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 50-minute layover misses 12% of the time at 7 am and almost half the time at 7 pm.

Nonstops


Delta	PHL	DTW	1h 50m	82%	2.4%	1,678	Flying now
American	PHL	DTW	1h 56m	77%	4.5%	1,162	Flying now
Frontier	PHL	DTW	1h 51m	72%	4.0%	75	Flying now
Spirit	PHL	DTW	1h 48m	90%	0.9%	110	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	PHL 06:10 → IAD 07:19UA 3693 · flown by Republic	1h 16m Dulles	IAD 08:35 → DTW 10:14UA 6137 · flown by Mesa	4h 04m	97%	85%
United Details →	PHL 06:15 → IAH 08:44UA 584	1h 01m Houston	IAH 09:45 → DTW 13:42UA 4064 · flown by Mesa	7h 27m	96%	85%
Delta Details →	PHL 06:00 → BOS 07:30DL 5740 · flown by Republic	1h 45m Boston	BOS 09:15 → DTW 11:25DL 1748	5h 25m	98%	83%
Delta Details →	PHL 05:40 → MSP 07:23DL 2791	1h 37m Minneapolis	MSP 09:00 → DTW 11:43DL 1433	6h 03m	95%	82%
Delta Details →	PHL 06:25 → ATL 08:32DL 1152	2h 28m Atlanta	ATL 11:00 → DTW 12:55DL 1240	6h 31m	98%	82%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	1h 56m Atlanta	ATL 09:18 → DTW 11:10DL 1298	5h 57m	97%	81%
American Details →	PHL 05:15 → ORD 06:38AA 1652	3h 22m Chicago	ORD 10:00 → DTW 12:32AA 3498 · flown by Envoy	7h 19m	98%	81%
Delta Details →	PHL 08:05 → ATL 10:12DL 1180	3h 35m Atlanta	ATL 13:47 → DTW 15:43DL 1031	7h 37m	98%	80%
Tight connection: often missed
United Details →	PHL 17:00 → ORD 18:33UA 308	1h 14m Chicago	ORD 19:47 → DTW 22:19UA 2426	5h 19m	75%	46%
American Details →	PHL 15:45 → ORD 17:29AA 470	1h 27m Chicago	ORD 18:56 → DTW 21:34AA 4931 · flown by SkyWest	5h 48m	74%	38%
American Details →	PHL 15:00 → DFW 17:50AA 402	57m Dallas-Fort Worth	DFW 18:47 → DTW 22:36AA 3108	7h 36m	66%	33%

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 16m · leaves 06:10 3%

IAH · 1h 01m · leaves 06:15 4%

ORD · 1h 16m · leaves 08:05 10%

Afternoon and evening

ORD · 1h 14m · leaves 17:00 25%

ATL · 50m · leaves 16:08 36%

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.


United UA 3693 PHL 06:10 → IAD Delta DL 2884 IAD 11:10 → DTW Connection details →	3h 51m	6h 34m	100%	88%
Southwest WN 3227 PHL 06:12 → STL Delta DL 2868 STL 10:20 → DTW Connection details →	2h 48m	6h 43m	96%	87%
American AA 1846 PHL 08:20 → RDU Delta DL 2265 RDU 13:00 → DTW Connection details →	3h 04m	6h 38m	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