Sun, Oct 4 has passed, so this is the 12-month record.

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 31% of the time at 7 pm.

Nonstops (seasonal or thin)


Southwest	IND	SAN	4h 30m	76%	0.0%	276	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 3 h behind Indianapolis). Layovers up to 4 hours. Pick a connection for the details.


United Details →	IND 05:35 → IAD 07:19UA 6210 · flown by Mesa	1h 07m Dulles	IAD 08:26 → SAN 10:49UA 1930	8h 14m	97%	91%
Delta Details →	IND 17:25 → LAX 18:49DL 861	3h 51m Los Angeles	LAX 22:40 → SAN 23:40DL 3746 · flown by SkyWest	9h 15m	99%	85%
Delta Details →	IND 08:05 → ATL 09:44DL 1901	2h 09m Atlanta	ATL 11:53 → SAN 13:21DL 540	8h 16m	99%	85%
Southwest Details →	IND 06:10 → DEN 06:50WN 1365	1h 25m Denver	DEN 08:15 → SAN 09:40WN 1699	6h 30m	96%	83%
United Details →	IND 07:00 → IAH 08:28UA 2358	3h 32m Houston	IAH 12:00 → SAN 13:21UA 2399	9h 21m	99%	82%
United Details →	IND 06:00 → ORD 06:20UA 3479 · flown by Republic	2h 26m Chicago	ORD 08:46 → SAN 11:21UA 660	8h 21m	98%	81%
Delta Details →	IND 07:40 → SLC 09:15DL 2137	2h 00m Salt Lake City	SLC 11:15 → SAN 12:17DL 1296	7h 37m	99%	81%
United Details →	IND 08:00 → DEN 08:51UA 1607	2h 24m Denver	DEN 11:15 → SAN 12:41UA 1940	7h 41m	98%	80%
Tight connection: often missed
Delta Details →	IND 17:15 → JFK 19:39DL 4984 · flown by Endeavor	50m New York	JFK 20:29 → SAN 23:39DL 685	9h 24m	72%	48%
American Details →	IND 18:41 → PHX 19:23AA 3078	57m Phoenix	PHX 20:20 → SAN 21:34AA 559	5h 53m	66%	41%
American Details →	IND 11:05 → DFW 12:27AA 1948	53m Dallas-Fort Worth	DFW 13:20 → SAN 14:17AA 2459	6h 12m	69%	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

HOU · 1h 10m · leaves 05:20 2%

IAD · 1h 07m · leaves 05:35 3%

PHX · 55m · leaves 06:20 6%

Afternoon and evening

DFW · 1h 11m · leaves 20:19 37%

LAS · 50m · leaves 16:20 43%

SFO · 55m · leaves 19:59 80%

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.


Southwest WN 2118 IND 09:35 → DEN United UA 1302 DEN 13:30 → SAN Connection details →	3h 15m	8h 20m	100%	87%
Southwest WN 2119 IND 13:10 → DEN United UA 1281 DEN 15:55 → SAN Connection details →	2h 05m	7h 10m	95%	81%
American AA 4362 IND 05:36 → ORD United UA 660 ORD 08:46 → SAN Connection details →	2h 46m	8h 45m	99%	80%

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