ORD 13:55 → ATL 17:10UA 356	5h 32m	64%	46%
American Details →	PHL 19:35 → CLT 21:38AA 1661	58m Charlotte	CLT 22:36 → ATL 23:58AA 5498 · flown by PSA	4h 23m	70%	45%
American Details →	PHL 14:26 → MIA 17:27AA 3265	53m Miami	MIA 18:20 → ATL 20:25AA 535	5h 59m	58%	17%

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

CLT · 1h 17m · leaves 06:00 2%

DFW · 1h 08m · leaves 07:09 6%

IAD · 56m · leaves 06:10 6%

Afternoon and evening

CLT · 58m · leaves 19:35 30%

MIA · 53m · leaves 14:26 42%

DCA · 46m · leaves 15:29 71%

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 3227 PHL 06:12 → STL Delta DL 1571 STL 09:24 → ATL Connection details →	1h 52m	5h 50m	96%	88%
Frontier F9 2059 PHL 07:20 → RDU Delta DL 1699 RDU 11:15 → ATL Connection details →	2h 30m	5h 22m	95%	88%
American AA 959 PHL 08:20 → RDU Delta DL 1488 RDU 13:49 → ATL Connection details →	3h 58m	7h 00m	97%	87%

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