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 90-minute layover misses 2% of the time at 9 am and 29% of the time at 8 pm.

Nonstops


Frontier	DFW	SAN	3h 24m	66%	2.0%	254	Flying now
American	DFW	SAN	3h 12m	65%	2.8%	3,213	Flying now
Alaska	DFW	SAN	3h 14m	57%	0.5%	202	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	DFW 08:45 → DEN 10:06UA 644	3h 24m Denver	DEN 13:30 → SAN 14:55UA 1302	8h 10m	100%	86%
United Details →	DFW 05:10 → IAH 06:22UA 2260	3h 08m Houston	IAH 09:30 → SAN 10:51UA 2491	7h 41m	99%	83%
United Details →	DFW 11:35 → DEN 12:45UA 2049	3h 10m Denver	DEN 15:55 → SAN 17:20UA 1281	7h 45m	97%	82%
Delta Details →	DFW 13:45 → LAX 14:58DL 521	3h 17m Los Angeles	LAX 18:15 → SAN 19:16DL 4087 · flown by SkyWest	7h 31m	100%	82%
United Details →	DFW 05:45 → DEN 06:53UA 773	50m Denver	DEN 07:43 → SAN 09:05UA 2309	5h 20m	92%	81%
Delta Details →	DFW 12:30 → SLC 14:25DL 2798	2h 45m Salt Lake City	SLC 17:10 → SAN 18:06DL 1252	7h 36m	98%	80%
United Details →	DFW 07:00 → IAH 08:26UA 2670	3h 34m Houston	IAH 12:00 → SAN 13:21UA 2399	8h 21m	99%	80%
Delta Details →	DFW 06:55 → ATL 10:09DL 893	1h 44m Atlanta	ATL 11:53 → SAN 13:21DL 540	8h 26m	95%	80%
Tight connection: often missed
Delta Details →	DFW 16:51 → ATL 20:19DL 2143	1h 09m Atlanta	ATL 21:28 → SAN 23:00DL 896	8h 09m	74%	54%
United Details →	DFW 16:50 → DEN 18:20UA 1303	1h 00m Denver	DEN 19:20 → SAN 20:46UA 540	5h 56m	59%	38%
American Details →	DFW 16:50 → ORD 19:44AA 2474	1h 26m Chicago	ORD 21:10 → SAN 23:26AA 2457	8h 36m	71%	29%

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 09m · leaves 08:45 7%

SEA · 1h 18m · leaves 06:24 10%

IAH · 57m · leaves 09:46 22%

Afternoon and evening

ATL · 1h 09m · leaves 16:51 26%

DEN · 1h 00m · leaves 16:50 41%

MSP · 47m · leaves 18:31 64%

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.


American AA 3390 DFW 06:00 → ATL Delta DL 540 ATL 11:53 → SAN Connection details →	2h 40m	9h 21m	100%	85%
Delta DL 521 DFW 13:45 → LAX United UA 5415 LAX 18:50 → SAN Connection details →	3h 52m	8h 06m	100%	83%
Frontier F9 2549 DFW 09:07 → DEN United UA 1302 DEN 13:30 → SAN Connection details →	3h 05m	7h 48m	98%	82%

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