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 15% of the time at 6 am and 31% of the time at 7 pm.

Best connections, any airlines

Ranked by chance you reach West Palm Beach on time. Total trip = scheduled departure to arrival, layover included (West Palm Beach is 3 h ahead of San Francisco). Layovers up to 4 hours. Pick a connection for the details.


United + Deltatwo ticketsDetails →	SFO 21:30 → DTW 05:20UA 234	3h 05m Detroit	DTW 08:25 → PBI 11:28 +1DL 2926	10h 55m	100%	96%
Southwest Details →	SFO 21:10 → BWI 05:25WN 2683	2h 50m Baltimore	BWI 08:15 → PBI 10:50 +1WN 1041	10h 40m	98%	88%
American Details →	SFO 23:08 → ORD 05:29AA 2554	2h 40m Chicago	ORD 08:09 → PBI 12:12 +1AA 2269	10h 05m	99%	85%
United + Deltatwo ticketsDetails →	SFO 21:20 → ATL 05:20UA 1603	2h 45m Atlanta	ATL 08:05 → PBI 09:58 +1DL 1311	9h 38m	97%	85%
United Details →	SFO 21:15 → EWR 05:51UA 698	3h 15m Newark	EWR 09:06 → PBI 12:06 +1UA 2018	11h 51m	98%	85%
American Details →	SFO 23:49 → CLT 08:05AA 1580	2h 59m Charlotte	CLT 11:04 → PBI 12:58 +1AA 2279	10h 09m	100%	83%
American Details →	SFO 21:10 → PHL 05:43AA 2045	3h 07m Philadelphia	PHL 08:50 → PBI 11:39 +1AA 2271	11h 28m	99%	81%
Delta Details →	SFO 22:59 → ATL 06:40DL 495	3h 10m Atlanta	ATL 09:50 → PBI 11:46 +1DL 1527	9h 47m	99%	80%
Tight connection: often missed
Delta Details →	SFO 23:56 → DTW 07:27DL 976	58m Detroit	DTW 08:25 → PBI 11:28 +1DL 2926	8h 29m	46%	43%
JetBlue Details →	SFO 10:25 → BOS 19:12B6 1734	58m Boston	BOS 20:10 → PBI 22:55B6 2421	10h 05m	69%	38%

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

CLT · 1h 10m · leaves 22:05 14%

EWR · 1h 04m · leaves 21:15 15%

JFK · 1h 08m · leaves 20:35 24%

Afternoon and evening

ATL · 1h 10m · leaves 14:00 16%

CLT · 1h 12m · leaves 13:20 16%

BOS · 58m · leaves 10:25 31%

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