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 2% of the time at 9 am and 15% of the time at 5 pm.

Nonstops


Southwest	MCI	LAS	3h 05m	81%	0.2%	1,745	Flying now
Frontier	MCI	LAS	3h 08m	75%few flights	0.0%	16	Flying now
Spirit	MCI	LAS	3h 05m	86%	2.4%	245	Not flying now
American	MCI	LAS	–	100%few flights	0.0%	2	Not 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 (Las Vegas is 2 h behind Kansas City). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	MCI 18:15 → SAN 19:35WN 4457	3h 05m San Diego	SAN 22:40 → LAS 00:12 +1WN 3510	7h 57m	100%	92%
Southwest Details →	MCI 05:50 → PHX 06:35WN 2578	55m Phoenix	PHX 07:30 → LAS 08:40WN 2336	4h 50m	95%	90%
American Details →	MCI 06:01 → PHX 06:50AA 2645	3h 34m Phoenix	PHX 10:24 → LAS 11:37AA 2037	7h 36m	98%	89%
United Details →	MCI 06:00 → DEN 06:56UA 355	1h 09m Denver	DEN 08:05 → LAS 09:07UA 2316	5h 07m	97%	89%
United Details →	MCI 06:16 → IAH 08:25UA 740	3h 30m Houston	IAH 11:55 → LAS 13:13UA 1524	8h 57m	98%	87%
United Details →	MCI 08:30 → IAH 10:38UA 2228	3h 42m Houston	IAH 14:20 → LAS 15:37UA 1971	9h 07m	100%	85%
Southwest Details →	MCI 05:00 → MCO 08:45WN 2209	1h 15m Orlando	MCO 10:00 → LAS 11:45WN 4696	8h 45m	96%	85%
Southwest Details →	MCI 05:10 → TPA 08:45WN 4796	1h 45m Tampa	TPA 10:30 → LAS 12:10WN 1809	9h 00m	100%	84%
Tight connection: often missed
American Details →	MCI 09:45 → DFW 11:30AA 2050	48m Dallas-Fort Worth	DFW 12:18 → LAS 13:06AA 777	5h 21m	60%	43%
United Details →	MCI 19:59 → SFO 21:50UA 1429	1h 09m San Francisco	SFO 22:59 → LAS 00:46 +1UA 2839	6h 47m	31%	18%
Southwest Details →	MCI 17:30 → BNA 19:05WN 4269	1h 03m Nashville	BNA 20:08 → LAS 22:02WN 548	6h 33m	33%	14%

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

ATL · 1h 11m · leaves 05:38 2%

DAL · 1h 15m · leaves 07:50 3%

DEN · 1h 09m · leaves 06:00 3%

Afternoon and evening

HOU · 55m · leaves 19:50 45%

BNA · 1h 03m · leaves 17:30 67%

SFO · 1h 09m · leaves 19:59 69%

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 2578 MCI 05:50 → PHX American AA 2037 PHX 10:24 → LAS Connection details →	3h 49m	7h 47m	100%	90%
Southwest WN 2546 MCI 06:55 → DEN United UA 526 DEN 11:22 → LAS Connection details →	3h 37m	7h 29m	100%	83%
Southwest WN 4828 MCI 14:25 → SMF Frontier F9 2070 SMF 18:28 → LAS Connection details →	2h 28m	7h 32m	96%	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