Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No nonstop, and no clear pattern: the best connection reaches Missoula on time 9 times in 10.

Nonstops (seasonal or thin)


Alaska	SAN	MSO	2h 48m	76%few flights	0.0%	25	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Missoula on time. Total trip = scheduled departure to arrival, layover included (Missoula is 1 h ahead of San Diego). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	SAN 06:15 → SLC 09:22DL 1117	1h 31m Salt Lake City	SLC 10:53 → MSO 12:37DL 4112 · flown by SkyWest	5h 22m	98%	91%
Delta Details →	SAN 09:47 → SLC 12:50DL 1177	3h 20m Salt Lake City	SLC 16:10 → MSO 17:49DL 3808 · flown by SkyWest	7h 02m	99%	90%
United Details →	SAN 06:35 → DEN 10:08UA 2368	1h 07m Denver	DEN 11:15 → MSO 13:19UA 1342	5h 44m	98%	89%
Delta Details →	SAN 17:01 → SLC 20:00DL 1210	2h 55m Salt Lake City	SLC 22:55 → MSO 00:28 +1DL 1723	6h 27m	99%	82%
United Details →	SAN 08:45 → DEN 12:17UA 2476	1h 43m Denver	DEN 14:00 → MSO 16:20UA 4783 · flown by SkyWest	6h 35m	94%	81%
Alaska Details →	SAN 08:40 → SEA 11:44AS 753	1h 54m Seattle	SEA 13:38 → MSO 16:09AS 697	6h 29m	97%	78%
Alaska Details →	SAN 13:59 → SEA 16:58AS 465	3h 32m Seattle	SEA 20:30 → MSO 22:55AS 2154 · flown by Horizon	7h 56m	100%	77%
United Details →	SAN 12:33 → DEN 16:06UA 1565	3h 24m Denver	DEN 19:30 → MSO 21:39UA 1092	8h 06m	98%	75%
Tight connection: often missed
American Details →	SAN 13:55 → DFW 19:15AA 2456	51m Dallas-Fort Worth	DFW 20:06 → MSO 22:40AA 4063 · flown by Envoy	7h 45m	60%	42%
United Details →	SAN 09:26 → SFO 11:12UA 1113	1h 03m San Francisco	SFO 12:15 → MSO 15:38UA 5422 · flown by SkyWest	5h 12m	71%	41%
Alaska Details →	SAN 17:35 → SEA 20:35AS 417	52m Seattle	SEA 21:27 → MSO 23:56AS 560	5h 21m	50%	36%

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 07m · leaves 06:35 2%

Afternoon and evening

MSP · 55m · leaves 15:19 19%

DFW · 51m · leaves 13:55 40%

SEA · 52m · leaves 17:35 50%

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.


Alaska AS 1618 SAN 07:00 → DEN United UA 4783 DEN 14:00 → MSO Connection details →	3h 27m	8h 20m	100%	86%
Alaska AS 3488 SAN 15:54 → SLC Delta DL 1723 SLC 22:55 → MSO Connection details →	3h 53m	7h 34m	99%	82%
Delta DL 2530 SAN 07:00 → SEA Alaska AS 697 SEA 13:38 → MSO Connection details →	3h 33m	8h 09m	98%	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