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 3% of the time at 9 am and 58% of the time at 4 pm.

Nonstops


Southwest	SJC	DAL	3h 25m	85%	0.9%	427	Flying now
American	SJC	DFW	3h 36m	82%	2.1%	1,095	Flying now
Southwest	OAK	DAL	3h 25m	78%	1.0%	417	Flying now
United	SFO	DFW	3h 43m	77%	0.5%	911	Flying now
American	SFO	DFW	3h 35m	73%	2.8%	3,071	Flying now
Frontier	SFO	DFW	3h 41m	61%	4.5%	198	Flying now
Southwest	SFO	DAL	3h 35m	25%	0.7%	149	Flying now
Spirit	SJC	DFW	–	86%few flights	0.0%	7	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Dallas on time. Total trip = scheduled departure to arrival, layover included (Dallas-Fort Worth is 2 h ahead of San Francisco). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	OAK 05:10 → PHX 07:05WN 3066	1h 10m Phoenix	PHX 08:15 → DAL 12:40WN 875	5h 30m	98%	91%
United Details →	SFO 05:00 → DEN 08:35UA 1479	1h 05m Denver	DEN 09:40 → DFW 12:48UA 355	5h 48m	97%	91%
Delta Details →	SFO 22:59 → ATL 06:40DL 495	3h 35m Atlanta	ATL 10:15 → DAL 11:24 +1DL 1115	10h 25m	100%	90%
Delta Details →	SJC 22:00 → ATL 05:34DL 2136	2h 38m Atlanta	ATL 08:12 → DAL 09:24 +1DL 441	9h 26m	98%	86%
Southwest Details →	SJC 06:22 → LGB 07:42WN 4933	1h 48m Long Beach	LGB 09:30 → DAL 14:30WN 264	6h 08m	100%	85%
Southwest Details →	SJC 21:40 → BWI 05:45WN 621	2h 30m Baltimore	BWI 08:15 → DAL 10:25 +1WN 930	10h 45m	100%	85%
American Details →	SFO 05:50 → PHX 08:01AA 6404 · flown by SkyWest	2h 30m Phoenix	PHX 10:31 → DFW 15:10AA 3284	7h 20m	99%	84%
Delta Details →	SJC 09:55 → LAX 11:20DL 4451 · flown by SkyWest	2h 30m Los Angeles	LAX 13:50 → DFW 19:04DL 948	7h 09m	98%	84%
Tight connection: often missed
American Details →	SFO 16:04 → LAX 17:45AA 6221 · flown by SkyWest	1h 00m Los Angeles	LAX 18:45 → DFW 23:53AA 1669	5h 49m	47%	30%
American Details →	SFO 13:39 → LAX 15:19AA 6188 · flown by SkyWest	57m Los Angeles	LAX 16:16 → DFW 21:33AA 2024	5h 55m	42%	21%
Southwest Details →	OAK 13:25 → DEN 16:50WN 3043	1h 00m Denver	DEN 17:50 → DAL 21:00WN 1521	5h 35m	39%	15%

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

BUR · 1h 20m · leaves 09:15 0%

PDX · 1h 01m · leaves 08:00 0%

PHX · 1h 10m · leaves 05:10 2%

Afternoon and evening

PHX · 56m · leaves 15:52 53%

LAX · 57m · leaves 13:39 58%

DEN · 55m · leaves 14:35 93%

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.


Frontier F9 3440 SFO 21:39 → DEN Southwest WN 1078 DEN 05:10 → DAL Connection details →	3h 36m	8h 26m	94%	90%
United UA 5579 SFO 22:59 → SEA American AA 2748 SEA 05:05 → DFW Connection details →	3h 36m	10h 03m	98%	88%
United UA 1807 SFO 23:59 → AUS American AA 3401 AUS 08:40 → DFW Connection details →	2h 54m	7h 59m	100%	87%

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