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 75-minute layover misses 2% of the time at 8 am and 18% of the time at 8 pm.

Nonstops


United	SFO	BNA	4h 28m	80%	0.5%	847	Flying now
Southwest	SFO	BNA	4h 15m	58%	0.3%	311	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SFO 23:30 → ORD 05:57UA 368	2h 43m Chicago	ORD 08:40 → BNA 10:34 +1UA 5304 · flown by SkyWest	9h 04m	100%	89%
United Details →	SFO 21:30 → IAD 05:53UA 357	2h 37m Dulles	IAD 08:30 → BNA 09:29 +1UA 1366	9h 59m	100%	89%
Delta Details →	SFO 23:59 → ATL 07:42DL 690	3h 39m Atlanta	ATL 11:21 → BNA 11:33 +1DL 2867	9h 34m	99%	87%
Delta Details →	SFO 22:59 → ATL 06:40DL 495	3h 12m Atlanta	ATL 09:52 → BNA 10:06 +1DL 1155	9h 06m	99%	86%
Southwest Details →	SFO 18:10 → SAN 19:45WN 4681	2h 55m San Diego	SAN 22:40 → BNA 04:45 +1WN 3480	8h 35m	94%	85%
Delta Details →	SFO 06:00 → MSP 11:35DL 2178	1h 20m Minneapolis	MSP 12:55 → BNA 15:00DL 2843	7h 00m	96%	84%
Delta Details →	SFO 21:56 → ATL 05:37DL 517	2h 54m Atlanta	ATL 08:31 → BNA 08:43 +1DL 3069	8h 47m	96%	84%
American Details →	SFO 23:08 → ORD 05:29AA 2554	3h 00m Chicago	ORD 08:29 → BNA 10:11 +1AA 3439 · flown by Envoy	9h 04m	99%	84%
Tight connection: often missed
United Details →	SFO 12:43 → DEN 16:35UA 540	55m Denver	DEN 17:30 → BNA 21:13UA 1300	6h 30m	71%	52%
American Details →	SFO 11:24 → DFW 17:14AA 1849	1h 04m Dallas-Fort Worth	DFW 18:18 → BNA 20:17AA 1076	6h 53m	54%	32%
United Details →	SFO 12:00 → ORD 18:35UA 2317	1h 22m Chicago	ORD 19:57 → BNA 21:45UA 2063	7h 45m	68%	32%

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

DEN · 1h 15m · leaves 05:00 2%

SEA · 1h 19m · leaves 05:55 2%

IAH · 1h 00m · leaves 05:00 3%

Afternoon and evening

PHL · 47m · leaves 08:18 34%

DFW · 1h 04m · leaves 11:24 46%

DAL · 53m · leaves 15:10 84%

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.


United UA 298 SFO 19:45 → LAX American AA 2149 LAX 23:59 → BNA Connection details →	2h 30m	8h 23m	100%	90%
United UA 1603 SFO 21:20 → ATL Delta DL 3069 ATL 08:31 → BNA Connection details →	3h 11m	9h 23m	98%	88%
United UA 1965 SFO 23:59 → RDU Southwest WN 684 RDU 10:40 → BNA Connection details →	2h 19m	9h 16m	94%	86%

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