Mon, Oct 5 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

No clear winner: Southwest’s DAL → VPS flights land within a few points of 4 in 5 on time whatever the hour.

Nonstops (seasonal or thin)


Southwest	DAL	VPS	1h 50m	80%	0.7%	445	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Valparaiso on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Delta Details →	DAL 06:05 → ATL 09:15DL 516	3h 05m Atlanta	ATL 12:20 → VPS 12:29DL 3092	6h 24m	98%	83%
Delta Details →	DAL 10:09 → ATL 13:20DL 441	2h 45m Atlanta	ATL 16:05 → VPS 16:19DL 3083	6h 10m	98%	77%
Delta Details →	DAL 12:19 → ATL 15:31DL 1115	2h 57m Atlanta	ATL 18:28 → VPS 18:45DL 2803	6h 26m	97%	75%
Southwest Details →	DAL 06:00 → BWI 09:55WN 1280	2h 05m Baltimore	BWI 12:00 → VPS 13:20WN 246	7h 20m	98%	72%
Southwest Details →	DAL 10:30 → HOU 11:45WN 23	3h 25m Houston	HOU 15:10 → VPS 16:55WN 4108	6h 25m	100%	68%
Delta Details →	DAL 18:40 → ATL 22:00DL 2780	1h 15m Atlanta	ATL 23:15 → VPS 23:29DL 3097	4h 50m	83%	67%
Delta Details →	DAL 15:59 → ATL 19:14DL 512	1h 21m Atlanta	ATL 20:35 → VPS 20:50DL 882	4h 51m	80%	55%
Southwest Details →	DAL 15:00 → BNA 16:50WN 5047	2h 50m Nashville	BNA 19:40 → VPS 21:05WN 2982	6h 05m	96%	47%
Tight connection: often missed
Southwest Details →	DAL 16:40 → BNA 18:30WN 1277	1h 10m Nashville	BNA 19:40 → VPS 21:05WN 2982	4h 25m	62%	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

ATL · 57m · leaves 06:05 11%

Afternoon and evening

ATL · 1h 15m · leaves 18:40 17%

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 1261 DAL 06:00 → ATL Delta DL 3092 ATL 12:20 → VPS Connection details →	3h 15m	6h 29m	100%	88%
Southwest WN 1263 DAL 16:30 → ATL Delta DL 3097 ATL 23:15 → VPS Connection details →	3h 35m	7h 00m	96%	79%
Southwest WN 1766 DAL 09:30 → ATL Delta DL 3083 ATL 16:05 → VPS Connection details →	3h 30m	6h 49m	100%	78%

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