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 8 am and 36% of the time at 9 pm.

Nonstops


United	ATL	SFO	5h 29m	78%	0.5%	637	Flying now
Delta	ATL	SFO	5h 02m	70%	0.7%	2,409	Flying now
Frontier	ATL	SFO	5h 43m	66%	1.3%	306	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 Atlanta). Layovers up to 4 hours. Pick a connection for the details.


United Details →	ATL 05:30 → IAD 07:20UA 641	1h 15m Dulles	IAD 08:35 → SFO 11:19UA 1147	8h 49m	98%	82%
United Details →	ATL 09:25 → IAD 11:15UA 632	3h 36m Dulles	IAD 14:51 → SFO 17:38UA 2862	11h 13m	100%	81%
United Details →	ATL 11:37 → IAH 12:47UA 425	2h 43m Houston	IAH 15:30 → SFO 17:35UA 589	8h 58m	98%	79%
American Details →	ATL 16:56 → LAX 18:44AA 2221	3h 48m Los Angeles	LAX 22:32 → SFO 23:59AA 6510 · flown by SkyWest	10h 03m	96%	78%
Delta Details →	ATL 09:55 → MSP 11:30DL 2090	3h 37m Minneapolis	MSP 15:07 → SFO 17:14DL 756	10h 18m	100%	74%
Delta Details →	ATL 09:40 → JFK 12:00DL 1034	2h 55m New York	JFK 14:55 → SFO 18:30DL 679	11h 50m	99%	73%
United Details →	ATL 11:10 → DEN 12:28UA 1327	3h 19m Denver	DEN 15:47 → SFO 17:30UA 2633	9h 20m	98%	72%
United Details →	ATL 18:57 → IAH 20:15UA 2376	1h 44m Houston	IAH 21:59 → SFO 00:05 +1UA 1609	8h 08m	89%	71%
Tight connection: often missed
Delta Details →	ATL 18:25 → SEA 20:49DL 714	56m Seattle	SEA 21:45 → SFO 00:06 +1DL 2635	8h 41m	64%	45%
Delta Details →	ATL 17:58 → LAX 19:39DL 500	46m Los Angeles	LAX 20:25 → SFO 21:49DL 2197	6h 52m	60%	27%
American Details →	ATL 18:13 → PHX 19:25AA 3012	58m Phoenix	PHX 20:23 → SFO 22:23AA 686	7h 10m	43%	20%

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 15m · leaves 05:30 2%

IAH · 1h 20m · leaves 07:05 5%

JFK · 1h 15m · leaves 07:44 6%

Afternoon and evening

CLT · 53m · leaves 15:06 51%

PHX · 58m · leaves 18:13 57%

MDW · 1h 00m · leaves 19:35 69%

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 895 ATL 12:35 → LAX United UA 233 LAX 17:10 → SFO Connection details →	2h 55m	9h 03m	98%	81%
Frontier F9 3512 ATL 05:05 → BOS United UA 1074 BOS 11:35 → SFO Connection details →	3h 43m	12h 57m	98%	77%
Delta DL 500 ATL 17:58 → LAX American AA 6510 LAX 22:32 → SFO Connection details →	2h 53m	9h 01m	96%	77%

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