Sun, Oct 4 has passed, so this is the 12-month record.

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 75-minute layover misses 3% of the time at 8 am and 29% of the time at 7 pm.

Nonstops (seasonal or thin)


United	CMH	LAX	5h 05m	83%	0.0%	125	Flying now
American	CMH	LAX	5h 05m	76%	1.3%	305	Flying now
Delta	CMH	LAX	–	100%few flights	0.0%	2	Not flying now
Spirit	CMH	LAX	4h 59m	90%few flights	3.2%	31	Not flying now
Southwest	CMH	LAX	–	0%few flights	0.0%	1	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Los Angeles on time. Total trip = scheduled departure to arrival, layover included (Los Angeles is 3 h behind Columbus). Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	CMH 07:05 → ATL 08:42DL 2909	2h 48m Atlanta	ATL 11:30 → LAX 13:05DL 326	9h 03m	98%	90%
Southwest Details →	CMH 05:45 → DEN 06:50WN 1186	2h 45m Denver	DEN 09:35 → LAX 11:05WN 1569	8h 20m	98%	90%
United Details →	CMH 10:30 → IAD 11:54UA 4056 · flown by Mesa	3h 21m Dulles	IAD 15:15 → LAX 17:47UA 684	10h 17m	100%	89%
Alaska Details →	CMH 07:00 → SEA 09:07AS 283	3h 31m Seattle	SEA 12:38 → LAX 15:25AS 502	11h 25m	100%	88%
Southwest Details →	CMH 05:10 → MCO 07:20WN 1193	2h 00m Orlando	MCO 09:20 → LAX 11:25WN 4495	9h 15m	100%	88%
United Details →	CMH 09:00 → DEN 10:14UA 728	3h 12m Denver	DEN 13:26 → LAX 14:57UA 774	8h 57m	98%	87%
Delta Details →	CMH 06:00 → BOS 08:13DL 5663 · flown by Republic	2h 42m Boston	BOS 10:55 → LAX 14:07DL 2004	11h 07m	99%	87%
American Details →	CMH 05:08 → MIA 07:53AA 3845 · flown by Envoy	2h 02m Miami	MIA 09:55 → LAX 12:24AA 3288	10h 16m	100%	86%
Tight connection: often missed
United Details →	CMH 09:00 → ORD 09:36UA 466	54m Chicago	ORD 10:30 → LAX 13:09UA 1044	7h 09m	72%	55%
Alaska Details →	CMH 07:00 → SEA 09:07AS 283	56m Seattle	SEA 10:03 → LAX 12:56AS 1367	8h 56m	72%	52%
United Details →	CMH 13:14 → EWR 15:07UA 3596 · flown by Republic	53m Newark	EWR 16:00 → LAX 18:42UA 2238	8h 28m	73%	47%

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

BNA · 1h 05m · leaves 06:50 2%

CLT · 1h 18m · leaves 06:09 3%

MSP · 1h 14m · leaves 07:00 3%

Afternoon and evening

STL · 55m · leaves 20:35 43%

ORD · 46m · leaves 21:14 45%

SFO · 1h 00m · leaves 19:31 95%

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 1191 CMH 06:45 → LAS American AA 6425 LAS 10:04 → LAX Connection details →	2h 04m	7h 39m	100%	93%
Southwest WN 1193 CMH 05:10 → MCO Delta DL 504 MCO 09:45 → LAX Connection details →	2h 25m	9h 49m	100%	91%
Southwest WN 1186 CMH 05:45 → DEN United UA 405 DEN 10:02 → LAX Connection details →	3h 12m	8h 49m	98%	90%

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