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 1 time in 10 at 9 am and 2 times in 5 at 7 pm.

Nonstops


United	ORD	JAX	2h 34m	77%	0.8%	1,115	Flying now
American	ORD	JAX	2h 31m	72%	2.0%	1,001	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	ORD 06:29 → IAH 09:18UA 1799	2h 52m Houston	IAH 12:10 → JAX 15:37UA 4048 · flown by Mesa	8h 08m	100%	83%
Delta Details →	ORD 08:36 → MSP 10:15DL 1554	2h 42m Minneapolis	MSP 12:57 → JAX 16:54DL 2392	7h 16m	96%	81%
Delta Details →	ORD 05:30 → ATL 08:33DL 1264	2h 15m Atlanta	ATL 10:48 → JAX 12:00DL 2923	5h 30m	97%	81%
United Details →	ORD 07:05 → DEN 08:55UA 1217	1h 10m Denver	DEN 10:05 → JAX 15:39UA 1451	7h 34m	94%	80%
United Details →	ORD 07:10 → EWR 10:30UA 563	2h 31m Newark	EWR 13:01 → JAX 15:42UA 2678	7h 32m	99%	79%
Delta Details →	ORD 08:52 → DTW 11:23DL 4456 · flown by SkyWest	3h 40m Detroit	DTW 15:03 → JAX 17:27DL 2994	7h 35m	97%	78%
Delta Details →	ORD 06:35 → ATL 09:41DL 1247	2h 52m Atlanta	ATL 12:33 → JAX 13:43DL 3024	6h 08m	98%	77%
Delta Details →	ORD 08:05 → ATL 11:08DL 2426	2h 49m Atlanta	ATL 13:57 → JAX 15:07DL 2990	6h 03m	98%	75%
Tight connection: often missed
American Details →	ORD 13:25 → DFW 15:59AA 1120	1h 46m Dallas-Fort Worth	DFW 17:45 → JAX 21:14AA 2449	6h 51m	72%	40%
American Details →	ORD 14:59 → DFW 17:36AA 2257	1h 16m Dallas-Fort Worth	DFW 18:52 → JAX 22:24AA 2263	6h 25m	70%	32%
American Details →	ORD 11:59 → DFW 14:32AA 3264	48m Dallas-Fort Worth	DFW 15:20 → JAX 18:48AA 1980	5h 49m	51%	27%

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

DEN · 1h 10m · leaves 07:05 6%

ATL · 1h 07m · leaves 06:35 10%

DCA · 59m · leaves 08:00 24%

Afternoon and evening

EWR · 1h 15m · leaves 16:31 33%

IAH · 50m · leaves 16:05 41%

DFW · 48m · leaves 16:51 64%

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.


American AA 4162 ORD 08:22 → MSP Delta DL 2392 MSP 12:57 → JAX Connection details →	2h 51m	7h 30m	98%	82%
United UA 425 ORD 07:12 → ATL Delta DL 2990 ATL 13:57 → JAX Connection details →	3h 30m	6h 56m	100%	81%
American AA 3498 ORD 10:00 → DTW Delta DL 2994 DTW 15:03 → JAX Connection details →	2h 31m	6h 27m	95%	76%

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