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 14% of the time at 8 am and 2 times in 3 at 9 pm.

Nonstops


United	DEN	FAT	2h 45m	84%	0.0%	1,092	Flying now
Southwest	DEN	FAT	2h 25m	75%	0.3%	360	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Southwest Details →	DEN 05:45 → LAS 06:40WN 3106	2h 55m Las Vegas	LAS 09:35 → FAT 10:55WN 1423	6h 10m	100%	90%
United Details →	DEN 06:04 → LAX 07:34UA 1093	2h 36m Los Angeles	LAX 10:10 → FAT 11:31UA 5299 · flown by SkyWest	6h 27m	100%	89%
Delta Details →	DEN 05:40 → SLC 07:13DL 2544	3h 42m Salt Lake City	SLC 10:55 → FAT 11:53DL 3768 · flown by SkyWest	7h 13m	97%	89%
Delta Details →	DEN 15:55 → SLC 17:34DL 1623	2h 56m Salt Lake City	SLC 20:30 → FAT 21:22DL 3774 · flown by SkyWest	6h 27m	96%	89%
Delta Details →	DEN 12:45 → SLC 14:18DL 1553	1h 25m Salt Lake City	SLC 15:43 → FAT 16:33DL 3777 · flown by SkyWest	4h 50m	93%	87%
American Details →	DEN 07:13 → PHX 08:08AA 1404	2h 13m Phoenix	PHX 10:21 → FAT 12:01AA 1831	5h 48m	94%	84%
United Details →	DEN 05:15 → SFO 06:53UA 2367	1h 27m San Francisco	SFO 08:20 → FAT 09:39UA 5942 · flown by SkyWest	5h 24m	98%	84%
American Details →	DEN 12:15 → PHX 13:08AA 1757	1h 18m Phoenix	PHX 14:26 → FAT 16:08AA 4091 · flown by Envoy	4h 54m	89%	79%
Tight connection: often missed
American Details →	DEN 18:56 → PHX 19:52AA 1638	1h 39m Phoenix	PHX 21:31 → FAT 23:07AA 3174	5h 11m	71%	39%
American Details →	DEN 18:10 → DFW 21:18AA 1322	49m Dallas-Fort Worth	DFW 22:07 → FAT 23:27AA 3091	6h 18m	32%	13%
Southwest Details →	DEN 19:15 → SAN 20:40WN 1703	1h 05m San Diego	SAN 21:45 → FAT 23:05WN 948	4h 50m	21%	11%

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

SAN · 1h 10m · leaves 06:00 4%

LAS · 1h 00m · leaves 07:40 12%

DFW · 52m · leaves 05:00 14%

Afternoon and evening

LAS · 1h 20m · leaves 20:35 46%

DFW · 49m · leaves 18:10 68%

SAN · 1h 05m · leaves 19:15 79%

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 4027 DEN 10:05 → SLC Delta DL 3777 SLC 15:43 → FAT Connection details →	3h 58m	7h 30m	100%	94%
Frontier F9 3219 DEN 06:00 → SLC Delta DL 3768 SLC 10:55 → FAT Connection details →	3h 24m	6h 53m	99%	90%
Southwest WN 706 DEN 11:00 → PHX American AA 4091 PHX 14:26 → FAT Connection details →	2h 36m	6h 09m	100%	89%

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