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 11 am and 27% of the time at 4 pm.

Nonstops (seasonal or thin)


American	PHL	EYW	3h 25m	85%	2.8%	493	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


American Details →	PHL 06:00 → MIA 08:56AA 1252	59m Miami	MIA 09:55 → EYW 10:55AA 3515 · flown by Envoy	4h 55m	89%	86%
American Details →	PHL 11:30 → MIA 14:30AA 3302	3h 41m Miami	MIA 18:11 → EYW 19:10AA 3517 · flown by Envoy	7h 42m	99%	84%
Delta Details →	PHL 05:15 → ATL 07:22DL 1269	1h 44m Atlanta	ATL 09:06 → EYW 11:00DL 1281	5h 47m	97%	83%
Delta Details →	PHL 06:25 → ATL 08:32DL 1152	2h 59m Atlanta	ATL 11:31 → EYW 13:28DL 1472	6h 59m	99%	83%
United Details →	PHL 06:00 → ORD 07:30UA 660	3h 25m Chicago	ORD 10:55 → EYW 15:19UA 3690 · flown by Republic	9h 19m	100%	82%
Frontier + Americantwo ticketsDetails →	PHL 08:00 → CLT 09:56F9 2387	3h 54m Charlotte	CLT 13:50 → EYW 16:11AA 3519 · flown by Envoy	8h 11m	97%	82%
American Details →	PHL 08:15 → MIA 11:12AA 2184	58m Miami	MIA 12:10 → EYW 13:14AA 3518 · flown by Envoy	4h 59m	89%	79%
Delta Details →	PHL 10:40 → ATL 12:54DL 1100	2h 31m Atlanta	ATL 15:25 → EYW 17:23DL 2168	6h 43m	99%	75%
Tight connection: often missed
American Details →	PHL 13:49 → CLT 15:45AA 793	47m Charlotte	CLT 16:32 → EYW 18:48AA 2533	4h 59m	73%	42%
American Details →	PHL 09:07 → DFW 11:45AA 812	1h 17m Dallas-Fort Worth	DFW 13:02 → EYW 16:54AA 1814	7h 47m	72%	39%

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

ATL · 1h 19m · leaves 08:05 9%

MIA · 58m · leaves 08:15 11%

DFW · 1h 04m · leaves 09:15 19%

Afternoon and evening

ATL · 1h 16m · leaves 14:32 10%

CLT · 47m · leaves 13:49 27%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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