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 7% of the time at 9 am and 1 time in 4 at 5 pm.

Nonstops


Delta	SDF	ATL	1h 30m	90%	1.6%	2,771	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


United Details →	SDF 07:15 → ORD 07:56UA 3422 · flown by Republic	2h 33m Chicago	ORD 10:29 → ATL 13:44UA 2684	6h 29m	98%	84%
Delta Details →	SDF 12:40 → MSP 13:48DL 4988 · flown by Endeavor	3h 27m Minneapolis	MSP 17:15 → ATL 20:56DL 1036	8h 16m	100%	83%
United Details →	SDF 08:00 → DEN 08:59UA 1506	1h 01m Denver	DEN 10:00 → ATL 15:10UA 2424	7h 10m	95%	80%
American Details →	SDF 05:04 → CLT 06:41AA 5255 · flown by PSA	2h 29m Charlotte	CLT 09:10 → ATL 10:41AA 5039 · flown by PSA	5h 37m	93%	80%
Delta Details →	SDF 07:50 → DTW 09:16DL 5824 · flown by Republic	1h 09m Detroit	DTW 10:25 → ATL 12:25DL 2856	4h 33m	93%	79%
Delta Details →	SDF 06:49 → MSP 08:00DL 4928 · flown by Endeavor	2h 40m Minneapolis	MSP 10:40 → ATL 14:05DL 1046	7h 16m	96%	79%
Delta Details →	SDF 06:00 → LGA 08:15DL 5652 · flown by Republic	2h 44m New York	LGA 10:59 → ATL 13:20DL 993	7h 20m	99%	78%
Delta Details →	SDF 10:35 → DTW 12:06DL 3821 · flown by SkyWest	2h 51m Detroit	DTW 14:57 → ATL 17:05DL 1983	6h 30m	98%	75%
Tight connection: often missed
Delta Details →	SDF 17:55 → MSP 19:09DL 5017 · flown by Endeavor	1h 01m Minneapolis	MSP 20:10 → ATL 23:47DL 1032	5h 52m	59%	49%
American Details →	SDF 18:25 → PHL 20:23AA 5394 · flown by PSA	1h 35m Philadelphia	PHL 21:58 → ATL 00:15 +1AA 443	5h 50m	68%	45%
United Details →	SDF 15:41 → IAH 17:10UA 6310 · flown by Mesa	55m Houston	IAH 18:05 → ATL 21:18UA 2050	5h 37m	75%	34%

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 01m · leaves 08:00 5%

ORD · 1h 11m · leaves 07:15 6%

DTW · 1h 09m · leaves 07:50 7%

Afternoon and evening

BOS · 1h 05m · leaves 12:49 19%

IAH · 55m · leaves 15:41 25%

MSP · 1h 01m · leaves 17:55 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 3604 SDF 07:25 → BNA Delta DL 3069 BNA 09:48 → ATL Connection details →	2h 33m	4h 36m	100%	88%
Southwest WN 3609 SDF 08:45 → MDW Delta DL 1063 MDW 11:05 → ATL Connection details →	2h 05m	5h 16m	100%	85%
Southwest WN 4612 SDF 05:50 → BWI Delta DL 1592 BWI 10:33 → ATL Connection details →	3h 08m	6h 34m	98%	83%

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