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

The nonstop is quickest: Southwest JAX → DAL (2h 35m), on time 68% of the time. Delta via Atlanta (5h 24m) is more reliable, 86%, but takes 2h 49m longer.

Nonstops (seasonal or thin)


Southwest	JAX	DAL	2h 35m	69%	1.4%	350	Flying now

Best connections, any airlines

Most reliable Quickest (80%+ on time)

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


Delta Details →	JAX 05:30 → ATL 06:42DL 2722	3h 33m Atlanta	ATL 10:15 → DAL 11:24DL 1115	6h 54m	99%	88%
Southwest Details →	JAX 05:35 → HOU 06:50WN 2162	2h 40m Houston	HOU 09:30 → DAL 10:35WN 14	6h 00m	100%	82%
Delta Details →	JAX 10:41 → ATL 11:56DL 2326	2h 03m Atlanta	ATL 13:59 → DAL 15:03DL 512	5h 31m	98%	81%
Delta Details →	JAX 16:14 → ATL 17:32DL 2990	3h 43m Atlanta	ATL 21:15 → DAL 22:34DL 1104	7h 20m	97%	77%
Delta Details →	JAX 11:48 → ATL 13:03DL 2356	3h 35m Atlanta	ATL 16:38 → DAL 17:55DL 2780	7h 07m	100%	75%
Southwest Details →	JAX 06:20 → BNA 06:50WN 2155	1h 15m Nashville	BNA 08:05 → DAL 10:00WN 486	4h 40m	98%	72%
American + Southwesttwo ticketsDetails →	JAX 06:19 → CLT 07:46AA 1834	2h 49m Charlotte	CLT 10:35 → DAL 12:05WN 148	6h 46m	98%	71%
Southwest Details →	JAX 07:45 → MDW 09:05WN 1384	3h 15m Chicago	MDW 12:20 → DAL 14:35WN 2757	7h 50m	100%	69%
Tight connection: often missed
Delta Details →	JAX 19:04 → ATL 20:29DL 2627	46m Atlanta	ATL 21:15 → DAL 22:34DL 1104	4h 30m	67%	53%
Southwest Details →	JAX 17:20 → DEN 18:50WN 2161	1h 40m Denver	DEN 20:30 → DAL 23:30WN 1523	7h 10m	48%	20%

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 15m · leaves 06:20 2%

MDW · 55m · leaves 07:45 9%

Afternoon and evening

ATL · 46m · leaves 19:04 33%

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.

The table above includes two-ticket connections (marked “two tickets”), held to the 90-minute minimum. One ticket only →

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