Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: American’s MKE → PHL flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


American	MKE	PHL	2h 11m	79%	4.7%	766	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 Milwaukee). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	MKE 05:45 → MDW 06:35WN 3178	2h 25m Chicago	MDW 09:00 → PHL 11:55WN 4901	5h 10m	100%	96%
Delta Details →	MKE 06:20 → MSP 07:43DL 4460 · flown by SkyWest	3h 26m Minneapolis	MSP 11:09 → PHL 14:43DL 2679	7h 22m	98%	84%
Southwest Details →	MKE 07:42 → STL 09:02WN 2327	58m St Louis	STL 10:00 → PHL 13:10WN 3222	4h 28m	91%	81%
Delta Details →	MKE 05:40 → ATL 08:42DL 1221	2h 39m Atlanta	ATL 11:21 → PHL 13:24DL 2279	6h 46m	96%	80%
United Details →	MKE 05:00 → ORD 05:59UA 5799 · flown by SkyWest	1h 16m Chicago	ORD 07:15 → PHL 10:30UA 2038	4h 30m	89%	77%
American Details →	MKE 05:02 → ORD 06:14AA 6358 · flown by SkyWest	2h 15m Chicago	ORD 08:29 → PHL 11:41AA 471	5h 39m	96%	75%
Delta Details →	MKE 15:58 → MSP 17:15DL 2006	3h 10m Minneapolis	MSP 20:25 → PHL 23:56DL 2703	6h 59m	98%	73%
American Details →	MKE 07:01 → CLT 10:07AA 2866	2h 55m Charlotte	CLT 13:02 → PHL 14:50AA 2573	6h 49m	97%	72%
Tight connection: often missed
Delta Details →	MKE 18:40 → ATL 21:52DL 1206	1h 03m Atlanta	ATL 22:55 → PHL 00:59 +1DL 2642	5h 20m	75%	56%
American Details →	MKE 18:17 → CLT 21:28AA 2846	1h 01m Charlotte	CLT 22:29 → PHL 00:17 +1AA 2189	5h 00m	67%	46%
American Details →	MKE 18:55 → ORD 20:29AA 6211 · flown by SkyWest	1h 13m Chicago	ORD 21:42 → PHL 00:55 +1AA 490	5h 01m	60%	26%

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

MDW · 1h 05m · leaves 05:45 2%

BNA · 1h 05m · leaves 07:40 5%

STL · 58m · leaves 07:42 9%

Afternoon and evening

CLT · 1h 01m · leaves 18:17 33%

ORD · 1h 13m · leaves 18:55 40%

MDW · 50m · leaves 17:15 72%

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 1236 MKE 06:50 → ATL American AA 4338 ATL 12:25 → PHL Connection details →	2h 25m	6h 46m	94%	87%
Southwest WN 2327 MKE 07:42 → STL American AA 2720 STL 11:16 → PHL Connection details →	2h 14m	5h 53m	94%	85%
American AA 6358 MKE 05:02 → ORD United UA 2752 ORD 09:06 → PHL Connection details →	2h 52m	6h 23m	96%	74%

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