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 13% of the time at 9 am and 62% of the time at 8 pm.

Nonstops


United	ORD	PHL	2h 11m	74%	1.7%	1,814	Flying now
American	ORD	PHL	2h 05m	73%	4.0%	3,001	Flying now
Frontier	ORD	PHL	2h 27m	61%	4.7%	193	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 Chicago). Layovers up to 4 hours. Pick a connection for the details.


American Details →	ORD 07:05 → STL 08:31AA 4104 · flown by Envoy	2h 45m St Louis	STL 11:16 → PHL 14:36AA 2720	6h 30m	100%	90%
United Details →	ORD 06:30 → IAD 09:24UA 1689	3h 31m Dulles	IAD 12:55 → PHL 14:10UA 3541 · flown by Republic	6h 40m	100%	85%
American Details →	ORD 08:05 → MDT 11:11AA 4746 · flown by Republic	3h 14m Harrisburg	MDT 14:25 → PHL 15:26AA 5963 · flown by Piedmont	6h 21m	100%	83%
Delta Details →	ORD 06:30 → MSP 08:06DL 1717	3h 03m Minneapolis	MSP 11:09 → PHL 14:43DL 2679	7h 12m	97%	82%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	2h 48m Atlanta	ATL 11:21 → PHL 13:24DL 2279	6h 56m	98%	81%
American Details →	ORD 06:59 → MCO 10:47AA 2067	1h 15m Orlando	MCO 12:02 → PHL 14:39AA 2101	6h 40m	99%	81%
American Details →	ORD 07:30 → DTW 10:03AA 4103 · flown by Envoy	2h 55m Detroit	DTW 12:58 → PHL 14:40AA 5530 · flown by PSA	6h 09m	100%	80%
American Details →	ORD 06:00 → BOS 09:34AA 3022	3h 04m Boston	BOS 12:38 → PHL 14:16AA 3043	7h 16m	98%	80%
Tight connection: often missed
American Details →	ORD 16:05 → MIA 20:26AA 2910	1h 38m Miami	MIA 22:04 → PHL 00:55 +1AA 2188	7h 50m	65%	47%
American Details →	ORD 14:24 → MIA 18:39AA 3148	1h 16m Miami	MIA 19:55 → PHL 22:53AA 3061	7h 29m	64%	43%
American Details →	ORD 14:59 → DFW 17:36AA 2257	59m Dallas-Fort Worth	DFW 18:35 → PHL 22:57AA 3242	6h 58m	64%	28%

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

MCO · 1h 15m · leaves 06:59 1%

MEM · 1h 15m · leaves 08:06 3%

BOS · 1h 15m · leaves 06:00 3%

Afternoon and evening

IAD · 48m · leaves 18:12 59%

DFW · 51m · leaves 16:51 60%

MSP · 47m · leaves 17:57 62%

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 1247 ORD 06:35 → ATL American AA 4338 ATL 12:25 → PHL Connection details →	2h 44m	7h 01m	97%	90%
United UA 2232 ORD 07:00 → MSP Delta DL 2679 MSP 11:09 → PHL Connection details →	2h 28m	6h 42m	98%	83%
United UA 5958 ORD 07:05 → STL American AA 2720 STL 11:16 → PHL Connection details →	2h 37m	6h 30m	92%	83%

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