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 6% of the time at 11 am and 18% of the time at 7 pm.

Nonstops (seasonal or thin)


United	PIT	SFO	5h 35m	82%	0.5%	555	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	PIT 06:06 → IAD 07:18UA 3679 · flown by Republic	1h 17m Dulles	IAD 08:35 → SFO 11:19UA 1147	8h 13m	99%	83%
United Details →	PIT 10:30 → IAD 11:42UA 6184 · flown by Mesa	3h 09m Dulles	IAD 14:51 → SFO 17:38UA 2862	10h 08m	100%	81%
United Details →	PIT 17:02 → IAH 19:05UA 1444	2h 54m Houston	IAH 21:59 → SFO 00:05 +1UA 1609	10h 03m	98%	78%
United Details →	PIT 08:30 → DEN 09:59UA 1765	3h 26m Denver	DEN 13:25 → SFO 15:09UA 1812	9h 39m	99%	75%
American Details →	PIT 05:35 → PHL 06:51AA 5487 · flown by PSA	1h 36m Philadelphia	PHL 08:27 → SFO 11:29AA 1524	8h 53m	95%	74%
Delta Details →	PIT 05:45 → ATL 07:25DL 1504	1h 00m Atlanta	ATL 08:25 → SFO 10:20DL 693	7h 40m	92%	73%
United Details →	PIT 13:05 → IAH 15:08UA 1964	1h 17m Houston	IAH 16:25 → SFO 18:30UA 382	8h 25m	100%	72%
United Details →	PIT 06:15 → IAH 08:18UA 1859	1h 17m Houston	IAH 09:35 → SFO 11:35UA 2358	8h 20m	98%	71%
Tight connection: often missed
Delta Details →	PIT 06:30 → DTW 07:44DL 5319 · flown by Endeavor	46m Detroit	DTW 08:30 → SFO 10:29DL 361	6h 57m	69%	49%
American Details →	PIT 17:05 → PHL 18:34AA 2312	1h 12m Philadelphia	PHL 19:46 → SFO 23:10AA 3166	9h 05m	70%	36%
American Details →	PIT 15:59 → ORD 16:50AA 555	1h 09m Chicago	ORD 17:59 → SFO 20:46AA 1620	7h 47m	65%	21%

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 17m · leaves 06:06 1%

IAH · 1h 17m · leaves 06:15 2%

EWR · 1h 07m · leaves 09:12 6%

Afternoon and evening

MSP · 49m · leaves 19:28 31%

ORD · 1h 09m · leaves 15:59 35%

MDW · 50m · leaves 20:10 42%

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 5690 PIT 06:05 → BOS United UA 1074 BOS 11:35 → SFO Connection details →	3h 34m	11h 57m	100%	79%
United UA 1349 PIT 17:55 → LAX American AA 6510 LAX 22:32 → SFO Connection details →	2h 25m	9h 04m	94%	76%
Southwest WN 3369 PIT 10:55 → DEN United UA 2633 DEN 15:47 → SFO Connection details →	3h 32m	9h 35m	100%	73%

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