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 5% of the time at 8 am and 38% of the time at 7 pm.

Nonstops


United	DEN	FCA	2h 18m	83%	0.5%	1,010	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	DEN 05:40 → SLC 07:13DL 2544	3h 37m Salt Lake City	SLC 10:50 → FCA 12:47DL 3804 · flown by SkyWest	7h 07m	97%	92%
Delta Details →	DEN 07:05 → SLC 08:36DL 1581	1h 04m Salt Lake City	SLC 09:40 → FCA 11:28DL 2813	4h 23m	93%	88%
Alaska Details →	DEN 08:00 → PDX 09:46AS 1626	1h 20m Portland	PDX 11:06 → FCA 13:30AS 2044 · flown by Horizon	5h 30m	96%	88%
United Details →	DEN 06:04 → LAX 07:34UA 1093	54m Los Angeles	LAX 08:28 → FCA 12:27UA 5728 · flown by SkyWest	6h 23m	95%	87%
Alaska Details →	DEN 06:00 → SAN 07:34AS 1617	49m San Diego	SAN 08:23 → FCA 12:30AS 2186 · flown by Horizon	6h 30m	90%	85%
Delta Details →	DEN 12:45 → SLC 14:18DL 1553	1h 23m Salt Lake City	SLC 15:41 → FCA 17:30DL 3798 · flown by SkyWest	4h 45m	93%	82%
Delta Details →	DEN 16:05 → MSP 19:15DL 2271	2h 25m Minneapolis	MSP 21:40 → FCA 23:38DL 1602	7h 33m	97%	82%
Delta Details →	DEN 15:55 → SLC 17:34DL 1623	3h 36m Salt Lake City	SLC 21:10 → FCA 22:55DL 1464	7h 00m	97%	81%
Tight connection: often missed
United Details →	DEN 15:01 → ORD 18:46UA 1023	1h 01m Chicago	ORD 19:47 → FCA 22:55UA 6021 · flown by SkyWest	7h 54m	62%	39%

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 20m · leaves 08:00 4%

LAX · 54m · leaves 06:04 5%

SLC · 1h 04m · leaves 07:05 7%

Afternoon and evening

SEA · 1h 18m · leaves 18:15 22%

ORD · 1h 01m · leaves 15:01 38%

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.


Frontier F9 3219 DEN 06:00 → SLC Delta DL 3804 SLC 10:50 → FCA Connection details →	3h 19m	6h 47m	98%	93%
Southwest WN 4027 DEN 10:05 → SLC Delta DL 3798 SLC 15:41 → FCA Connection details →	3h 56m	7h 25m	100%	90%
Southwest WN 1639 DEN 15:25 → MSP Delta DL 1602 MSP 21:40 → FCA Connection details →	3h 20m	8h 13m	100%	85%

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