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 70-minute layover misses 4% of the time at 8 am and 1 time in 3 at 8 pm.

Nonstops (seasonal or thin)


United	TUS	SFO	2h 21m	71%	0.4%	945	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. Layovers up to 4 hours. Pick a connection for the details.


American Details →	TUS 17:40 → LAX 19:22AA 6372 · flown by SkyWest	3h 10m Los Angeles	LAX 22:32 → SFO 23:59AA 6510 · flown by SkyWest	6h 19m	96%	78%
Alaska Details →	TUS 10:31 → PDX 13:46AS 2216 · flown by Horizon	1h 03m Portland	PDX 14:49 → SFO 16:40AS 236	6h 09m	99%	73%
United Details →	TUS 05:45 → DEN 08:38UA 2418	2h 43m Denver	DEN 11:21 → SFO 13:04UA 1561	7h 19m	100%	72%
Delta Details →	TUS 12:27 → LAX 14:15DL 3744 · flown by SkyWest	3h 20m Los Angeles	LAX 17:35 → SFO 18:55DL 1559	6h 29m	100%	68%
Delta Details →	TUS 06:20 → LAX 08:04DL 3502 · flown by SkyWest	3h 56m Los Angeles	LAX 12:00 → SFO 13:26DL 2725	7h 08m	99%	66%
Delta Details →	TUS 16:30 → SLC 19:30DL 3737 · flown by SkyWest	3h 20m Salt Lake City	SLC 22:50 → SFO 23:52DL 1091	7h 26m	100%	66%
Alaska Details →	TUS 07:10 → SEA 10:37AS 3361 · flown by SkyWest	1h 05m Seattle	SEA 11:42 → SFO 14:04AS 655	6h 54m	93%	65%
Delta Details →	TUS 07:05 → SLC 10:11DL 3745 · flown by SkyWest	49m Salt Lake City	SLC 11:00 → SFO 12:08DL 902	5h 03m	96%	63%
Tight connection: often missed
American Details →	TUS 15:57 → DFW 20:29AA 584	1h 05m Dallas-Fort Worth	DFW 21:34 → SFO 23:18AA 2430	7h 21m	68%	28%
Southwest Details →	TUS 20:00 → LAS 21:25WN 1195	1h 30m Las Vegas	LAS 22:55 → SFO 00:32 +1WN 2784	4h 33m	69%	27%
Alaska Details →	TUS 14:29 → SEA 17:44AS 641	52m Seattle	SEA 18:36 → SFO 20:48AS 619	6h 19m	71%	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

LAX · 1h 16m · leaves 06:20 4%

SLC · 49m · leaves 07:05 4%

PHX · 1h 16m · leaves 08:39 6%

Afternoon and evening

LAX · 1h 13m · leaves 17:40 21%

SEA · 52m · leaves 14:29 29%

DFW · 1h 05m · leaves 15:57 32%

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 3744 TUS 12:27 → LAX United UA 233 LAX 17:10 → SFO Connection details →	2h 55m	6h 11m	100%	83%
Delta DL 3778 TUS 16:47 → LAX American AA 6510 LAX 22:32 → SFO Connection details →	3h 56m	7h 12m	100%	81%
Southwest WN 4059 TUS 06:12 → DEN United UA 1561 DEN 11:21 → SFO Connection details →	2h 19m	6h 52m	100%	72%

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