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

No clear winner: airlines and hours on this route all land within a few points of 83% on time.

Nonstops


Southwest	FAT	LAS	1h 20m	86%	0.3%	1,070	Flying now
Allegiant	FAT	LAS	1h 14m	78%	0.6%	644	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Las Vegas on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	FAT 17:35 → SAN 18:50WN 1845	3h 50m San Diego	SAN 22:40 → LAS 00:12 +1WN 3510	6h 37m	98%	90%
American Details →	FAT 06:15 → PHX 08:01AA 6275 · flown by SkyWest	2h 23m Phoenix	PHX 10:24 → LAS 11:37AA 2037	5h 22m	93%	84%
United Details →	FAT 18:09 → LAX 19:32UA 5759 · flown by SkyWest	3h 27m Los Angeles	LAX 22:59 → LAS 00:21 +1UA 1546	6h 12m	97%	82%
United Details →	FAT 05:00 → DEN 08:22UA 1774	3h 00m Denver	DEN 11:22 → LAS 12:24UA 526	7h 24m	99%	82%
Alaska Details →	FAT 07:00 → SEA 09:22AS 3219 · flown by SkyWest	2h 09m Seattle	SEA 11:31 → LAS 14:16AS 738	7h 16m	100%	80%
United Details →	FAT 13:58 → LAX 15:23UA 5307 · flown by SkyWest	3h 36m Los Angeles	LAX 18:59 → LAS 20:21UA 679	6h 23m	98%	80%
Alaska Details →	FAT 07:30 → PDX 09:27AS 3487 · flown by SkyWest	1h 18m Portland	PDX 10:45 → LAS 13:11AS 757	5h 41m	95%	79%
Delta Details →	FAT 17:13 → SLC 20:00DL 3777 · flown by SkyWest	3h 14m Salt Lake City	SLC 23:14 → LAS 23:40DL 1662	6h 31m	99%	78%
Tight connection: often missed
American Details →	FAT 15:03 → DFW 20:30AA 1827	1h 04m Dallas-Fort Worth	DFW 21:34 → LAS 22:25AA 2872	7h 22m	42%	16%
Southwest Details →	FAT 17:35 → SAN 18:50WN 1845	1h 15m San Diego	SAN 20:05 → LAS 21:30WN 1169	3h 55m	40%	8%

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

PDX · 1h 18m · leaves 07:30 5%

DFW · 1h 19m · leaves 05:41 6%

SFO · 1h 08m · leaves 06:30 14%

Afternoon and evening

DFW · 1h 04m · leaves 15:03 58%

SAN · 1h 15m · leaves 17:35 60%

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 1774 FAT 05:00 → DEN Southwest WN 1561 DEN 11:00 → LAS Connection details →	2h 38m	6h 55m	98%	81%
Alaska AS 2210 FAT 10:42 → SAN Delta DL 3751 SAN 15:51 → LAS Connection details →	3h 53m	6h 44m	98%	79%
Alaska AS 3219 FAT 07:00 → SEA Delta DL 2880 SEA 11:05 → LAS Connection details →	1h 43m	6h 39m	97%	78%

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