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 3% of the time at 8 am and 1 time in 5 at 4 pm.

Nonstops


American	STL	PHL	2h 18m	85%	2.3%	877	Flying now
Southwest	STL	PHL	2h 10m	76%	0.4%	725	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	STL 05:40 → MDW 06:45WN 1008	2h 15m Chicago	MDW 09:00 → PHL 11:55WN 4901	5h 15m	98%	93%
Delta Details →	STL 06:21 → MSP 07:57DL 1597	3h 12m Minneapolis	MSP 11:09 → PHL 14:43DL 2679	7h 21m	98%	83%
Delta Details →	STL 06:00 → ATL 08:38DL 1524	2h 43m Atlanta	ATL 11:21 → PHL 13:24DL 2279	6h 26m	99%	82%
American Details →	STL 05:30 → DFW 07:29AA 2261	1h 11m Dallas-Fort Worth	DFW 08:40 → PHL 13:02AA 2128	6h 32m	95%	80%
Delta Details →	STL 06:30 → DTW 09:04DL 1626	1h 06m Detroit	DTW 10:10 → PHL 11:46DL 2331	4h 19m	93%	79%
American Details →	STL 05:10 → CLT 08:03AA 858	2h 57m Charlotte	CLT 11:00 → PHL 12:43AA 2498	6h 33m	99%	76%
United Details →	STL 06:00 → ORD 07:30UA 2805	1h 36m Chicago	ORD 09:06 → PHL 12:25UA 2752	5h 25m	97%	76%
United Details →	STL 07:20 → ORD 09:00UA 4423 · flown by GoJet	2h 33m Chicago	ORD 11:33 → PHL 14:47UA 2182	6h 27m	97%	75%
Tight connection: often missed
Delta Details →	STL 17:36 → MSP 19:15DL 3185	1h 10m Minneapolis	MSP 20:25 → PHL 23:56DL 2703	5h 21m	74%	55%
Delta Details →	STL 18:10 → DTW 20:45DL 2822	50m Detroit	DTW 21:35 → PHL 23:17DL 2402	4h 07m	70%	53%
American Details →	STL 13:14 → DFW 15:10AA 5655 · flown by PSA	1h 00m Dallas-Fort Worth	DFW 16:10 → PHL 20:53AA 2973	6h 39m	63%	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

DFW · 1h 11m · leaves 05:30 5%

ORD · 1h 04m · leaves 09:08 6%

DTW · 1h 06m · leaves 06:30 7%

Afternoon and evening

BNA · 1h 00m · leaves 19:05 43%

IAH · 49m · leaves 14:57 44%

DFW · 1h 04m · leaves 17:13 64%

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.


Delta DL 1524 STL 06:00 → ATL American AA 4338 ATL 12:25 → PHL Connection details →	3h 47m	7h 36m	99%	92%
Southwest WN 3985 STL 05:05 → TPA American AA 2807 TPA 10:48 → PHL Connection details →	2h 23m	7h 22m	98%	87%
Delta DL 1626 STL 06:30 → DTW American AA 5530 DTW 12:58 → PHL Connection details →	3h 54m	7h 09m	97%	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