Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: airlines and hours on this route all land within a few points of 4 in 5 on time.

Nonstops


American	CMH	DFW	2h 59m	81%	2.3%	1,727	Flying now
Delta	CMH	DFW	–	100%few flights	0.0%	1	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	CMH 08:04 → DTW 09:15DL 5812 · flown by Republic	3h 30m Detroit	DTW 12:45 → DFW 14:32DL 1041	7h 30m	100%	83%
American Details →	CMH 07:00 → MIA 09:44AA 3667 · flown by Envoy	2h 31m Miami	MIA 12:15 → DFW 14:34AA 3290	8h 34m	99%	83%
American Details →	CMH 05:08 → MIA 07:51AA 3662 · flown by Envoy	1h 09m Miami	MIA 09:00 → DFW 11:12AA 1227	7h 04m	99%	82%
Delta Details →	CMH 06:00 → ATL 07:36DL 2469	2h 16m Atlanta	ATL 09:52 → DFW 11:12DL 961	6h 16m	97%	81%
Delta Details →	CMH 07:00 → MSP 08:03DL 2403	2h 00m Minneapolis	MSP 10:03 → DFW 12:30DL 2970	6h 33m	98%	80%
Delta Details →	CMH 07:05 → ATL 08:42DL 2909	2h 46m Atlanta	ATL 11:28 → DFW 12:50DL 414	6h 45m	98%	79%
American Details →	CMH 11:10 → CLT 12:42AA 2395	2h 22m Charlotte	CLT 15:04 → DFW 16:58AA 1709	6h 48m	100%	78%
American Details →	CMH 05:30 → ORD 06:00AA 4487 · flown by Republic	3h 40m Chicago	ORD 09:40 → DFW 12:13AA 3052	7h 43m	100%	78%
Tight connection: often missed
United Details →	CMH 09:00 → ORD 09:36UA 466	53m Chicago	ORD 10:29 → DFW 13:12UA 441	5h 12m	70%	51%
United Details →	CMH 17:55 → ORD 18:34UA 545	1h 16m Chicago	ORD 19:50 → DFW 22:36UA 1673	5h 41m	72%	42%
American Details →	CMH 17:19 → LGA 19:12AA 4617 · flown by Republic	47m New York	LGA 19:59 → DFW 23:05AA 3323	6h 46m	59%	30%

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

MIA · 1h 16m · leaves 07:00 1%

CLT · 1h 17m · leaves 06:09 3%

ORD · 1h 06m · leaves 05:30 4%

Afternoon and evening

PHX · 1h 12m · leaves 18:00 10%

DCA · 47m · leaves 16:42 39%

LGA · 47m · leaves 17:19 41%

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 1186 CMH 05:45 → DEN United UA 355 DEN 09:40 → DFW Connection details →	2h 50m	8h 03m	98%	92%
Southwest WN 1193 CMH 05:10 → MCO American AA 2124 MCO 11:16 → DFW Connection details →	3h 56m	8h 57m	100%	84%
Southwest WN 1191 CMH 06:45 → LAS American AA 1584 LAS 10:11 → DFW Connection details →	2h 11m	9h 23m	100%	84%

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