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 8% of the time at 8 am and 31% of the time at 4 pm.

Nonstops


Delta	STL	DTW	1h 35m	86%	1.6%	1,298	Flying now
Southwest	STL	DTW	1h 30m	73%	0.2%	597	Flying now
Spirit	STL	DTW	1h 30m	84%few flights	0.0%	19	Not flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	STL 08:49 → MSP 10:30DL 5325 · flown by Endeavor	2h 25m Minneapolis	MSP 12:55 → DTW 15:38DL 1519	5h 49m	99%	89%
Delta Details →	STL 06:00 → ATL 08:38DL 1524	2h 22m Atlanta	ATL 11:00 → DTW 12:55DL 1240	5h 56m	99%	82%
United Details →	STL 06:14 → IAH 08:31UA 6283 · flown by Mesa	1h 14m Houston	IAH 09:45 → DTW 13:42UA 4064 · flown by Mesa	6h 28m	91%	81%
Delta Details →	STL 06:21 → MSP 07:57DL 1597	1h 03m Minneapolis	MSP 09:00 → DTW 11:43DL 1433	4h 22m	92%	81%
Southwest Details →	STL 05:40 → MDW 06:45WN 1008	1h 10m Chicago	MDW 07:55 → DTW 10:05WN 1775	3h 25m	96%	81%
Delta Details →	STL 09:24 → ATL 12:02DL 1571	1h 45m Atlanta	ATL 13:47 → DTW 15:43DL 1031	5h 18m	98%	80%
American Details →	STL 05:10 → CLT 08:03AA 858	3h 12m Charlotte	CLT 11:15 → DTW 13:01AA 1781	6h 51m	99%	78%
Delta Details →	STL 11:18 → MSP 12:55DL 3188	3h 20m Minneapolis	MSP 16:15 → DTW 18:59DL 1476	6h 42m	100%	77%
Tight connection: often missed
Delta Details →	STL 12:35 → LGA 16:09DL 4922 · flown by Endeavor	51m New York	LGA 17:00 → DTW 19:15DL 999	5h 40m	69%	47%
American Details →	STL 17:48 → PHL 21:10AA 2714	54m Philadelphia	PHL 22:04 → DTW 23:59AA 5169 · flown by PSA	5h 11m	70%	46%
United Details →	STL 16:53 → EWR 20:30UA 3564 · flown by Republic	52m Newark	EWR 21:22 → DTW 23:30UA 3412 · flown by Republic	5h 38m	48%	28%

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 · 1h 15m · leaves 07:08 3%

MDW · 1h 10m · leaves 05:40 4%

MSP · 1h 03m · leaves 06:21 8%

Afternoon and evening

BNA · 1h 20m · leaves 19:05 26%

PHL · 54m · leaves 17:48 30%

LGA · 51m · leaves 12:35 31%

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 3894 STL 06:15 → BWI Delta DL 1546 BWI 12:32 → DTW Connection details →	3h 14m	6h 53m	100%	87%
Southwest WN 3961 STL 08:15 → MSP Delta DL 1519 MSP 12:55 → DTW Connection details →	3h 10m	6h 23m	94%	85%
American AA 1308 STL 06:14 → PHL Delta DL 2331 PHL 12:36 → DTW Connection details →	3h 02m	7h 08m	96%	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