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 one-hour layover misses 1 time in 10 at 8 am and almost half the time at 7 pm.

Nonstops


Southwest	PHL	STL	2h 30m	80%	0.6%	726	Flying now
American	PHL	STL	2h 39m	78%	2.5%	880	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach St Louis on time. Total trip = scheduled departure to arrival, layover included (St Louis is 1 h behind Philadelphia). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	PHL 08:05 → ATL 10:12DL 1180	3h 57m Atlanta	ATL 14:09 → STL 14:48DL 2700	7h 45m	98%	85%
United Details →	PHL 06:00 → ORD 07:30UA 660	3h 10m Chicago	ORD 10:40 → STL 12:11UA 1355	7h 11m	100%	84%
American Details →	PHL 06:00 → CLT 07:53AA 3139	3h 07m Charlotte	CLT 11:00 → STL 11:59AA 2717	6h 58m	99%	80%
American Details →	PHL 07:39 → ORD 09:08AA 3074	3h 24m Chicago	ORD 12:32 → STL 13:55AA 3815 · flown by Envoy	7h 16m	97%	80%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	1h 42m Atlanta	ATL 09:04 → STL 09:43DL 1400	5h 31m	96%	80%
Delta Details →	PHL 06:25 → ATL 08:32DL 1152	3h 20m Atlanta	ATL 11:52 → STL 12:34DL 566	7h 05m	99%	79%
United Details →	PHL 06:10 → IAD 07:19UA 3693 · flown by Republic	1h 41m Dulles	IAD 09:00 → STL 10:27UA 4425 · flown by GoJet	5h 17m	99%	79%
Delta Details →	PHL 06:10 → DTW 07:50DL 1540	1h 00m Detroit	DTW 08:50 → STL 09:32DL 2868	4h 22m	91%	78%
Tight connection: often missed
Delta Details →	PHL 17:22 → DTW 19:09DL 1391	51m Detroit	DTW 20:00 → STL 20:39DL 1541	4h 17m	63%	47%
American Details →	PHL 16:22 → DFW 19:09AA 2356	46m Dallas-Fort Worth	DFW 19:55 → STL 21:48AA 1010	6h 24m	50%	30%
American Details →	PHL 15:45 → ORD 17:29AA 470	48m Chicago	ORD 18:17 → STL 19:44AA 4144 · flown by Envoy	4h 59m	56%	30%

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

DTW · 1h 00m · leaves 06:10 9%

ORD · 1h 06m · leaves 08:05 12%

DFW · 51m · leaves 07:09 17%

Afternoon and evening

DTW · 51m · leaves 17:22 37%

ORD · 48m · leaves 15:45 44%

DFW · 46m · leaves 16:22 50%

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 2700 ATL 14:09 → STL Connection details →	2h 16m	6h 18m	100%	89%
United UA 1811 PHL 08:05 → ORD American AA 3815 ORD 12:32 → STL Connection details →	2h 58m	6h 50m	97%	80%
American AA 3041 PHL 17:35 → ATL Delta DL 1403 ATL 23:10 → STL Connection details →	3h 15m	7h 21m	95%	76%

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