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 90-minute layover misses 8% of the time at 10 am and 23% of the time at 7 pm.

Nonstops


Delta	MKE	ATL	2h 08m	89%	2.0%	2,202	Flying now
Frontier	MKE	ATL	2h 17m	67%	1.6%	62	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 (Atlanta is 1 h ahead of Milwaukee). Layovers up to 4 hours. Pick a connection for the details.


Southwest Details →	MKE 05:45 → MDW 06:35WN 3178	2h 20m Chicago	MDW 08:55 → ATL 11:45WN 4154	5h 00m	100%	86%
Southwest Details →	MKE 07:42 → STL 09:02WN 2327	58m St Louis	STL 10:00 → ATL 12:35WN 236	3h 53m	91%	84%
Delta Details →	MKE 06:20 → MSP 07:43DL 4460 · flown by SkyWest	2h 57m Minneapolis	MSP 10:40 → ATL 14:05DL 1046	6h 45m	98%	83%
United Details →	MKE 06:20 → ORD 07:30UA 5896 · flown by SkyWest	2h 59m Chicago	ORD 10:29 → ATL 13:44UA 2684	6h 24m	96%	80%
Delta Details →	MKE 15:58 → MSP 17:15DL 2006	2h 55m Minneapolis	MSP 20:10 → ATL 23:47DL 1032	6h 49m	97%	79%
Delta Details →	MKE 08:00 → MSP 09:28DL 4458 · flown by SkyWest	3h 17m Minneapolis	MSP 12:45 → ATL 16:16DL 1048	7h 16m	98%	79%
Delta Details →	MKE 12:07 → MSP 13:29DL 561	2h 40m Minneapolis	MSP 16:09 → ATL 19:46DL 1028	6h 39m	98%	78%
United Details →	MKE 05:00 → ORD 05:59UA 5799 · flown by SkyWest	3h 08m Chicago	ORD 09:07 → ATL 12:22UA 530	6h 22m	96%	75%
Tight connection: often missed
Delta Details →	MKE 07:12 → DTW 09:30DL 3757 · flown by SkyWest	55m Detroit	DTW 10:25 → ATL 12:25DL 2856	4h 11m	71%	60%
Delta Details →	MKE 10:50 → LGA 14:09DL 5623 · flown by Republic	51m New York	LGA 15:00 → ATL 17:53DL 974	6h 03m	73%	52%
American Details →	MKE 12:52 → PHL 16:03AA 5018 · flown by PSA	1h 32m Philadelphia	PHL 17:35 → ATL 19:55AA 3041	6h 03m	74%	46%

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

MSP · 1h 12m · leaves 08:00 7%

STL · 58m · leaves 07:42 9%

ORD · 1h 13m · leaves 05:00 12%

Afternoon and evening

MSP · 1h 20m · leaves 15:58 13%

PHL · 50m · leaves 17:53 14%

CLT · 1h 08m · leaves 18:17 27%

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 2936 MKE 07:00 → BWI Delta DL 801 BWI 11:52 → ATL Connection details →	2h 02m	5h 41m	97%	84%
Southwest WN 4660 MKE 05:00 → MCO Delta DL 1213 MCO 11:05 → ATL Connection details →	2h 25m	6h 42m	100%	84%
Southwest WN 1702 MKE 11:40 → MCI Delta DL 1443 MCI 15:38 → ATL Connection details →	2h 28m	6h 09m	100%	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