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 9 am and 37% of the time at 7 pm.

Nonstops (seasonal or thin)


Southwest	CMH	LAS	4h 25m	80%	0.5%	838	Flying now
Spirit	CMH	LAS	4h 26m	83%	0.0%	60	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 3 h behind Columbus). Layovers up to 4 hours. Pick a connection for the details.


American Details →	CMH 05:08 → MIA 07:51AA 3662 · flown by Envoy	1h 34m Miami	MIA 09:25 → LAS 11:41AA 2010	9h 33m	100%	93%
Southwest Details →	CMH 05:45 → BWI 07:05WN 4376	2h 30m Baltimore	BWI 09:35 → LAS 11:35WN 974	8h 50m	100%	91%
United Details →	CMH 05:30 → ORD 06:09UA 3524 · flown by Republic	1h 02m Chicago	ORD 07:11 → LAS 09:19UA 574	6h 49m	95%	91%
Southwest Details →	CMH 05:10 → MCO 07:20WN 1193	2h 40m Orlando	MCO 10:00 → LAS 11:45WN 4696	9h 35m	100%	88%
United Details →	CMH 07:00 → ORD 07:39UA 3429 · flown by Republic	3h 21m Chicago	ORD 11:00 → LAS 13:05UA 2440	9h 05m	98%	86%
United Details →	CMH 06:30 → IAH 08:16UA 2205	3h 39m Houston	IAH 11:55 → LAS 13:13UA 1524	9h 43m	98%	85%
United Details →	CMH 06:40 → EWR 08:33UA 3458 · flown by Republic	3h 52m Newark	EWR 12:25 → LAS 14:53UA 1864	11h 13m	99%	82%
American Details →	CMH 06:09 → CLT 07:39AA 3206	3h 47m Charlotte	CLT 11:26 → LAS 13:06AA 2038	9h 57m	99%	82%
Tight connection: often missed
United Details →	CMH 14:19 → ORD 14:55UA 493	59m Chicago	ORD 15:54 → LAS 17:57UA 1875	6h 38m	71%	53%
American Details →	CMH 15:44 → CLT 17:31AA 5134 · flown by PSA	59m Charlotte	CLT 18:30 → LAS 20:17AA 596	7h 33m	71%	48%
Delta Details →	CMH 18:37 → ATL 20:34DL 2280	46m Atlanta	ATL 21:20 → LAS 22:39DL 825	7h 02m	55%	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

DTW · 1h 20m · leaves 06:30 3%

MSP · 1h 10m · leaves 07:00 4%

EWR · 1h 20m · leaves 09:12 5%

Afternoon and evening

EWR · 59m · leaves 17:00 37%

STL · 50m · leaves 20:35 45%

ATL · 46m · leaves 18:37 45%

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 1193 CMH 05:10 → MCO Frontier F9 1875 MCO 09:19 → LAS Connection details →	1h 59m	9h 19m	100%	89%
American AA 4487 CMH 05:30 → ORD United UA 723 ORD 09:00 → LAS Connection details →	3h 00m	8h 38m	100%	86%
American AA 4041 CMH 06:49 → ORD United UA 2440 ORD 11:00 → LAS Connection details →	3h 30m	9h 16m	97%	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