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 90-minute layover misses 3% of the time at 9 am and 27% of the time at 8 pm.

Nonstops


United	ORD	CMH	1h 31m	76%	2.8%	2,702	Flying now
American	ORD	CMH	1h 29m	74%	2.8%	2,362	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ORD 06:00 → DEN 07:42UA 2806	1h 53m Denver	DEN 09:35 → CMH 14:28UA 480	7h 28m	100%	90%
United Details →	ORD 07:35 → IAH 10:36UA 1231	1h 39m Houston	IAH 12:15 → CMH 16:05UA 4072 · flown by Mesa	7h 30m	97%	85%
American Details →	ORD 05:00 → MIA 09:09AA 2984	1h 23m Miami	MIA 10:32 → CMH 13:25AA 4163 · flown by Envoy	7h 25m	97%	85%
American Details →	ORD 06:54 → BOS 10:28AA 2968	2h 12m Boston	BOS 12:40 → CMH 14:56AA 3470 · flown by Envoy	7h 02m	96%	84%
Delta Details →	ORD 07:01 → DTW 09:30DL 2039	2h 48m Detroit	DTW 12:18 → CMH 13:27DL 5774 · flown by Republic	5h 26m	96%	84%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	1h 37m Atlanta	ATL 10:10 → CMH 11:48DL 1522	5h 18m	96%	83%
Delta Details →	ORD 06:30 → MSP 08:06DL 1717	2h 08m Minneapolis	MSP 10:14 → CMH 13:08DL 2550	5h 38m	95%	82%
Delta Details →	ORD 09:45 → ATL 12:51DL 1178	1h 34m Atlanta	ATL 14:25 → CMH 15:59DL 2200	5h 15m	96%	82%
Tight connection: often missed
American Details →	ORD 16:05 → MIA 20:26AA 2910	1h 19m Miami	MIA 21:45 → CMH 00:37 +1AA 3550 · flown by Envoy	7h 32m	59%	46%
American Details →	ORD 13:57 → BOS 17:36AA 1554	1h 19m Boston	BOS 18:55 → CMH 21:16AA 4641 · flown by Republic	6h 19m	71%	45%
American Details →	ORD 13:14 → LGA 16:34AA 1478	55m New York	LGA 17:29 → CMH 19:38AA 4462 · flown by Republic	5h 22m	61%	43%

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

IAD · 53m · leaves 08:40 10%

CLT · 49m · leaves 05:07 15%

PHL · 1h 10m · leaves 08:29 16%

Afternoon and evening

MIA · 1h 01m · leaves 14:24 47%

IAD · 53m · leaves 18:12 52%

DFW · 56m · leaves 16:51 57%

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.


United UA 1344 ORD 07:20 → DTW Delta DL 5774 DTW 12:18 → CMH Connection details →	2h 26m	5h 07m	100%	89%
American AA 4104 ORD 07:05 → STL Southwest WN 3902 STL 10:05 → CMH Connection details →	1h 34m	4h 20m	94%	87%
American AA 1363 ORD 08:12 → ATL Delta DL 2200 ATL 14:25 → CMH Connection details →	3h 11m	6h 48m	97%	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